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Details
| Specification | Value |
|---|---|
| Brand | STELLOX |
| MPN | 20-01509-sx |
| Weight [kg] | 0.39 kg |
OE numbers (1)
Search by this OE number to find compatible parts
- VOLVO—31285815
Where this part fits
Original-fit position for OE 31285815. The red ring marks where this part installs on the vehicle.
About this product
Sourced from STELLOX, this belt pulley alternator (20-01509-SX) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Weight [kg]: 0, 39 kg — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Verified to fit FORD, MAZDA, VOLVO 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: 219185, 24-94281, 30-1155, 31285815 and 12 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 (15)
Belt Pulley Alternator STELLOX 20-01509-SX — compatible car models
| Car models | FORD: B-MAX (JK), C-MAX (DM2), C-MAX II (DXA/CB7, DXA/CEU), ECOSPORT, FIESTA VI (CB1, CCN), FIESTA VI Van, FOCUS III, FOCUS III Saloon, FOCUS III Turnier, GALAXY II (WA6) (+13 more); MAZDA: 2 (DE, DH), 3 (BL), 3 Saloon (BL), 5 (CW); VOLVO: C30 (533), S40 II (544), S60 II (134) |
|---|---|
| Engines | 1.5 TDCi; 1.6 TDCi; 1.5 EcoBlue TDCi; 1.4 TDCi; 1.5 EcoBlue; 1.4 MZR-CD; 1.6 MZ-CD (BL14); 1.6 MZR CD (BL12); 1.6 CD; D2; DRIVe / D2 |
| Year of manufacture | 2003-2022 |
| Manufacturer article number (MPN) | 20-01509-SX |
| OE part numbers | 31285815 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
STELLOX 20-01509-sx . Weight [kg]: 0,39 kg
- 1x Belt Pulley Alternator
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 Belt Pulley Alternator compatible with my car?
This Belt Pulley Alternator fits FORD, MAZDA, VOLVO 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 Belt Pulley Alternator have?
This STELLOX Belt Pulley Alternator has the following specifications: Weight [kg]: 0,39 kg. Check the full specifications table above for complete details.
What OE part numbers does this Belt Pulley Alternator replace?
This Belt Pulley Alternator replaces OE part numbers: 31285815. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Belt Pulley Alternator cost?
Belt Pulley Alternator prices vary depending on brand, specifications, and vehicle compatibility. Check the current price above for this STELLOX Belt Pulley Alternator. All parts come with our 14-day money-back guarantee.
How do I know when to replace my Belt Pulley Alternator?
Regular inspection of your Belt Pulley Alternator 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 Pulley Alternator?
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 Pulley Alternator fitted by a professional mechanic.
Can I use this part as a replacement for OE 31285815?
Yes, this STELLOX Belt Pulley Alternator is a direct replacement for OE part number 31285815. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
