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Details
| Specification | Value |
|---|---|
| Brand | HERTH+BUSS ELPARTS |
OE numbers (4)
Search by this OE number to find compatible parts
- BMW—12 31 7 788 827
- BMW—12 31 7 804 137
- BMW—12 31 7 836 490
- BMW—12 31 8 510 092
Where this part fits
Original-fit position for OE 12318510092. The red ring marks where this part installs on the vehicle.
About this product
HERTH+BUSS ELPARTS Alternator Regulator (35000031) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. This part supersedes original equipment references: 052.000.545, 12 31 7 788 827, 12 31 7 804 137, 12 31 7 836 490 and 19 more. Matching these numbers confirms a like-for-like replacement with no loss of function. HERTH+BUSS ELPARTS 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 with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
Suitable cars
Fitment not confirmed for this part
We could not confirm which vehicles this part fits — check before buying.Equivalent products (19)
Alternator Regulator HERTH+BUSS ELPARTS 35000031 — compatible car models
| Manufacturer article number (MPN) | 35000031 |
|---|---|
| OE part numbers | 12 31 7 788 827, 12 31 7 804 137, 12 31 7 836 490, 12 31 8 510 092 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
HERTH+BUSS ELPARTS 35000031
- 1x Alternator Regulator
Shipping, returns, warranty
Free UK delivery on orders over £50.00. Tracked standard shipping.
- Standard delivery: 4–8 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 Alternator Regulator compatible with my car?
Use the vehicle selector at the top of the page to check compatibility. Enter your car's make, model, and engine — we'll confirm whether this Alternator Regulator fits. All fitment data is verified through TecDoc.
What specifications does this HERTH+BUSS ELPARTS Alternator Regulator have?
The package includes the Alternator Regulator as described in the specifications above. Check the "What's included" section for a full list of components. If mounting hardware or accessories are required, they will be listed separately.
What OE part numbers does this Alternator Regulator replace?
This Alternator Regulator replaces OE part numbers: 12 31 7 788 827, 12 31 7 804 137, 12 31 7 836 490, 12 31 8 510 092. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Alternator Regulator cost?
This HERTH+BUSS ELPARTS Alternator Regulator is available for £55.99. Alternator Regulator prices vary depending on brand, specifications, and vehicle compatibility. HERTH+BUSS ELPARTS parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Alternator Regulator?
Regular inspection of your Alternator Regulator 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 Alternator Regulator?
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 Alternator Regulator fitted by a professional mechanic.
Can I use this part as a replacement for OE 12 31 7 788 827?
Yes, this HERTH+BUSS ELPARTS Alternator Regulator is a direct replacement for OE part number 12 31 7 788 827. 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 HERTH+BUSS ELPARTS 35000031 the same as the HERTH+BUSS ELPARTS 35000044?
No, while both are Alternator Regulator parts, they are different products. The HERTH+BUSS ELPARTS 35000031 has specific dimensions, material composition, and fitting requirements. The HERTH+BUSS ELPARTS 35000044 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.
