Johnson Pump Puller f/Impeller 821BT

I use this to pull the raw water impellers from my Yanmar 6LYA-STP diesels. It comes with a 40mm long M10x1.5 bolt. This will pull an impeller out only a half inch or so. I replaced the bolt with one 80mm long to more fully extract my 80mm deep impellers. Note that this will only work on newer style impellers that have splines threaded for it.

Worked well, but for the price you shouldn’t have to go out and buy a longer bolt to get the impeller all the way out.

Jacking bolt was too short

Wrong size short bolt bad product.

It threads into the impeller. We purchased a longer bolt to completely remove the impeller from the shaft. We used the threaded bushing during installation of the new impeller! Easy, time and cost effective!