6261-31-2030 Piston Ring Set

The 6261-31-2030 Piston Ring Set is a piston ring assembly for Komatsu equipment using SAA12V140E and SAA6D140E engines. It is installed in the piston ring grooves and is identified for use per cylinder. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is intended for engine service applications where the piston ring assembly is replaced as a unit for one cylinder. The available product data identifies the assembly by part number 6261-31-2030 and specifies its application to the Komatsu engine and machine models listed below.

Fitment

• Komatsu SAA12V140E engine
• Komatsu SAA6D140E engine
• Komatsu WA500 equipment with the specified engine application

Fitment is determined by the engine model and the applicable cylinder configuration. Before installation, the engine identification and the removed part number should be checked against 6261-31-2030. The available data does not specify a complete serial-number range or individual WA500 machine modification, so these details are not included.

Specifications

The available product information does not state the number of rings in the assembly, ring thickness, radial wall thickness, material, coating, cylinder bore size, ring gap, or package contents beyond the per-cylinder piston ring assembly. These parameters should be verified from the engine service specifications before fitting.