Engines and Components› Camshafts and Valvetrain

Weistec

M156 Valve Buckets

$1,169.00

SKU: 01-159-01096-2

Out of Stock
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Weistec Mercedes SLS Valve Buckets are a direct replacement for M156 valve buckets, designed to address accelerated wear in the valvetrain. These buckets feature an anti-friction coating and an improved hydraulic system to prevent issues like "bleed down" and excessive valve lash. Installation helps prevent premature valvetrain wear and reduces cold start tapping noises.
Show original supplier description
The Weistec Mercedes SLS Valve Buckets are engineered as a direct replacement for the M156 engine's stock valve buckets, addressing a known issue of accelerated valvetrain wear caused by repeated contact between soft and hard metals. These M159-design buckets are crucial for preventing premature wear, degrading engine performance, and potential engine failure. These valve buckets are designed to combat "bleed down," a common problem in M156 engines that leads to excessive valve lash, especially during cold starts. This condition is often audible as a loud tapping noise until the engine reaches operating temperature. The M159 valve buckets feature an advanced anti-friction coating to minimize wear on camshaft lobes and an improved hydraulic system that eliminates "bleed down." Installing these components ensures a quieter engine on cold starts and protects the valvetrain from accelerated wear. Key features include an anti-friction coating, an improved hydraulic system, and they are genuine Mercedes-Benz valve buckets. They are a direct replacement for M156 valve buckets, simplifying installation. The product comes with a CALIFORNIA WARNING regarding Cancer and Reproductive Harm. Note: It is important to verify fitment for your specific vehicle. UroTuning does not list all fitment vehicles for this item, and buyers are advised to confirm compatibility. Oversized products and direct ship products may be excluded from free shipping offers.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandWeistec
Part Number01-159-01096-2
CategoryEngines and Components
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

Buy with Confidence

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.

View Full Return Policy

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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy