Air and Fuel› Fuel Pumps, Regulators and Components

Merchant Automotive

~(1 lbs. 6X6X4)~ Fuel Pressure Relief Valve Shim Kit LLY/LBZ/LMM 2004.5-2010

$22.66

SKU: M01D 10269

In Stock
In Stock
Ships by Jun 19
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Merchant Automotive Fuel Pressure Relief Valve Shim Kit is a direct-fit enhancement for 2004.5-2010 GM Duramax 6.6L LLY, LBZ, and LMM engines. By increasing the pressure needed to activate the valve, it helps maintain higher fuel rail pressure during full throttle driving and reduces fuel flow through the return system.

Fitment

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Specifications

BrandMerchant Automotive
Part NumberM01D 10269

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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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