Bosch

Bosch Alternator Voltage Regulator 12V - 1 986 AE0 081

Price
R 1,260
10 in stock
Description

Product Details & Application

This Bosch alternator voltage regulator (1 986 AE0 081) is a 12 V replacement regulator used across a wide range of BMW and Mercedes-Benz alternator applications. It regulates alternator output voltage to protect the battery and vehicle electrical system during charging. Identification for this part is primarily by OEM reference cross-reference - match at least one supplied OE number to the regulator or alternator being replaced before ordering.

Key Details

SKU
1986AE0081
Component
Alternator Voltage Regulator
Brand
Bosch
Part MPN
1 986 AE0 081

Key Benefits

  • Genuine Bosch replacement regulator.
  • Extensive BMW and Bosch OEM cross-references supplied for pre-order verification.
  • Compact 12 V unit, 90 x 43.5 x 120 mm.

OEM Reference Numbers

  • Bosch: 1 986 AE0 081
  • F 00M A45 221
  • F 00M 145 880
  • F 00M 145 262
  • F 00M 145 285
  • F 00M 145 312
  • F 00M 145 655
  • 0 124 515 051
  • 0 124 515 098
  • 0 124 525 042
  • 0 124 525 045
  • 0 124 525 048
  • 0 124 525 059
  • 0 124 525 561
  • 0 399 604 014
  • 0 399 604 028
  • BMW: 12 31 7 523 059
  • 12 31 7 540 656
  • 12 31 7 505 922

Product Specifications

Specification Value
Voltage 12 V
Length 90 mm
Width 43.5 mm
Height 120 mm

Application & Compatibility

  • Fits a range of BMW and Mercedes-Benz alternator applications that use Bosch alternators cross-referencing the listed OE numbers.
  • Identification for this part is by OEM cross-reference - match the regulator or host alternator's OE number against the list above before ordering.
  • Confirm 12 V system voltage, physical dimensions, and terminal/connector orientation on the removed unit before fitting.

Installation / Use / Maintenance Tips

  • Disconnect the battery before removing or installing the regulator.
  • Inspect the slip rings and brush contact surfaces on the alternator before fitting the new regulator - worn slip rings will prematurely wear a new regulator.
  • Ensure the regulator and main B+ terminal connections are clean and secure.
  • After installation, verify charging voltage at idle and under load, and confirm no battery or charging warnings remain.

Common Questions

How do I confirm this is the right alternator voltage regulator?
Match one of the listed OEM reference numbers (Bosch or BMW) on the removed regulator or on the alternator itself to one of the cross-references above. Confirm the physical size and terminal layout before ordering.

What OEM part numbers does this cross-reference?
Cross-reference numbers are listed in the OEM Reference Numbers section above. Match at least one to your original part before ordering.

What brand is this part?
This listing is for Bosch alternator voltage regulator.

Warranty

Warranty

Our products are covered by a manufacturer’s warranty ranging from 6 months up to a lifetime, subject to the specific item. For detailed warranty information, kindly enquire with our support team.


Reviews

Reviews

Shipping

South Africa: 1-3 Days

Free Shipping Over R2000

Shipping From R60

International: 2-5 Days

513
41

Let customers speak for us

from 903 reviews
Got my order faster than expected, product is as

Got my order faster than expected, product is as described

Nadeem Mahomed
Gemini Gear - Synthetic 30T (GA88-14)
Quality

High quality, good mechanics

Malusi Nyaba
Blow F92 Fumed Blank/Pepper Gun (Semi Auto|15+1|9mm PAK)
Excellent quality Delivery times

Excellent quality
Delivery times as promised

Adam Manley
Blow CZ75 Black Blank/Pepper Gun (Semi Auto|17+1|9mm PAK)
Great replacement remote that is Nova compatible

Great replacement remote that is Nova compatible. Easy to program.

Morgan Collett
Sentry - 3 Button Code Hopping Transmitter 433 Nova Compatible Part No: SW107-20
Excellent service

Excellent service and price

Anonymous
Centurion Electronic Siren 15W 12-24VDC 110Db Piezo 45x40mm
Centurion D5 - no more official support.

Since the Centurion D5 isn't supported at all anymore by Centurion Systems, I bought this scarce item as a "backup" for the day I need it. (Along with refurbished D5 CP80 controller, from another supplier though.)
Much easier to replace just the gate sensor & harness - or CP80 - than de-wire / re-wire all connections than replacing the entire D5 gate motor!
Arrive perfectly & securely wrapped and courier service was very quick.
Thank you!

Anonymous
Centurion Gate Motor D5 Motor Origin Gate Reference Kit V2 Part No: GA25-1
The remote works perfectly

The remote works perfectly fine

Anonymous
Nesty Smart TV Remote
Great Quality Cup Handle – Stylish and Well Made

Excellent quality cup handle with a clean brushed satin nickel finish. It feels sturdy, was easy to install, and gives cabinets and drawers a modern, premium look. The 64mm size fit perfectly, and the finish looks great while helping to hide fingerprints. Very happy with the purchase and would definitely recommend it.

Luke Daniel
Cup Handle, Brushed Satin Nickel, 64mm
It is a great product

It is a great product.

Anonymous
Kocom Door Station - Plastic DS-2D

Quick and easy to order keep it up

Afriworld Removals
GUNMANSA
Great Fans

Great fans, they look fantastic and great for when you want to run quiet builds.

Tebogo Matsemela
Antec VISION PWM 120mm ARGB Infinity Mirror Case Fan 3 Pack Black
Great Service

I got the things I wanted from the store and pretty fast too. Great find, will being from them again on my birthday for a new case.

Tebogo Matsemela
GUNMANSA

Fantastic service! Order arrived faster than expected

Mike Boddington
GUNMANSA

Good communication and good service

Euan Vanderwalt
GUNMANSA
great

good services

Werner du Plessis
GUNMANSA

SOUTH AFRICA'S MODERN TACTICAL & TECH STORE

Welcome to GUNMANSA — where tactical culture, modern tech, self-defense gear, electronics, and premium lifestyle products come together in one powerful shopping experience.

WHY CUSTOMERS CHOOSE US

  • Premium curated products
  • Fast nationwide South African delivery
  • Secure online checkout
  • Trend-focused tactical & tech collections
  • Reliable customer support
  • Constantly updated product range
  • Trusted by thousands of customers nationwide

FAST SOUTH AFRICA-WIDE DELIVERY

We work hard to ensure your order arrives quickly, securely, and professionally packaged

DELIVERY INFORMATION

  • Nationwide shipping available
  • Tracking provided on dispatched orders
  • Secure packaging for sensitive products
  • Delivery times vary by region
  • Major cities usually deliver faster

DISCREET PACKAGING

Many products are shipped in discreet packaging for added privacy and professionalism.

CUSTOMER SUPPORT THAT HAS YOUR BACK

Your experience matters to us. We aim to provide reliable support before and after your purchase.

RETURNS

Returns may be accepted based on product condition, packaging condition, time since delivery, and product category restrictions.

NEED HELP?

Our support team can assist with product guidance, order updates, compatibility questions, technical support, and returns & exchanges.

IMPORTANT PRODUCT SAFETY INFORMATION

Certain products sold by GUNMANSA require responsible handling and adult supervision where applicable.

RESPONSIBLE USAGE

  • Understanding local laws
  • Safe handling practices
  • Proper storage
  • Responsible usage
  • Using products only for lawful purposes

KNOW BEFORE YOU BUY

Some products may require setup or accessories, have age-related restrictions, need batteries/gas/ammunition/accessories, or require maintenance.

SAFE. SECURE. VERIFIED.

Shop confidently knowing your information and payments are protected.

PAYMENT OPTIONS

  • Secure card payments
  • EFT payments
  • Online payment gateways
  • Mobile-friendly checkout options

SECURITY FEATURES

  • Encrypted checkout systems
  • Secure payment processing
  • Fraud protection measures
  • Trusted payment providers

QUICK ANSWERS

Q: How long does delivery take?

Delivery times vary depending on your location and product availability.

Q: Will I receive tracking?

Yes — tracking details are typically provided once orders are dispatched.

Q: Can I return a product?

Eligible returns may be accepted according to our returns policy.

Q: Do products come with warranty?

Some items include supplier/manufacturer warranty coverage.

Q: Do you offer nationwide shipping?

Yes — we ship across South Africa.