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HPS 1-1/4' (32mm) Blue High Temperature 3-ply Reinforced Silicone Coolant Cap Bypass Heater, 1-3/4' Length, 350F Max. Temp, 4mm Wall Thickness (RSCC-125-BLUE)

4.8 (2) Write Review
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$26.17

$ 10 .99 $10.99

In Stock

1.Color:Blue


About this item

  • Made of High Temperature 3-ply Polyester Reinforced Silicone. Maximum Temperature Rating: 350 deg. F (177 deg. C).
  • Ideal for heavy duty pressure connections and provides excellent resistance for high temperature applications
  • Compatible for use with coolant, water, air, turbocharger bypass valve ports, vacuum ports, throttle body water ports, heater cores, and much more.
  • Inside Diameter: 1-1/4" (32mm). Overall Length: 1-3/4"
  • HPS reinforced silicone caps are not compatible with fuel, oil, or any petroleum-based products.


The HPS Performance 1-1/4" high temperature reinforced Blue silicone cap is designed specifically to be installed on your cooling system. Vacuum caps have no reinforcement and are intended for vacuum and very little pressure. The HPS Reinforced Silicone Caps are manufactured just like our reinforced silicone radiator hoses. With 3 layers of polyester webbing for reinforcement, you can be sure that HPS Reinforced Silicone Caps will withstand the high temperatures and pressures of your cooling system for years to come. HPS Reinforced Silicone Caps are compatible for use with coolant, water, air, turbocharger bypass valve ports, vacuum ports, throttle body water ports, heater cores, and much more. Temperature Range: - 65 deg. F to + 350 deg. F (177 deg. C). Reinforced Layer: 3-ply Polyester. Inside Diameter: 1-1/4" (32mm). Color: Blue. Wall Thickness: 4mm. Inside Length: 1-3/16". Overall Length: 1-3/4". UV and ozone resistant. Remark: HPS reinforced silicone caps are not compatible with fuel, oil, or any petroleum-based products.


steve mccain
Reviewed in the United States on August 23, 2021
I purchased these for the exhaust manifolds on my V-8 boat engine. The manifolds are water cooled and have provisions to drain them and these work great for capping them. OEM stuff is overpriced and subpar with the quality and eye appeal of these.
coffeebus0103
Reviewed in the United States on August 22, 2021
I used this on a 30 gallon freshwater tank for my conversion Sprinter to plug one of the extra ports that was not needed. 15000 miles later still feels and looks like new. Oh and the best thing it doesn't leak.