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4D105 Part Numbers

dcara

Well-Known Member
Joined
May 12, 2009
Messages
50
Location
East of Dallas Texas
Occupation
Engineer
I have a Model 4D105-3 motor in my Komatsu D31S-16. The motor part number is, 63HP2350, sn 44393. Does anyone have the part numbers for

crankshaft
rod
piston
 
Joined
Aug 5, 2023
Messages
9
Location
Malaysia
Base on your sn 44393, the engine suppose to be 6D95 ealier modal or 6D102 for later.

Suspect Engine has been replaced to 4D105-3, which is suppose to be lower sn.

In any events, for 4D105-3 Piston, one of the Part Number is 6130-32-2110. Better to confirm the Piston Measurements during enquiry.
 
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