Water Pump Repair Kit – Fits Yamaha 6–15 HP (Replaces 63V-44301-00, 63V-W0078-00) 50HP Blue) Dimensions 10-1/4" × 8-1/4"

Blue) Dimensions 10-1/4" × 8-1/4" (260 mm × 210 mm) Weight 1

What's the main difference between this aftermarket kit and an OEM one

1 x Impeller (47-89981/18-3039)

and belt tension

Water Pump Repair Kit – Fits Yamaha 6–15 HP (Replaces 63V-44301-00, 63V-W0078-00) 50HP Blue) Dimensions 10-1/4" × 8-1/4"Product Details This Water Pump Repair Kit Fits Yamaha 615 HP (Replaces 63V 44301 00, 63V W0078 00) provides all essential components to restore your engines cooling system. It is designed for Yamaha 4 Stroke engines including 6 HP, 8 HP, 9. 9 HP, 13. 5 HP, and 15 HP models (19982008), as well as 2 Stroke 9. 9 HP and 15 HP models (19982008). This kit serves as a direct replacement for Yamaha part numbers in the 63V W0078 00 through 63V W0078 04