Engines and Components› Crankshafts and Components

JH Motorsports

Lightweight Crank Pulley

$363.74

SKU: JHM-06E105251F-179mm

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Non-Returnable Item
INSTALL DIFFICULTY
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Moderate — 2–4 hours

Overview

The JH Motorsports HD Overdrive Lightweight Crank Pulley is a performance upgrade designed for 3.0T FSI engines. It replaces the OEM crank pulley, reducing rotational mass by over 40%. The pulley weighs 5.05 pounds, compared to the OEM's 8.57 to 8.62 pounds.
Show original supplier description
The JH Motorsports HD Overdrive Lightweight Crank Pulley offers a significant performance upgrade by reducing the rotating mass of the engine. Weighing in at 5.05 pounds, it achieves over a 40% weight reduction compared to the OEM 3.0T crank pulley, which typically weighs between 8.57 to 8.62 pounds. This reduction in rotating mass can help free up horsepower and improve engine responsiveness. It is anodized black for a stealthy, stock appearance. The kit includes the JHM "HD" Overdrive Lightweight Crank Pulley and 8x 8mm x 1.25 Allen bolts. A 7PK1290 belt is required and recommended for use with this 179mm crank pulley, especially with stock or 56mm-57mm blower pulleys. For C6 A6 3.0T models, a 7PK1300 belt is recommended for easier installation. Installation involves aligning the offset bolt hole on the JHM pulley with the crank's offset hole, similar to the OEM pulley. All supplied bolts should be torqued to 20 ft-lbs in a star pattern, and the use of Loctite is recommended. This product replaces OEM part numbers 06E 105 251 E, 06E 105 251F, and their variations. It is crucial to note that THIS PRODUCT IS FOR RACING COMPETITION ONLY and is not legal for use in highway or street vehicles. Purchasers acknowledge that using this product on public streets or highways may violate federal and state emissions standards and agree to indemnify JH Motorsports for any liability arising from such use.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandJH Motorsports
Part NumberJHM-06E105251F-179mm
CategoryEngines and Components

Videos

JHM Audi C6 A6 stage 2 3.0T Runs 12.35 @111 mph on 93 Octane! - Dragy

JHM Audi C6 A6 stage 2 3.0T Runs 12.35 @111 mph on 93 Octane! - Dragy

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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