Tightening torque Kubota D650 | D750 | Zen-noh | Bobcat

Kubota tightening torques

General information on the tightening torques of all Kubota engines as an example the head bolts etc.

An important rule is that the head bolts must first be oiled, on which the correct NM can then be measured with the torque wrench. This means first cleaning the head bolts with a wire brush and then dipping them in oil. Drain this so that it cannot affect the tightening torque.

Adjustment of all Kubota D650 and D750 engines:

Valve clearance when the engine is cold:

  • 0.15 – 0.19 mm
  • .008 inch

Head studs or bolts:

  • 29.0 to 32 FT-LBS

Main bearing bolt

  • Bolt 1 15.0 to 17 FT-LBS
  • Bolt case 22.0 to 25 FT-LBS

Flywheel bolts

  • 36 to 40ft-lbs

Glow plug:

  • 15 to 18 FT-LBS(D650) + 29 to 36 FT-LBS(D750)


Tightening torque Kubota D650 | D750 | Shop4Trac

Tightening torque Kubota D650 | D750 | Shop4Trac


Matching models to this engine



  • B1200, B5200, B7001, B7100
  • B7100HST-DT
  • 220, 320 excavator


  • X220, X320

Zen Noh

  • ZB1200, ZB5200, ZB7001, ZB7100


  • Bobcat 453C, 443


  • 68mm

Kubota engine

  • D750, D750-B, D750-A



  • B6100, B6001

Zen Noh

  • ZB6001, ZB6100

Kubota engine

  • D650
Shopping cart0
There are no products in the cart!
Continue shopping