Mercury PISTON RING SET (118-3902)

The Sierra PISTON RING SET (18-3902) is compatible with Mercury marine applications. Mercury Marine 39-45155A12, 39-78816A12, and Mallory 9-54217 are interchangeable with this part.

This high-quality piston ring set provides long-lasting, resilient, and dependable service even in harsh marine conditions. Its design is for use on 3-ring pistons with a standard bore size of 2.875.

It is of excellent precision design to meet the required marine-grade quality standards.

Key Features:

• It includes 4 of 18-3902 = 1 of 39-78816A12 in the package.
• It comes with three (3) piston rings.
• High-quality, long-lasting, and cost-effective product
• It is resistant to wear and strain.
• Evey Sierra's product meets or exceeds the specifications of the original equipment part it replaces.
• An engineering precision with high-quality marine-grade materials
• The overall design assures that it satisfies the highest quality standards.
• It uses high-quality materials in the construction to ensure durability, dependability, and longer service life.

Specifications:

• SKU: 18-3902
• UPC: 030999316967
• Weight: 0.08 LBS
• Bore Standard: 2.875"
• Bore Actual: Standard
• Brand: SeaStar Solutions
• Condition: New

BORE SIZE: 2.875/STD, For: 3 Ring Pistons

This product replaces:

47-3902, AP1818, 30999316967, 3099931696, 9-54217