Genuine BMW Motorsport for BMW E30 M3 S14 2.3L

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Genuine BMW Motorsport BMW Motorsport Seat Belt Pad Set
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW Motorsport - Corporate Logo
T#:341061
Part#: 72117742128
Ships in 10 Business Days
$ 139.99 USD
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$ 139.99 USD
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Enhance comfort and style in your BMW with the Seat Belt Shoulder Pad. Designed to make wearing your seat belt more comfortable, this pad adds a touch of Motorsports style to your car. Perfect for longer road trips or track days, it goes over your factory seat belt, providing an extra layer of cushioning. Explore the benefits of the Seat Belt Shoulder Pad:

  • Adds comfort and Motorsports style to your BMW.
  • Easily fits over the factory seat belt for quick installation.
  • Extra cushioning for a more comfortable experience on road trips or track days.
  • Dimensions of 5" in width and 12" in length for long-lasting comfort.
  • Enhances the overall driving experience for BMW enthusiasts.
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Genuine BMW Motorsport LOWER SECTION - E30 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW Motorsport - Corporate Logo
T#:348669
Part#: 13711312330
Special Order: No Guaranteed ETA
$ 227.86 USD
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$ 227.86 USD
Free Shipping
Motorsport Tow Strap
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW Motorsport - Corporate Logo
T#:209
Part#: TOW
Special Order: No Guaranteed ETA
$ 59.99 USD
Free Shipping on orders $49 and up
The lightest and simplest tow strap on the market! This is a factory BMW Motorsport part (BMW part number 51117749365), as used on many factory E46 racecars and our own E46 Touring Cars.

No Longer Available.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW Motorsport - Corporate Logo
T#:396369
Part#: 12311311449KT
Ships on Aug 5, 2026
$ 1,696.99 USD
Free Shipping on orders $49 and up

Group A racecars were the top of their class in both touring car and rally racing. Heavily modified and extremely fast these cars set out to demonstrate the best of what a manufacturer could do on the racetrack. It was the predecessor to the current DTM class racing and set a standard for many other divisions of motorsport to follow.  

One of the weaker points of the S14 engine, when speaking from a racing standpoint is the belt drive system. While fine for a street going car, a V-belt is not suitable for high RPM applications. On the track, most of your time will be spent in the higher rev range which puts extreme amounts of stress on the factory setup. BMW realised this and came up with a solution that involved doing away with the V belt system and using a 6 rib serpentine style instead.

Extremely resistant to slippage and failure this design holds up much better the abuse of track duty and won't leave you stranded and waiting for tow back to the pit. Additionally, this kit does not accommodate and a/c compressor and the alternator and waterpump are underdriven by way of slightly larger pulleys. Combined, this puts less of a load on the crankshaft which leads to more efficient power delivery to the ground. If you track you E30 M3, this is an essential upgrade and until now was extremely difficult to source. Do not skip this pivotal step in your engine build or overhaul and get a leg up on the competition the Group A way.
Please note this kit is special order and in non-returnable

Features:

  • Kit replaces all engine pulleys and crank damper
  • Includes 6 rib serpentine belt
  • Underdriven waterpump and alternator pulleys
  • Recommended for off road and racing use only 

This kit fits the following BMWs:
1986-1992 BMW M3 All 
 

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