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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Connie
Pawtucket, US
★★★★★ 4
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Style: S-Level 2
It’s it’s an interactive toy if your dog isn’t lazy like my little boy. He likes to play, but he wants me to show him where everything is. It’s very doable because he’s rough and tough and it was much more reasonable than some of the other interactive toys..
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Reviewed in the United States on February 11, 2026
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William bouras
Phoenix, US
★★★★★ 5
Great thanking game for you and your dogs entertainment.
Style: S-Level 2
Great product it entertained my Chihuahua for 30 minutes. It really makes a high energy dog think and get focused.
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Reviewed in the United States on June 11, 2026
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AF Michael
Waukegan, US
★★★★★ 5
Fun dog product
Style: S-Level 2
When I first got this, I loaded up the compartments and set it down for the dog – excited and interested to see what she would do. She looked at it smelled it walked away. Disappointed – after a few hours – I put it under a table where she has a little rug, she likes to lay on. The next day I could hear the little doors on the toy rattling and she got every single little treat. And she loves it. And it’s fun when she decides she wants a little snack that she doesn’t have to ask or beg for she goes to her little toy and takes one of the treats out of the holes. It surprises me she never tries to chew on it. And I haven’t figured out how to make it squeak yet, nor has the dog. But it’s something all for her and she loves it. And it cleans up easily too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
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Leann
Phoenix, US
★★★★★ 5
Great dog toy
Style: S-Level 2
I buy this on repeat for my dog. It was fun when he was just a puppy, learning. He loves it so much that I can now put treats or kibble in it, and since there are such positive associations with it, it's a great way to get him to eat.
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Reviewed in the United States on June 9, 2026
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RottieMomCreations
West Palm Beach, US
★★★★★ 3
Not for powerful breeds like Rottweilers to last long, otherwise yes!
Style: L-Level 4
My 7 month old Rottie just loses patience and tries to eat the buttons. My 9 year old Rottie figures it out in 5 minutes. This would be perfect for a less powerful dog but not sure it will keep them busy for longer than 10 minutes. Mental stimulation is very important so I’d still recommend
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Reviewed in the United States on May 9, 2026

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