Alternator Overunner Pulley Bmw E87,E46 ,E90,E61 N42B20,N46B20,N52B30 (MAP-100797)
SKU: 59552525578

Alternator Overunner Pulley Bmw E87,E46 ,E90,E61 N42B20,N46B20,N52B30 (MAP-100797)

Sale price$289.76 Regular price$321.96
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Description

Alternator Overunner Pulley Bmw E87,E46 ,E90,E61 N42B20,N46B20,N52B30 (MAP-100797)Alternator Freewheel Clutch for BMW MINI MAP 100797 This alternator freewheel clutch is a direct replacement part for the vehicle applications listed below. 6 grooves, width 38,3 mm, diameter 49,0 17,0 mm. This part requires special tools for mounting observe service information. Confirm compatibility by matching OEM reference numbers, engine chassis details, and model year. VIN check is recommended where variants exist. Key Details SKU MAP 100797

Alternator Freewheel Clutch for BMW / MINI – MAP-100797

This alternator freewheel clutch is a direct replacement part for the vehicle applications listed below. 6 grooves, width 38,3 mm, diameter 49,0/17,0 mm. This part requires special tools for mounting — observe service information. Confirm compatibility by matching OEM reference numbers, engine/chassis details, and model year. VIN check is recommended where variants exist.

Key Details

SKU
MAP-100797
Component
Alternator freewheel clutch
OEM References
  • 12 31 7 516 105 (BMW)
  • 12 31 7 516 723 (BMW)
  • 12 31 7 516 724 (BMW)
  • 12 31 7 521 178 (BMW)
  • 12 31 7 521 382 (BMW)
  • 12 31 7 521 385 (BMW)
  • 12 31 7 521 491 (BMW)
  • 12 31 7 525 376 (BMW)
  • 12 31 7 532 271 (BMW)
  • 12 31 7 532 965 (BMW)
  • 12 31 7 532 967 (BMW)
  • 12 31 7 532 968 (BMW)
  • 12 31 7 516 105 (MINI)
  • 12 31 7 516 723 (MINI)
  • 12 31 7 516 724 (MINI)
  • 12 31 7 521 178 (MINI)
  • 12 31 7 521 382 (MINI)
  • 12 31 7 521 385 (MINI)
  • 12 31 7 521 491 (MINI)
  • 12 31 7 525 376 (MINI)
  • 12 31 7 532 271 (MINI)
  • 12 31 7 532 965 (MINI)
  • 12 31 7 532 967 (MINI)
  • 12 31 7 532 968 (MINI)
Primary Fitment
BMW 118i [E87] N46B20 (2005–2007)
Included
Alternator freewheel clutch
Specs
6 grooves; distance to first groove 11,6 mm; width 38,3 mm; diameter 49,0/17,0 mm; requires special tools for mounting

Key Benefits

  • OEM reference numbers listed for cross-checking before ordering
  • 6-groove pulley specification provided to match the alternator drive setup
  • Dimensions supplied to help confirm compatibility where variations exist
  • Service note: requires special tools for mounting (observe service information)

OEM Reference Numbers

  • BMW: 12 31 7 516 105; 12 31 7 516 723; 12 31 7 516 724; 12 31 7 521 178; 12 31 7 521 382; 12 31 7 521 385; 12 31 7 521 491; 12 31 7 525 376; 12 31 7 532 271; 12 31 7 532 965; 12 31 7 532 967; 12 31 7 532 968
  • MINI: 12 31 7 516 105; 12 31 7 516 723; 12 31 7 516 724; 12 31 7 521 178; 12 31 7 521 382; 12 31 7 521 385; 12 31 7 521 491; 12 31 7 525 376; 12 31 7 532 271; 12 31 7 532 965; 12 31 7 532 967; 12 31 7 532 968

Product Specifications

Specification Value
Number of grooves 6
Distance to first groove [mm] 11,6
Width [mm] 38,3 mm
Diameter 1 / 2 [mm] 49,0/17,0 mm
For manufacturer number F-238005.XX; F-230329.XX
Supplementary info Requires special tools for mounting; Observe service information

Vehicle Fitment

  • BMW – 118i [E87] N46B20 (2005–2007)
  • BMW – 120i [E87] N46B20 (2005–2007)
  • BMW – 120i [E87] N46B20B,C (2007–2011)
  • BMW – 130i [E87] N52B30 (2006–2011)
  • BMW – 318i [E46] N42B20 (2001–2005)
  • BMW – 318Ti [E46] N42B20 (2001–2005)
  • BMW – 320D [E46] M47D20 (2000–2005)
  • BMW – 320D [E90] M47D20 (2005–2007)
  • BMW – 320i [E90/E91] N46B20 (2005–2012)
  • BMW – 323i [E90] N52B25 (2005–2007)
  • BMW – 325i [E90] N52B25 (2005–2013)
  • BMW – 330i [E90] N52B30 (2005–2007)
  • BMW – 330i [E90/E91] N53B30A (2007–2013)
  • BMW – 523i [E60] N52B25 (2005–2010)
  • BMW – 523i [E60] N52B25A (2007–2010)
  • BMW – 525I [E60] N52B25 (2004–2010)
  • BMW – 530i [E60] N52B30 (2005–2007)
  • BMW – 530i [E60] N53B30 (2007–2010)
  • BMW – X1 sDRIVE 18i [E84] N46B20B (2010–2014)
  • BMW – X3 2.0i [E83] N46B20 (2005–2010)
  • BMW – Z4 2.0i [E85] N46B20 (2006–2008)

Fitment Notes

  • Always match by OEM reference number(s) and vehicle details before ordering.
  • Confirm exact fitment using your VIN, engine code, or chassis/platform details if multiple variants exist.
  • Trust signal: OEM references and fitment details are provided to support accurate cross-checking.
  • Service note: this part requires special tools for mounting — observe service information.
  • South Africa nationwide delivery available – contact us for fitment assistance.

Common Questions

Does this alternator freewheel clutch fit my BMW?
This part (MAP-100797) is listed for the fitments shown on this page. Confirm by matching OEM reference numbers and verifying VIN/engine/chassis where variants exist.

What OEM part numbers does this replace?
Cross-references include 12 31 7 516 105, 12 31 7 516 723, 12 31 7 516 724, 12 31 7 521 178, 12 31 7 525 376, and others listed above (BMW/MINI). Match at least one OEM reference to your original part before ordering.

Do I need special tools to install this?
Yes. The supplied service information notes that this part requires special tools for mounting. Installation should follow the manufacturer service procedure.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 59552525578

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jake
Natrona Heights, US
★★★★★ 4
Excellent quatity cheap.
Color: Silver
Pervect fit. Heavy duty.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026
S
Verified Purchase
S. Brown
Lexington, US
★★★★★ 3
Very tight fit on 74mm Mobile 1 Filters
Color: Silver
It claims to fit "some" 74mm Mobil 1 filters. It's a fraction too small, but will work if you "force" the tool on the filter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
S
Verified Purchase
Samuel James
Fort Morgan, US
★★★★★ 5
It’s Mobile One. The Brand Says it All!
Size: 5 Quart (Pack of 2), Style: Full Synthetic, Configuration: 0W-40
I buy Mobil One 0W-40 Full Synthetic European Blend Motor oil for my three older, higher mileage Mercedes SUVs. Considering all the vehicles are running well to this day speaks to the quality of their ongoing maintenance and Mobil One lubricants have always been part of their routine. Mobil One long ago became the favored brand of both European luxury car manufacturers and their customers. I’m no exception. The product comes in a convenient handled bottle that’s easy to pour without drips or spills. It’s built in fluid level gauge provides you with a real time window into the quantity of oil you pour and quantity remaining in its container. The oil is an excellent lubricant and it’s great for my motor, too. Price wise, it’s a premium offering from a premium brand. Even so, it’s worth every penny for helping keep my vehicles running as they were engineered. I have no complaints with Mobile One and I don’t have a reason to change. I’ll keep buying it until something better comes along.
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Reviewed in the United States on May 22, 2026
T
Verified Purchase
TEX
Chelsea, US
★★★★★ 5
Perfect for MB
Size: 5 Quart (Pack of 2), Style: Full Synthetic, Configuration: 0W-40
Mercedes certified - this oil is very nice, no need to drop loads on oil from MB or the other pricier brands, this stuff works very well.
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Reviewed in the United States on May 21, 2026
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Good
Pawtucket, US
★★★★★ 5
Great Product and price.
Size: 5 Quart, Style: Full Synthetic, Configuration: 0W-40
Great product and price.
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Reviewed in the United States on May 14, 2026

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