Dinan Underdrive Pulley Kit - 2008 BMW M3


Part # D560-0003
1 Review

Dinan Underdrive Pulley Kit - 2008 BMW M3

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MSRP $399.00
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Dinan's underdrive pulley is designed to increase power (11 horsepower 8400 RPM and 7 lb-ft torque 8400 RPM on a stock car) by reducing parasitic drag on the engine from spinning the alternator, water pump and AC compressor. This is accomplished by slowing down the speed of these accessory drives that rob power from your engine. Dinan has done extensive hot weather testing so you can be assured that your engine is safe. The Dinan underdrive pulley is made of aircraft quality 6061 alloy. is anodized black and does not modify your harmonic damper as some underdrive pulley kits do which can be harmful to your engine. This product is backed by our industry-leading 4 year/50,000 mile warranty so you can rest assured that you are purchasing the best quality product for your BMW. Note: BMW changed the belt configuration from a single-sided power steering and AC belt to a double-sided belt for M3's that were produced after May 2008. Please check with your dealer to find the correct Dinan part number below.


  • All accessories are underdriven to decrease drag on the engine (water pump & alternator underdriven by 16%; AC & power steering underdriven by 19%).
  • Lightweight billet aluminum crankshaft pulley, black anodized and engraved.
  • Includes shorter belts.
Brand Dinan
Dinan Point Value1
Discount Percentage26-50%
Emission Code6
Labor Time (Hours)2.4
Peak HP11 @ 8400 RPM
Peak Torque (lb-ft)7 @ 8400 RPM
Product TypePulley Kit
Part NumberD560-0003
D560-0003 for 2008-5/08 production date with single-sided power steering & AC belt D560-0004 for 6/08-2013 production date with double-sided power steering & AC belt

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