Those GM numbers may cross over. RockAuto sometimes has cross-over numbers.

The GM Cap # comes up with a STANDARD MOTOR PRODUCTS DR428
OEM / Interchange Numbers: 12338676, 1924247, 1924248, 1931512, 3141430, J3141430

Last edited by klhansen; 06/28/2026 1:08 AM. Reason: added info
Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.