This complete water-pump maintenance kit contains the parts you need to service the cooling system on Mercury and ForMariner outboard engines. It is designed to restore reliable water circulation, minimize downtime, and fit with original equipment standards. Key benefits Complete kit: Includes a robust impeller, gaskets, seals and a key so you have all items required for a pump rebuild in one package. Reliable construction: Components are made from high‑strength materials built to withstand demanding marine conditions and maintain performance under load. OEM compatibility: Uses authentic ForMercury Marine parts for a correct fit and predictable replacement of worn water‑pump elements. Faster repairs: Provides the essential components needed for efficient installation, reducing repair time and the risk of missing parts during service. How this solves common problems Prevents overheating by restoring proper water flow through the engine cooling system. Avoids second visits or extra parts orders because the kit supplies the impeller and all mating seals and gaskets. Reduces the risk of leaks and premature failure by using matching OEM components and correctly sized seals. Function, compatibility and materials Function: Rebuilds the water pump assembly to renew impeller-driven seawater circulation for engine cooling. Compatibility: Intended for use with Mercury and ForMariner outboard engine water‑pump systems; uses authentic ForMercury Marine replacement parts for fitment. Materials: High‑strength impeller material and matched gaskets/seals designed for marine exposure and long service life. Typical applications Pre‑season maintenance: Replace worn impeller and seals before a boating season to prevent failures on the water. Field repair during a cruise: Carry the kit aboard to perform a quick pump rebuild and restore cooling after impeller damage or blockage. Routine service or repower: Use the kit when overhauling the lower unit or during scheduled cooling‑system maintenance. What to expect in use Straightforward installation with all necessary components included. Restored cooling performance and reduced risk of overheating. OEM‑grade fit and sealing to maintain engine reliability. If you need to confirm fit for a specific engine year or model, check your engine manual or parts reference to match the kit to your Mercury or ForMariner outboard.