Indmar Impeller Replacement | How to Change A Johnson Pump Impeller

let us show you how to change your impeller in a Johnson raw water pump. Most Indmar engines come with this particular pump.

Top 3 reasons to replace raw water pump impellers annually.

Being the heart of the cooling system, it is important to keep the impeller in the raw water pump in optimum condition.

#1. the blades of the impeller are bent in the housing and can develop a "memory" making them less efficient.
#2. the rubber blades have a shelf life and as they get older become more prone to breaking apart
#3. changing the impeller also gives you a visual if there are any problems with the pump housing.

Get your replacement Johnson pump Impeller here: https://skidim.com/impeller-indmar-fo...

Fits: all Indmar and Includes gasket, Monsoon, LTR, LCR, MCX, RTP, 285 Ford, 250 Ford, Assault, 5.7 TBI, 8.1, 454, Indmar Monsoon, LTR, Ford Raptor Etc. Crusader Challenger Series 5.7 with a crank-driven pump (Axis boats). Also, fits Most: Mastercrafts late 86/87 up, Malibu's 94/95 up (will not fit Mercruiser). Most late model Supra's with Indmar engines etc.

Does NOT Fit: engines with the 302 (10-24228-1) pump on the 351 Ford or retrofitted to a GM 350, some 351 Ford engines in 1990/1991 American Skiers used the 302 pumps.

Note: A few LT1 engines around 1995 had a Jabsco pump (JAB 22120-001)