Cook Mfg. Relays
Cook Mfg. Relays: Purpose-Built for Marine Electrical Systems
When it comes to keeping a boat's power trim and tilt system operating reliably, few names carry as much authority as Cook Manufacturing Corporation. Founded in Duncan, Oklahoma in 1956 and growing into one of the most respected names in marine hydraulic and electrical accessories, Cook Mfg. has spent decades engineering components specifically for the demanding conditions found on the water. Their relays are a natural extension of that expertise — precision electrical switching components built to serve the same tilt, trim, and jack plate systems that Cook helped pioneer.
What Makes a Marine Relay Different?
A relay is an electromechanical switch that allows a low-current control signal — such as the press of a trim button at the helm — to safely activate a high-current circuit, like the motor that raises or lowers an outboard engine. In a marine environment, this seemingly simple job becomes considerably more complex. Exposure to water, salt spray, vibration, and wide temperature swings can all degrade standard automotive-grade relays quickly. Cook Mfg. designs its relays with these real-world conditions in mind, focusing on robust construction and dependable switching performance where it matters most.
The Cook Mfg. Relay Lineup
The flagship Cook Mfg. relay offering is the 80-Amp SPDT 5-Pin Trim & Tilt Relay (Part #7493), designed for 12V DC marine applications. This single-pole double-throw (SPDT) configuration is ideally suited for reversing-motor circuits like power trim and tilt units found on outboard engines and OMC sterndrives. The relay pairs with an interlocking relay socket and wiring harness, making installation straightforward and ensuring a secure, vibration-resistant connection — a critical detail on a vessel subject to constant engine vibration and wave impact.
The 80-amp rating gives this relay the headroom needed to handle the inrush current demands of hydraulic trim motors without nuisance tripping or contact degradation over time. Whether you are replacing a failed relay on a CMC Power-Lift jack plate or servicing a trim system on a bass boat, flats skiff, or offshore center console, the Cook Mfg. #7493 relay is a go-to OEM-style replacement part trusted by marine technicians and DIY boaters alike.
Why Choose Cook Mfg. for Your Relay Needs?
Cook Manufacturing Corporation built its reputation as the market leader in transom jacks and tilt & trim systems, which means their relay components are engineered to integrate seamlessly with the very hydraulic systems they helped design. Choosing a Cook Mfg. relay is not just about finding a compatible part — it is about sourcing an electrical component from a brand that understands the full system it operates within. That depth of application knowledge translates into relays that are correctly rated, properly packaged with matching hardware, and validated for marine duty cycles.
Whether you are a professional marine technician performing a scheduled service or a boat owner tackling a trim system repair yourself, Cook Mfg. relays offer a direct-fit solution backed by a brand with decades of marine industry experience. Explore the full Cook Mfg. brand page for their complete range of marine accessories, or browse all marine relays to compare options across top manufacturers.