0445120231 CRIN2 Common Rail Injector for Komatsu PC200 and Cummins
New 0445120231 Bosch 120 series common rail diesel injector (0 445 120 231) for Komatsu PC200-8 and PC220-8 excavators and Cummins QSB6.7 engines. A Vidishi Auto compatible replacement, 12-month warranty. Single package 25 x 7 x 12 cm, 1.200 kg gross. MOQ 2 pcs. Wholesale export supply.
Original price was: $90.00.$58.00Current price is: $58.00.
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Product Specifications
| Weight | 1.2 kg |
|---|---|
| Dimensions | 25 × 7 × 12 cm |
| make | |
| model | |
| engine | |
| position |
Product Details
0445120231 Common Rail Injector by the Numbers
Verified identity and fitment data for this 120 series injector, supplied for the Komatsu engine range.
An injector is a different purchase from a control unit. The article arrives as a sealed 120 series injector with the nozzle and the solenoid already built in, so the job is a swap plus a coding step rather than a bench rebuild. Because the same 0445120231 hardware carries different calibration between engine revisions, one injector is matched by the number printed on its body, and a workshop replacing a faulty unit will order the exact body number rather than a machine-year guess. On the Komatsu platform a single injector can be swapped without disturbing the rest of the fuel system, which is what makes per-cylinder replacement practical on a high-mileage machine that cannot stand still for long. The 0445120231 for komatsu is a direct compatible replacement quoted by the body number rather than the machine model.
Engine Compatibility for 0445120231
This injector serves the Komatsu applications below. Match the body part number and the engine code before ordering. A komatsu diesel injector such as 0445120231 covers the Komatsu 120 series family.
| Injector | Bosch reference | Description |
|---|---|---|
| DSLA128P5510 | 0433175510 | Injector nozzle (matched) |
| F00RJ02130 | F 00R J02 130 | Control valve (matched) |
| F00RJ02697 | F 00R J02 697 | Solenoid valve (matched) |
Engine and machine applications
| Make | Engine | Description | Fitment | Injector |
|---|---|---|---|---|
| Komatsu | PC200-8 excavator | SAA6D107E-1 | 2008- | 0445120231 |
| Komatsu | PC220-8 excavator | SAA6D107E-1 | 2013- | 0445120231 |
| Cummins | QSB6.7 engine | QSB6.7 | â | 0445120231 |
Read across in machine terms: the komatsu pc200 injector listing and the pc200-8 injector listing resolve to this same article, and an order placed as a komatsu excavator injector for a SAA6D107E machine arrives as the unit described here. The komatsu sa6d107 injector and the komatsu 6d107 injector call-outs that workshops use follow the same body number, and on the Cummins side the cummins qsb6.7 injector and qsb6.7 injector references point at the same assembly.
Cross-check the numbers on the part rather than the wording on the invoice: the Komatsu catalogue number is komatsu 6754113011 (6754-11-3011) and the Cummins number is cummins 5263262. The injector also carries the earlier Bosch number 0445120059, written 0 445 120 059, so a bin labelled bosch 0445120059 holds the same article. Send the number off your own unit and we confirm which of these it is.
Part number match
Match the number on your old injector to 0445120231, or to the spaced Bosch form 0 445 120 231. A 0445120231 komatsu injector is the Komatsu 120 series unit described here. A 0445120231 injector replacement is matched by the body number, so send a photo of the old injector if you are unsure. As a komatsu diesel injector this reference covers the Komatsu 120 series range, because a Komatsu 120 series injector for one engine is the same 120 series hardware for the others. A common rail injector for komatsu and a komatsu common rail injector fitment share the same Bosch 120 series hardware on the machines listed above, with no change to the injector itself.
The approach works the same whichever of those labels your own paperwork uses — the number on the body and the engine code are what we confirm, and a 0445120231 injector is the same article by whichever machine it is quoted.
Fitment verification
- Injector part number — match the etched code on the injector body to 0445120231, or to the spaced form 0 445 120 231.
- Engine code plate — the plate on the block must read a Komatsu engine fitted with the Bosch 120 series platform, not another family.
- Photo of the old injector — a picture of the body marking and the engine code, so we match the revision and not just the model.
What a common rail injector does
On a diesel with the Bosch common rail system the injector is the final actuator that turns fuel pressure into a precisely metered spray.
On a diesel with the Bosch common rail system the injector receives high-pressure fuel from the rail and releases it into the cylinder on command from the engine control module. On Komatsu diesels this is the 120 series solenoid injector, a crin injector and high pressure common rail injector in one body: the electronic diesel injector that bolts into the cylinder head and converts the rail pressure into the spray pattern the combustion needs. That makes it the point where the electronic side of the engine meets the hydraulic side — a diesel common rail system receives the trigger, opens the solenoid, and lets the metering valve set the quantity for every firing event.
The distinction that matters when buying is between a complete injector and the parts inside it. A bosch common rail injector of this family arrives sealed, built and coded; a repair is a bench job on the nozzle and valve, not a swap. Both routes exist on this platform and the choice is usually about bench time and warranty exposure rather than about the part itself. The crin2 common rail injector and a compatible unit are described by the same words in a parts catalogue, so the two fields that settle the match are the number on the body and the calibration the ECU expects.
Metering
Releases injection quantity from the rail pressure set by the high-pressure pump.
Atomisation
Shapes the spray so the fuel burns evenly across the load and speed range.
Coding
Carries a calibration the ECU reads, so the injector is written in after fitting.
An injector for diesel engine duty must hold its calibration through the life of the body. Because the injector is coded, the same physical part behaves differently depending on the data it carries. The Bosch 120 series injector is the actuator that holds that calibration, and an injector that has not been told which one it is driving will run with default maps. That is why a swap is a two-part job: fit the injector, then write the code. The engine will usually start either way, which is exactly what makes the second step easy to forget. When the choice is an injector repair or replace decision, the bench test settles it: a sound body is worth rebuilding, a contaminated one is not.
An injector on this platform is a robust design, and much of the failure comes from contamination at the nozzle or from a wiring fault rather than from the solenoid itself. The 120 series injector sits in the cylinder head, so an injector that has begun to drift shows as a stored fault code and a misfire behind it. Judging an injector on whether the engine still runs tells you almost nothing; judging it on the fault codes and the live data tells you nearly everything.
Two numbers worth separating: the article number identifies the injector you are holding, and the calibration code identifies how that individual piece should be mapped. An injector that carries the right number but the wrong software will still allow the engine to run, and the live data will look almost plausible — which is why we ask for both, and not the machine model.
Diesel, fuel or 120 series injector — three trade names
Which of those names a supplier writes on the offer depends on who is buying. A workshop ordering a replacement quotes the number on the old part. A fleet parts desk sourcing for an operator quotes the engine code instead. A distributor stocking the 120 series range quotes the family. The article behind all three labels is the same injector, and so is the test that settles the match: the number on the body and the calibration the ECU expects.
That is the reason we ask for the article number rather than the machine model. Whether your own paperwork calls this a crin2 common rail injector, a common rail injector for komatsu or simply a fuel injector diesel for the Komatsu range, the code on the part is what we confirm, and the code we ship against is the one you state. The common rail architecture here is the same Bosch reference design used across the Komatsu engine families.
Technical Specifications
Verified parameters for this injector, graded at the Komatsu 120 series platform level. Items the manufacturer does not publish are flagged, not guessed. The full common rail injector assembly is graded here, not by a generic catalogue line.
- Confirmed — taken from the reference part records and injector fitment data.
- Reference — numbers that describe the same article group, not a claim of OE equivalence.
- Not published — values that depend on the bench test report or the injector revision; we do not state a figure we have not verified.
| Reference / OE number | 0445120231 (Bosch 0 445 120 231) |
|---|---|
| Component type | Common rail injector (120 series, solenoid) |
| Fuel system | Bosch common rail (120 series generation) |
| Interchange references | 0 445 120 231, 0445 120 231, 6754-11-3011 |
| Engine code | SAA6D107E-1 / SAA4D107 / QSB6.7 |
| Application | Komatsu SAA6D107E-1 and Cummins QSB6.7 engines, Bosch 120 series platform |
| Matching control valve | F 00R J02 130 (F00RJ02130) |
| Matching nozzle | DSLA128P5510 (0433175510) |
| Matching gasket | Not published |
| Support system max pressure | Not published |
| Condition | New |
| Warranty | 12 months |
| Nozzle type | Not published |
| Flow rate | Not published |
| Calibration trim code | Not published |
The matched nozzle for this injector is the DSLA128P5510, Bosch number 0433175510, so the injector nozzle 0433175510 is the part that sits inside the assembly described here and is not supplied separately on this listing. On the bench the unit is judged on an injector flow test and an injector pop test rather than on appearance, and both readings are what the test report records. The engine side of the application is the Komatsu SAA6D107E-1 and SAA4D107 family and the cummins qsb6.7, four and six cylinder units that share the same Bosch 120 series platform.
Parameters marked Not published are not asserted anywhere on this page, and no figure is substituted for them further down. The matching control valve F00RJ02130 and the matched nozzle DSLA128P5510 are stated as the components that pair with this injector, listed across independent parts catalogues. Where your workshop needs a specific reading, request the test report for the injector you receive. The calibration code etched on the cap of the injector you receive is what the ECU is written with after fitting.
The line between a bosch crin2 injector and a compatible one is a line about branding, not about function. What the table above describes is a Bosch 120 series injector built to the 0445120231 architecture: a sealed body, a solenoid, a nozzle and a calibrated metering valve. Because the injector is tested as a whole, the figures that matter most — calibration, flow and spray — are the ones the bench produces rather than the ones a catalogue quotes, which is why they are left unpublished here rather than filled in from a similar listing. A 0445120231 diesel injector run on contaminated fuel will fail its nozzle long before the solenoid, so fuel quality is the largest single factor in how long a replacement lasts. Buyers comparing diesel injector assembly, fuel injector diesel and common rail injector assembly specifications across suppliers should expect the same set of published fields from each, and the same honesty about the fields nobody publishes.
120 series injector, solenoid injector, fuel injector — what the terms cover
All three descriptions point at the same injector on this platform, and none of them narrows the specification. A counter serving workshops tends to write the part up with the shorter wording and quote the number on the old unit. A parts desk buying for a fleet writes it up with another and quotes the engine. What arrives in the box is identical either way: a bosch common rail injector built to the 120 series reference design.
What does change the specification is the calibration code, and the code is not written in the trade name. Since an electromagnetic injector carries a calibration the ECU reads, an incorrect or unwritten code will leave the new part running on default maps whatever the label on the carton says. That is a different failure mode from the older practice of grading a part by its description alone, and it is why we record both the article number and the coding step on the offer we send.
Common rail injector technology on this engine has been stable for well over a decade, which is what makes a complete replacement practical: the body, the connector and the mounting arrangement are shared across the production years, so the same injector fits machines built in different seasons. Where a buyer writes the order as a crin2-16 common rail injector and the supplier lists it as a fuel injector, both are naming parts of the same build, and the injector that arrives is the whole article rather than a component.
Failure Symptoms
Common injector failure signs to watch for on the Komatsu diesel before an injector is replaced. Most common rail injector problems show first as a rough idle or a stored fault code rather than a hard no-start.
- Rough idle or a persistent cylinder misfire
- Hard starting or extended cranking
- Stored fault codes naming an injector circuit
- White or black smoke from the exhaust
- Elevated fuel consumption
- Knock or uneven combustion under load
- Loss of power on a specific cylinder
- Contamination found at the nozzle tip
Diesel injector failure is rarely a sudden event; it builds from contamination at the nozzle tip. Injector symptoms diesel owners report most often are a cylinder-specific misfire and a stored fault code. Injector failure symptoms overlap with pump, sensor and wiring problems, and 120 series injector problems on this family are the same set of codes seen through a different lens, so a scan tool reading plus a live-data check is the normal way to isolate a single injector. Summaries of the stored codes are grouped on our diesel fault codes page, and the list above can be read alongside live data rather than trusting a guess. Diesel injector fault symptoms on this family usually present as a cylinder-specific misfire that points back at the injector, which is exactly the part this page describes.
A structured approach beats swapping parts. Start with injector troubleshooting against live data: watch the per-cylinder contribution figures for injector balance and compare the injector back leakage of each unit with a return-flow jar. A cylinder whose back leakage climbs while its contribution falls is the one to pull, and that combination is far more reliable than reading fault codes alone.
Most 120 series injector problems on this engine start with fuel quality or contamination rather than with the solenoid. The classic giveaway is a misfire that follows a tank of poor fuel, then clears after the system is flushed. Letting the machine run on until the early signs turn into a hard fault rarely saves money, because an injector that has been killed by contamination will usually have taken the nozzle with it. A replacement should follow a confirmed diagnosis: read the fault codes, check the fuel and the harness, and only then commit to the injector the ECU is flagging. Renewing the fuel filter alongside the injector is worth considering on a high-mileage machine, where the supply is usually at the same stage of wear.
Replacement and coding notes
Fitting an injector is a cleanliness-critical job with a second, electronic step that decides whether the engine runs properly. A correct common rail injector installation starts with clean fuel and ends with the calibration written into the ECU.
Confirm the code
Record the article number and the calibration on the injector you are removing before stripping anything.
Relieve pressure
Depressurise the common rail and work on a clean, dry bench to protect the nozzle and the connector.
Inspect the seat
Check the cylinder-head injector seat and the seal ring for carbon, corrosion or damage before fitting the new unit.
Fit and torque
Seat the injector squarely and torque the fixing to the figure your workshop data gives.
Write the code
Transfer or rewrite the calibration with a suitable scan tool before the engine is run in earnest.
Clear and test
Clear the fault codes, run to temperature and confirm live data before a working test.
An injector replacement on this engine is normally done in the vehicle rather than on the bench, because the injector is a complete article and nothing inside it is being opened. The cleanliness discipline still applies: the nozzle seat must be clean and the seal ring sound, or the new injector will leak or misfire. Where the job is being done as part of a fuel-system service, a fresh seal ring and a new seal are worth ordering at the same time.
Injector coding is the step most often missed, and a 120 series injector installation done without it will run rough even though the mechanical work was correct. Until the calibration is written in, the ECU will run on default maps. Help reading the values before and after is available through our fuel system maintenance notes, and the full sequence is set out in our injector fitting guide and installation notes. A unit that needs a bench job rather than a swap goes to an injector rebuild, and the removed body yields injector parts worth keeping only when the body itself is sound.
Injector service notes: trim, programming and leak-off checks
Write the coding in first, then confirm it took: injector programming that is interrupted leaves the ECU on a default map. The calibration is what an injector trim value is drawn from, so record it against the cylinder you fitted it to. After the first run, check the injector return flow and the injector leak off at idle; a figure that climbs over the first hour points at a seating problem rather than at the electronics, and it is much cheaper to catch then than after a working shift.
Reference and interchange numbers
Need an injector cross reference or a 0445120231 equivalent? The numbers below are the ones buyers match against. All are reference interchanges only.
A 0445120231 cross reference lists the Bosch exchange number 0 445 120 231 alongside the spaced form 0445 120 231, so a buyer can match the injector by either route. A 0445120231 crin2 injector search returns the same 120 series article, which is why both routes are quoted together. Cross-checking against the engine parts book is safe only when the old injector or the engine parts book carries that number. A bosch 0 445 120 231 number lookup is filed under both the exchange number and the spaced form, so a search for a bosch 0445120231 listing and a search for the spaced number lead to the same article. A plain injector interchange by internal number walks the same path from the other end, starting from the Bosch number rather than the engine one. These numbers identify one article group; they are not a statement that this injector is an original-equipment part.
The body also carries a production marking alongside the article number, reproduced here only so a buyer can recognise what they are reading. The complete injector carries its own number and its own calibration code, and the table above deliberately stops at article level. If your old injector is stamped with a number that does not appear here, send us a photograph of the body before ordering and we will check it against the 120 series range. Where a listing gives an injector cross reference figure, check that it names the engine as well as the number, because an interchange written without the platform is not a match.
Two suppliers can quote the same article under different wording — one listing a replacement injector, another an exchange unit for the Komatsu range, a third a short maker number. None of those descriptions identifies the article on its own. The two fields that do are the full number and the engine the injector is built for, which is why we record both on the offer we send. A crin2 injector for komatsu and a crin2-16 common rail injector are the same hardware by either label.
Build quality and inspection
Every injector is built and checked before it leaves us.
Each injector is built to the 0445120231 architecture used by the Komatsu diesels, so the body, the connector and the calibration match the injector it was built for. The nozzle, the solenoid and the metering valve are set as part of the build rather than added afterwards. The paired control valve F00RJ02130 and nozzle DSLA128P5510 are the components that list with this injector family.
The internal numbers inside the injector are revision-dependent: confirm by the number on the body before ordering, because this engine can carry more than one revision across its production years. That is also why we take a photograph of the injector body rather than relying on a catalogue entry.
Injectors are checked electrically and for spray before they leave us. Where a workshop wants figures rather than a pass or fail, the injector can be run on a bench tester and the diesel injector test report supplied with the order. An injector test bench reading lets a buyer see the spray and the leak in writing, and an injector quality inspection against the body number is part of that record. Alongside complete injectors we hold related fuel-system parts for this family, so a rebuilder can service an injector instead of replacing it whole; injector testing and injector cleaning service are offered for returned cores where the body is worth keeping.
An injector remanufactured from a contaminated body is a different article from a new one, and this page describes a new injector; the test report is what lets a buyer see the difference in writing.
Fuel injector cleaning service and bench checks
Where a unit is being assessed rather than replaced, the bench route is a controlled fuel injector cleaning service followed by a spray and leak test, and the figures come back in writing. Cleaning is worth doing before condemning a body: contamination at the seat can mimic a worn unit, and an ultrasonic pass often separates the two. Two consumables are worth holding on the shelf as well. Renew the injector washers every time a unit comes out, and treat an injector seized in its bore as a puller job rather than a levering one, because the seat takes the damage otherwise. A fuel injector cleaning service is not a repair to a worn needle, and we say so rather than sell one as the other.
Wholesale & bulk supply
Vidishi Auto is an export supplier of diesel fuel-system parts, serving workshops, rebuilders and distributors who service Bosch 120 series injectors in volume. Our common rail injector wholesale programme supplies single pieces through container quantities.
2 pcs, with tiered terms as quantity rises.
Matched batches for workshop stock and engine sets.
Each injector is carton-sealed for freight.
Our 120 series injector wholesale and wholesale diesel injectors programme runs from a single piece through to container quantities. Our wholesale injector programme covers the Komatsu 120 series range, and as one of the injector suppliers serving export workshops we consolidate mixed fuel system orders into a single shipment. Where a workshop buys a few injectors at a time to cover a failed unit, the bosch injector price is quoted on tiered terms rather than on a single unit, and the effective common rail injector price per piece falls as the batch grows. Buyers who place a standing order usually want the same article from batch to batch, which is what our stock holding is arranged to give. Send your required quantity and destination port for a quotation. Tiered terms and lead times are on our wholesale pricing page. Our injector supply covers the Komatsu 120 series range and the wider Bosch common rail family.
We supply wholesale injectors to rebuilders and to engine-set buyers, and an injector bulk order is packed to a single shipping mark so the cartons stay together in transit. If you are an injector dealer or an injector stockist holding this reference as a standing line, ask for tiered terms against your annual figure rather than against a single carton, and we will quote on that basis.
Packaging, weight and shipping
Export packing and freight for single boxes through container volumes, quoted per order. The common rail injector cost is quoted per quantity, with the single-unit box packed for export.
25 × 7 × 12 cm.
1.2 kg gross per pack.
2 pcs.
Injector boxed, wrap, carton sealed.
The 25 × 7 × 12 cm pack is sized for a single boxed injector, so a small batch for the Komatsu engine range ships as a compact carton rather than a stack of oversize boxes. The packaged shipping weight is 1.2 kg gross per pack, which covers the injector, its connector cap and the sealed bag. Freight options and delivery estimates are set out on our shipping information page; returns and cancellations are covered under returns.
The injector cost for this reference moves with quantity and freight, so injector pricing is quoted per batch rather than per single unit and the figure that applies to your order is the one quoted and confirmed before dispatch. Whether you are comparing a quotation from a local distributor or a common rail injector cost from another exporter, ask for it to include freight and the warranty terms so the comparison is like for like. Where an injector is listed as an injector for sale at a headline figure, check whether the price is per piece and whether freight is included before you commit. A diesel injector cost quoted per batch is the honest basis for a wholesale comparison, and our injector repair service and injector rebuild service options are quoted separately where a rebuild beats a fresh unit.
For a single injector the courier option is usually the fastest route; for a workshop quantity, a consolidated carton or a pallet brings the freight cost per piece down. Where a shipment is going to a resale address, ask for the commercial invoice and packing list to be issued with the dispatch documents so customs clearance is not held up at the destination.
Frequently Asked
Common questions about the 0445120231 injector and ordering a compatible replacement.
Is 0445120231 an original Bosch injector?
Is this a complete injector or just a component?
Which engines does this injector fit?
How do I know it fits my engine?
What is the minimum order quantity?
Do I need to code the new injector?
Can an injector fault clear on its own?
What does injector coding involve?
What warranty applies?
Which other numbers refer to the same article?
What is the lead time, and can I return an unused injector?
Do I need to replace the whole set at once?
Can a cleaning kit fix a bad injector?
The injector will not come out of the head. What now?
Can you test the injector I receive?
Need Help matching?
Send the engine nameplate and a photo of the old injector; we confirm the 0445120231 match before you pay.
Article number and engine code confirmed against the 120 series applications.
Available for the injector that is shipped, on request.
Help with the calibration and with reading fault codes before you commit to a replacement.
Order the 0445120231 injector
Confirm your article number and we will match the injector to your Komatsu engine. Minimum order two pieces, with wholesale quantities available.
Brand and compliance note
Vidishi Auto supplies compatible replacement parts on an independent basis. Brand names appear on this page only to describe the application.
Vidishi Auto is an independent supplier of compatible replacement parts. Reference to Bosch and Komatsu is made only to describe the application and the reference design. Those names, and the part numbers quoted on this page, are the property of their respective owners, and this page does not imply any affiliation with or endorsement by them.
The assembly described here is not a Bosch-branded product. An injector not genuine bosch part, as this listing describes, is a Vidishi Auto compatible replacement warranted for 12 months rather than an original Bosch article. It is offered for the Komatsu 120 series applications listed above.
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