OE Replacement Brake Disc Rotor Air 1387439 for DAF

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.
2. Match it to 1387439 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.

Cross-reference coverage for daf brake disc and brake disc fitment is listed above; confirm your VIN before ordering.

Product overview

Stocked for DAF and referenced by 1387439.

Why this unit sells

Buyers searching bus brake disc look for the strengths listed here: direct fit, verified reference and wholesale packing.

Build & materials

Built to the original equipment drawing, the Brake Disc 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 brake disc replacement and brake disc guide questions from workshop buyers.

Where it fits

Suitable for DAF. Brake Disc is stocked for these markets and model families so buyers can match demand without re-checking every listing.

Engineering notes

Technical background. Tractors and rigids on DAF CF and XF axles with the Knorr air disc brake warn of rotor trouble through pulsation felt in the pedal, grinding after pad wear exposes the backing plate, and uneven braking that pulls the trailer sideways on wet roads. The 432 mm vented disc is the friction face of the whole air-brake axle: pads clamp both sides, and the internal vanes carry heat away on long descents. Left below its 37 mm minimum, the casting overheats, cracks at the friction face and can seize the caliper.

Application context. Work on the axle with the air system fully exhausted and the wheels choked. The disc, roughly 24-25 kg, slides over the hub with a ten-stud, 230 mm bolt circle and seats on its centring bore; the Ferodo-equivalent listing specifies the Knorr SB/SN7 caliper, so check pad and carrier condition before refitting. Clean the hub face, verify runout with a dial gauge, and torque the wheel nuts to the vehicle figure in sequence. New discs and pads should be bedded gently on a test loop before the truck returns to line haul.

Application context. Set a routine thickness check at every brake inspection: 45 mm new against a 37 mm minimum means each millimetre counts on a tractor unit covering motorway kilometres. Use a micrometer across both faces, log the readings per axle, and compare sides to expose a dragging caliper. Inspect for heat check cracks, edge lips and rust under the pad plates after winter. When replacing, do both discs on the axle and fit new pads, since worn pad material glazes a fresh face and shortens its life noticeably.

Field note. This reference sits in a crowded aftermarket, with cross-numbers 1812563, 1542600, 1640561, 1726138, 1739542 and 1812582 pointing at the same 432×45 vented pattern. Compare listings on measured data: outer diameter, thickness, bolt circle, hub bore and Knorr brake-system fit, not just the OE number in the title. Heavy-duty castings list around 24-25 kg, so a noticeably lighter offer deserves suspicion. For mixed CF and XF fleets, confirm which axle each listing covers before consolidating stock.

Field note. Replacement discs carrying this reference are offered by brands such as BERAL, DT Spare Parts, FEBI BILSTEIN and Ferodo, all positioned as aftermarket equivalents rather than original parts, which is the correct legal framing in the EU. For M- and N-category vehicles, ECE R90 governs replacement brake discs, so a supplier quoting an approval number for this pattern is worth prioritising. Ask for the ISO 9001 certificate of the casting plant and for dimensional inspection reports; reputable truck-part sources publish these without prompting.

Technical background. Typical buyers are independent truck workshops servicing DAF CF65 to XF105 tractors, and parts distributors supplying the classic DAF parc that remains numerous in used-vehicle export markets. They order against the 1387439 cross-number, often with the fitting kit referenced alongside, and expect the disc to arrive dimensionally certified and pallet-packed. Fleet buyers focus on consistent wear rates across a batch, while distributors watch casting weight and finish, because both signal whether a source can hold quality across repeat production runs.

Application context. Treat this vented disc, its pads, and the caliper as one axle system. Aftermarket kits sold around the 1387439 reference commonly bundle pad sets, so replace friction material axle-wide whenever a disc is renewed; mixed pad age produces uneven contact and pulling. While the wheel is off a DAF XF95/XF105 or CF65/CF75/CF85, inspect hub bearing end-play, the hub seal, and the stud condition, since a weeping seal contaminates the new friction face within weeks. Caliper guide pin lubrication and a free-sliding check belong on the same job card, and any dragging caliper must be corrected or the new disc will repeat the old failure.

Application context. A single disc weighs roughly 25 kg, which is heavy enough to need two hands and light enough that crews underestimate it. Boxes should keep each casting isolated in a formed insert or polybag so vanes and hat edges cannot chip against neighbors in transit. Palletize with corner boards and stretch wrap, and keep pallet labels readable after rain since fleet yards often stage deliveries outdoors. In storage, avoid stacking more than the supplier's stated pallet height: the lower discs in an overloaded stack develop scoring where the friction faces bear the load, and a scored face is scrap at fitment.

Application context. Fitment on the hub decides whether the disc runs true. Clean the centering bore and hub shoulder to bright metal, seat the disc fully, and check lateral runout with a dial indicator at the friction face before the wheels go back. All ten studs should be drawn down in a crossed, calibrated-torque sequence; dry, rusty studs give false torque readings. Because the casting is vented, verify that no transit debris sits between the friction faces, and blow out the vanes. Retract the caliper pistons evenly so fresh pads meet both faces square on the first application.

Technical background. XF and CF tractors spend winters on salted European corridors, and the hat-to-hub crevice plus the ten stud bores are where corrosion starts; a disc can be corrosion-retired while half its wear allowance remains. On long alpine descents the 45 mm section works down toward the 37 mm minimum thickness, and fleets should log thickness at every tire change rather than waiting for warning noise. In hot-region depot storage, discs standing in humid sheds flash-rust on bare faces; light surface rust scrubs off in service, but pitting from months of storage does not, so rotate stock first-in, first-out.

Application context. For tender and bulk procurement, make documentation part of the deliverable. Specify HT250/G3000-class grey iron with heat-number traceability, a stated hardness band, and per-batch records for dimension inspection, crack detection, and dynamic balance, which are the checks serious truck-disc foundries run on every unit. Sample incoming lots for thickness, centering bore, bolt-hole pattern, and hardness, and keep retention samples per lot so disputes can be tested. Confirm the ECE R90 marking when stock moves into European aftermarket channels, and archive supplier certificates against lot numbers so a field failure can be traced back to its casting batch.

Application context. Application breadth is the fitment risk. The 1387439 reference covers DAF XF and CF heavy ranges, and aftermarket catalogs quote figures such as a 432 mm outer diameter, 45 mm thickness, 37 mm minimum, ten holes, and a centering bore near 217 mm, but suppliers do not agree on every figure. Lookalike heavy-truck discs share ten-stud patterns and 430-435 mm diameters with different centering diameters and heights. Before committing fleet stock, measure the hub: centering bore, overall height, and PCD measured on the vehicle outrank any catalog card, and the minimum-thickness stamp on the actual hat is the only legal wear limit.

Application note. Brake system: Knorr SB / SN7 air disc brake; typically listed for the front axle, with axle coverage varying by listing.

Supply note. Cross-references: 1812563, 1542600, 1640561, 1726138, 1739542, 1783346 and 1812582.

Workshop note. Applications: DAF XF95, XF105, CF65, CF75, CF85 and LF45/LF55 series trucks.

Application note. Dimensions: 432 mm outer diameter, 45 mm thickness, 37 mm minimum thickness, vented, height 45 mm.

Workshop note. Mounting: 10 holes on a 230 mm bolt circle, hub bore about 217 mm, listed weight roughly 24-25 kg.

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

Quality & testing

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. Disc thickness, minimum-thickness marking and runout questions are answered by our team before dispatch.

Why choose Vidishi Auto

Brake Disc — Brake Disc. Supplied under Vidishi Auto with batch traceability and trade-grade packing; volume pricing and private-label options are available on request. Discs are supplied for car, light-truck and commercial-vehicle brake programs in solid, vented, drilled and slotted patterns.

Shipping & packaging

We ship worldwide to distributors and garages from China, Dongguan. Each Brake Disc is packed in a single-unit export carton. Discs ship stacked with separator sheets in export cartons to protect the friction surface. Tracked air or sea freight is arranged per order volume.

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

Catalog & cross-reference

Catalog numbering for this Brake Disc: the primary reference is 1387439. 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 brake disc catalog resolve to 1387439.

Frequently asked questions

Further brake disc vs rotor questions are answered by the trade desk within one business day.

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.

B2B support

Wholesale terms are quoted per market: volume breaks, mixed-SKU containers and private-label options are all handled by the trade desk. Bolt-pattern, centre-bore and hub-height sheets are available on request.

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

Enquiries about wholesale brake disc and brake disc price receive quotations within one business day.

Machining & runout checks

Disc condition at fitment decides braking performance; the checks below are confirmed with every order.

• Pre-dispatch checks: the OE / reference number is matched against your old part before packing; fitment covers DAF applications.

Installation and service notes for oem brake disc, real carbon brake disc and sram centerline 160mm rotor center lock brake disc rotor are confirmed by our technical team before dispatch.

• Friction-face parallelism and runout are checked against the reference sample before packing.
• Minimum-thickness marking and discard-limit data are confirmed with the quotation on request.

Workshop teams comparing brake disc rotors, brake disc cross reference and high quality receive the pre-dispatch checklist with the quotation.

• Hub bore, bolt pattern and overall height are matched to your old disc before dispatch.

Installation and service notes for 430mm brake disc and t-drive brake rotor are confirmed by our technical team before dispatch.

Bed-in & service notes

Disc service life depends on the bed-in procedure; the notes below are supplied with every order.

• Configuration checks: the supplied configuration is confirmed against your order before dispatch.
• Bed-in guidance is supplied with the quotation on request.

Configuration and service notes for brake discs, brake disc resurfacing and brake disc pads bike are confirmed by our technical team before dispatch.

• Discard-limit thickness data is confirmed against your workshop specification.
• Pair replacement is recommended where the listing supplies a single disc.

Workshop teams comparing rotor air, daf air brake disc and brake disc for mercedes-benz receive the configuration checklist with the quotation.

Surface pattern options

Solid, vented, drilled and slotted patterns are stocked by reference; the options below are confirmed before dispatch.

• Reference checks: the OE / reference number is matched against your old part before packing; supply covers DAF programs.
• Surface pattern and vent design follow the published listing.

Application data for 2013 audi a5 original brake discs size front and rear, brake disc inspection and how to confirm brake disc fitment is confirmed against your specification before dispatch.

• Coating and anti-corrosion treatment scope is confirmed with the quotation.
• Friction faces are oil-film protected before export packing.

Engineering checks behind the old model, daf truck rotor and brake disk supply are completed before packing.