Engines and Components› Cylinder Heads and Components

ARP

ARP GM Duramax LB7-LBZ 6.6L 12pt (street) thermostat housing bolt kit

$214.18

SKU: A00M 130-7403

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The ARP 130-7403 is a thermostat housing bolt kit designed for GM Duramax LB7 through LBZ 6.6L engines. Constructed from high-strength stainless steel, these bolts offer corrosion resistance and consistent clamping force. The 12-point head design provides improved tool access, making installation smoother, especially in tight engine compartments. This kit is a direct fit with no modifications required.

Fitment

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Specifications

BrandARP
Part NumberA00M 130-7403

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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