134-12-61131 1341261131 Clutch Damper Disc for Komatsu Bulldozer D61 D65

134-12-61131 Damper Disc Ass'y for Komatsu D61 D65

The 134-12-61131 / 1341261131 damper disc ass'y is used for Komatsu power train flywheel coupling and drive system applications. It is also searched as a clutch damper disc, damper disc, coupling disc, clutch plate or disk damper for Komatsu dozer and crawler equipment service.

This page focuses on 134-12-61131 as the main part number. Before ordering, the removed disc should be checked by old part number, outside diameter, inside diameter, teeth count, thickness, bolt holes, center hole, mounting face and machine serial number.

Komatsu D61 D65 Application Reference

Common public application references for 134-12-61131 include Komatsu D61E-12, D61EX-12, D61PX-12, D63E-12, D65EX-15E0, D65PX-15E0, D65WX-15E0, D68ESS-12 and D68ESS-12E0 equipment groups.

These model names should be used as checking references only. Damper disc configuration can vary by machine serial number, power train layout, flywheel coupling arrangement and previous repair history.

Do not select this product by model name alone. The old disc number and physical dimensions are more reliable than the model reference when confirming fitment.

Part Number and Catalog Checking Notes

The main part number for this page is 134-12-61131. The no-hyphen format 1341261131 is also used in buyer searches and supplier catalogs.

Public catalog information describes 134-12-61131 as DAMPER DISC ASS'Y for Komatsu. This confirms the product type as a damper disc assembly rather than a flywheel housing or engine front vibration damper.

Some supplier listings may mention 207-01-71310 together with 134-12-61131. Because 207-01-71310 is commonly used for a different Komatsu excavator damper disc page, it should be treated only as a catalog checking reference unless the old disc confirms the same configuration.

Damper Disc Function

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

When the damper disc is worn, cracked or incorrectly matched, the machine may develop abnormal vibration, coupling noise, unstable power transfer or repeated coupling damage. Correct selection is important because OD, ID, teeth count, center hole and bolt pattern must match the original system.

How to Identify the Correct 134-12-61131 Disc

• Check whether the old part number matches 134-12-61131 or 1341261131.

• Measure outside diameter and inside diameter before ordering.

• Confirm teeth count, center hole and coupling center structure.

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

• Check friction surface, damping structure and disc thickness according to the removed part.

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

Common Failure Symptoms

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

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

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

• Poor torque transfer caused by damaged disc or worn coupling parts.

• Repeated coupling failure caused by misalignment, loose bolts or incorrect replacement part.

• Excessive vibration after replacement caused by wrong diameter, wrong teeth count or incorrect mounting direction.

Troubleshooting Before Replacement

Before replacing the 134-12-61131 damper disc, inspect the complete flywheel coupling and power train drive area. Damper disc failure may be caused by normal wear, but it can also be related to drive misalignment, loose mounting bolts, engine vibration or previous incorrect installation.

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

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

• Check engine mounts and drive mounting brackets for looseness or misalignment.

• Inspect flywheel housing and coupling 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 OD, ID, thickness, teeth count 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 side and driven side before startup.

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

Information Needed 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, outside diameter, inside diameter, thickness, teeth count, bolt hole photo and any visible marks before quotation.

FAQ

Q: What is 134-12-61131?

134-12-61131 is a Komatsu damper disc ass'y reference used in flywheel coupling and power train drive applications.

Q: Is 1341261131 the same search format?

Yes. 1341261131 is the no-hyphen format of 134-12-61131 and is commonly used in catalogs and buyer searches.

Q: Which Komatsu models are common references?

Common checking references include Komatsu D61E-12, D61EX-12, D61PX-12, D63E-12, D65EX-15E0, D65PX-15E0, D65WX-15E0 and D68ESS-12. Final fitment should be verified by the old disc and machine serial number.

Q: Can 207-01-71310 be used as a cross reference?

Some supplier listings mention 207-01-71310 together with 134-12-61131, but it should be treated only as a catalog checking reference unless the old disc confirms the same dimensions and mounting layout.

Q: What should be checked before ordering?

Check the old disc number, OD, ID, thickness, teeth count, center hole, bolt holes, mounting face and Komatsu machine serial number. Clear front and rear photos are recommended.