Delco Part Numbers Delco Part Numbers Explained
Part number is a four-digit number with a letter or two (e.g. 1948A, 1430CA, ...); letter portion is used to distinguish between left and right or between shocks with identical bodies and different arms. The part number can be found on most shocks:
Photos below are to help with ID only, please go to individual car listings forĀ accurate pricing, prices below are approximate.
- on shocks with screw-on caps on each end of the body, on one of the endcaps, usually on the cap on the arm side of the body;
- on shocks with cover plate (held on the body with ordinary screws), the number is usually on the plate;
- some shocks have number stamped on the valve cover (looks like large, approx. 1/2 inch diameter screw or nut)
Most early shocks, before about 1930 (many, but not all are using straps for linking shock arm with the spring) do not have part number in the form described above Auburn, Buick, Cadillac, Chrysler, De Soto, Dodge, Graham, La Salle, Locomobile, Marmon, Nash, Oakland, Oldsmobile, Pontiac, Reo, Studebaker
Single arm, front and rear, stamped metal cover Buick, Chevrolet (Chevy), Chrysler, Crosley, DeSoto, Dodge, G.M.C. Truck, Graham, International, Plymouth, Pontiac, Studebaker, Yellow
Single arm, front and rear, V-shaped body, arm and shaft one piece, part # on a valve cover, near the bottom of the V Buick, Cadillac, Duesenberg, La Salle, Stutz
Single arm, front and rear, part # on a screw-on endcap Buick, Cadillac, Chevrolet (Chevy), Chrysler, DeSoto, Dodge, G.M.C. Truck, International, LaSalle, Oldsmobile, Packard, Plymouth, Pontiac, Reo, Studebaker, White, Yellow
Double arm, front, part # on a screw-on endcap Buick, Cadillac, Chrysler, DeSoto, Dodge, LaSalle, Nash-Lafayette, Oldsmobile, Packard, Plymouth, Pontiac
Double arm, front, part # on a screw-on endcap Buick, Cadillac, LaSalle, Nash-Lafayette, Oldsmobile, Packard, Pontiac
Single arm, rear, stamped metal cover, part # on the cover Buick, Chevrolet (Chevy), Oldsmobile