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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.
| Category | Engine |
| Height | 6 |
| Labor Time (Hours) | 2.4 |
| Length | 4 |
| Peak HP | 11 @ 8400 RPM |
| Peak Torque (lb-ft) | 7 @ 8400 RPM |
| Product Type | Pulley Kit |
| Sub Category | Cylinder Block Components |
| Warning | California Proposition 65 |
| Weight | 2 |
| Width | 6 |
Note: 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
Eurosport Performance does not have live inventory. Although we aim shipping out not stocked products within 5 business days, supply constraints, import proceedures and product availability can cause additionnal delays. Please refer to the table below for more accurate details.
In stock - We have the item in stock at our warehouse and you can expect fulfillment within 24 hours.
Usually ships within 5-7 business days - We must import this product from our supplier or the manufacturer. Standard import proceedures take between 5-7 business days and you can expect fulfillment within 8 business days.
Back ordered - This product is out of stock at our warehouse with units in transit from our supplier. Fulfillment can vary.
If you wish to have a more accurate ETA, please send us a message at info@es-performance.com and we will respond within 24-48h.
12 Months
All products sold by Eurosport Performance are warrantied against manufacturing defects according to the manufacturer's warranty policy*. Warranty does not cover abuse, misuse, damages caused from improper manipulation, normal wear and tear, improper installation, or damages resulting from racing. Warranties only apply to the original owner. If a product is found defective, the customer will receive, at the discretion of Eurosport Performance, a replacement part at no extra cost. Eurosport Performance is not responsible for fitment inaccuracies regardings products sold outside of the United States or Canada. Please confirm compatibility prior to placing an order or contact us for more information.
* Conditions may apply. Please visit our Refund Policy or contact us at info@es-performance.com

