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Details
| Specification | Value |
|---|---|
| Brand | BOSCH |
| MPN | 1986ae0120 |
OE/OEM numbers (12)
Search by this OE number to find compatible parts
- MERCEDES-BENZ—000 154 32 05
- MERCEDES-BENZ—000 154 37 05
- MERCEDES-BENZ—000 154 45 05
- IVECO—42533813
- IVECO—42534878
- IVECO—42553814
- CASE IH / IVECO—42559751
- RENAULT / RENAULT KOREA / RENAULT TRUCKS—50 01 850 026
- FIAT—77364088
- MERCEDES-BENZ—A 000 154 32 05
- MERCEDES-BENZ—A 000 154 37 05
- MERCEDES-BENZ—A 000 154 45 05
Where this part fits
Original-fit position for OE 77364088. The red ring marks where this part installs on the vehicle.

About this product
When alternator regulator performance matters, the BOSCH 1 986 AE0 120 delivers — built to the same dimensional and material standards as the original part it replaces. This part supersedes original equipment references: 000 154 32 05, 000 154 37 05, 000 154 45 05, 42533813 and 14 more. Matching these numbers confirms a like-for-like replacement with no loss of function. BOSCH 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.
About BOSCH
Robert Bosch GmbH, founded in 1886 in Stuttgart, Germany, is one of the world's largest automotive parts suppliers. Bosch specialises in braking systems, fuel injection, spark plugs, alternators, and electronic engine management. As an OE supplier to virtually every major car manufacturer, Bosch parts meet or exceed original equipment specifications. With over 130 years of engineering innovation, choosing Bosch means choosing proven reliability backed by extensive research and development.
Suitable cars
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.Equivalent products (6)
Alternator Regulator BOSCH 1 986 AE0 120 — compatible car models
| Manufacturer article number (MPN) | 1 986 AE0 120 |
|---|---|
| OE part numbers | 000 154 32 05, 000 154 37 05, 000 154 45 05, 42533813, 42534878, 42553814, 42559751, 50 01 850 026, 77364088, A 000 154 32 05, A 000 154 37 05, A 000 154 45 05 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
BOSCH 1986ae0120 . 1 986 AE0 120
- 1x Alternator Regulator
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 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 BOSCH 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: 000 154 32 05, 000 154 37 05, 000 154 45 05, 42533813, 42534878, 42553814, 42559751, 50 01 850 026 and 4 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Alternator Regulator cost?
This BOSCH Alternator Regulator is available for £19.99. Alternator Regulator prices vary depending on brand, specifications, and vehicle compatibility. BOSCH 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 000 154 32 05?
Yes, this BOSCH Alternator Regulator is a direct replacement for OE part number 000 154 32 05. 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 BOSCH 1 986 AE0 120 the same as the BOSCH 0 272 220 734?
No, while both are Alternator Regulator parts, they are different products. The BOSCH 1 986 AE0 120 has specific dimensions, material composition, and fitting requirements. The BOSCH 0 272 220 734 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.
