Description Sherwood G8005 is a bronze raw water (seawater) engine cooling pump end with neoprene impeller, featuring 3/4″ inlet and outlet ports; compatible with Kohler marine generator models 4EFKD, 5EKD, 6EFKD, 7.5EKD, 8EFKD, and 10EKD, and replaces Kohler part GM63535. Constructed with corrosion-resistant bronze body and high-chrome nickel stainless-steel slotted drive shaft; self-priming and serviceable.