The Buckshot Racing #77 Mercury / Mariner 2.4L V6 cylinder head gasket is designed for the later (not earliest) ~1980-1989 Mercury and Mariner 2.4 Liter two-stroke outboards, including many XR4 150 HP, 175 HP, 200 HP, and 220 HP applications.
This is a 1.2mm head gasket, measuring approximately 0.047 inches thick, built for reliable sealing in both stock and performance Mercury V6 marine engines.
This gasket is commonly associated with Mercury OEM part numbers 41246, 41247T01, and 96543. It is intended for compatible 2.4L gasket-head Mercury / Mariner V6 outboards only. This gasket does not fit Mercury 2.5L applications, so fitment should always be verified by engine serial number, cylinder head style, bore size, and original gasket shape before ordering.
Built with Victor Reinz AFM Material
Our Mercury 2.4L cylinder head gasket is manufactured using premium Victor Reinz AFM 1.2mm gasket material, a high-quality fiber-reinforced elastomeric material used in demanding engine sealing applications. AFM material is known for its sealing stability, heat resistance, compressibility, and strength under repeated heat cycling.
On a Mercury 2.4L V6 two-stroke outboard, the cylinder head gasket must seal combustion pressure while also managing water jacket exposure, clamping load, vibration, and thermal expansion. A quality head gasket helps maintain a strong seal between the cylinder head and block, reducing the risk of combustion leakage, water intrusion, and premature gasket failure.
Correct Fitment for Mercury 2.4L V6 Engines
This gasket is designed for select Mercury / Mariner 2.4 Liter V6 two-stroke outboards, including common 150 HP XR4, 175 HP, 200 HP, and 220 HP applications using the correct 2.4L head gasket pattern.
Why Head Gasket Thickness Matters
Head gasket thickness affects compression ratio, combustion chamber volume, and piston-to-head clearance. A thinner gasket can raise compression and tighten clearance, while a thicker gasket can add clearance and reduce compression. This 1.2mm / 0.047 inch gasket is commonly used where a builder wants a durable sealing surface with a moderate thickness for Mercury 2.4L V6 rebuilds, refreshes, and performance maintenance.
For any performance build, final clearance should be measured during assembly. Deck height, head machining, block condition, piston rock, gasket crush, fuel quality, timing, and intended RPM range all affect the correct final setup.
Common Part Number Cross References
Common OEM and aftermarket search references for this Mercury 2.4L V6 head gasket include 41246, 41247T01, 96543, and related Mercury / Mariner 2.4L cylinder head gasket listings.
Buckshot Racing #77 Tech Tip
Do not choose a Mercury V6 head gasket by horsepower alone. Many Mercury V6 engines share similar horsepower ratings but use different gasket patterns. Before installing, verify your engine is a 2.4L Mercury / Mariner V6, inspect both sealing surfaces, check the cylinder heads for corrosion or warpage, and torque the head bolts according to the proper Mercury service procedure.
For best results, replace both head gaskets as a matched service whenever both cylinder heads are removed.
Final Thoughts
The Buckshot Racing #77 1.2mm Mercury / Mariner 2.4L V6 Cylinder Head Gasket is a strong choice for owners rebuilding or servicing compatible XR4 150 HP, 175 HP, 200 HP, and 220 HP Mercury two-stroke outboards. Made with premium Victor Reinz AFM material, this gasket is designed to provide reliable sealing in demanding marine environments.
For Mercury 2.4L V6 owners, the right head gasket is more than a replacement part. It is part of the compression, cooling, and reliability package that keeps the engine running strong.
Contact Mike Hill at mike@buckshotracing77.com or +1-714-697-1716