(1953-55 1st Series) Radiator Cap 4#

Part #
78-406
In stock
Price:
$6.31
OE Type; Cap (Open System) - 4 psi (SAE Range 3-5 psi) Unlike conventional thermostats that continually open and close to achieve the proper operating temperature and flood the engine with coolant, the Stant SuperStat® thermostat has a unique v-notch, ...Read More Below
Vehicle Fits:
  • 1953-1954 Chevy Truck
  • 1953-1954 GMC Truck
  • 1955 First Series Chevy Truck
  • 1955 First Series GMC Truck

Product Description

OE Type; Cap (Open System) - 4 psi (SAE Range 3-5 psi)

Unlike conventional thermostats that continually open and close to achieve the proper operating temperature and flood the engine with coolant, the Stant SuperStat® thermostat has a unique v-notch, non-linear design that reduces cycling by precisely metering the amount of coolant needed to maintain proper operating temperature.

The v-notch provides a small initial flow. As the engine heats up, the v-notch gradually opens wider, metering coolant into the system until the desired engine temperature is reached. Features:

  • High flow venturi for maximum cooling capacity during high temperature.
  • High load operation and employs a unique Weir Valve® for precise flow metering during cold weather.
  • Light load operation to ensure stable temperature control under all conditions.
  • High strength stainless steel flange is burnished to a bright finish for additional stress relief and added corrosion resistance.
  • Thicker than most competitor thermostats and our standard reverse poppet thermostat for added strength and longer life.
  • Larger piston that delivers 1-1/2 times the power of our standard thermostat and almost 2-1/2 times as much power as the competition for enhanced durability and longer life.
  • Opening spring is designed with a load that is 50% stronger than our standard reverse poppet thermostat. This heavy-duty spring helps return the thermostat to the closed position and prevent cold running, even under the most adverse conditions.

Cap Depth (in)1.16
Coolant Recovery SystemOptional System
Filler Neck Depth (in)0.75
Filler Neck Inside Diameter (in)1.61
Filler Neck Outside Diameter (in)2.13
OE Comparison RatingOE Quality
Pressure Rating (psi)4
SAE Pressure Range (psi)3-5
Shell Diameter (in)3.13
TypeStandard Cap

Product Details

More Information
SKU 78-406
Additional Fitment Information 53-55 1st Series

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