At Buckshot Racing #77, we specialize in delivering high-performance cooling solutions for Mercury Marine and Mercury Racing engines. Our 90-degree 1/4" NPT to 3/8" barb water outlet fitting is engineered specifically to replace the factory OEM brass elbows found on Mercury 2.0L, 2.4L, and 2.5L outboards.
Whether you’re restoring an older motor or building a competitive race setup, this fitting offers the durability, reliability, and precision modern marine engines demand.
Each fitting is CNC-machined from lightweight, high-strength aluminum and finished with a sleek black anodized coating. This not only provides a premium look but ensures outstanding corrosion resistance, even in the most demanding saltwater environments.
Unlike the factory brass versions—which are prone to corrosion and fatigue over time—our aluminum fittings are built to handle pressure and heat.
The 90-degree design allows for tight routing in compact engine bays, making it easier to manage hose runs cleanly and efficiently.
The male 1/4 NPT thread mates perfectly with Mercury’s factory thermostat housings, poppet covers, relief cover outlets, and Buckshot Racing #77 billet water outlets.
The opposite end features a 3/8” hose barb, providing a secure and universal connection point for cooling lines. These fittings are rated to handle working pressures up to 1450 PSI.
Installation is straightforward. Simply apply Teflon tape or a suitable thread sealant to the NPT threads before installation to ensure a leak-proof seal as an option. The hose barb end is designed for a snug fit—just add a quality hose clamp to lock it down for long-term, vibration-resistant reliability.
No special tools or adapters are required, and the swap from brass to aluminum takes just minutes.
This fitting is a direct replacement for several Mercury OEM parts, including 75692, 75692Q2, 75692T3, as well as 687271 and 68728.
Whether you’re upgrading worn factory elbows or building a clean, race-ready cooling setup, it offers OEM fitment with performance-driven construction.
To complete your install, we recommend pairing these fittings with Buckshot Racing #77 translucent red or blue outlet hose. These hoses are specifically chosen for their flexibility, visibility, and resistance to marine conditions. Not only do they allow you to inspect water flow at a glance, but they also bring a clean, high-performance look to your outboard rig.
For serious boaters and Mercury Racing enthusiasts alike, Buckshot Racing #77 fittings represent a critical upgrade that improves cooling efficiency, increases system durability, and simplifies maintenance. Trusted across thousands of marine setups, this is the go-to solution for anyone who wants a fitting that performs just as hard as they do on the water.
Contact Mike Hill at +1-714-697-1716 or email mike@buckshotracing77.com for technical support.