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Details
| Specification | Value |
|---|---|
| Brand | MDR |
| MPN | mtb-5100635 |
| Category | drive belt |
| Length [mm] | 638 mm |
| Width [mm] | 10 mm |
| Outer Length [mm] | 648 mm |
OE numbers (16)
Search by this OE number to find compatible parts
- VW—068121039K
- AUDI—068121039Q
- MASSEY FERGUSON—1043441M1
- SUZUKI—17521-70D01
- CUMMINS—3040476
- LANCIA—4833709
- CITROËN / PEUGEOT—5750F2
- LANCIA—5889269
- JOHN DEERE—590113001
- FIAT / LANCIA—7302791
- RENAULT / RENAULT KOREA—7702051259
- CITROËN—95495339
- CITROËN—95495480
- LANCIA—98435955
- MAZDA—AZ2818381A
- JOHN DEERE—M1862T
Where this part fits
Original-fit position for OE AZ2818381A.
About this product
MDR drive belt (MTB-5100635) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Length [mm]: 638 mm, Width [mm]: Brass mm, Colour: Ceramic, Outer Length [mm]: 648 mm, Belt Material: 87 — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Compatible with ARO, AUDI, CITROËN, FIAT and 4 other makes vehicles; use the vehicle selector above to confirm exact fitment for your make, model, and engine variant. Fitment data is sourced from TecDoc, the authoritative European parts catalogue. This part supersedes original equipment references: 068121039K, 068121039Q, 1043441M1, 17521-70D01 and 13 more. Matching these numbers confirms a like-for-like replacement with no loss of function. MDR is a recognised supplier of automotive engine timing components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
drive belt buying guide
Why replace this part?
Drive belts transmit rotational power from the crankshaft to engine accessories including the alternator, power steering pump, air conditioning compressor, and water pump. On serpentine systems, a single belt drives all accessories; a failure leaves the vehicle without charging, cooling, or power steering simultaneously.
Signs you need a replacement
- Squealing noise, especially on cold start or when loads increase (A/C on)
- visible cracks, missing ribs, or glazing on the belt
- battery warning light
- power steering suddenly heavy
- belt debris visible in the engine bay
When to replace
Every 60,000–80,000 miles or 5 years, whichever comes first. Always replace the tensioner and idler pulleys at the same time — worn pulleys rapidly destroy a new belt.
Suitable cars
Equivalent products (1)
drive belt MDR MTB-5100635 — compatible car models
| Car models | ARO: 240-244; AUDI: 80 B3 Saloon (893, 894, 8A2), 90 B3 (893, 894, 8A2); CITROËN: GS, GS Break; FIAT: CROMA (154); LANCIA: THEMA (834), THEMA SW (834); NSU: 1000, 1200; OLTCIT: 11; VW: GOLF II (19E, 1G1), JETTA II (19E, 1G2, 165), TRANSPORTER T3 Bus (25), TRANSPORTER T3 Platform/Chassis (24), TRANSPORTER T3 Van (24, 25) |
|---|---|
| Engines | 3.1 D; 1.6 D; 1.6 TD; A 1.3; 2500 D; 2500 Turbo D (834D); 2500 Turbo DS (834AE); C; 1.1; 1.8 GTI 16V; 1.8 16V |
| Year of manufacture | 1963-2006 |
| Manufacturer article number (MPN) | MTB-5100635 |
| OE part numbers | 068121039K, 068121039Q, 1043441M1, 17521-70D01, 3040476, 4833709, 5750F2, 5889269, 590113001, 7302791, 7702051259, 95495339, 95495480, 98435955, AZ2818381A, M1862T |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
MDR mtb-5100635 drive belt. Belt Material: 87. Colour: 7. Length [mm]: 638 mm. Outer Length [mm]: 648 mm. Tensile Cord Material: 36. Width [mm]: 10 mm
- 1x drive belt
Shipping, returns, warranty
Free UK delivery on orders over £50.00. Tracked standard shipping.
- Standard delivery: 4–8 business days
- Order before 5pm — ships the next working day
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this drive belt compatible with my car?
This drive belt fits ARO, AUDI, CITROËN, FIAT, LANCIA and 3 more vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this MDR drive belt have?
This MDR drive belt has the following specifications: Length [mm]: 638 mm; Width [mm]: 10 mm; Colour: 7; Outer Length [mm]: 648 mm; Belt Material: 87; Tensile Cord Material: 36. Check the full specifications table above for complete details.
What OE part numbers does this drive belt replace?
This drive belt replaces OE part numbers: 068121039K, 068121039Q, 1043441M1, 17521-70D01, 3040476, 4833709, 5750F2, 5889269 and 8 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a drive belt cost?
Drive belt prices vary depending on brand, specifications, and vehicle compatibility. Check the current price above for this MDR drive belt. All parts come with our 14-day money-back guarantee.
How do I know when to replace my drive belt?
Signs include a squealing or chirping noise from the front of the engine (especially on startup), visible cracking or fraying of the belt, or accessories such as the alternator, power steering, or AC failing due to belt slip.
What tools do I need to replace a drive belt?
Tools needed: serpentine belt routing diagram (photograph or note the original routing before removal), belt tensioner tool or 3/8-inch drive breaker bar, socket set. Difficulty: Moderate DIY. Safety warning: The belt must follow the correct routing around all pulleys -- a misrouted belt will break immediately and simultaneously disable the alternator, power steering, and water pump.
Can I use this part as a replacement for OE 068121039K?
Yes, this MDR drive belt is a direct replacement for OE part number 068121039K. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
