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Details
| Specification | Value |
|---|---|
| Brand | ORIGINAL IMPERIUM |
| Width [mm] | 9 mm |
| Inner Diameter [mm] | 8.5 mm |
| Outer Diameter [mm] | 26 mm |
| Weight [g] | 18 g |
OE/OEM numbers (5)
Where this part fits
Original-fit position for OE 1204969. The red ring marks where this part installs on the vehicle.
About this product
The ORIGINAL IMPERIUM Mounting Alternator (31371) 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]: Stainless Steel mm, Material: 43, Inner Diameter [mm]: Carbon, Rubber mm, Outer Diameter [mm]: 26 mm, Weight [g]: Composite g. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit OPEL, VAUXHALL 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: 00934, 06544, 1204582, 1204892 and 11 more. Matching these numbers confirms a like-for-like replacement with no loss of function. ORIGINAL IMPERIUM is a recognised supplier of automotive replacement 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.
Suitable cars
Equivalent products (10)
Mounting Alternator ORIGINAL IMPERIUM 31371 — compatible car models
| Car models | OPEL: ASCONA B (81, 86, 87, 88), ASCONA C Hatchback (J82), ASCONA C (J82), ASTRA F CLASSIC Estate (T92), ASTRA F CLASSIC Hatchback (T92), ASTRA F CLASSIC Saloon (T92), ASTRA F Convertible (T92), ASTRA F Estate (T92), ASTRA F Estate Van (T92), ASTRA F Hatchback (T92) (+20 more) |
|---|---|
| Engines | 1.6 N; 1.3 N (F68, M68); 1.3 N (F11, M11, F69); 1.4 i (F35, M35); 1.4 i (M08, M68, F08, F68); 1.4 i (F19, M19); 1.4 Si; 1.4 (F35, M35); 1.4 i (F70); 1.4 (F08, M08, F68, M68); 1.4 (F19, M19); 1.0 (F08, M08, F68, M68); 1.0 (F08, W5L); 1.0 (F11, M11, F19, M19); 1.4 i (F08, W5L) (+11 more) |
| Year of manufacture | 1973-2009 |
| Manufacturer article number (MPN) | 31371 |
| OE part numbers | 1204582, 1204892, 1204969, 6204581, 90190757 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
ORIGINAL IMPERIUM 31371 . Inner Diameter [mm]: 8,5 mm. Material: 43. Outer Diameter [mm]: 26 mm. Weight [g]: 18 g. Width [mm]: 9 mm
- 1x Mounting Alternator
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 Mounting Alternator compatible with my car?
This Mounting Alternator fits OPEL, VAUXHALL 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 ORIGINAL IMPERIUM Mounting Alternator have?
This ORIGINAL IMPERIUM Mounting Alternator has the following specifications: Width [mm]: 9 mm; Material: 43; Inner Diameter [mm]: 8,5 mm; Outer Diameter [mm]: 26 mm; Weight [g]: 18 g. Check the full specifications table above for complete details.
What OE part numbers does this Mounting Alternator replace?
This Mounting Alternator replaces OE part numbers: 1204582, 1204892, 1204969, 6204581, 90190757. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Mounting Alternator cost?
This ORIGINAL IMPERIUM Mounting Alternator is available for £4.99. Mounting Alternator prices vary depending on brand, specifications, and vehicle compatibility. ORIGINAL IMPERIUM parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Mounting Alternator?
Regular inspection of your Mounting 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 Mounting 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 Mounting Alternator fitted by a professional mechanic.
Can I use this part as a replacement for OE 1204582?
Yes, this ORIGINAL IMPERIUM Mounting Alternator is a direct replacement for OE part number 1204582. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
