Diesel Engine Parts 6735-01-1310 Crankshaft for Komatsu 6D102

Why This Crankshaft Requires Part-Number Confirmation

Limited public fitment data: no stable public source was found to confirm a specific machine model for this part number, so the old part number and engine plate should be checked first.

Engine-family risk: similar engine names or machine models may still use different crankshafts depending on serial range, crankshaft end design and bearing size.

Dimension dependency: main journal, rod journal, gear-end and flywheel-end details are more reliable than a general machine model description.

Photo confirmation: clear photos of the old crankshaft and engine plate are strongly recommended before quotation.

Data to Check Before Ordering

Old crankshaft marking: check whether the original crankshaft has a visible stamped, cast or labeled number matching 6735-01-1310.

Engine plate: provide the exact engine model and serial number, not just the machine model.

Journal measurements: measure the main journals and rod journals, and confirm whether the crankshaft is standard size or has been reground.

End structure: photograph the gear end and flywheel end to compare bolt pattern, keyway and flange design.

Related overhaul parts: check main bearings, connecting rod bearings, thrust bearings and oil pump condition during replacement.

Common Failure Clues During Engine Rebuild

Scored journals: deep scratches or heat marks on the journal surface may indicate lubrication failure or bearing damage.

Uneven bearing wear: worn or damaged bearing shells should be checked together with crankshaft runout and oil passage condition.

Low oil pressure history: if the engine previously ran with low oil pressure, inspect the oil pump, pickup tube, oil filter and oil passages before installing a replacement crankshaft.

Metal debris: metal particles in the oil pan or filter can damage a new crankshaft quickly if the lubrication system is not cleaned.

Ordering Information

For faster confirmation, please send the old crankshaft marking, engine plate, machine model, machine serial number, main journal measurement, rod journal measurement, gear-end photo and flywheel-end photo. These details help confirm whether 6735-01-1310 matches the actual engine configuration before quotation.