207-01-71310 2070171310 Clutch Damper Disc for Komatsu Excavator

207-01-71310 Disk Damper for Komatsu Excavator

The 207-01-71310 / 2070171310 disk damper is used for Komatsu excavator flywheel coupling and hydraulic pump drive system applications. It is also searched as a clutch damper disc, clutch plate, coupling disc, pump coupling plate or flywheel damper disc for Komatsu excavator repair.

This page focuses on 207-01-71310 as the main part number. Before ordering, the removed disc should be checked by old part number, teeth count, outside diameter, inside diameter, bolt holes, spline, mounting face and machine serial number.

Komatsu Excavator Application Reference

Common public application references for 207-01-71310 include Komatsu PC300-7, PC300-8, PC300LC-7, PC300LC-8, PC340LC-7K, PC350-7, PC350-8, PC360-7, PC380LC-7K and PC390LC-10 excavator models. These machine models should be used as checking references only. :contentReference[oaicite:1]{index=1}

Final fitment should be confirmed by the old damper disc and machine information. Similar Komatsu damper discs may look close but differ in teeth count, disc diameter, center hole, bolt pattern, friction plate layout or coupling structure.

Part Number and Catalog Checking Notes

The main part number for this page is 207-01-71310. The no-hyphen format 2070171310 is also widely used in buyer searches and supplier catalogs. Public listings commonly describe this part as a disk damper, clutch plate or coupling for Komatsu excavator applications. :contentReference[oaicite:2]{index=2}

Some catalog and supplier pages mention 16 teeth for this disc damper group. This detail should be checked against the removed part before shipment, especially when the customer only provides the machine model instead of the old disc number. :contentReference[oaicite:3]{index=3}

To keep this product page focused, 207-01-71310 should remain the primary search signal. Related model names and technical details should support fitment checking, not replace old part confirmation.

Clutch Damper Disc Function

The clutch damper disc is installed in the engine rear drive and hydraulic pump coupling area. It helps transmit torque while reducing torsional vibration and shock load between the engine flywheel side and the driven hydraulic pump system.

When the damper disc is worn, cracked or incorrectly matched, the machine may develop abnormal vibration, coupling noise, poor pump drive response or repeated coupling damage. Correct disc selection is important because the teeth, diameter, mounting holes and coupling layout must match the original system.

How to Identify the Correct 207-01-71310 Disc

• Check whether the old part number matches 207-01-71310 or 2070171310.

• Confirm the teeth count before ordering.

• Measure outside diameter and inside diameter of the removed disc.

• Compare bolt hole quantity, bolt circle and mounting face layout.

• Check the friction surface, damper spring or rubber damping structure according to the old part design.

• Confirm machine model and serial number when the old disc number is missing or unreadable.

Common Failure Symptoms

• Abnormal vibration from the engine rear side or hydraulic pump coupling area.

• Knocking, rattling or impact noise during engine start, stop or load change.

• Visible cracks, broken damping elements, worn teeth or damaged friction surface.

• Hydraulic pump drive interruption caused by disc failure or coupling damage.

• Repeated coupling failure caused by misalignment, loose bolts or incorrect disc selection.

• Excessive vibration after replacement caused by wrong teeth count, wrong thickness or incorrect mounting position.

Troubleshooting Before Replacement

Before replacing the 207-01-71310 clutch damper disc, inspect the complete flywheel coupling and hydraulic pump drive area. Damper disc failure may be caused by normal wear, but it can also be related to pump misalignment, loose mounting bolts, engine vibration or previous incorrect installation.

• Check coupling hub, flywheel side and pump input side for wear or damage.

• Inspect mounting bolts, washers and spacer parts before installing a new disc.

• Check engine mounts and hydraulic pump mounting bracket for looseness or misalignment.

• Inspect flywheel housing and pump drive housing if repeated damper failure occurs.

• Confirm whether the old disc failed from wear, misalignment, overload, loose bolts or wrong replacement part.

Installation and Maintenance Notes

• Compare the old and new disc before installation, including teeth count, diameter, thickness and bolt holes.

• Clean the mounting face and remove debris before assembly.

• Replace damaged bolts, washers or spacer parts when required.

• Tighten bolts evenly according to the service procedure to avoid uneven stress.

• Check alignment between engine flywheel side and hydraulic pump drive side before startup.

• After installation, check abnormal vibration, noise and pump drive response during low-load testing.

Fitment Check Before Ordering

To reduce wrong orders, please send the old disc number, Komatsu machine model, machine serial number, front and rear photos of the old disc, teeth count, outside diameter, inside diameter, thickness, bolt hole photo and any visible marks before quotation.

FAQ

Q: What is 207-01-71310?

207-01-71310 is a Komatsu disk damper or clutch damper disc reference used in excavator flywheel coupling and hydraulic pump drive applications.

Q: Is 2070171310 the same search format?

Yes. 2070171310 is the no-hyphen format of 207-01-71310 and is commonly used in supplier catalogs and buyer searches.

Q: Which Komatsu models are common references?

Common checking references include Komatsu PC300-7, PC300-8, PC350-7, PC350-8, PC360-7, PC380LC-7K and PC390LC-10. Final fitment should be confirmed by the old disc and machine serial number.

Q: What should be checked before ordering?

Check the old disc number, teeth count, outside diameter, inside diameter, thickness, bolt holes, spline or center hole and mounting face. Clear photos are recommended.

Q: Can this part be selected only by machine model?

No. Similar Komatsu excavator models may use different damper discs. The old part number and physical dimensions should be checked before ordering.