Kubota KH1 excavator backhoe engine/pump coupler

koke · Jun 20, 2020

Howdy - I have an old (antique?) KH 1 excavator. It finally shredded the coupling between the engine and the hydraulic pump. Anyone know where to get a replacement? Dealer says there not made anymore! thanks for any help!

dfkrug · Jun 21, 2020

Do you have pix? I would custom-make a frame to support a Lovejoy-style coupler, if there is room. There are also off-the-shelf frames, but they will need modification to fit your engine, most likely.

koke · Jan 13, 2021

dfkrug said:
Do you have pix? I would custom-make a frame to support a Lovejoy-style coupler, if there is room. There are also off-the-shelf frames, but they will need modification to fit your engine, most likely.

Hey, just wanted to tell you and anyone else seeing this that I found a perfect fit doughnut coupler in Korea, and was able to buy the part for $100,less then a third of the Kubota list price, and I had it in hand in 1 day, and it bolted right onto the old flanges and fit perfectly, and the old KH1 is back together and still digging!

koke · Jan 13, 2021

Here痴 a pic.

mcfarmall · Jan 14, 2021

Awesome! Thanks for the update!

Henro · Jan 14, 2021

koke said:
Hey, just wanted to tell you and anyone else seeing this that I found a perfect fit doughnut coupler in Korea, and was able to buy the part for $100,less then a third of the Kubota list price, and I had it in hand in 1 day, and it bolted right onto the old flanges and fit perfectly, and the old KH1 is back together and still digging!

Looks perfect!

Can you share where you got/how you found the coupler?

Also love to see a picture of your excavator if you have one handy!