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Details
| Specification | Value |
|---|---|
| Brand | OPTIBELT |
| MPN | avx10x965 |
| Category | drive belt |
| Length [mm] | 965 mm |
| Width [mm] | 10 mm |
OE numbers (53)
Search by this OE number to find compatible parts
- VWโ021903109A
- VW / VW-PORSCHEโ021903137A
- AUDIโ035145271J
- VWโ044903137
- VWโ044903137L
- VWโ068903137AA
- VWโ068903137AS
- SEAT / VWโ068903137D
- VWโ068903137T
- BMWโ11511706710
- BMWโ11511711091
- NISSANโ11720H7200
- BMWโ12311254885
- BMWโ12311288475
- BMWโ1254885
- OPEL / VAUXHALLโ1340718
- BMWโ1706710
- BMWโ17067104
- BMWโ1706711
- BMWโ17067114
- LANCIAโ2156019
- HYUNDAIโ2521132000
- HONDAโ31110671003
- HONDAโ31110PA6661
- HONDAโ31110PA6662
- HONDAโ31110PB1003
- FIATโ4025787
- FIATโ4306860
- PEUGEOTโ575014
- FIATโ5992345
- VAUXHALLโ6352976
- TALBOTโ71266250
- VAUXHALLโ8825967
- VAUXHALLโ90169079
- OPEL / VAUXHALLโ90410387
- TOYOTAโ9091602098
- TOYOTAโ9091602123
- TALBOTโ9226505
- TALBOTโ9226506
- SAABโ9341314
- VOLVOโ960285
- VOLVOโ966911
- DAIHATSUโ9932100961
- DAIHATSUโ9932100966
- DAIHATSUโ9932150956
- DAIHATSUโ9932150966
- TOYOTAโ9933260975
- DAIHATSUโ9952150959
- DAIHATSUโ9952150961
- CHRYSLERโB0015386
- CHRYSLERโB0015387
- MAZDAโE35618381X
- MITSUBISHIโMD025523
Where this part fits
Original-fit position for OE 11511706710. The red ring marks where this part installs on the vehicle.
About this product
OPTIBELT drive belt (AVX 10 X 965) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications โ Length [mm]: 965 mm, Width [mm]: Brass mm, Belts: Steel, Belts: Aluminium โ are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Compatible with AUDI, BMW, HONDA, PORSCHE and 1 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: 021903109A, 021903137A, 035145271J, 044903137 and 55 more. Matching these numbers confirms a like-for-like replacement with no loss of function. OPTIBELT 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 โ 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 โ 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 โ 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 60,000โ80,000 miles or 5 years, whichever comes first. Always replace the tensioner and idler pulleys at the same time โ worn pulleys rapidly destroy a new belt.
Suitable cars
Equivalent products (7)
drive belt OPTIBELT AVX 10 X 965 โ compatible car models
| Car models | AUDI: 100 C2 Avant (435, 436), 100 C2 Saloon (431, 433, 434), 80 B2 Saloon (811, 813, 814, 819, 853); BMW: 3 Convertible (E30), 3 (E30), 3 Touring (E30), 5 (E28), Z1 Roadster; HONDA: QUINTET (SU); PORSCHE: 914; VW: 411,412, 412 Variant, GOLF II (19E, 1G1), JETTA II (19E, 1G2, 165), PASSAT B3/B4 (3A2, 35I), PASSAT B3/B4 Variant (3A5, 35I), TRANSPORTER T2 Bus (22, 23, 24), TRANSPORTER T2 Van (21, 23), TRANSPORTER T4 Bus (70B, 70C, 7DB, 7DK, 70J, 70K, 7DC, 7DJ) |
|---|---|
| Engines | 1.9; 2.2; 320 i; 520 i; 2.5; 1.6 EX; 1.7; 1.6 D; 1.6 TD; 1.8 |
| Year of manufacture | 1967-2004 |
| Manufacturer article number (MPN) | AVX 10 X 965 |
| OE part numbers | 021903109A, 021903137A, 035145271J, 044903137, 044903137L, 068903137AA, 068903137AS, 068903137D, 068903137T, 11511706710, 11511711091, 11720H7200, 12311254885, 12311288475, 1254885, 1340718, 1706710, 17067104, 1706711, 17067114 (+33 more) |
Compatibility check
Loading vehicle dataโฆ
Please wait while we load vehicle compatibility information.Description and what's included
OPTIBELT avx10x965 Optibelt MARATHON X. Belts: 1. Belts: 2. Length [mm]: 965 mm. Width [mm]: 10 mm
- 1x drive belt
Shipping, returns, warranty
Free UK delivery on orders over ยฃ50.00. Tracked standard shipping.
- Standard delivery: 4โ8 business days
- Order before 5pm โ 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 AUDI, BMW, HONDA, PORSCHE, VW vehicles. Use the vehicle selector at the top of the page to check exact compatibility โ enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this OPTIBELT drive belt have?
This OPTIBELT drive belt has the following specifications: Length [mm]: 965 mm; Width [mm]: 10 mm; Belts: 1; Belts: 2. 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: 021903109A, 021903137A, 035145271J, 044903137, 044903137L, 068903137AA, 068903137AS, 068903137D and 45 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 OPTIBELT 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 021903109A?
Yes, this OPTIBELT drive belt is a direct replacement for OE part number 021903109A. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Is the OPTIBELT AVX 10 X 965 the same as the OPTIBELT 13 X 1180?
No, while both are drive belt parts, they are different products. The OPTIBELT AVX 10 X 965 has Length [mm]: 965 mm, Width [mm]: 10 mm, Belts: 1. The OPTIBELT 13 X 1180 may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
