Brake Disc OE Replacement Spare Parts 9434210312 for Mercedes Benz

Technical specifications

Compatibility & fitment guide

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 9434210312 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 mercedes-benz brake disc and brake disc fitment is listed above; confirm your VIN before ordering.

What this part is

Stocked for Mercedes-Benz and referenced by 9434210312.

Key features

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

Application & fitment

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

Technical insights

Application context. When its surface develops thickness variation, drivers feel pulsation through the pedal during sustained braking; deep scoring appears where lining debris or a seized pad slides across the face; and blue heat spots signal local overheating on long descents. Because a 40-tonne combination relies on this single contact surface, ignored scoring or cracking shortens pad life quickly and pushes stopping distances out before any dashboard warning appears.

Application context. INSTALLATION: Handle the 35 kg rotor with two people or a lifting aid, and keep the friction band free of oil and anti-corrosion wax. Clean the hub face and the 131 mm centering seat thoroughly, since rust scale between disc and hub is a classic cause of runout and repeat judder. Refit the 10 wheel studs in a cross pattern and tighten the nuts to the torque given in the vehicle manual, never by feel. After assembly, perform a controlled bedding run with moderate, spaced brake applications so the new pads transfer an even layer onto fresh cast iron.

Application context. MAINTENANCE: Measure the disc with a micrometer at several points around the wear band, noting the thinnest reading for each wheel position. The new thickness is 45 mm and the wear limit is 37 mm, so roughly 8 mm of usable friction material governs the service interval; any reading at or below 37 mm, or a corroded edge below the pad track, means replacement. Record measurements per axle side at every pad change, and inspect for cracks reaching the vent openings, since heavy-duty discs are scrapped on cracking regardless of remaining thickness.

Technical background. BUYING GUIDE: For this truck application, plain vented cast iron remains the rational choice: drilled or slotted truck discs offer no measurable advantage at 430 mm scale and can initiate cracks under repeated heavy braking. Compare offers on three points instead: the stated 45 mm new thickness and 37 mm limit, the quality of the anti-corrosion coating on non-friction surfaces, and whether the casting carries traceable markings. A bare uncoated disc may look identical, but flaking on the hat and stud bores makes future wheel-end service noticeably harder in winter-salted regions.

Deep dive. STANDARDS: Replacement brake discs for trucks and buses sold in ECE markets fall under Regulation No. 90, which covers replacement discs for M, N and O category vehicles. Buyers should check that the casting or packaging carries a valid R90 approval marking together with its approval number, and keep the documentation with fleet maintenance records. Where a supplier ships into markets outside the ECE scheme, ask which national standard the casting was produced and inspected to, and confirm Knorr-Bremse SB/SN7 system compatibility in writing before committing a fleet order.

Technical background. BUYER PROFILE: Typical buyers are heavy-truck workshops and fleet maintenance depots running Actros, Arocs, Antos, Axor, Atego and Econic vehicles, plus exporters supplying Mercedes-Benz O 500-series bus chassis operators. Because the same disc serves front and rear positions across these platforms, parts consolidators keep it as a stock line rather than a special order. Distributors serving mining, construction and long-haul fleets value the shared 430 mm geometry, the 10-stud mounting, and the clear 45/37 mm thickness data when planning service kits that pair discs with Knorr-Bremse pads.

Application context. This 430 mm vented truck rotor is listed without wheel bolts and without the hub, so a disc-brake service on an Actros, Antos, Axor, Atego or Econic axle typically also involves the ten wheel bolts, the hub and its bearing seals, and the long-life friction pads. Suppliers cross the number to TRW DF5025S, Bendix 569160B, Don CVD670 and Ferodo FCR323A, which helps fleets order pads from the same friction family. Because the dragging-type caliper slides on pins, technicians should clean and grease the guide pins, check the dust boots, and inspect the hub-mounted wear indicator wiring while the wheel is off.

Deep dive. At roughly 30 kg per vented rotor, this Mercedes truck disc is normally shipped in a carton inside a wooden crate or on a pallet, and each friction face is protected with rust-preventive oil and edge guards. Warehouses should store discs flat on racks, keep them indoors and away from chloride dust, and rotate stock so oil-coated units do not sit for years. Before installation, degrease the friction faces and the 10-hole, 168 mm pitch-circle mounting bore; any transit dents on the outer edge or a chipped hat area are grounds to quarantine the unit, since a bent hat disturbs runout on a highway axle.

Technical background. Work on this 430 x 45 mm rotor calls for a calibrated micrometer, because the wear limit of 37 mm is only 8 mm below the new thickness and truck discs cannot be skimmed arbitrarily. A torque wrench covering the wheel-bolt range, a dial indicator for lateral runout, and a depth gauge for pad thickness belong in the service kit. Since the disc is supplied without wheel bolts, the technician must clean the bolt threads and the hub face, tighten the ten bolts in a star pattern, and re-check torque after the first kilometers as fleet practice usually demands.

Deep dive. Winter highway salt attacks the exposed friction band of a dragging-type truck disc quickly, so fleets in Nordic or coastal regions inspect for pitting at every tire change and prefer coated hat areas plus regular corrosion removal. Summer alpine and construction routes push the 45 mm section through repeated long downhill applications; drivers should use retarders where fitted to keep thermal loading moderate. Autumn slurry raises stopping distances, and hot discs must never be quenched. Snowmelt freezing between the pad and the disc rim on a parked vehicle is another seasonal fault worth checking before departure.

Technical background. A first-article sample weighed and measured against the published geometry (430 mm outer diameter, about 143 mm height, 131 mm center bore, ten holes on a 168 mm circle) screens out casting drift. Agreeing in advance which quality documents ship with the order, rather than settling paperwork later, keeps cross-docking depots from blocking a fleet delivery.

Application context. The same disc is quoted for front and rear use on some axles, and the dragging-type caliper design differs from other Mercedes truck systems. Confirm the old part stamping and the SAMPA, TRW or Ferodo cross-reference before releasing an order.

Supply note. New disc thickness 45 mm with a 37 mm minimum wear limit; overall height approx. 143.5 mm; unit weight approx. 35 kg.

Application note. Catalogued against the Knorr-Bremse SB/SN7 air disc brake system (cross-listed with Ferodo reference FCR323A).

Supply note. Fits Mercedes-Benz Actros, Antos, Arocs, Axor, Atego and Econic trucks plus O 500-series bus chassis, front or rear axle position per catalog data.

Supply note. Related references are listed in the cross-reference block of the matching product page.

Application note. Outer diameter 430 mm, internally vented, 10 stud holes on a 168 mm bolt circle, hub centering diameter 131 mm.

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 buyers pick 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.

Logistics & packing

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.

Cross-reference numbers

Catalog numbering for this Brake Disc: the primary reference is 9434210312. 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 and brake disc guide resolve to 9434210312.

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.

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. 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 Mercedes-Benz applications.

Installation and service notes for brake disc replacement, 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 100% tested 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 100% tested 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.

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

• Bed-in guidance is supplied with the quotation on request.
• Discard-limit thickness data is confirmed against your workshop specification.

Workshop teams comparing brake disc pads bike, spare parts and 430mm brake disc receive the configuration checklist with the quotation.

• Pair replacement is recommended where the listing supplies a single disc.

Configuration and service notes for brake disc for mercedes-benz are confirmed by our technical team before dispatch.

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 Mercedes-Benz 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 100%, g3000 brake disc and brake disk supply are completed before packing.