For 1973 & later Water Circulating Pump for GM V6 & V8 Small Block Engines with Stamped Or Composite Timing Covers

also crosses with:
Sierra: 18-3599-2
API Marine: WP1500
Barr: MC-2-17437
Crusader: 20318
GLM: 15201
Indmar: S551045
Mallory: 9-42606
MES: WP453ML
Pleasurecraft: RA057018