ARP - Gm Duramax Lb7-Lbz 6.6L Ss 12Pt (Street) Thermostat Housing Bolt Kit - 430-7403

The ARP 430-7403 stainless thermostat housing bolt kit is designed for GM Duramax 6.6L engines, providing corrosion-resistant fastening for reliable street-driven performance.

Key Features

• Stainless steel 12-point thermostat housing bolt kit


• Designed for Duramax LB7, LLY, and LBZ engines


• Street-performance oriented fastener design


• Corrosion-resistant stainless construction


• Precision-machined for consistent clamping

Compatibility & Installation Notes

• Fits GM Duramax 6.6L LB7, LLY, and LBZ engines


• Verify thermostat housing configuration before installation


• Torque fasteners per ARP specifications