Yellow Jacket 93047 Ritchie Pump Drive Coupling

I just installed this 93047 coupling on my older YJ 6-CFM pump and it is now up and running again. The old coupling was original to the pump and had a splined plastic tube setup, similar to what JB uses on their pumps, but a little longer. This new YJ coupling design uses a rubber spider in between the metal halves instead of the plastic tube and fit my pump perfectly.

better than the original part it was plastic this one is metal

Exactly as described. Fast shipping. Fixed the vacuum pump to perfection.

Much improved over original coupling. Easy to install.

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 :)

Great value and heavy duty!

works great

Pump came with a metal and plastic coupling. The plastic got brittle with age and broke. This coupling is one heavy duty metal assembly which is easy to install and will never break. Highly recommend this product!

Better than factory part

My vacuum pump original coupling finally let go. This was a nice quality and quick to install replacement and took about 20 minutes to change! Now its back in action.