Thermostat Housing Kit 2001-2005 Duramax LB7/LLY Gloss Black

Name: Thermostat Housing Kit 2001-2005 Duramax LB7/LLY Gloss Black
Brand: Wehrli
SKU: W005 100405-GB
Price: 474.33 USD
Availability: InStock

$489.00 $474.33 Save $14.67

SKU: W005 100405-GB

In Stock

Ships by Jun 12

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Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Description

This Wehrli Custom Fab kit replaces the factory thermostat housing and upper coolant pipe with upgraded billet aluminum and high-flow components, often featuring a gloss black finish. It is designed to enhance cooling system efficiency and provides a direct bolt-on replacement for 2001-2005 Chevrolet Silverado and GMC Sierra 2500HD/3500HD trucks with 6.6L LB7/LLY Duramax Diesel engines.

Fitment

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Specifications

Brand	Wehrli
Part Number	W005 100405-GB

Videos

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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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