Air Dryer D149245 3515010-368

Specifications

Fitment & verification

How to identify the correct unit: locate the reference number stamped on your original component or in the vehicle parts catalogue, then cross-check it against the number below before ordering. Trim and market variants exist for many applications, so the short check is worth the minute before checkout.

How to identify & confirm fitment in 4 steps

1. Locate the OE / reference number on your old part or in the vehicle parts catalogue.

Cross-reference coverage for dongfeng air dryer, cnhtc air dryer and sinotruk air dryer is listed above; confirm your VIN before ordering.

2. Match it to 3515010-368 shown on this page.
3. Send your VIN and engine code plate so our team runs an exact-fit check.
4. Receive fitment confirmation before we dispatch your order.

Fitment checks for air dryer fitment follow the four steps below.

Overview & context

Stocked for Dongfeng, CNHTC, Sinotruk and referenced by 3515010-368.

Key features

Buyers searching compressed air dryer and truck brake system air dryer look for the strengths listed here: direct fit, verified reference and wholesale packing.

Materials & construction

Built to the original equipment drawing, the Air Dryer follows the same inspection checkpoints as the reference sample. Tolerances that affect installation are held to the drawing rather than adjusted on the bench.

• Surface treated to resist corrosion in road and workshop conditions.
• Dimensional check against the reference sample before packing.

Material and build choices answer the most common air dryer replacement and air dryer guide questions from workshop buyers.

Application & fitment

Suitable for Dongfeng, CNHTC, Sinotruk. Air Dryer is stocked for these markets and model families so buyers can match demand without re-checking every listing.

Engineering notes

Technical background. Treat this air processing unit as an assembly whose life is decided by its consumables. The spin-on desiccant cartridge (cartridge reference 4324102412 is cited for this family) is the primary wear item, and it is routinely finished early by oil mist from a worn compressor, so judge compressor oil passing at every cartridge change. Plan concurrent service of the purge valve diaphragm, the outlet check valve that stops tanks bleeding back through the dryer, the heater/thermostat element, and the integrated four-circuit protection valve's seals. Governor settings and the compressor intake filter also deserve same-session attention, since excessive cycling saturates fresh desiccant within months.

Field note. Desiccant is hygroscopic, so transport and storage discipline directly determines first-use performance. Keep the spare cartridge sealed in its foil wrap until the moment of fitting; a cartridge that months on a shelf unsealed arrives pre-loaded with ambient moisture and passes water to the tanks from day one. Store the complete dryer upright with port caps fitted so no swarf or condensate enters the M22 and M12 threads, avoid stacking that loads the purge valve housing, and in freezing yards let a unit that is colder than minus 20 degrees C acclimatise before bench testing, since trapped condensate ice can split internal passages.

Application context. Fitting preparation is simple but order-sensitive. You need a strap or chain wrench for the spin-on cartridge, an o-ring pick, thread sealant for metal ports, and caging bolts if spring-brake chambers will be released with air off. Depressurise every reservoir through its drain valve before opening any joint; residual pressure in a cartridge can eject it as it unscrews. Clean the gasket seat to bare metal, film the new o-ring lightly with system grease rather than fitting it dry, hand-run the cartridge until the gasket contacts, then tighten one further full turn. Finish with a soapy-water check on every port and the purge exhaust.

Field note. The published working window for this reference is roughly minus 40 to plus 65 degrees C, with a heater rated up to about 80 degrees C, but winter still generates most field complaints. A purge valve that freezes after its burst leaves the compressor unloaded continuously and audible as endless hissing; ice in the control line mimics a governor fault. Before the cold season, verify heater continuity and supply, drain all tanks daily, and replace any cartridge that has passed water. In sustained heat, watch compressor cut-out behaviour near the 8.5 plus or minus 0.2 bar setting and check that the safety valve (documented around 14 plus 3 bar) has not wept.

Application context. For fleet-volume buying, the decisive documents travel with the boxes, not in brochures. This reference is produced under IATF-16949 and ISO 9001 systems by several plants, so ask that each shipment carton carry the batch code and that per-batch records cover cut-out pressure, back-flow, leak testing, and desiccant lot traceability. Agree packaging in writing: neutral cartons, buyer-branded, or factory boxes, since mixed marking complicates customs and warranty. Retain sealed reference samples from accepted batches, record carton weights as a tamper check, and specify desiccant fill date on the label so old-stock cartridges are never received.

Deep dive. Version traps here are physical, not electronic. The same 3515010-368 / 9325000350 reference family appears both as a standalone dryer and as an integrated four-circuit air processing unit; the two look similar and interchange badly. Check the frame bracket pattern and overall height against the old unit. Port threads are M22 x 1.5 on main lines and M12 x 1.5 on control lines, with documented tightening limits near 53 Nm and 21 Nm respectively, so adapters are a poor substitute for correct ports. Confirm heater supply voltage against vehicle system voltage before ordering, and note that four-circuit versions list their internal cartridge and silencer separately.

Technical background. In daily operation, cartridge life on Dongfeng, Sinotruk, and Howo trucks depends less on mileage than on what the compressor delivers upstream. Oil carryover from a worn compressor coats the desiccant beads and blocks regeneration, so a 3515010-368 element can saturate long before its service interval. Drivers may notice water in air tanks, corrosion at brake valves, or a dryer that purges constantly. Replacing the cartridge alone solves only half the problem; checking compressor oil consumption and the unloader valve at the same time keeps the new desiccant working its full cycle.

Application context. Correct pairing of 3515010-368 with neighboring components determines how well the whole air circuit performs. The cartridge sits inside the dryer body, which in turn works with the pressure regulator or governor that switches charging and regeneration, and with the four-circuit protection valve feeding each brake circuit downstream. When planning maintenance, evaluate these parts as a set: a sticking purge valve or leaking governor makes the fresh desiccant cycle endlessly. Fleet buyers commonly stock the cartridge alongside governor repair kits and purge-valve seals, since these items wear together in the same service visit.

Deep dive. Desiccant cartridges are among the few brake parts that age on the shelf even unopened. The molecular sieve inside 3515010-368 starts absorbing moisture the moment packaging is breached, so stock must remain in factory-sealed foil or bags until installation. Store cartons in a dry, temperature-stable area rather than open docks or wash bays, and never return an opened cartridge to inventory. Mark receipt dates and rotate first-in, first-out; long-dwelling stock loses capacity before its first duty cycle. Purchasing teams should size orders around realistic consumption rather than tying up shelf life in oversized batches.

Technical background. Post-installation checks for 3515010-368 should follow a fixed sequence before the truck leaves the bay. Verify the cartridge seats squarely and its seal or O-ring is lightly lubricated to avoid nicks during tightening. With the engine running, watch system pressure build to cut-off, then listen for the purge valve exhausting a sharp burst of air; that exhaust confirms regeneration works. Soap-test all fittings and the dryer body for leaks, and re-check after a full duty cycle. Finally, drain the wet tank the next morning; any recurring water points to another fault, not the new cartridge.

Workshop note. The cartridge holds a bed of desiccant beads that adsorb water vapor from compressor discharge air and trap oil and particles, then regenerate during the purge cycle each time the governor unloads the compressor.

Application note. Published air dryer application guidance (Bendix) recommends cartridge replacement every 1 to 3 years or 100,000 to 300,000 miles depending on vocation, with monthly checks for moisture in the air brake system.

Workshop note. Classic failure evidence includes standing water in the wet tank, frozen air lines in winter, purge cycles every 30-60 seconds instead of every 2-3 minutes, and constant purge-valve leakage.

Application note. Compressed air quality for pneumatic circuits is graded under ISO 8573-1:2010, which assigns separate classes for solid particles, pressure dew point (for example -40 C at water Class 2) and total oil content.

Application note. Cartridge number 3515010-368 (also referenced as D149245) appears alongside D149246 and 3543N85P-010 in supplier cross-reference tables for Dongfeng and CNHTC/Sinotruk Howo truck air dryer assemblies.

The engineering notes above compile verified reference, material and application data for aftermarket air dryer and compatible air dryer.

Quality assurance

Inspection runs on an AQL sampling plan: incoming material, in-process checkpoints and a final release check are recorded on the batch sheet.

Warranty terms

12 Months limited warranty against manufacturing defects. Coverage applies to correctly installed units; keep the batch date code so any claim is processed against its inspection record. Cartridge, purge-valve and heater questions are answered by our team before dispatch.

The Vidishi Auto advantage

Air Dryer — Air Dryer. Supplied under Vidishi Auto with batch traceability and trade-grade packing; volume pricing and private-label options are available on request. Air dryers are supplied for commercial-vehicle air-brake system service programs.

Shipping & packaging

We ship worldwide to distributors and garages from China, Dongguan. Each Air Dryer is packed in a single-unit export carton. Dryers ship with ports capped and desiccant cartridge sealed in export cartons. Tracked air or sea freight is arranged per order volume.

Bulk quantities of air dryer supplier and air dryer bulk order ship in mixed containers from China, Dongguan.

Cross-reference numbers

Catalog numbering for this Air Dryer: the primary reference is 3515010-368. When a supplier catalog lists superseded or regional formats, match on the numeric core of the code rather than the prefix, then confirm the physical fit.

Catalog cross-references for air dryer catalog resolve to 3515010-368.

Frequently asked questions

Compliance disclaimer

Vidishi Auto is an independent supplier. This is an aftermarket compatible replacement, not a genuine OEM part. Brand names are trademarks of their respective owners and are used only to identify fitment.

Trade & wholesale support

Wholesale terms are quoted per market: volume breaks, mixed-SKU containers and private-label options are all handled by the trade desk. Port-thread and purge-cycle documentation is available on request.

Trade desk replies with quotation, MOQ and lead time in one business day.

Enquiries about wholesale air dryer and air dryer price receive quotations within one business day.

Heater & purge notes

Heater and purge behaviour decide dryer service life; the scope below is confirmed before dispatch.

• Configuration checks: the supplied configuration is confirmed against your order before dispatch.

Configuration and service notes for oem air dryer, refrigerated air dryer and conair infinitipro smoothwrap hair dryer are confirmed by our technical team before dispatch.

• Heater and purge-cycle behaviour follow the published listing.
• Governor and safety-valve scope are confirmed with the quotation.

Workshop teams comparing hair dryer concentrator nozzle, air dryer cross reference and what is a air dryer receive the configuration checklist with the quotation.

• Cartridge kits are quoted alongside the dryer for service programs.

Configuration and service notes for brake, air brake dryer cartridge and purging air dryer are confirmed by our technical team before dispatch.

Mounting & line notes

Dryers are matched to the air-brake line; the mounting scope below is confirmed before dispatch.

• Reference checks: the OE / reference number is matched against your old part before packing; supply covers Dongfeng, CNHTC, Sinotruk programs.

Application data for battery powered hair dryer, bendix air dryer and air dryer purge valve is confirmed against your specification before dispatch.

• Port thread and mounting orientation are matched to your line before dispatch.
• Line routing and bracket scope are confirmed with the quotation.

Engineering checks behind the best air dryer for dongfeng, jiefang and air dryer for truck supply are completed before packing.

• Units ship with ports capped for transit.

Application data for truck air dryer is confirmed against your specification before dispatch.