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Details
| Specification | Value |
|---|---|
| Brand | TOPRAN |
| Width [mm] | 25 mm |
| Outer Diameter [mm] | 70 mm |
OE/OEM numbers (1)
Search by this OE number to find compatible parts
- BMW—1128 7 512 758
Where this part fits
Original-fit position for OE 11287512758. The red ring marks where this part installs on the vehicle.
About this product
The TOPRAN Belt Tensioner V Ribbed Belt (501 139) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: Width [mm]: 25 mm, Outer Diameter [mm]: 70 mm, Units/Pulleys: 35, Supplementary Article/Info 2: 560, Supplementary Article/Info 2: 178. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit BMW models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 001-10-23251, 01-97, 03.612, 03-803 and 134 more. Matching these numbers confirms a like-for-like replacement with no loss of function. TOPRAN 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 from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
About TOPRAN
TOPRAN, part of the Hans Thomsen Group headquartered in Hamburg, Germany, is a growing independent aftermarket brand focused on providing quality parts at accessible prices. TOPRAN offers a comprehensive range covering engine, cooling, electrical, braking, and body components for European vehicles. All TOPRAN products are manufactured to meet OE specifications and undergo quality testing before distribution. Combining German quality management with competitive pricing, TOPRAN is an excellent choice for cost-conscious motorists and workshops who do not want to compromise on part quality.
Suitable cars
Equivalent products (146)
Show all 146 OE numbers
Belt Tensioner V Ribbed Belt TOPRAN 501 139 — compatible car models
| Car models | BMW: 3 Compact (E46), 3 Convertible (E46), 3 Coupe (E46), 3 (E46), 3 Touring (E46), 5 (E39), 5 (E60), 5 Touring (E39), 5 Touring (E61), 7 (E65, E66, E67) (+3 more) |
|---|---|
| Engines | 325 ti; 320 Ci; 320 i; 520 i; 525 i; 730 i, Li; 2.5 i; 3.0 i; 2.2 i |
| Year of manufacture | 1995-2011 |
| Manufacturer article number (MPN) | 501 139 |
| OE part numbers | 1128 7 512 758 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
TOPRAN 501139 . Housing material: 1. Outer Diameter [mm]: 70 mm. Supplementary Article/Info 2: 178. Supplementary Article/Info 2: 560. Track rollers material: 6. Units/Pulleys: 35. Width [mm]: 25 mm
- 1x Belt Tensioner V Ribbed Belt
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- 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 Belt Tensioner V Ribbed Belt compatible with my car?
This Belt Tensioner V Ribbed Belt fits BMW 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 TOPRAN Belt Tensioner V Ribbed Belt have?
This TOPRAN Belt Tensioner V Ribbed Belt has the following specifications: Width [mm]: 25 mm; Outer Diameter [mm]: 70 mm; Units/Pulleys: 35; Supplementary Article/Info 2: 560; Supplementary Article/Info 2: 178; Track rollers material: 6. Check the full specifications table above for complete details.
What OE part numbers does this Belt Tensioner V Ribbed Belt replace?
This Belt Tensioner V Ribbed Belt replaces OE part numbers: 1128 7 512 758. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Belt Tensioner V Ribbed Belt cost?
This TOPRAN Belt Tensioner V Ribbed Belt is available for £37.99. Belt Tensioner V Ribbed Belt prices vary depending on brand, specifications, and vehicle compatibility. TOPRAN parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Belt Tensioner V Ribbed Belt?
Regular inspection of your Belt Tensioner V Ribbed Belt is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Belt Tensioner V Ribbed Belt?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Belt Tensioner V Ribbed Belt fitted by a professional mechanic.
Can I use this part as a replacement for OE 1128 7 512 758?
Yes, this TOPRAN Belt Tensioner V Ribbed Belt is a direct replacement for OE part number 1128 7 512 758. 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.
