ARP 155-7402 Thermostat Housing Bolt Kit Hex Head

The ARP 155-7402 thermostat housing bolt kit provides a reliable solution for preventing water leaks at the thermostat housing. These premium-grade fasteners are precision-engineered to properly engage manifold threads and resist loosening under thermal cycling and vibration.

Key Features:

• Application-specific design ensures proper thread engagement and sealing
• Black oxide finished chrome moly steel construction for strength and corrosion resistance
• Hex head design for easy installation with standard tools
• Includes washers for complete installation
• Engineered to withstand thermal expansion and contraction cycles
• Superior clamping force compared to OEM hardware

ARP's thermostat housing bolts are manufactured to exacting tolerances and heat-treated for maximum durability. The black oxide finish provides corrosion protection while the precision threads ensure reliable sealing and prevent coolant leaks. These bolts are designed as a direct replacement for stock hardware, offering increased reliability for street, performance, and racing applications.