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 core notes
1929 Chevy Car 3008 3/8″ hexagon cell core
1929 Chevy Car 3009 3/8″ hexagon cell core
1930 Chevy Car 3052 3/8″ hexagon cell core
1931 Chevy Car 3053 3/8″ hexagon cell core
1931 Chevy Car 3075 3/8″ hexagon cell core
1931 Chevy Car 3053 3/8″ hexagon cell core
1931 Chevy Car 3075 3/8″ hexagon cell core
1932 Chevy Car 3088 3/8″ hexagon cell core
1932 Chevy Car 3092 3/8″ hexagon cell core
1933 Chevy Car 3092
1933 Master Chevy Car 31001
1933 Standard Chevy Car 31002
1934 Master Chevy Car 31020
1934 Standard Chevy Car 31021
1935 Master Chevy Car 3104680
1936 Master Chevy Car 3106480
1936 Standard Chevy Car 3106480
1937 Chevy Car 3108266
3108269
3116353
1938 Chevy Car 3109032
1939 Chevy Car 3112128
3113279
1940-41 Chevy Car 3114869 2″ Core
3113280
1942-48 Chevy Car 3121096 2″ Core
3117607
1949-54 Chevy Car 3128877 2″ Core
1949-54 Chevy Car 3128877 2″ Core
3108266
1953-55 Chevy Car 3130953
1953-57 Chevy Car 3706261 corvette auxillary
1955-57 Chevy Car 3136157 8 cylinder with  automatic transmission
1955-56 Chevy Car 3133042 6 cylinder except power glide
1955-56 Chevy Car 3133043 6 cylinder with power glide
3136158
1955-57 Chevy Car 3133043 6 cylinder – automatic
1955-57 Chevy Car 3133042 6 cylinder – manual and overdrive transmission
1955-57 Chevy Car 3137077 2″ core, 8 cyl except automatic transmission
1955-57 Chevy Car 3133689 V8 corvette
1957 Chevy Car 3136569 2″ Core 6 cyl except power glide
1957 Chevy Car 3136570 2″ Core 6 cyl with power glide
1957 Chevy Car 3136569
TRUCKS
1934 Chevy Truck 31019  1/2 ton
1935 Chevy Truck 31048 1/2 ton
3106560 1-1/2 ton
379389 379393
610383
1936 Chevy Truck 31049 1/2″ ton
3105938 1-1/2 ton “L” Brackets
3106670 1/2 ton
1937 Chevy Truck 3107891
3107892
1937-39 Chevy Truck 3121212 3″ core Commercial Utility except COE
1937-39 Chevy Truck 3121208 3″ core commercial, utility not COE
1937-39 Chevy Truck 3121208 2″ core
1939 Chevy Truck 3112132
1939 Chevy Truck 3112131 3″ with angled sidewall
3113455 2″ with angled sidewall
3115041
1939-40 Chevy Truck 3112375  COE
1940 Chevy Truck 3113453  Commercial Utility except COE
1941-46 Chevy Truck 3116352 2″ core 1 Ton, 1.5 Ton with angled sidewall
1941-46 Chevy Truck 3115087
1941-46 Chevy Truck  311455 2″ core
3116353
1941-46 Chevy Truck 3115087  COE
1947 Chevy Truck 3107892
1948 Chevy Truck 3118967
1951 Chevy Truck 3116352
1954 Chevy Truck  1 Ton, 1.5 ton heavy duty
1954 Chevy Truck 3121499  2 ton not 261
1954 Chevy Truck  .5 ton, .75 ton
1954 Chevy Truck 3131361 2.5″ core
1954 Chevy Truck 3131362 2″ core
1954 Chevy Truck 3132039 3″ core
1955 Chevy Truck  heavy duty
1956 Chevy Truck 3135895 2″ core
1956 Chevy Truck 3135894 2.5″ core
1947-53 Chevy Truck 3128513 2″ core
1947-52 Chevy Truck 3128513 2″ core
1947-52 Chevy Truck 3128514 3″ core
1947-53 Chevy Truck 3115087 1.5 ton
1947-53 Chevy Truck  .75 ton, 1 ton, 1.5 ton (heavy duty)
1947-53 Chevy Truck  2 ton heavy duty
1948-54 Chevy Truck 3121500
1948-55 Chevy Truck 3131362 2″ core
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
3112463 39-50 Cadillac LaSalle
3113464 39-60s Cadillac
3113465 39-61 Cadillac
3113466 39-75 Cadillac
3115151 40-50,52,62,72, Cadillac; 1941 all