Yellow Jacket 93047 Ritchie Pump Drive Coupling

Works great!

perfect replacement

My older Yellow Jacket vacuum pump stripped out the existing drive coupling. The original design was fairly poor. A plastic (or similar material) bushing connected the motor drive to the pump drive via small ridges on the inside of the bushing which lined up with ridges on the drives. Excessive heat, age or both caused the plastic to warp and crack which resulted in no more vacuum pump. I was very happy to see this kit. It replaces both the drive connections and replaces the cheesy plastic bushing with a much more positive and robust connection/locking system. Hard to describe unless you see it, but reminds me of Tetris :)

My yellow jacket 6cfm pumps works again.

Yellow Jacket is a good product BUT when repairing a vacuum pump, you typically need both pieces shown. Unfortunately what ships is one piece, so I returned it and used a less expensive one piece plastic sleeve which fits over both drive ends. I would have preferred the metal Yellow Jacket sleeves but the plastic will last for a few years

Great value and heavy duty!

Much improved over original coupling. Easy to install.

Fast shipping, exactly as described

As described.

works great