Description
SIERRA 79.38 mm Standard-Bore Mercury/Mariner Piston Ring Set – 18-3921
The SIERRA 79.38 mm Standard-Bore Mercury/Mariner Piston Ring Set – 18-3921 is a fit-specific marine service component for Selected Mercury/Mariner outboard engines. It is intended to replace the corresponding OEM service part where the listed interchange and engine application match. Confirm the engine model, serial/year range and OEM number before installation.
- Standard-bore piston ring set for selected Mercury/Mariner outboards
- Bore diameter: 79.38 mm
- Direct aftermarket interchange for Mercury 39-93481A12
- Suitable for engine repair and piston/ring service
- Verify bore condition, piston type and OEM number before installation
Specifications
- Manufacturer: Sierra
- Part Number: 18-3921
- Product Type: Piston Ring Set
- Application: Selected Mercury/Mariner outboard engines
- Bore Diameter: 79.38 mm
- OEM / Aftermarket Interchange: Mercury 39-93481A12; GLM 14240; Mallory 9-54233; Wiseco 3125KD
- UPC: 030999621665
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