PCM RP061017 Impeller Service Kit. Most commonly found on GM 350, 454, 8.1 PCM Engine's up to 2004. Also Found on PCM crank driven V-Belt or crank driven PCM Excalibur & 5.0L Sport. DOES NOT work with 04+ Serpentine belt pumps.
Kit Includes Impeller, O-Ring, & Paper Gasket
Impeller Measures 1-5/8" Tall
Impeller Measures 2-5/8" in Diameter
Impellers should be replaced Every 100 hours or every other year in the spring.
Don't forget to carry a spare!