Torque for Fuel Injector in V4000A Engine

AshTreeBlues

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Kubota M7500DT
Nov 19, 2025
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Can anyone provide the torque values for installing fuel injector assembly in M7500DT V4000A engine? They mount with two (2) 8mm studs. Also any other torque specs related to the fuel injectors
 

JohnDB

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M4500DT with FEL, back blade, Someca K28 hay mower, drag broom, post driver
Jun 9, 2018
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Welcome to the forum :)
Odd that there's not that info. in the tractor WSM, I had a look too. Perhaps someone has a standalone V4000 manual (V4000-B manual is Kubota code no. 07909-70103) or product service bulletin with that info... .

Subject to others' better info or ideas, because the stud is into cast iron (?) I'd use the torque Kubota references for the lowest grade M8 bolt - 18-20 N.m. and check for leakage.
 
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whitetiger

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Kubota tech..BX2370, RCK60, B7100HST, RTV900 w plow, Ford 1100 FWA
Nov 20, 2011
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Here is page 18 from the V4000 WSM: Nozzle holder, M8 x 1.25, 17.4 to 20.3 ft-lbs


Screenshot (49).png
 
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