Exterior Components Body Panels and Components

Bostech Fuel

Spider Fuel Injector Assembly**CORE CHARGE OF $75 APPLIES**

$248.29

SKU: B057 CP104-6

In Stock
In Stock
Ships by Jun 15
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Bostech Fuel Pressure Regulator DEC011667 is a direct replacement fuel pressure regulator designed for 2006-2010 GM 6.6L Duramax LBZ/LMM engines. It is crucial to maintain correct fuel pressure for engine efficiency, power, and longevity. A failing regulator can cause hard starts, surging at idle, and injector knocking or smoking. This regulator is found on the CP3 injection pump and can be swapped out with the pump mounted on the engine.

Fitment

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Specifications

BrandBostech Fuel
Part NumberB057 CP104-6

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Buy with Confidence

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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