1786543 Ring Set-Std Fits Caterpillar Models
1786543 Ring Set-Std Fits Caterpillar Models
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One New Aftermarket Replacement Piston Ring Set (Standard) for Caterpillar (Cat) Excavators
This standard (STD) bore piston ring set is a direct replacement for Caterpillar OEM part number 178-6543 / 1786543. It fits the Mitsubishi-sourced 3064, 3066, and C6.4 diesel engines used across a wide range of Cat hydraulic excavators. The set includes a compression ring, second ring, and oil ring per cylinder.
Specifications
- Piston Bore Diameter: 102mm (Standard / STD)
- Engine Compatibility: Caterpillar 3064, 3066 (Mitsubishi S6K / S6KT)
- Ring Configuration: Compression ring, second ring, oil ring
Compatible Models
Caterpillar (Cat) Excavators: 311C, 311D LRR, 312C, 312C L, 312D, 312D L, 313D, 314C, 314D CR, 314D LCR, 315D L, 318C, 318D L, 319C, 319D, 319D L, 319D LN, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 321C, 321D LCR, 323D L, 323D LN, 323D SA
Caterpillar (Cat) Mobile Hydraulic Power Units: 323D L, 323D LN
Replaces Part Number(s):
1786543, 178-6543, 34317-09010
New aftermarket replacement part - not remanufactured, not used.
