The BMW S85 V10 is a masterpiece of motorsport engineering, but it requires meticulous care to stay at its peak. The factory rod bearing clearances are notoriously tight, leading to premature wear and the looming threat of catastrophic engine failure.
10X Entries For Our 25th Anniversary Sweepstakes!
Replacement Belt for Underdrive Pulley Kit (D560-0001). This belt attaches to the power steering and air conditioner.
Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4715163
Mfg#:
D561-0005
Ships in 5 Business Days
ON SALE!
SAVE 10%
$63.99
This product was last offered at the strikethrough price on 07-31-2026
Replacement Belt for Underdrive Pulley Kit (D560-0001). This belt drives the alternator and water pump.
Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4715161
Mfg#:
D561-0006
Ships in 5 Business Days
ON SALE!
SAVE 10%
$63.99
This product was last offered at the strikethrough price on 07-31-2026
Increase of +40 Horsepower, and +16 Torque, Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications!
Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.
Lifetime Replacement
