NOTES:

This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials using up-to-date equipment, it ensures everlasting reliability and enduring value. This product is distinguished by total quality assurance, unsurpassed by anybody else.

OEM Replacement Numbers: 27-190503, 27-19050

• All gaskets utilize the latest in gasket making technology
• Top quality gaskets with lower aftermarket prices
• Expertly crafted from the highest grade materials
• Made in Italy

Brand: WSM
Part Number: 521-31

Fitment:

• 1991-1999 Mercury 6 Cyl 3.125 Bore 2L 135
• 1991-1999 Mercury 6 Cyl 3.125 Bore 2L 150
• 1991-1999 Mercury 6 Cyl 3.375 Chrome Bore 2.4L 175
• 1991 Mercury 6 Cyl 3.375 Steel Bore 2.4L XR-4 150
• 1991 Mercury 6 Cyl 3.375 Steel Bore 2.4L XR-4 175
• 1991-1999 Mercury 6 Cyl 3.501 Bore 2.5L 200
• 1992-1999 Mercury 6 Cyl 3.501 Bore 2.5L EFI 150
• 1991-1999 Mercury 6 Cyl 3.501 Bore 2.5L EFI 175
• 1991-1999 Mercury 6 Cyl 3.501 Bore 2.5L EFI 200
• 1992-1999 Mercury 6 Cyl 3.501 Bore 2.5L Jet 105
• 2006-2013 Mercury 6 Cyl 3.501 Bore 2.5L Jet 110
• 1992-1999 Mercury 6 Cyl 3.501 Bore 2.5L Jet 140
• 1998-2012 Mercury 6 Cyl 3.501 Bore 2.5L Optimax 135
• 1998-2014 Mercury 6 Cyl 3.501 Bore 2.5L Optimax 150
• 2004-2014 Mercury 6 Cyl 3.501 Bore 2.5L Optimax 175
• 1992-1998 Mercury 6 Cyl 3.501 Bore 2.5L XR6 150
• 1992-1995 Mercury 6 Cyl 3.501 Bore 2.5L XRI 200
• 2010-2018 Mercury 6 Cyl 3.6265 Bore 3L Pro XS 150
• 2008-2018 Mercury 6 Cyl 3.6265 Bore 3L Pro XS 175

Note: Image is for reference only, actual product may vary slightly.