The Driveshaft Housing Gasket from Buckshot Racing No. 77 is a precision-engineered sealing component designed for Mercury outboard motors, specifically those using high-performance two-stroke EFI and DFI V6 configurations.
Serving a vital role in the exhaust can water passage sealing system, this gasket ensures a leak-free connection between the tuner plate and driveshaft housing.
It is compatible with a wide range of Mercury V6 outboards from 115 to 225 horsepower, including the 2.0L (135, 150, 175 HP), 2.4L (200 HP Bridgeport and Laser EFI), and 2.5L (200, 225 HP, 225 Pro Max) and (245 HP Carb, 260 EFI, 280 ROS, 300 Drag).
These outboard engines, commonly used in performance boating, bass boats, offshore rigs, and racing setups, rely on exact gasket geometry to maintain exhaust flow, cooling water routing, and optimal back pressure for engine performance.
The Driveshaft Housing Gasket from Buckshot Racing No. 77 cross-references with numerous OEM and aftermarket part numbers, including Mercury 508842, 99173, 991731, 991732, 991734, as well as Sierra 18-2511, GLM 32510, 510-30, and Mallory 9-60407.
This makes it a highly adaptable solution for many generations of Mercury outboards, from early 1980s 2.0L 150 XR2 engines to later-model 2.5L 225 DFI and 200 EFI variants. It is fully compatible with 6-cylinder configurations in both standard and offshore midsections, making it a dependable choice for everything from classic XR2, XR4, and XR6 models to high-output Pro Max and ROS mids.
Constructed from high-compression, heat-resistant material, this gasket is engineered to withstand the thermal stress, vibration, and pressure cycling that occur in high-RPM two-stroke environments.
It features reinforced bolt hole patterns for precise alignment and durable sealing, helping to preserve the integrity of critical engine systems such as reed valve timing and fuel mixture regulation.
By maintaining the OEM port geometry and matching Mercury’s original housing designs, the Driveshaft Housing Gasket from Buckshot Racing #77 offers technicians and engine builders a reliable, performance-grade solution for rebuilds, retrofits, or maintenance work on Mercury V6 two-stroke outboards across the 2.0, 2.4, and 2.5 liter platforms.
Contact Mike Hill at +1-714-697-1716 or email mike@buckshotracing77.com for technical support.