ARP - Gm Duramax Lmm 6.6L 12Pt Ss (Street) Thermostat Housing Bolt Kit - 430-7404

The ARP 430-7404 stainless thermostat housing bolt kit provides durable, corrosion-resistant fastening for GM Duramax LMM 6.6L engines in street applications.

Key Features

• Stainless steel 12-point thermostat housing bolt kit


• Designed specifically for Duramax LMM engines


• Street-performance focused hardware


• Resists corrosion in coolant environments


• Precision-machined for accurate fitment

Compatibility & Installation Notes

• Fits GM Duramax 6.6L LMM engines


• Confirm engine code prior to installation


• Install using ARP torque guidelines

Prop 65 Warning

WARNING: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information, visit www.P65Warnings.ca.gov.