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Robertshaw 330 series thermostat

$22.99

Robertshaw 330 series thermostat

$22.99

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 CID Ltr Year
AM GENERAL 395 6.5 1996-2000
AMERICAN MOTORS 196 3.2 1961-1970
AMERICAN MOTORS 232 3.8 1965-1979
AMERICAN MOTORS 258 4.2 1976-1988
AMERICAN MOTORS 304 5.0 1970-1979
AMERICAN MOTORS 343 5.6 1967-1969
AMERICAN MOTORS 360 5.9 1970-1978
AMERICAN MOTORS 390 6.4 1969-1970
AMERICAN MOTORS 401 6.6 1971-1974
BUICK 173 2.8 1980-1986
BUICK 181 3.0 1982-1985
BUICK 196 3.2 1978-1979
BUICK 231 3.8 1978-1985
BUICK 250 4.1 1968-1975
BUICK 252 4.1 1980-1984
BUICK 260 4.3 1975-1984
BUICK 265 4.3 1980-1981
BUICK 267 4.4 1981-1982
BUICK 300 4.9 1964-1967
BUICK 301 4.9 1977-1980
BUICK 305 5.0 1977-1991
BUICK 307 5.0 1980-1990
BUICK 340 5.6 1966-1967
BUICK 350 5.7 1972-1995
BUICK 400 6.6 1968-1969
BUICK 403 6.6 1977-1979
BUICK 455 7.5 1970-1975
CADILLAC 250 4.1 1987-1988
CADILLAC 252 4.1 1980-1982
CADILLAC 260 4.3 1985
CADILLAC 273 4.5 1988-1992
CADILLAC 300 4.9 1991-1994
CADILLAC 305 5.0 1991-1992
CADILLAC 307 5.0 1986-1990
CADILLAC 350 5.7 1978-1995
CADILLAC 390 6.4 1963
CADILLAC 429 7.0 1964-1967
CHECKER 229 3.8 1980-1982
CHECKER 230 3.8 1968
CHECKER 250 4.1 1969-1979
CHECKER 267 4.4 1980-1982
CHECKER 305 5.0 1978-1982
CHECKER 307 5.0 1968
CHECKER 327 5.4 1968-1969
CHECKER 350 5.7 1969-1982
CHEVROLET 173 2.8 1980-1986
CHEVROLET 194 3.2 1962-1966
CHEVROLET 196 3.2 1978-1979
CHEVROLET 200 3.3 1978-1979
CHEVROLET 229 3.8 1980-1984
CHEVROLET 230 3.8 1963-1970
CHEVROLET 231 3.8 1978-1987
CHEVROLET 235 3.9 1955-1962
CHEVROLET 250 4.1 1972-1984
CHEVROLET 260 4.3 1982-1985
CHEVROLET 262 4.3 1975-1994
CHEVROLET 265 4.3 1955-1957
CHEVROLET 267 4.4 1979-1982
CHEVROLET 283 4.6 1957-1967
CHEVROLET 292 4.8 1973-1989
CHEVROLET 305 5.0 1976-1995
CHEVROLET 307 5.0 1968-1990
CHEVROLET 327 5.4 1962-1969
CHEVROLET 348 5.7 1958-1961
CHEVROLET 350 5.7 1969-1995
CHEVROLET 395 6.5 1996-2000
CHEVROLET 396 6.5 1968-1970
CHEVROLET 400 6.6 1971-1980
CHEVROLET 402 6.6 1971-1972
CHEVROLET 409 6.7 1961-1965
CHEVROLET 427 7.0 1966-1969
CHEVROLET 454 7.4 1973-1990
DODGE 170 2.8 1961-1968
DODGE 225 3.7 1961-1968
DODGE 318 5.2 1979-1980
DODGE 360 5.9 1979-1980
DODGE 440 7.2 1979
EAGLE 150 2.5 1989
FORD 144 2.4 1960-1964
FORD 170 2.8 1960-1972
FORD 200 3.3 1963-1983
FORD 221 3.6 1963-1984
FORD 240 3.9 1968-1974
FORD 242 4.0 1968-1969
FORD 250 4.1 1969-1980
FORD 255 4.2 1980-1982
FORD 260 4.3 1963-1964
FORD 289 4.7 1963-1968
FORD 300 4.9 1968-1994
FORD 302 5.0 1968-1989
FORD 351 5.8 1975-1989
FORD 360 5.9 1968-1976
FORD 420 6.9 1983-1987
FORD 427 7.0 1967-1969
FORD 428 7.0 1967-1970
FORD 429 7.0 1968-1973
FORD 445 7.3 1988-1994
FORD 460 7.5 1972-1994
GMC 200 3.3 1978-1979
GMC 229 3.8 1980-1984
GMC 231 3.8 1978-1984
GMC 250 4.1 1973-1984
GMC 262 4.3 1985-1994
GMC 267 4.4 1980-1982
GMC 292 4.8 1973-1989
GMC 305 5.0 1976-1994
GMC 350 5.7 1969-1994
GMC 395 6.5 1996-2000
GMC 400 6.6 1975-1980
GMC 454 7.4 1973-1990
JEEP 225 3.7 1968-1971
JEEP 226 3.7 1962-1963
JEEP 230 3.8 1962-1967
JEEP 232 3.8 1965-1978
JEEP 242 4.0 1989-1994
JEEP 258 4.2 1972-1990
JEEP 304 5.0 1972-1981
JEEP 350 5.7 1969-1971
JEEP 360 5.9 1972-1991
JEEP 401 6.6 1974-1978
LINCOLN 232 3.8 1982
LINCOLN 302 5.0 1977-1982
LINCOLN 351 5.8 1980
LINCOLN 460 7.5 1969-1978
MERCEDES-BENZ 116 1.9 1960-1963
MERCURY 144 2.4 1962-1963
MERCURY 170 2.8 1962-1972
MERCURY 200 3.3 1968-1983
MERCURY 221 3.6 1962-1963
MERCURY 232 3.8 1982-1983
MERCURY 250 4.1 1969-1980
MERCURY 255 4.2 1980-1982
MERCURY 260 4.3 1963-1964
MERCURY 289 4.7 1964-1968
MERCURY 302 5.0 1969-1986
MERCURY 351 5.8 1970-1986
MERCURY 390 6.4 1967-1970
MERCURY 410 6.7 1967
MERCURY 427 7.0 1967-1968
MERCURY 428 7.0 1967-1970
MERCURY 429 7.0 1969-1973
MERCURY 460 7.5 1972-1978
OLDSMOBILE 151 2.5 1982-1992
OLDSMOBILE 173 2.8 1980-1986
OLDSMOBILE 181 3.0 1982-1985
OLDSMOBILE 215 3.5 1961-1963
OLDSMOBILE 225 3.7 1964-1965
OLDSMOBILE 231 3.8 1975-1987
OLDSMOBILE 250 4.1 1973-1976
OLDSMOBILE 252 4.1 1981-1984
OLDSMOBILE 260 4.3 1975-1985
OLDSMOBILE 262 4.3 1991-1992
OLDSMOBILE 267 4.4 1981-1982
OLDSMOBILE 305 5.0 1977-1992
OLDSMOBILE 307 5.0 1980-1990
OLDSMOBILE 330 5.4 1964-1967
OLDSMOBILE 350 5.7 1975-1992
OLDSMOBILE 371 6.1 1957-1959
OLDSMOBILE 394 6.5 1961-1964
OLDSMOBILE 400 6.6 1965-1975
OLDSMOBILE 403 6.6 1977-1979
OLDSMOBILE 425 7.0 1965-1967
OLDSMOBILE 455 7.5 1972-1976
PLYMOUTH 318 5.2 1979-1980
PLYMOUTH 360 5.9 1979
PONTIAC 140 2.3 1975-1976
PONTIAC 173 2.8 1980-1986
PONTIAC 215 3.5 1964-1965
PONTIAC 229 3.8 1980-1983
PONTIAC 230 3.8 1966-1967
PONTIAC 231 3.8 1976-1987
PONTIAC 239 3.9 1946-1954
PONTIAC 249 4.1 1946-1949
PONTIAC 250 4.1 1972-1976
PONTIAC 252 4.1 1982
PONTIAC 260 4.3 1975-1985
PONTIAC 262 4.3 1985-1987
PONTIAC 265 4.3 1980-1981
PONTIAC 267 4.4 1981-1982
PONTIAC 268 4.4 1950-1954
PONTIAC 287 4.7 1955
PONTIAC 301 4.9 1977-1981
PONTIAC 305 5.0 1977-1992
PONTIAC 307 5.0 1981-1989
PONTIAC 316 5.2 1956
PONTIAC 326 5.3 1963-1967
PONTIAC 347 5.7 1957
PONTIAC 350 5.7 1972-1992
PONTIAC 370 6.1 1958
PONTIAC 389 6.4 1965-1966
PONTIAC 400 6.6 1972-1979
PONTIAC 403 6.6 1977-1979
PONTIAC 421 6.9 1963-1966
PONTIAC 428 7.0 1967-1969
PONTIAC 455 7.5 1972-1976

The model list of applications for this thermostat series is so extensive it cannot be part of the search functionality. It is included here for the secondary site search feature.

190sl, 442, 6000, 88, a100, allante, ambassador, amx, apollo, astre, astro, b100 van, b200 van, b300 van, bel air, belvedere, biscayne, blazer, bonneville, bravada, bronco, brookwood, brougham, c10 pickup, c10 suburban, c15/c1500 pickup, c15/c1500 suburban, c1500 pickup, c1500 suburban, c20 pickup, c20 suburban, c25/c2500 pickup, c25/c2500 suburban, c2500 pickup, c2500 suburban, c30 pickup, c35/c3500 pickup, c3500 pickup, caballero, calais, caliente, camaro, capri, caprice, caravelle, catalina, cb300, celebrity, centurion, century, charger, cherokee, chevelle, chevy ii, chieftain, citation, cj7, classic, club, club wagon, cobra, colony park, comanche, comet, commuter, concord, continental, coronet, corvette, cougar, country cruiser, country sedan, country squire, custom, custom 500, custom cruiser, cutlass, cutlass calais, cutlass ciera, cutlass cruiser, cutlass supreme, cyclone, d100 pickup, d100 series, d150 pickup, d200 pickup, d200 series, d300 pickup, d300 series, d350 pickup, d400 pickup, d450 pickup, dart, del ray, delmont 88, delta 88, deluxe, deville, diplomat, dj5, dj6, duster, dynamic, e-100 econoline, e-150 econoline, e-200 econoline, e-250 econoline, e-300 econoline, e-350 econoline, eagle, econoline, el camino, eldorado, electra, estate wagon, executive, express 2500, f-100 pickup, f-150 pickup, f-250 pickup, f-350 pickup, f-450 super duty pickup, f53 stripped chassis, f59 stripped chassis, f85, fairlane, fairmont, falcon, falcon sedan delivery, fc170, fiesta, firebird, fleetwood, ford 300, fury, fury i, fury ii, fury iii, g10 van, g15/g1500 van, g20 van, g25/g2500 van, g2500 van, g30 van, g35/g3500 van, g3500 van, galaxie, galaxie 500, gladiator, gran fury, gran sport, gran torino, granada, grand am, grand cherokee, grand lemans, grand marquis, grand prix, grand safari, grand wagoneer, grandville, gremlin, gs, gs 400, gs 455, gto, hornet, hummer, impala, j10, j-100, j20, j-2500, j-2600, j-2700, j-3500, j-3600, j-3700, j-3800, javelin, jeep, jeepster, jetfire, jetstar 88, jimmy, k10 pickup, k10 suburban, k15/k1500 pickup, k15/k1500 suburban, k1500 pickup, k1500 suburban, k20 pickup, k20 suburban, k25/k2500 pickup, k25/k2500 suburban, k2500 pickup, k2500 suburban, k30 pickup, k35/k3500 pickup, k3500 pickup, kingswood, laguna, lancer, laurentian, lemans, lesabre, ltd, ltd ii, m-400, m-450, magnum, malibu, marathon, marauder, mark iii, mark iv, mark v, mark vi, marlin, marquis, matador, maverick, meteor, monarch, montclair, monte carlo, montego, monterey, monza, mustang, mustang ii, nova, omega, one-fifty series, p10 series, p10 van, p100, p-100, p15/p1500 van, p20 series, p20 van, p200, p25/p2500 van, p30 series, p30 van, p300, p35/p3500 van, p-350, pacer, parisienne, park lane, pb100 van, pb150 van, pb200 van, pb250 van, pb300 van, pb350 van, phoenix, polara, premier, r10 pickup, r10 suburban, r1500 pickup, r1500 suburban, r20 pickup, r20 suburban, r2500 pickup, r2500 suburban, r30 pickup, r3500 pickup, rambler, ramcharger, ranch wagon, ranchero, regal, riviera, roadmaster, rogue, s10 blazer, s10 pickup, s15 jimmy, s15 pickup, s15 sonoma, s15 syclone, s15 typhoon, safari, savana 2500, savana 3500, scrambler, series 62, series 75 fleetwood, seville, skyhawk, skylark, special, spirit, sportwagon, sprint, st. regis, star chief, starfire, streamliner, suburban, sunbird, sunliner, super 88, super chief, super six, tahoe, tempest, thunderbird, torino, tornado, toronado, torpedo, town car, townsman, trailduster, truck, two-ten series, universal, v10 suburban, v1500 pickup, v1500 suburban, v20 pickup, v20 suburban, v2500 pickup, v2500 suburban, v30 pickup, v3500 pickup, ventura, versailles, victoria, villager, vista cruiser, volare, voyager, w100 pickup, w100 series, w150 pickup, w200 pickup, w200 series, w300 pickup, w300 series, wagoneer, wildcat, wrangler, yukon, zephyr