Piston Rings Mercury / Mariner 135 - 200 Hp 90-91 Standard OEM#: 39-18487A12 OEM#: 39-18487A12 39-96170A2 S18-3924 SKU 200-10

Piston Rings Mercury / Mariner 135 - 200 Hp 90-91 Standard OEM#: 39-18487A12

SKU: 200-10

This high-quality replacement part is designed for marine and jetski applications, offering exceptional performance and reliability.

Key Features:
- OEM Equivalent: Replaces Yamaha part number 39-18487A12
- Additional OEM Numbers: 39-18487A12, 39-96170A2, S18-3924
- Durable Construction: Manufactured with premium materials to meet or exceed OEM specifications
- Color-Coded: 3.375"
- Brand: WSM - the leading aftermarket and trusted specialist in marine engine components

Compatible With: Mercury 6 Cyl 3.125 Bore 2L 135 (1990-1991), Mercury 6 Cyl 3.125 Bore 2L 150 (1990-1991), Mercury 6 Cyl 3.375 Chrome Bore 2.4L 175 (1990-1991), Mercury 6 Cyl 3.375 Steel Bore 2.4L XR-4 150 (1990-1991), Mercury 6 Cyl 3.375 Steel Bore 2.4L XR-4 175 (1991), Mercury 6 Cyl 3.501 Bore 2.5L 200 (1991), Mercury 6 Cyl 3.501 Bore 2.5L EFI 175 (1990-1991), Mercury 6 Cyl 3.501 Bore 2.5L EFI 200 (1991)

Note: Always verify part numbers and compatibility with your specific engine model before installation.