Sale

Weistec

Billet Idler Pulley Set for M156/M159 Engines

$649.00 $584.10 Save $64.90

SKU: 810089562265

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Weistec Billet Idler Pulleys offer a robust upgrade over the factory plastic idlers, which are a known issue on many naturally aspirated Mercedes-Benz vehicles with the M156 engine. These pulleys are precision CNC machined from 6061 aluminum and finished with a military-spec hard anodization for exceptional durability. Designed as a direct bolt-in replacement for the M156 and M159 engine families, this kit includes one 62mm grooved idler, one 76mm idler, one 54mm idler, and one 65mm idler. This makes them an ideal solution for both stock and highly modified applications. The fitment includes various Mercedes-Benz models equipped with the M156 engine, such as the 2007-2011 SL63 AMG (Roadster R230), 2007 R63 AMG (Base W251), and 2011 ML63 AMG (Base W164).

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.

Fitment

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Specifications

BrandWeistec
Part Number810089562265
CategoryEngines and Components

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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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Shipping

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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