Home / Shop / EMP Stewart High Performance Thermostats 300 Thermostat, 160 Degree, High-Flow, Copper/Steel, 3 Bypass Holes, Each

EMP Stewart High Performance Thermostats 300 Thermostat, 160 Degree, High-Flow, Copper/Steel, 3 Bypass Holes, Each

SKU: EMP300

Thermostats, Mechanical

Emp/stewart Components

EMP Stewart High Performance Thermostats 300 Thermostat, 160 Degree, High-Flow, Copper/Steel, 3 Bypass Holes, Each

SKU: EMP300

Thermostats, Mechanical

IN STOCK! Est Ship 3-7 Days days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.

We accept

Description

EMP Stewart custom thermostats are manufactured by Robert Shaw and modified by EMP Stewart. They feature a balanced sleeve design and are designed for high-rpm applications. These high-flow thermostats are recommended for any performance applications and work well with high-output water pumps.

Part Type

Thermostat 160 Degree

Data: v4.2 - Upd: 2026-10-10 18:46:58

Specifications

Product Attributes - Brand: EMP/Stewart Components
Product Attributes - Manufacturer's Part Number: 300
Product Attributes - Part Type: Thermostats, Mechanical
Product Attributes - Product Line: EMP Stewart High Performance Thermostats
Product Attributes - UPC: 694455000649
Product Attributes - Opening Temperature Rating (degrees F): 160 degrees F
Product Attributes - Thermostat Flow Rate: High-flow
Product Attributes - Gaskets Included: No
Product Attributes - Thermostat Material: Copper/Steel
Product Attributes - Quantity: Sold individually.
Product Attributes - Notes: Modified with three 3/16 in. bypass holes.

Reference Information

Brand Name/s	Emp/stewart Components
StreetFX SKU	emp300
SFX Item ID	5187920
Supplier Item Code	5187920
Manufacturer SKU	300
Manufacturer UPC	694455000649
Alternative References	STE300

Compatibility

Application Data

Beginning Year 1959
Ending Year 1965
Engine Family AMC L6 GAS
Engine Size 3.2L/196
Engine Type L6
Make AMERICAN MOTORS
Thermostat Fitment Search by engine
Beginning Year 1960
Ending Year 1966
Engine Family AMC V8 GAS
Engine Size 5.4L/327
Engine Type V8
Make AMERICAN MOTORS
Thermostat Fitment Search by engine
Beginning Year 1964
Ending Year 1979
Engine Family AMC L6 GAS
Engine Size 3.8L/232
Engine Type L6
Make AMERICAN MOTORS
Thermostat Fitment Search by engine
Beginning Year 1965
Ending Year 1970
Engine Family AMC L6 GAS
Engine Size 3.3L/199
Engine Type L6
Make AMERICAN MOTORS
Thermostat Fitment Search by engine
Beginning Year 1967
Ending Year 1969
Engine Family AMC V8 GAS
Engine Size 4.8L/290
Engine Type V8
Make AMERICAN MOTORS
Thermostat Fitment Search by engine
Beginning Year 1967
Ending Year 1969
Engine Family AMC V8 GAS
Engine Size 5.6L/343
Engine Type V8
Make AMERICAN MOTORS
Thermostat Fitment Search by engine
Beginning Year 1968
Ending Year 1970
Engine Family AMC V8 GAS
Engine Size 6.4L/390
Engine Type V8
Make AMERICAN MOTORS
Thermostat Fitment Search by engine
Beginning Year 1970
Ending Year 1978
Engine Family AMC V8 GAS
Engine Size 5.9L/360
Engine Type V8
Make AMERICAN MOTORS
Thermostat Fitment Search by engine
Beginning Year 1970
Ending Year 1979
Engine Family AMC V8 GAS
Engine Size 5.0L/304
Engine Type V8
Make AMERICAN MOTORS
Thermostat Fitment Search by engine
Beginning Year 1971
Ending Year 1976
Engine Family AMC V8 GAS
Engine Size 6.6L/401
Engine Type V8
Make AMERICAN MOTORS
Thermostat Fitment Search by engine
Beginning Year 1971
Ending Year 1988
Engine Family AMC L6 GAS
Engine Size 4.2L/258
Engine Type L6
Make AMERICAN MOTORS
Thermostat Fitment Search by engine
Beginning Year 1984
Ending Year 1984
Engine Family AMC 4-cylinder
Engine Size 2.5L/150
Engine Type L4
Make AMERICAN MOTORS
Thermostat Fitment Search by engine
Beginning Year 1967
Ending Year 1969
Engine Family BUICK V8 GAS
Engine Size 7.0L/430
Engine Type V8
Make BUICK
Thermostat Fitment Search by engine
Beginning Year 1968
Ending Year 1969
Engine Family BUICK V8 GAS
Engine Size 6.6L/400
Engine Type V8
Make BUICK
Thermostat Fitment Search by engine
Beginning Year 1968
Ending Year 1980
Engine Family BUICK V8 GAS
Engine Size 5.7L/350
Engine Type V8
Make BUICK
Thermostat Fitment Search by engine
Beginning Year 1970
Ending Year 1975
Engine Family BUICK V8 GAS
Engine Size 7.5L/455
Engine Type V8
Make BUICK
Thermostat Fitment Search by engine
Beginning Year 1975
Ending Year 1987
Engine Family GM V6 GAS
Engine Size 3.8L/231
Engine Type V6
Make BUICK
Thermostat Fitment Search by engine
Beginning Year 1978
Ending Year 1979
Engine Family GM V6 GAS
Engine Size 3.2L/196
Engine Type V6
Make BUICK
Thermostat Fitment Search by engine
Beginning Year 1980
Ending Year 1984
Engine Family GM V6 GAS
Engine Size 4.1L/252
Engine Type V6
Make BUICK
Thermostat Fitment Search by engine
Beginning Year 1980
Ending Year 1986
Engine Family GM V6 GAS
Engine Size 2.8L/173
Engine Type V6
Make BUICK
Thermostat Fitment Search by engine
Application Notes Fits diesel only.
Beginning Year 1982
Ending Year 1985
Engine Family GM diesel V6
Engine Size 4.3L/260
Engine Type V6
Make BUICK
Thermostat Fitment Search by engine
Application Notes Fits 14-bolt oil pan only.
Beginning Year 1986
Ending Year 1988
Engine Family GM V6 GAS
Engine Size 3.8L/231
Engine Type V6
Make BUICK
Thermostat Fitment Search by engine
Beginning Year 1950
Ending Year 1955
Engine Family CADILLAC V8 GAS
Engine Size 5.4L/331
Engine Type V8
Make CADILLAC
Thermostat Fitment Search by engine
Beginning Year 1956
Ending Year 1958
Engine Family CADILLAC V8 GAS
Engine Size 6.0L/365
Engine Type V8
Make CADILLAC
Thermostat Fitment Search by engine
Beginning Year 1959
Ending Year 1963
Engine Family CADILLAC V8 GAS
Engine Size 6.4L/390
Engine Type V8
Make CADILLAC
Thermostat Fitment Search by engine
Beginning Year 1964
Ending Year 1967
Engine Family CADILLAC V8 GAS
Engine Size 7.0L/429
Engine Type V8
Make CADILLAC
Thermostat Fitment Search by engine
Beginning Year 1968
Ending Year 1974
Engine Family CADILLAC V8 GAS
Engine Size 7.7L/472
Engine Type V8
Make CADILLAC
Thermostat Fitment Search by engine
Beginning Year 1970
Ending Year 1976
Engine Family CADILLAC V8 GAS
Engine Size 8.2L/500
Engine Type V8
Make CADILLAC
Thermostat Fitment Search by engine
Beginning Year 1977
Ending Year 1979
Engine Family CADILLAC V8 GAS
Engine Size 7.0L/425
Engine Type V8
Make CADILLAC
Thermostat Fitment Search by engine
Beginning Year 1980
Ending Year 1984
Engine Family CADILLAC V8 GAS
Engine Size 6.0L/368
Engine Type V8
Make CADILLAC
Thermostat Fitment Search by engine
Beginning Year 1981
Ending Year 1982
Engine Family GM V6 GAS
Engine Size 4.1L/252
Engine Type V6
Make CADILLAC
Thermostat Fitment Search by engine
Beginning Year 1982
Ending Year 1988
Engine Family CADILLAC V8 GAS
Engine Size 4.1L/250
Engine Type V8
Make CADILLAC
Thermostat Fitment Search by engine
Beginning Year 1988
Ending Year 1989
Engine Family CADILLAC V8 GAS
Engine Size 4.5L/273
Engine Type V8
Make CADILLAC
Thermostat Fitment Search by engine
Beginning Year 1955
Ending Year 1957
Engine Family Chevy small block Gen I
Engine Size 4.3L/265
Engine Type V8
Make CHEVROLET
Thermostat Fitment Search by engine
Beginning Year 1957
Ending Year 1967
Engine Family Chevy small block Gen I
Engine Size 4.6L/283
Engine Type V8
Make CHEVROLET
Thermostat Fitment Search by engine
Beginning Year 1962
Ending Year 1969
Engine Family Chevy small block Gen I
Engine Size 5.4L/327
Engine Type V8
Make CHEVROLET
Thermostat Fitment Search by engine
Beginning Year 1966
Ending Year 1969
Engine Family Chevy big block Mark IV
Engine Size 7.0L/427
Engine Type V8
Make CHEVROLET
Thermostat Fitment Search by engine
Beginning Year 1966
Ending Year 1970
Engine Family Chevy big block Mark IV
Engine Size 6.5L/396
Engine Type V8
Make CHEVROLET
Thermostat Fitment Search by engine
Beginning Year 1967
Ending Year 1968
Engine Family Chevy small block Gen I
Engine Size 4.9L/302
Engine Type V8
Make CHEVROLET
Thermostat Fitment Search by engine
Beginning Year 1967
Ending Year 1987
Engine Family Chevy small block Gen I
Engine Size 5.7L/350
Engine Type V8
Make CHEVROLET
Thermostat Fitment Search by engine
Beginning Year 1968
Ending Year 1973
Engine Family Chevy small block Gen I
Engine Size 5.0L/307
Engine Type V8
Make CHEVROLET
Thermostat Fitment Search by engine
Beginning Year 1970
Ending Year 1972
Engine Family Chevy big block Mark IV
Engine Size 6.6L/402
Engine Type V8
Make CHEVROLET
Thermostat Fitment Search by engine
Beginning Year 1970
Ending Year 1980
Engine Family Chevy small block Gen I
Engine Size 6.6L/400
Engine Type V8
Make CHEVROLET
Thermostat Fitment Search by engine
Beginning Year 1970
Ending Year 1990
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Engine Type V8
Make CHEVROLET
Thermostat Fitment Search by engine
Beginning Year 1976
Ending Year 1987
Engine Family Chevy small block Gen I
Engine Size 5.0L/305
Engine Type V8
Make CHEVROLET
Thermostat Fitment Search by engine
Beginning Year 1978
Ending Year 1986
Engine Family GM V6 GAS
Engine Size 3.8L/231
Engine Type V6
Make CHEVROLET
Thermostat Fitment Search by engine
Beginning Year 1979
Ending Year 1982
Engine Family Chevy small block Gen I
Engine Size 4.4L/267
Engine Type V8
Make CHEVROLET
Thermostat Fitment Search by engine
Beginning Year 1980
Ending Year 1984
Engine Family GM V6 GAS
Engine Size 3.8L/229
Engine Type V6
Make CHEVROLET
Thermostat Fitment Search by engine
Beginning Year 1982
Ending Year 1986
Engine Family GM V6 GAS
Engine Size 2.8L/173
Engine Type V6
Make CHEVROLET
Thermostat Fitment Search by engine
Beginning Year 1983
Ending Year 1983
Engine Family GM L6 GAS
Engine Size 4.1L/250
Engine Type L6
Make CHEVROLET
Thermostat Fitment Search by engine
Beginning Year 1985
Ending Year 1993
Engine Family GM V6 GAS
Engine Size 4.3L/262
Engine Type V6
Make CHEVROLET
Thermostat Fitment Search by engine
Beginning Year 1978
Ending Year 1983
Engine Family Mopar inline 6-cylinder
Engine Size 3.7L/225
Engine Type L6
Make CHRYSLER
Thermostat Fitment Search by engine
Beginning Year 1979
Ending Year 1980
Engine Family Mopar small block LA
Engine Size 5.9L/360
Engine Type V8
Make CHRYSLER
Thermostat Fitment Search by engine
Beginning Year 1979
Ending Year 1989
Engine Family Mopar small block LA
Engine Size 5.2L/318
Engine Type V8
Make CHRYSLER
Thermostat Fitment Search by engine
Beginning Year 1988
Ending Year 1989
Engine Family Mitsubishi V6
Engine Size 3.0L/181
Engine Type V6
Make CHRYSLER
Thermostat Fitment Search by engine
Beginning Year 1978
Ending Year 1983
Engine Family Mopar inline 6-cylinder
Engine Size 3.7L/225
Engine Type L6
Make DODGE
Thermostat Fitment Search by engine
Beginning Year 1979
Ending Year 1989
Engine Family Mopar small block LA
Engine Size 5.2L/318
Engine Type V8
Make DODGE
Thermostat Fitment Search by engine
Beginning Year 1979
Ending Year 1989
Engine Family Mopar small block LA
Engine Size 5.9L/360
Engine Type V8
Make DODGE
Thermostat Fitment Search by engine
Beginning Year 1988
Ending Year 1989
Engine Family Mitsubishi V6
Engine Size 3.0L/181
Engine Type V6
Make DODGE
Thermostat Fitment Search by engine
Beginning Year 1967
Ending Year 1969
Engine Family FORD BIG BLOCK FE V8 GAS
Engine Size 7.0L/427
Engine Type V8
Make FORD
Thermostat Fitment Search by engine
Beginning Year 1967
Ending Year 1970
Engine Family FORD BIG BLOCK FE V8 GAS
Engine Size 7.0L/428
Engine Type V8
Make FORD
Thermostat Fitment Search by engine
Beginning Year 1967
Ending Year 1975
Engine Family FORD BIG BLOCK FE V8 GAS
Engine Size 6.4L/390
Engine Type V8
Make FORD
Thermostat Fitment Search by engine
Beginning Year 1968
Ending Year 1973
Engine Family Ford big block 385 Series
Engine Size 7.0L/429
Engine Type V8
Make FORD
Thermostat Fitment Search by engine
Beginning Year 1968
Ending Year 1995
Engine Family Ford small block Windsor
Engine Size 5.0L/302
Engine Type V8
Make FORD
Thermostat Fitment Search by engine
Beginning Year 1969
Ending Year 1980
Engine Family FORD L6 GAS
Engine Size 4.1L/250
Engine Type L6
Make FORD
Thermostat Fitment Search by engine
Application Notes Fits Windsor only.
Beginning Year 1969
Ending Year 1995
Engine Family Ford small block Windsor
Engine Size 5.8L/351
Engine Type V8
Make FORD
Thermostat Fitment Search by engine
Beginning Year 1972
Ending Year 1978
Engine Family Ford big block 385 Series
Engine Size 7.5L/460
Engine Type V8
Make FORD
Thermostat Fitment Search by engine
Beginning Year 1982
Ending Year 1983
Engine Family FORD L6 GAS
Engine Size 3.3L/200
Engine Type L6
Make FORD
Thermostat Fitment Search by engine
Beginning Year 1964
Ending Year 1968
Engine Family Ford small block Windsor
Engine Size 4.7L/289
Engine Type V8
Make MERCURY
Thermostat Fitment Search by engine
Beginning Year 1968
Ending Year 1993
Engine Family Ford small block Windsor
Engine Size 5.0L/302
Engine Type V8
Make MERCURY
Thermostat Fitment Search by engine
Beginning Year 1969
Ending Year 1973
Engine Family Ford big block 385 Series
Engine Size 7.0L/429
Engine Type V8
Make MERCURY
Thermostat Fitment Search by engine
Beginning Year 1969
Ending Year 1981
Engine Family Ford small block Windsor
Engine Size 5.8L/351
Engine Type V8
Make MERCURY
Thermostat Fitment Search by engine
Beginning Year 1972
Ending Year 1978
Engine Family Ford big block 385 Series
Engine Size 7.5L/460
Engine Type V8
Make MERCURY
Thermostat Fitment Search by engine
Beginning Year 1980
Ending Year 1982
Engine Family Ford small block Windsor
Engine Size 4.2L/255
Engine Type V8
Make MERCURY
Thermostat Fitment Search by engine
Beginning Year 1983
Ending Year 1989
Engine Family Ford small block Windsor
Engine Size 5.8L/351
Engine Type V8
Make MERCURY
Thermostat Fitment Search by engine
Beginning Year 1985
Ending Year 1992
Engine Family FORD V6 GAS
Engine Size 3.8L/232
Engine Type V6
Make MERCURY
Thermostat Fitment Search by engine
Beginning Year 1964
Ending Year 1967
Engine Family OLDSMOBILE V8 GAS
Engine Size 5.4L/330
Engine Type V8
Make OLDSMOBILE
Thermostat Fitment Search by engine
Beginning Year 1965
Ending Year 1967
Engine Family OLDSMOBILE V8 GAS
Engine Size 7.0L/425
Engine Type V8
Make OLDSMOBILE
Thermostat Fitment Search by engine
Beginning Year 1965
Ending Year 1969
Engine Family OLDSMOBILE V8 GAS
Engine Size 6.6L/400
Engine Type V8
Make OLDSMOBILE
Thermostat Fitment Search by engine
Beginning Year 1968
Ending Year 1976
Engine Family OLDSMOBILE V8 GAS
Engine Size 7.5L/455
Engine Type V8
Make OLDSMOBILE
Thermostat Fitment Search by engine
Beginning Year 1968
Ending Year 1980
Engine Family OLDSMOBILE V8 GAS
Engine Size 5.7L/350
Engine Type V8
Make OLDSMOBILE
Thermostat Fitment Search by engine
Beginning Year 1977
Ending Year 1979
Engine Family OLDSMOBILE V8 GAS
Engine Size 6.6L/403
Engine Type V8
Make OLDSMOBILE
Thermostat Fitment Search by engine
Beginning Year 1980
Ending Year 1990
Engine Family OLDSMOBILE V8 GAS
Engine Size 5.0L/307
Engine Type V8
Make OLDSMOBILE
Thermostat Fitment Search by engine
Beginning Year 1981
Ending Year 1986
Engine Family GM V6 GAS
Engine Size 2.8L/173
Engine Type V6
Make OLDSMOBILE
Thermostat Fitment Search by engine
Beginning Year 1981
Ending Year 1987
Engine Family GM V6 GAS
Engine Size 3.8L/231
Engine Type V6
Make OLDSMOBILE
Thermostat Fitment Search by engine
Beginning Year 1982
Ending Year 1984
Engine Family GM V6 GAS
Engine Size 3.0L/181
Engine Type V6
Make OLDSMOBILE
Thermostat Fitment Search by engine
Beginning Year 1982
Ending Year 1985
Engine Family GM diesel V6
Engine Size 4.3L/260
Engine Type V6
Make OLDSMOBILE
Thermostat Fitment Search by engine
Application Notes Fits 14-bolt oil pan only.
Beginning Year 1985
Ending Year 1985
Engine Family GM V6 GAS
Engine Size 3.8L/231
Engine Type V6
Make OLDSMOBILE
Thermostat Fitment Search by engine
Beginning Year 1979
Ending Year 1983
Engine Family Mopar inline 6-cylinder
Engine Size 3.7L/225
Engine Type L6
Make PLYMOUTH
Thermostat Fitment Search by engine
Beginning Year 1979
Ending Year 1983
Engine Family Mopar small block LA
Engine Size 5.9L/360
Engine Type V8
Make PLYMOUTH
Thermostat Fitment Search by engine
Beginning Year 1979
Ending Year 1989
Engine Family Mopar small block LA
Engine Size 5.2L/318
Engine Type V8
Make PLYMOUTH
Thermostat Fitment Search by engine
Beginning Year 1987
Ending Year 1989
Engine Family Mitsubishi V6
Engine Size 3.0L/181
Engine Type V6
Make PLYMOUTH
Thermostat Fitment Search by engine
Beginning Year 1959
Ending Year 1966
Engine Family PONTIAC V8 GAS
Engine Size 6.4L/389
Engine Type V8
Make PONTIAC
Thermostat Fitment Search by engine
Beginning Year 1963
Ending Year 1967
Engine Family PONTIAC V8 GAS
Engine Size 5.3L/326
Engine Type V8
Make PONTIAC
Thermostat Fitment Search by engine
Beginning Year 1967
Ending Year 1979
Engine Family PONTIAC V8 GAS
Engine Size 6.6L/400
Engine Type V8
Make PONTIAC
Thermostat Fitment Search by engine
Beginning Year 1968
Ending Year 1977
Engine Family PONTIAC V8 GAS
Engine Size 5.7L/350
Engine Type V8
Make PONTIAC
Thermostat Fitment Search by engine
Beginning Year 1970
Ending Year 1976
Engine Family PONTIAC V8 GAS
Engine Size 7.5L/455
Engine Type V8
Make PONTIAC
Thermostat Fitment Search by engine
Beginning Year 1976
Ending Year 1986
Engine Family GM V6 GAS
Engine Size 3.8L/231
Engine Type V6
Make PONTIAC
Thermostat Fitment Search by engine
Beginning Year 1980
Ending Year 1986
Engine Family GM V6 GAS
Engine Size 2.8L/173
Engine Type V6
Make PONTIAC
Thermostat Fitment Search by engine
Beginning Year 1981
Ending Year 1981
Engine Family GM V6 GAS
Engine Size 3.8L/229
Engine Type V6
Make PONTIAC
Thermostat Fitment Search by engine
Beginning Year 1982
Ending Year 1982
Engine Family GM V6 GAS
Engine Size 4.1L/252
Engine Type V6
Make PONTIAC
Thermostat Fitment Search by engine
Beginning Year 1982
Ending Year 1985
Engine Family GM diesel V6
Engine Size 4.3L/260
Engine Type V6
Make PONTIAC
Thermostat Fitment Search by engine
Beginning Year 1985
Ending Year 1987
Engine Family GM V6 GAS
Engine Size 4.3L/262
Engine Type V6
Make PONTIAC
Thermostat Fitment Search by engine

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EMP Stewart High Performance Thermostats 300 Thermostat, 160 Degree, High-Flow, Copper/Steel, 3 Bypass Holes, Each

EMP Stewart High Performance Thermostats 300 Thermostat, 160 Degree, High-Flow, Copper/Steel, 3 Bypass Holes, Each

Description

Part Type

Specifications

Reference Information

Compatibility

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