Brake Disc Sell 821358300 for MAN 2000

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 821358300 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 man brake disc and brake disc fitment is listed above; confirm your VIN before ordering.

Overview & context

Stocked for MAN and referenced by 821358300.

Feature highlights

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

Technical insights

Application context. On a city bus running the MAN Lions City duty cycle, a tired 430 mm disc shows up as long pedal travel with hard stops, vibration through the floor at regulated speeds, and rim dust from pads riding on a scored face. This rotor is the rotating friction member of the Knorr air disc brake: the caliper squeezes both faces, and the vented core dumps heat between stops. Because the disc also carries the wheel via ten studs, any crack at a bolt hole takes the wheel out of service immediately.

Field note. This is a 33 kg component, so plan a two-person lift or a transmission jack under the corner. The reference is listed without wheel bolts and without hub, so salvage the original studs and clean every thread before assembly. Seat the disc on the 203 mm centring spigot, check runout with a dial gauge at the friction radius, and torque the ten studs evenly in a star pattern. Inspect the Knorr SB/SN7 caliper slides and pads at the same time; a sticking slide will kill a new disc within weeks.

Technical background. Measure thickness across both friction faces at several points and retire the disc at the 37 mm minimum; at 45 mm new, that leaves only 4 mm each side, so wear checks belong in every brake inspection, not just annual tests. Look for heat cracking, a raised outer lip, and rust jacking under the pad plates. Record thickness per wheel to catch a dragging caliper early. Buses washed daily in winter should have the hats cleaned, because trapped salt attacks the unmachined surfaces first.

Application context. Not every 430×45 disc is equal. This reference carries a 235 mm bolt circle, 203.1 mm centring and a 131 mm height; a passenger-car style rotor with a similar diameter will not fit a KNORR SB/SN7 axle. Compare weight, about 33.4 kg here, as a proxy for casting section, and confirm the vented vane layout rather than a solid disc. For operators weighing heavy-duty against standard listings, the heavy pattern costs more in freight but survives the stop-start bus cycle with far fewer unscheduled removals.

Field note. Within the EU, replacement brake discs for M3-category buses fall under ECE R90-type approval requirements, so ask the supplier for the approval number on the packaging or datasheet. Production under an ISO 9001-certified quality system, with documented balancing and crack-detection steps, is the baseline many fleet buyers now write into tenders.

Deep dive. The natural buyer is a municipal or contract bus operator running Lions City, and coach companies with Cityliner or Spaceliner Neoplan bodies, plus the distributors who serve them. Purchases are usually made in axle sets with matching pads, ordered against the OE cross-number rather than the vehicle registration. Distributors value the wide cross-reference list, because one stocking line covers several fleets; operators value documented thickness data and packaging that identifies the reference at a glance in a busy depot store.

Deep dive. This 10-stud, 430 mm vented wheel-end disc rarely fails alone: brake pads for the same axle should always be renewed in pairs with it, and any axle with one scored disc usually has a sticking caliper or dragging guide pin worth investigating. While the wheel is off, check hub bearing play, replace the hub seal if grease weeps, and examine the dust shield for stone damage that directs grit onto the friction face. Fleet practice pairs driver-side and passenger-side discs from the same casting batch so hardness and wear behavior stay symmetric across the axle.

Application context. Each unit weighs about 33.4 kg, so storage and handling discipline is a safety issue, not housekeeping. Ship on pallets with edge protectors and interleaved spacers so friction faces never touch; a forklift tine clipping a hat edge can crack a vented casting outright. Two-person lifts or a disc trolley belong in the procedure, and single-unit boxes should state the gross weight. Store indoors on racking off the concrete floor, since floor moisture creeps into cardboard and rusts the centering seat, which then scores the hub shoulder at installation.

Deep dive. Wheel-end preparation starts with the hub, not the disc. Clean the centering seat of rust and burrs; on this part the 203.1 mm centering diameter carries the alignment, and a contaminated seat produces runout no amount of torquing removes. Check all ten studs for stretch and corrosion, align the disc on the PCD before setting the wheel, and torque in a crossed sequence with a calibrated wrench. The height of roughly 131 mm means the disc hangs well below the hub face; support it during handling so its own weight does not chip vane edges against a workbench.

Technical background. The same part number serves MAN F2000/TGA-era axles and Neoplan coach bodies such as Megashuttle, Megaliner, Spaceliner, Jetliner, Euroliner, and Skyliner, so duty cycles range from alpine coach descents to regional distribution. Long downhill routes demand hard use with high heat input, making the 37 mm minimum thickness a hard retirement floor rather than a suggestion. Winter salt attacks the hat-to-hub crevice and the stud holes, so fleets in Northern Europe should expect corrosion-driven replacement before friction wear. Desert operators face the opposite problem: sustained heat and dust accelerated by missing shields.

Application context. Bulk buyers should anchor acceptance in the casting, not the paperwork. The class standard is HT250 grey iron meeting the American G3000 designation, with hardness typically quoted at 180-240 HB; demand heat-number traceability on material certificates and sample every incoming batch for hardness and thickness. Reputable supply in this segment runs 100 percent dimension inspection, crack detection, and dynamic balance, so write those steps into the contract with the right to audit records per shipment. Check that minimum thickness is actually stamped on the hat, and reconcile box labels, etched codes, and packing lists as one chain.

Deep dive. Lookalike MAN-family discs are the classic trap here. The 81.50803 family runs 432 mm with a 208 mm centering diameter, while this part is 430 mm with a 203.1 mm centering; both carry ten holes on a 235 mm PCD, so the discs look interchangeable on a photo and are not on a hub. Minimum thickness also splits the family at 37 mm versus 35 mm siblings. Coach applications reuse truck numbers under Neoplan references, so buyers chasing a body-builder part number should cross to the axle part number before committing a fleet order.

Workshop note. Applications include MAN Lions City and Scania 4-series buses, plus Neoplan Cityliner, Jetliner, Megaliner, Spaceliner, Skyliner, Transliner and Megashuttle coaches.

Application note. Application and fitment data for this reference are confirmed against the stamped part number before dispatch.

Supply note. Dimensions: 430 mm outer diameter, 45 mm thickness, 37 mm minimum thickness, internally vented.

Supply note. Mounting data: 10 holes, 235 mm pitch circle, 203.1 mm centring diameter, 131 mm height, listed weight about 33.4 kg.

Workshop note. Brake system: Knorr SB / SN7 air disc brake; listed without wheel bolts and without hub.

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

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.

The Vidishi Auto advantage

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.

Catalog & cross-reference

Catalog numbering for this Brake Disc: the primary reference is 821358300. 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 821358300.

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.

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.

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

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

Wholesale teams answer brake disc bulk order enquiries 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: Steel construction is verified against the reference sample before packing; fitment covers MAN 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 high 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 scania 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.

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, high performance and g3000 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 t-drive brake rotor 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 MAN 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 hot sell, hengtong brake disc and brake disc for mercedes-benz supply are completed before packing.