23123647 OE Replacement Brake Disc Terbon BUS for Yutong

Technical 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 23123647 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 yutong brake disc and brake disc fitment is listed above; confirm your VIN before ordering.

What this part is

Stocked for Yutong and referenced by 23123647.

Key features

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 uses Iron and follows the same inspection checkpoints as the reference sample. Tolerances that affect installation are held to the drawing rather than adjusted on the bench.

• Iron construction for daily and workshop use.
• 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.

Application & fitment

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

Technical notes

Application context. SYMPTOMS: On a 12-metre coach such as the Yutong ZK6125 or ZK6127, the 23123647 vented disc absorbs the braking energy of a fully laden passenger vehicle, so its failure signs develop gradually: pedal pulsation that grows over weeks as thickness variation builds, a grinding note when trapped grit scores the face, and stopping power that fades on long mountain routes as the vented core loses its ability to shed heat. Fleets that postpone inspection until pads run metal-to-metal usually find deep radial grooves that force disc replacement alongside the pads.

Technical background. INSTALLATION: Before fitting, clean the hub mating face and the centering seat so the 430 mm disc sits square; an eccentric seat on a coach axle produces vibration felt through the whole body at speed. Torque the wheel nuts in stages in the pattern specified for the Meritor axle, and never lubricate the stud threads beyond the axle maker's instructions. Bed new pads and discs together with a series of moderate stops from around 50 km/h on a closed test area, avoiding sustained dragging that would overheat fresh cast iron.

Field note. MAINTENANCE: Check disc thickness with a micrometer at every scheduled brake inspection, taking readings at four or more points across the pad track and recording the thinnest one per wheel. Terbon quotes a service expectation of 30,000 to 50,000 km for this reference, but actual life depends on route profile, load and driver braking style, so measurements, not mileage, should trigger replacement. Look for heat checking and scoring as well as thickness, and replace discs in axle pairs when wear differs noticeably between wheels on the same hub group.

Field note. BUYING GUIDE: Buyers comparing replacement discs for Yutong coaches should weigh surface treatment and casting consistency rather than styling: plain vented cast iron is the standard for this class, and drilled or slotted faces bring crack risk under repeated coach loads. A coated non-friction surface slows rust on the hat and stud bores during storage and off-season lay-up. Verify that the supplier states the OE number 23123647, the 430 mm diameter and the vented construction explicitly, and ask for material certificates showing the grey iron grade rather than relying on listing photos.

Technical background. STANDARDS: Terbon produces this disc under an ISO/TS 16949 certified quality system and lists an E11 E-mark for the reference, which is the practical certification evidence buyers can request. For coaches operated in ECE-signatory markets, replacement discs are additionally subject to Regulation No. 90 type approval, so confirm the R90 marking on the casting when the vehicle is registered in such a market. Chinese-market Yutong parts such as the 23123647 are sourced against the original part number, so matching the OE reference remains the primary acceptance test.

Field note. BUYER PROFILE: The core buyers are coach operating companies, Yutong dealer workshops and spare parts exporters serving Africa, the Middle East, Southeast Asia and Latin America, where ZK6125, ZK6127 and ZK6129 fleets dominate intercity and tourism routes. Distributors group the disc with Meritor-axle consumables and often supply it alongside pads, adjusters and hub hardware as a wheel-end kit. Because the same reference is also catalogued for Zhongtong, Higer and Kinglong coaches, wholesalers treat it as a multi-brand bus line rather than a single-model part.

Application context. On a Yutong city or intercity coach, this wheel-end disc works alongside the friction pads, the caliper and its sliding guide pins, the hub bearing unit and the wheel nuts, so a planned disc change is the natural window to renew pads and grease or replace the pins. Depot practice is to replace discs and pads in axle sets to keep braking balance even. Workshop technicians should also inspect the hub oil seal for weeping, because oil on the friction face is a common cause of premature pad glazing and judder on high-mileage buses.

Field note. Bus discs are heavy castings, so Yutong replacement discs are usually packed in individual cartons with edge protectors and shipped on wooden pallets or in crates for multi-axle orders. Friction faces arrive with rust-preventive coating that must be washed off with brake cleaner before mounting. In the depot store, keep discs flat, off damp floors and away from de-icing salt stored nearby; a chipped rim or a damaged mounting face from forklift forks will show up later as pedal pulsation. Quarantine any unit with visible casting damage rather than fitting it to a passenger vehicle.

Field note. A coach brake service needs a thickness micrometer matched to the disc's stamped minimum dimension, a torque wrench for the wheel nuts and caliper bracket bolts, and a dial indicator to check runout on the mounted disc. Lifting a bus disc by hand is impractical, so plan a transmission jack or a second technician, plus wheel chocks and axle stands rated for the vehicle. Have brake cleaner, a wire brush and high-temperature slide-pin grease ready, and verify the air system is depressurized before any caliper work begins.

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

Deep dive. City coaches live a harsher thermal life than highway buses: repeated stops from traffic lights heat the disc, while long gaps let it cool, so autumn brake checks should measure thickness against the wear limit and look for heat crazing. In northern Chinese winters and other salted-road regions, corrosion creeps under the pad contact band and raises wear; frequent washdowns of the wheel arch help. Summer rainstorms leave standing water that shocks hot rotors, and dusty construction detours embed grit that scores the faces – all arguments for shorter inspection intervals in these seasons.

Deep dive. Fleet buyers ordering this Yutong disc in batches should request a documentation set with each shipment: casting batch numbers traceable to the supplier, material and hardness reports, dynamic balance or runout inspection records, and dimension sheets matching the stamped references on the actual goods. Agree the inspection standard and acceptance sampling plan in the contract, and photograph each pallet at receipt. Buses are certified vehicles, so keeping batch files in the maintenance records simplifies annual inspections and any warranty discussion. Define all paperwork requirements at ordering stage, not after the parts arrive.

Field note. The trap with coach discs is assuming one Yutong number covers the model range: ZK-series buses have used different disc diameters, bolt-circle patterns and hub-related designs across model years and axle suppliers, so a 23123647 order must be verified against the chassis plate, the axle manufacturer's stamping or the removed part itself. Some Yutong wheels carry hub-mounted discs without an integral hub, others differ in height or hole count, and left-hand and right-hand positions can look identical while carrying different references. Match the old casting number rather than the bus model name alone.

Workshop note. OE number 23123647 from the Yutong bus parts system; Terbon's replacement carries in-house model codes 3502-00336 and TB2017.

Application note. Grey cast iron vented disc for front or rear axle; Terbon listing states dimensions of 430 x 131 x 45 mm.

Application note. Catalogued for Yutong ZK6125, ZK6127 and ZK6129 coaches on Meritor axles; also referenced for Zhongtong, Higer and Kinglong coaches.

Application note. Produced under an ISO/TS 16949 certified quality system with an E11 E-mark listed for the reference; quoted service expectation 30,000-50,000 km.

Application note. Vented rotor construction chosen for heat dissipation under laden 12-metre coach duty, where solid discs overheat on mountain routes.

Technical notes for brake disc supplier, brake disc price and brake disc bulk order are compiled from catalogue references and pre-dispatch application checks.

After-sales & warranty

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.

Cross-reference numbers

Catalog numbering for this Brake Disc: the primary reference is 23123647. 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 23123647.

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.

Machining & runout checks

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

• Pre-dispatch checks: Iron construction is verified against the reference sample before packing; fitment covers Yutong 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 terbon wholesale bus 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 yutong bus brake disc 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 wholesale bus, g3000 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 Yutong 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 terbon wholesale, oe brake disc and brake disk supply are completed before packing.