Gates 32979 PowerGrip SB Thermoplastic Heat-Shrink Hose Clamp

The Gates 32979 PowerGrip SB Clamp is a heat-shrink thermoplastic hose clamp engineered to replace conventional metal clamps in vehicle cooling systems and fluid hose assemblies. Unlike standard worm-gear or spring clamps, this clamp uses a heat-sensitive thermoplastic material that shrinks tightly onto the hose and fitting when heat is applied, creating a secure, maintenance-free, leak-free seal every time.

Key Features:

• Heat-shrink thermoplastic design — shrinks uniformly onto the hose for a consistent, even clamping force with no over-tightening or under-tightening
• Fits hose O.D. 3" to 3-1/4" (76 mm to 83 mm) — SB79 size designation
• Conforms to out-of-round fittings — seals effectively even on irregular or non-circular hose barbs
• Compatible with stainless steel-braided hoses and stainless steel-braided hose sleeving
• Wide operating temperature range — rated for -40°F to +302°F (-40°C to +150°C)
• Installs with a standard heat gun — no special tools required; heat-shrinking is complete when the printed markings on the clamp turn gray
• Maintenance-free — no retightening required; retains dynamic tension over the life of the hose assembly
• Sold as a pack of 10 clamps

The Gates PowerGrip SB clamp is trusted by OEMs, fleet operators, and professional technicians as a superior alternative to traditional metal hose clamps on heater hose, coolant hose, and other fluid system connections. Its thermoplastic construction helps prevent antifreeze leaks and is designed for long-lasting, worry-free service in demanding engine environments.