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Harrison Radiator Part Stampings

Harrison Radiator Corporation was an early manufacturer of automotive radiators.   Herbert C. Harrison (1876-1927), the founder, had a technical background in metallurgy and the “Harrison Hexagon” honeycomb radiator had advantages in design (hexagon cellular pattern) and manufacturing that made leakages rare.

The company was founded in 1910 as the Harrison Radiator Company. The first hand-built radiator was sold in 1911 to the Remington Standard Motor Company of New York. The company was sold to United Motors Company in 1917 and had large contracts with the Mitchell, Hupp, and Chandler, among other motor companies. William C. Durant acquired United Motors Company in 1918 and under Durant, Harrison expanded to supply Oldsmobile, Oakland and the Chevrolet motor companies.

In 1918 Durant merged with Chevrolet and  sold United Motors along with The Harrison Radiator Division to General Motors. Herbert Harrison remained President of Harrison Radiator until his death in 1927.  By 1929, the company was manufacturing 2.3 million radiators annually.

Attached is a listing of the die  stampings found on the engine side of the radiator top tank. Please note, this is not necessarily the part number. Year and month of production are usually found above this part stamping with the year denoted as two numbers and the month as a letter e.g. 46 G would 1946 month 6 or June.

This listing has been compiled from original radiators, parts books and our restorer customers. If you see an error, omission, addition or some other helpful way to build on this knowledge base please email sales@thebrassworks.net .  We will consult with Technical advisers from one of the many forums to confirm the correction and update our list accordingly.

Year Group Harrison Stamp Notes Year Group Harrison Stamp Notes
1929 Chevy Car 3008 3/8″ hexagon cell core 1934 Chevy Truck 31019  1/2 ton
1929 Chevy Car 3009 3/8″ hexagon cell core 1935 Chevy Truck 31048

3106560

379389 379393

610383

1/2 ton

1-1/2 ton

1930 Chevy Car 3052 3/8″ hexagon cell core 1936 Chevy Truck 31049

3105938

3106670

1/2″ ton

1-1/2 ton “L” Brackets

1/2 ton

1931 Chevy Car 3053 3/8″ hexagon cell core 1937 Chevy Truck 3107891

3107892

1931 Chevy Car 3075 3/8″ hexagon cell core 1937-39 Chevy Truck 3121212 3″ core Commercial Utility except COE
1931 Chevy Car 3053 3/8″ hexagon cell core 1937-39 Chevy Truck 3121208 3″ core commercial, utility not COE
1931 Chevy Car 3075 3/8″ hexagon cell core 1937-39 Chevy Truck 3121208 2″ core
1932 Chevy Car 3088 3/8″ hexagon cell core 1939 Chevy Truck 3112132
1932 Chevy Car 3092 3/8″ hexagon cell core 1939 Chevy Truck 3112131

3113455

3115041

3″ with angled sidewall

2″ with angled sidewall

1933 Chevy Car 3092 1939-40 Chevy Truck 3112375  COE
1933 Master Chevy Car 31001 1940 Chevy Truck 3113453  Commercial Utility except COE
1933 Standard Chevy Car 31002 1941-46 Chevy Truck 3116352 2″ core 1 Ton, 1.5 Ton with angled sidewall
1934 Master Chevy Car 31020 1941-46 Chevy Truck 3115087
1934 Standard Chevy Car 31021 1941-46 Chevy Truck  311455

3116353

2″ core
1935 Master Chevy Car 31046 1941-46 Chevy Truck 3115087  COE
1936 Master Chevy Car 3106480 1947 Chevy Truck 3107892
1936 Standard Chevy Car 3106480 1948 Chevy Truck 3118967
1937 Chevy Car 3108266

3108269

3116353

1951 Chevy Truck 3116352
1938 Chevy Car 3109032 1954 Chevy Truck  1 Ton, 1.5 ton heavy duty
1939 Chevy Car 3112128 1954 Chevy Truck 3121499  2 ton not 261
1940-41 Chevy Car 3114869 2″ Core 1954 Chevy Truck  .5 ton, .75 ton
1942-48 Chevy Car 3121096

3117607

2″ Core 1954 Chevy Truck 3131361 2.5″ core
1949-54 Chevy Car 3128877 2″ Core 1954 Chevy Truck 3131362 2″ core
1949-54 Chevy Car 3128877

3108266

2″ Core 1954 Chevy Truck 3132039 3″ core
1953-55 Chevy Car 3130953 1955 Chevy Truck  heavy duty
1953-57 Chevy Car 3706261 Corvette Auxillary 1956 Chevy Truck 3135895 2″ core
1955-57 Chevy Car 3136157 8 cylinder with  automatic transmission 1956 Chevy Truck 3135894 2.5″ core
1955-56 Chevy Car 3133042 6 cylinder except power glide 1947-53 Chevy Truck 3128513 2″ core
1955-56 Chevy Car 3133043 6 cylinder with power glide 1947-52 Chevy Truck 3128513 2″ core
1955-57 Chevy Car 3133043 6 cylinder – automatic 1947-52 Chevy Truck 3128514 3″ core
1955-57 Chevy Car 3133042 6 cylinder – manual and overdrive transmission 1947-53 Chevy Truck 3115087 1.5 ton
1955-57 Chevy Car 3137077 2″ core, 8 cyl except automatic transmission 1947-53 Chevy Truck  .75 ton, 1 ton, 1.5 ton (heavy duty)
1955-57 Chevy Car 3133689 V8 corvette 1947-53 Chevy Truck  2 ton heavy duty
1957 Chevy Car 3136569 2″ Core 6 cyl except power glide 1948-54 Chevy Truck 3121500
1957 Chevy Car 3136570 2″ Core 6 cyl with power glide 1948-55 Chevy Truck 3131362 2″ core
1957 Chevy Car 3136569 1952-53 Chevy Truck 3128514 2.5″ core
1954-1955 Chevy Truck 3118968 2″ core 1.5 Ton, 1.75 Ton
1954-1955 Chevy Truck 3131361 2.5″ core 1 Ton, 1.5 Ton,
1954-55 Chevy Truck 3121499 3″ core
1954-55 Chevy Truck 3132039 3″ core
1955-57 Chevy Truck 3135642 2″ core
1955-57 Chevy Truck 3135857  6 cylinder
1955-57 Chevy Truck  2 ton 8 cylinder
1956-1957 Chevy Truck  1.5 not hvy duty
1956-57 Chevy Truck  2 ton 8 cylinder
1956-57 Chevy Truck 3135896 2″ core
3128515 2″ core