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Robertshaw 370 series substitute hi flow thermostat

$30.99

Robertshaw 370 series substitute hi flow thermostat

$30.99

Sadly Robertshaw no longer manufactures the 370 series.  The difference between the 370 Series and the 330 Series was the flange diameter.  Necessity is the mother of invention so we designed an interface ring that allows you to size up your 330 and get the benefit of high flow.

Fits Mopar, Some Ford, Lincoln, Mercury, AMC L6 Buick Nailhead

Why Robertshaw? Because we make a hi flow pump and its unique three port construction or "balanced sleeve" design equalizes the system pressures above and below the thermostat’s moving valve. Therefore the thermostat is pressure balanced and will respond to system temperatures only. No other thermostat does this.

Other Features of a Robert Shaw Thermostat:

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 sledge hammer-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 activates 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 manufactures 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 allows adequate coolant circulation.

5) Contoured strut. Making 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. The Power Pill At the heart of a Robertshaw thermostat is the power pill. Its job: to detect minute changes in the temperature of the coolant, and to quickly activate a precision-engineered piston that opens and closes the thermostat valve. Compared to the thermal elements in some thermostats, Robertshaw's Power Pill® has major advantages:

1) Rapid response. The Power Pill's piston is activated by a temperature-sensitive mixture of metallic powder and wax. Some thermostats use an all-wax charge, which responds slowly to temperature changes. Other brands mix copper powder with the wax for faster response, but the copper quickly separates from the wax. Robertshaw developed a process to maintain suspension of the copper powder in the wax, so the fast response doesn't deteriorate and the thermostat will not "stick-open" to cause the engine to run cool.

2) Reliable performance. Most manufacturers use a one-piece rubber diaphragm to seal the charge and drive the piston. If the rubber part ruptures, the thermostat fails. Robertshaw uses two separate parts: a diaphragm to seal the wax, and a stem seat or plug that drives the piston. Rubber material for each part is formulated especially to meet each part's unique requirements. Wear or damage to the stem seat still allows the thermostat to operate satisfactorily.

3) Precise performance. Every Robertshaw Power Pill is calibrated to bring the thermostat's start-to-open temperature within strict tolerances.

Make Model Year CID Liters
plymouth deluxe 1949-1950 218 3.6
dodge wayfarer 1950 230 3.8
cadillac series 61 1950-1951 331 5.4
cadillac series 60 fleetwood 1950-1964 331 5.4
cadillac series 62 1952-1962 331 5.4
buick roadmaster 1953-1956 322 5.3
buick super 1953-1956 322 5.3
cadillac deville 1953-1962 331 5.4
cadillac eldorado 1953-1962 331 5.4
buick skylark 1954 322 5.3
ford country sedan 1954 223 3.7
ford country sedan 1954 256 4.2
ford country squire 1954 223 3.7
ford country squire 1954 239 3.9
ford country squire 1954 256 4.2
ford crestline 1954 223 3.7
ford ranch wagon 1954 223 3.7
ford ranch wagon 1954 256 4.2
ford sunliner 1954 223 3.7
ford sunliner 1954 239 3.9
ford sunliner 1954 256 4.2
ford victoria 1954 223 3.7
ford victoria 1954 239 3.9
ford victoria 1954 256 4.2
mercury custom 1954 256 4.2
mercury monterey 1954 256 4.2
buick special 1954-1956 264 4.3
ford customline 1954-1956 239 3.9
ford mainline 1954-1956 239 3.9
ford f series 1954-1959 239 3.9
ford skyliner 1954-1959 239 3.9
ford courier sedan delivery 1954-1960 239 3.9
buick century 1955 322 5.3
ford country sedan 1955 223 3.7
ford country squire 1955 223 3.7
ford ranch wagon 1955 223 3.7
ford sunliner 1955 223 3.7
ford victoria 1955 223 3.7
mercury custom 1955 292 4.8
mercury monterey 1955 292 4.8
ford club 1955-1964 223 3.7
buick century 1956 322 5.3
ford country sedan 1956 223 3.7
ford country sedan 1956 272 4.5
ford country squire 1956 223 3.7
ford country squire 1956 272 4.5
ford fairlane 1956 223 3.7
ford fairlane 1956 272 4.5
ford park lane wagon 1956 223 3.7
ford ranch wagon 1956 223 3.7
ford ranch wagon 1956 272 4.5
ford sunliner 1956 223 3.7
ford sunliner 1956 272 4.5
ford thunderbird 1956 292 4.8
ford victoria 1956 223 3.7
ford victoria 1956 272 4.5
mercury custom 1956 312 5.1
mercury montclair 1956 312 5.1
ford country sedan 1957 223 3.7
ford country sedan 1957 272 4.5
ford country squire 1957 223 3.7
ford country squire 1957 272 4.5
ford fairlane 1957 223 3.7
ford fairlane 1957 272 4.5
ford ranch wagon 1957 223 3.7
ford ranch wagon 1957 272 4.5
ford ranchero 1957 223 3.7
ford sunliner 1957 223 3.7
ford sunliner 1957 272 4.5
ford thunderbird 1957 292 4.8
ford victoria 1957 223 3.7
ford victoria 1957 272 4.5
mercury commuter 1957 312 5.1
mercury monterey 1957 312 5.1
ford del rio wagon 1957-1958 223 3.7
mercury montclair 1957-1966 312 5.1
dodge coronet 1957-1968 230 3.8
dodge truck 1958 230 3.8
ford country sedan 1958 223 3.7
ford country squire 1958 223 3.7
ford custom 300 1958 292 4.8
ford fairlane 1958 223 3.7
ford ranch wagon 1958 223 3.7
ford ranchero 1958 223 3.7
ford ranchero 1958 292 4.8
ford sunliner 1958 223 3.7
ford thunderbird 1958 292 4.8
ford victoria 1958 223 3.7
cadillac series 70 fleetwood eldorado 1958-1962 365 6
dodge truck 1959 230 3.8
ford country sedan 1959 223 3.7
ford country sedan 1959 292 4.8
ford country squire 1959 223 3.7
ford country squire 1959 292 4.8
ford custom 300 1959 223 3.7
ford custom 300 1959 292 4.8
ford fairlane 1959 223 3.7
ford fairlane 1959 292 4.8
ford galaxie 1959 223 3.7
ford ranch wagon 1959 223 3.7
ford ranch wagon 1959 292 4.8
ford ranchero 1959 223 3.7
ford ranchero 1959 292 4.8
ford sunliner 1959 223 3.7
ford sunliner 1959 292 4.8
ford victoria 1959 223 3.7
ford victoria 1959 292 4.8
mercury colony park 1959 430 7
mercury park lane 1959 430 7
mercury voyager 1959 430 7
american motors rambler 1959-1960 196 3.2
buick invicta 1959-1963 401 6.6
buick electra 1959-1966 401 6.6
american motors american 1959-1968 196 3.2
american motors rebel 1959-1970 250 4.1
chrysler 300 1959-1971 413 6.8
chrysler imperial 1959-1975 413 6.8
chrysler town & country 1959-1979 413 6.8
chrysler new yorker 1959-1980 413 6.8
chrysler newport 1959-1980 413 6.8
ford country sedan 1960 223 3.7
ford country sedan 1960 292 4.8
ford country squire 1960 223 3.7
ford country squire 1960 292 4.8
ford f-250 pickup 1960 292 4.8
ford f-350 pickup 1960 292 4.8
ford fairlane 1960 223 3.7
ford fairlane 1960 292 4.8
ford galaxie 1960 223 3.7
ford galaxie 1960 292 4.8
ford ranch wagon 1960 223 3.7
ford ranch wagon 1960 292 4.8
ford sunliner 1960 223 3.7
ford sunliner 1960 292 4.8
ford victoria 1960 223 3.7
ford victoria 1960 292 4.8
buick lesabre 1960-1964 401 6.6
ford starliner 1960-1981 292 4.8
american motors super six 1961 196 3.2
ford country sedan 1961 223 3.7
ford country sedan 1961 292 4.8
ford country squire 1961 223 3.7
ford country squire 1961 292 4.8
ford f-100 pickup 1961 292 4.8
ford f-250 pickup 1961 292 4.8
ford f-350 pickup 1961 223 3.7
ford f-350 pickup 1961 292 4.8
ford fairlane 1961 223 3.7
ford fairlane 1961 292 4.8
ford galaxie 1961 223 3.7
ford galaxie 1961 292 4.8
ford ranch wagon 1961 223 3.7
ford ranch wagon 1961 292 4.8
ford sunliner 1961 223 3.7
ford sunliner 1961 292 4.8
ford victoria 1961 223 3.7
ford victoria 1961 292 4.8
mercury colony park 1961 292 4.8
mercury commuter 1961 223 3.7
mercury commuter 1961 352 5.8
mercury meteor 1961 292 4.8
mercury meteor 1961 352 5.8
mercury meteor 1961 390 6.4
mercury monterey 1961 292 4.8
mercury monterey 1961 352 5.8
american motors super six 1962 196 3.2
ford country sedan 1962 223 3.7
ford country sedan 1962 292 4.8
ford country squire 1962 223 3.7
ford country squire 1962 292 4.8
ford f-100 pickup 1962 223 3.7
ford f-100 pickup 1962 292 4.8
ford f-250 pickup 1962 223 3.7
ford f-250 pickup 1962 292 4.8
ford f-350 pickup 1962 223 3.7
ford f-350 pickup 1962 292 4.8
ford fairlane 1962 223 3.7
ford galaxie 1962 223 3.7
ford galaxie 1962 292 4.8
ford ranch wagon 1962 223 3.7
ford ranch wagon 1962 292 4.8
ford sunliner 1962 292 4.8
ford victoria 1962 223 3.7
ford victoria 1962 292 4.8
mercury colony park 1962 292 4.8
mercury colony park 1962 352 5.8
mercury commuter 1962 390 6.4
mercury monterey 1962 292 4.8
mercury monterey 1962 352 5.8
ford country sedan 1963 223 3.7
ford country sedan 1963 390 6.4
ford country squire 1963 223 3.7
ford country squire 1963 390 6.4
ford f-100 pickup 1963 223 3.7
ford f-100 pickup 1963 292 4.8
ford f-250 pickup 1963 223 3.7
ford f-250 pickup 1963 292 4.8
ford f-350 pickup 1963 223 3.7
ford f-350 pickup 1963 292 4.8
ford ford 300 1963 223 3.7
ford galaxie 1963 223 3.7
ford galaxie 1963 390 6.4
ford ranch wagon 1963 223 3.7
ford ranch wagon 1963 390 6.4
ford sunliner 1963 223 3.7
ford sunliner 1963 390 6.4
ford thunderbird 1963 390 6.4
ford thunderbird 1963 427 7
ford victoria 1963 223 3.7
mercury colony park 1963 390 6.4
mercury commuter 1963 390 6.4
mercury monterey 1963 390 6.4
plymouth savoy 1963-1964 318 5.2
buick riviera 1963-1966 401 6.6
buick wildcat 1963-1966 401 6.6
plymouth belvedere 1963-1970 318 5.2
ford country sedan 1964 200 3.3
ford country sedan 1964 223 3.7
ford country sedan 1964 390 6.4
ford country sedan 1964 427 7
ford country squire 1964 200 3.3
ford country squire 1964 223 3.7
ford country squire 1964 390 6.4
ford country squire 1964 427 7
ford custom 1964 223 3.7
ford custom 1964 390 6.4
ford f-100 pickup 1964 223 3.7
ford f-100 pickup 1964 292 4.8
ford f-250 pickup 1964 223 3.7
ford f-250 pickup 1964 292 4.8
ford f-350 pickup 1964 223 3.7
ford f-350 pickup 1964 292 4.8
ford fairlane 1964 390 6.4
ford falcon 1964 200 3.3
ford galaxie 1964 223 3.7
ford galaxie 1964 390 6.4
ford ranch wagon 1964 223 3.7
ford ranch wagon 1964 390 6.4
ford ranch wagon 1964 427 7
ford sunliner 1964 223 3.7
ford sunliner 1964 390 6.4
ford thunderbird 1964 390 6.4
ford thunderbird 1964 427 7
ford victoria 1964 223 3.7
ford victoria 1964 390 6.4
mercury colony park 1964 390 6.4
mercury commuter 1964 390 6.4
mercury monterey 1964 390 6.4
mercury marauder 1964-1966 390 6.4
buick skylark 1965 401 6.6
ford country sedan 1965 200 3.3
ford country sedan 1965 390 6.4
ford country sedan 1965 427 7
ford country squire 1965 200 3.3
ford country squire 1965 352 5.8
ford fairlane 1965 427 7
ford falcon 1965 200 3.3
ford falcon sedan delivery 1965 200 3.3
ford galaxie 1965 352 5.8
ford mustang 1965 200 3.3
ford ranch wagon 1965 352 5.8
ford ranch wagon 1965 390 6.4
ford ranchero 1965 200 3.3
ford thunderbird 1965 390 6.4
ford thunderbird 1965 427 7
mercury colony park 1965 390 6.4
mercury commuter 1965 390 6.4
mercury monterey 1965 390 6.4
mercury park lane 1965 390 6.4
buick gran sport 19651966 401 6.6
plymouth barracuda 1965-1974 273 4.5
plymouth satellite 1965-1974 318 5.2
plymouth fury 1965-1978 273 4.5
buick skylark 1966 401 6.6
ford country sedan 1966 200 3.3
ford country sedan 1966 352 5.8
ford country sedan 1966 390 6.4
ford country sedan 1966 427 7
ford country squire 1966 200 3.3
ford country squire 1966 352 5.8
ford country squire 1966 427 7
ford custom 1966 352 5.8
ford custom 1966 427 7
ford f-100 pickup 1966 352 5.8
ford f-350 pickup 1966 352 5.8
ford fairlane 1966 200 3.3
ford fairlane 1966 390 6.4
ford fairlane 1966 427 7
ford falcon 1966 200 3.3
ford galaxie 1966 352 5.8
ford galaxie 1966 427 7
ford galaxie 1966 428 7
ford mustang 1966 200 3.3
ford ranch wagon 1966 200 3.3
ford ranch wagon 1966 352 5.8
ford ranch wagon 1966 390 6.4
ford ranch wagon 1966 427 7
ford ranchero 1966 200 3.3
ford thunderbird 1966 390 6.4
ford thunderbird 1966 427 7
mercury breezeway 1966 390 6.4
mercury colony park 1966 390 6.4
mercury colony park 1966 410 6.7
mercury colony park 1966 427 7
mercury comet 1966 427 7
mercury commuter 1966 390 6.4
mercury commuter 1966 427 7
mercury mercury s-55 1966 390 6.4
mercury monterey 1966 390 6.4
mercury monterey 1966 410 6.7
mercury monterey 1966 427 7
mercury park lane 1966 390 6.4
mercury park lane 1966 427 7
dodge a100 1967 273 4.5
ford country sedan 1967 200 3.3
ford country sedan 1967 352 5.8
ford country squire 1967 200 3.3
ford country squire 1967 352 5.8
ford custom 1967 352 5.8
ford f-100 pickup 1967 352 5.8
ford f-250 pickup 1967 352 5.8
ford f-350 pickup 1967 352 5.8
ford fairlane 1967 200 3.3
ford falcon 1967 200 3.3
ford galaxie 1967 352 5.8
ford ltd 1967 352 5.8
ford mustang 1967 200 3.3
ford ranch wagon 1967 200 3.3
ford ranch wagon 1967 352 5.8
ford ranchero 1967 200 3.3
plymouth gtx 1967 440 7.2
plymouth vip 1967 440 7.2
dodge charger 1967-1968 273 4.5
dodge polara 1967-1973 426 7
dodge monaco 1967-1978 426 7
dodge d200 pickup 1968 383 6.3
dodge w300 pickup 1968 383 6.3
ford fairlane 1968 200 3.3
ford falcon 1968 200 3.3
ford mustang 1968 200 3.3
ford ranchero 1968 200 3.3
plymouth fury i 1968-1974 383 6.3
plymouth fury ii 1968-1974 383 6.3
plymouth fury iii 1968-1974 383 6.3
plymouth roadrunner 1968-1975 383 6.3
dodge dart 1968-1976 273 4.5
dodge w100 pickup 1968-1977 383 6.3
dodge d100 pickup 1968-1978 383 6.3
dodge d300 pickup 1968-1978 383 6.3
dodge w200 pickup 1969 383 6.3
dodge w300 pickup 1969 383 6.3
dodge coronet 1969-1976 383 6.3
dodge charger 1969-1978 383 6.3
dodge d200 pickup 1969-1978 383 6.3
dodge w200 pickup 1970 383 6.3
dodge challenger 1970-1974 318 5.2
plymouth cuda 1970-1974 340 5.6
plymouth gran fury 1972-1977 440 7.2
plymouth scamp 1972-1983 318 5.2
dodge m300 1974 440 7.2
dodge m350 1974 318 5.2
dodge w200 pickup 1974 440 7.2
plymouth trailduster 1974 440 7.2
dodge b100 van 1974-1978 360 5.9
dodge b200 van 1974-1978 440 7.2
dodge ramcharger 1974-1978 440 7.2
dodge w200 pickup 1975 360 5.9
dodge w300 pickup 1975 360 5.9
dodge royal monaco 1975-1977 360 5.9
dodge b300 van 1975-1978 318 5.2
dodge cb300 1975-1978 318 5.2
plymouth pb200 van 1975-1978 360 5.9
plymouth pb300 van 1975-1978 360 5.9
chrysler cordoba 1975-1979 318 5.2
dodge w200 pickup 1976 318 5.2
dodge w200 pickup 1976 360 5.9
dodge w200 pickup 1976 400 6.6
dodge w300 pickup 1976 318 5.2
dodge w300 pickup 1976 360 5.9
dodge w300 pickup 1976 400 6.6
plymouth trailduster 1976 318 5.2
plymouth trailduster 1976 360 5.9
dodge aspen 1976-1978 318 5.2
plymouth pb100 van 1976-1978 318 5.2
dodge w200 pickup 1977 318 5.2
dodge w200 pickup 1977 360 5.9
dodge w200 pickup 1977 400 6.6
dodge w300 pickup 1977 318 5.2
dodge w300 pickup 1977 360 5.9
dodge w300 pickup 1977 400 6.6
plymouth trailduster 1977 318 5.2
plymouth trailduster 1977 360 5.9
plymouth trailduster 1977 400 6.6
dodge d150 pickup 1977-1978 318 5.2
chrysler lebaron 1977-1979 318 5.2
dodge d450 pickup 1978 360 5.9
dodge diplomat 1978 318 5.2
dodge magnum 1978 318 5.2
dodge magnum 1978 400 6.6
dodge w150 pickup 1978 318 5.2
dodge w150 pickup 1978 360 5.9
dodge w150 pickup 1978 400 6.6
dodge w150 pickup 1978 440 7.2
dodge w200 pickup 1978 318 5.2
dodge w200 pickup 1978 360 5.9
dodge w200 pickup 1978 400 6.6
dodge w200 pickup 1978 440 7.2
dodge w300 pickup 1978 318 5.2
dodge w300 pickup 1978 360 5.9
dodge w300 pickup 1978 400 6.6
dodge w300 pickup 1978 440 7.2
plymouth trailduster 1978 318 5.2
plymouth trailduster 1978 360 5.9
plymouth trailduster 1978 400 6.6
chevrolet k10 pickup 1982-1986 379 6.2
chevrolet k10 suburban 1982-1986 379 6.2
chevrolet p20 van 1982-1989 379 6.2
chevrolet p30 van 1982-1993 379 6.2
gmc p25/p2500 van 1983 379 6.2
gmc p35/p3500 van 1983 379 6.2
chevrolet g20 van 1983-1993 379 6.2
chevrolet g30 van 1983-1993 379 6.2
gmc g25/g2500 van 1984 379 6.2
gmc g35/g3500 van 1984 379 6.2
gmc p25/p2500 van 1984 379 6.2
gmc p35/p3500 van 1984 379 6.2
gmc g25/g2500 van 1985 379 6.2
gmc g35/g3500 van 1985 379 6.2
gmc p25/p2500 van 1985 379 6.2
gmc p35/p3500 van 1985 379 6.2
gmc g25/g2500 van 1986 379 6.2
gmc g35/g3500 van 1986 379 6.2
gmc p25/p2500 van 1986 379 6.2
gmc p35/p3500 van 1986 379 6.2
chevrolet r10 pickup 1987 379 6.2
chevrolet v10 pickup 1987    
chevrolet v20 pickup 1987 379 6.2
chevrolet v20 suburban 1987    
gmc g25/g2500 van 1987 379 6.2
gmc g35/g3500 van 1987 379 6.2
gmc p25/p2500 van 1987 379 6.2
gmc p35/p3500 van 1987 379 6.2
gmc r2500 pickup 1987 379 6.2
gmc v2500 pickup 1987 379 6.2
chevrolet r10 suburban 1987-1988 379 6.2
chevrolet r20 pickup 1987-1988 379 6.2
chevrolet r20 suburban 1987-1988 379 6.2
chevrolet r30 pickup 1987-1988 379 6.2
chevrolet v10 suburban 1987-1988 379 6.2
chevrolet v30 pickup 1987-1988 379 6.2
chevrolet v20 suburban 1988 379 6.2
gmc g25/g2500 van 1988 379 6.2
gmc g35/g3500 van 1988 379 6.2
gmc p25/p2500 van 1988 379 6.2
gmc p35/p3500 van 1988 379 6.2
gmc r1500 suburban 1988 379 6.2
gmc r2500 pickup 1988 379 6.2
gmc r2500 suburban 1988 379 6.2
gmc r3500 pickup 1988 379 6.2
gmc v1500 suburban 1988 379 6.2
gmc v2500 suburban 1988 379 6.2
gmc v3500 pickup 1988 379 6.2
gmc g25/g2500 van 1989 379 6.2
gmc g35/g3500 van 1989 379 6.2
gmc r1500 suburban 1989 379 6.2
gmc r2500 pickup 1989 379 6.2
gmc r2500 suburban 1989 379 6.2
gmc r3500 pickup 1989 379 6.2
gmc v1500 suburban 1989 379 6.2
gmc v2500 suburban 1989 379 6.2
gmc v3500 pickup 1989 379 6.2
gmc g25/g2500 van 1990 379 6.2
gmc g35/g3500 van 1990 379 6.2
gmc r1500 suburban 1990 379 6.2
gmc r2500 suburban 1990 379 6.2
gmc r3500 pickup 1990 379 6.2
gmc v1500 suburban 1990 379 6.2
gmc v2500 suburban 1990 379 6.2
gmc v3500 pickup 1990 379 6.2
gmc g25/g2500 van 1991 379 6.2
gmc g35/g3500 van 1991 379 6.2
gmc r1500 suburban 1991 379 6.2
gmc r2500 suburban 1991 379 6.2
gmc r3500 pickup 1991 379 6.2
gmc v1500 suburban 1991 379 6.2
gmc v2500 suburban 1991 379 6.2
gmc v3500 pickup 1991 379 6.2
gmc g25/g2500 van 1992 379 6.2
gmc g35/g3500 van 1992 379 6.2
gmc g25/g2500 van 1993 379 6.2
gmc g35/g3500 van 1993 379 6.2