New
1966-96 Ford Bronco
1973-97 Ford F100, F150, F250, F350
302, 351W, 429, 460 Engine
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JBG, AND FLOWKOOLER, RECOMMEND AND SELL ROBERTSHAW THERMOSTATS!
For 302, 351W, 429, 460 Engines only
Back in 1916, Robertshaw made the first thermostat for the first American cars. And today, Robertshaw is still the first, giving you this exclusive combination of quality features:
1) Stress-free construction. Robertshaw makes the thermostat's strut assembly from brass, not stainless steel, because brass can be bradded to the housing with heat instead of sledgehammer-like stress. This technique permits two brads per strut. Other manufacturers forcefully attach the struts to the housing with intense, metal-weakening pressure on the struts, binding each strut in only one spot.
2) The Power Pill. This is the heart of a Robertshaw thermostat. It detects minute changes in the temperature of the coolant, and quickly acctivates a precision-engineered stem or piston to open and close the thermostat valve.
3) One-piece bypass poppet. With other thermostats, the bypass valve stem is welded on. The weld tends to fail under stress. To eliminate this problem, Robertshaw manufacturers the entire copper cup and bypass stem from a single piece of metal.
4) Short-stroke piston. In conventional thermostats, the piston must make a large stroke to open the thermostat far enough for adequate coolant flow. But the long stroke compromises durability. Robertshaw engineers achieved a shorter stroke with a uniquely-designed flange and poppet. This design increases the longevity of the thermostat, yet still allow adequate coolant circulation.
5) Contoured strut. Makeing the strut assembly from brass instead of steel provides another benefit: brass, being more malleable than steel, can be precisely formed to maximize coolant flow.
6) Uniform quality. Robertshaw builds all thermostats to OEM standards--so your replacement thermostat is identical to those used in new Fords, Chryslers, and other cars.
SPECIFICATIONS:
Overall height 1 9/16" (approximately)
Outside diameter of Body 1 9/16" (approximately)
Overall Outside Diameter 2 1/8"
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