| Part# 12747MO8992. Specifications: - Piston measures 3.537.5 Finish bore is 3.540
- Compression 620
- Weighs 223 grams.
- 2.5 to 3 thou Piston to wall clearance.
**Measurements are done with our Micrometers** Parts: - Piston
- HD 2.075 Long wrist pin
- 2 spiral locks
- Complete Ring Kit 3.544XC
- Support Ring. 019011543
- 2 Ring Piston.
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