Impeller Kit for Pleasurecraft Marine PCM RP061022 Sierra 18-8926 Mallory 9-45718 Replace Part Number:Pleasurecraft R061022, RP061022, Sierra 18-8926, 188926, Mallory 9-45718, 945718 Specifications:Width: 2" (50.8 mm)Diameter: 2-1/4" (57 mm)Shaft: 5/8" (16 mm)Drive: Double Flat Material: Neoprene Silhouette: 10 blades Applications:Fit For Pleasurecraft Marine PCM 5.0, 5.7, 6.0 & 8.1 models with serpentine belt driven water pumps. Will not for V-belt systems.PCM RP061022 impeller service kit commonly used on newer PCM Engines. Known to be used on Excalibur 330, EX343, ZR6, ZR409, 5.0L Pro Sport, and GM 5.0L, 5.7L & 6.0L with a serpentine belt.Fit For Pumps:RA057032 6.0LRA057034 5.7LRA057035 8.1LRA134071 Bearing Housing Assembly Impeller Repair Kit includes: impeller, mounting o-ring, and 3 screw o-rings.Minor Repair Kit RP061022 Include:Impeller R061022O-Ring, Housing R047242 (1)O-Ring, Bolt R047243 (3)