- Shop with confidence: competitive prices, exclusive deals, and delivery perks.
- Need it quickly? We dispatch fast-moving parts daily. Check delivery options.
- Swap or return items within the standard return period with a simple process.
- Questions about fitment or orders? Our support team is ready to help.
Similar products
Customers also bought
Details
| Specification | Value |
|---|---|
| Brand | STELLOX |
| MPN | 03-40087-sx |
| Diameter [mm] | 70 mm |
| Width [mm] | 26 mm |
| Weight [kg] | 0,782 kg |
OE numbers (8)
Search by this OE number to find compatible parts
- BMW—11 28 1 407 520
- BMW—11 28 1 742 859
- BMW—11 28 1 742 859 KPL
- BMW—11 28 1 745 545 KPL
- BMW—11 28 1 745 547
- BMW—11 28 1 747 459 KPL
- BMW—1 407 520
- BMW—1742859
Where this part fits
Original-fit position for OE 11281407520.
About this product
The STELLOX Tensioner Pulley V Ribbed Belt (03-40087-SX) 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: Diameter [mm]: 70 mm, Width [mm]: 26 mm, Weight [kg]: 0, 782 kg. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit ALPINA, 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: 001-10-28150, 03-527, 08.19.206, 10-0038 and 25 more. Matching these numbers confirms a like-for-like replacement with no loss of function. STELLOX 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.
Suitable cars
Equivalent products (21)
Show all 21 OE numbers
Tensioner Pulley V Ribbed Belt STELLOX 03-40087-SX — compatible car models
| Car models | ALPINA: B10 (E34), B10 (E39), B10 Touring (E34), B10 Touring (E39), B8 Convertible (E36), B8 Coupe (E36), B8 (E36), B8 Touring (E36); BMW: 3 Coupe (E36), 5 (E39), 5 Touring (E39), 7 (E38), 8 (E31) |
|---|---|
| Engines | 4.6; 4.6 V8; 318 is; 535 i; 540 i; 735 i, iL; 840 Ci |
| Year of manufacture | 1988-2004 |
| Manufacturer article number (MPN) | 03-40087-SX |
| OE part numbers | 11 28 1 407 520, 11 28 1 742 859, 11 28 1 742 859 KPL, 11 28 1 745 545 KPL, 11 28 1 745 547, 11 28 1 747 459 KPL, 1 407 520, 1742859 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
STELLOX 03-40087-sx . Diameter [mm]: 70 mm. Weight [kg]: 0,782 kg. Width [mm]: 26 mm
- 1x Tensioner Pulley V Ribbed Belt
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Tracked standard shipping.
- Standard delivery: 5–9 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 Tensioner Pulley V Ribbed Belt compatible with my car?
This Tensioner Pulley V Ribbed Belt fits ALPINA, 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 STELLOX Tensioner Pulley V Ribbed Belt have?
This STELLOX Tensioner Pulley V Ribbed Belt has the following specifications: Diameter [mm]: 70 mm; Width [mm]: 26 mm; Weight [kg]: 0,782 kg. Check the full specifications table above for complete details.
What OE part numbers does this Tensioner Pulley V Ribbed Belt replace?
This Tensioner Pulley V Ribbed Belt replaces OE part numbers: 11 28 1 407 520, 11 28 1 742 859, 11 28 1 742 859 KPL, 11 28 1 745 545 KPL, 11 28 1 745 547, 11 28 1 747 459 KPL, 1 407 520, 1742859. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Tensioner Pulley V Ribbed Belt cost?
Tensioner Pulley V Ribbed Belt prices vary depending on brand, specifications, and vehicle compatibility. Check the current price above for this STELLOX Tensioner Pulley V Ribbed Belt. All parts come with our 14-day money-back guarantee.
How do I know when to replace my Tensioner Pulley V Ribbed Belt?
Regular inspection of your Tensioner Pulley 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 Tensioner Pulley 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 Tensioner Pulley V Ribbed Belt fitted by a professional mechanic.
Can I use this part as a replacement for OE 11 28 1 407 520?
Yes, this STELLOX Tensioner Pulley V Ribbed Belt is a direct replacement for OE part number 11 28 1 407 520. 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.
