At DMG Motorsports, we present the Vertex Water Pump Rebuild Kit 821943 (680-1943) — a complete, no-guesswork solution for restoring cooling system performance on your ATV. Vertex built this kit to take the frustration out of tracking down individual gaskets, seals, and bearings for a water pump overhaul by packaging everything needed into a single box. Designed to fit applications such as the Honda TRX420 and TRX500 lineups, this kit gives DIY mechanics and shop techs everything required to stop leaks, prevent overheating, and get the cooling system running like new again. Backed by Vertex's reputation for precision-manufactured gaskets and seals, this kit is engineered to meet or exceed OEM specifications so you can trust the repair the first time.

Features:

• Complete rebuild kit includes the inner clutch cover gasket and water pump cover gasket needed for a full water pump service
• All bearings, seals, and washers required to rebuild the water pump are included in one convenient kit
• Mechanical seal included, eliminating the need to source this critical wear component separately
• Manufactured to meet or exceed OEM quality standards for reliable, long-term sealing performance
• Fits Honda TRX420 and TRX500 ATV models equipped with the corresponding OEM water pump
• Genuine Vertex part number 821943 / 680-1943, engineered specifically for accurate fitment
• Simplifies water pump service by consolidating every small part needed into a single purchase

Fitment