Uflex Mach 36 Mercury Gen II Control Cable, 17 ft

If your Mercury Generation II controls have gotten stiff, notchy, or just plain hard to move, a tired control cable is usually the culprit. This is the Uflex Mach 36, a 17 foot replacement built to drop straight into Mercury Gen II control systems. It handles the throttle or the shift run between your helm control and the engine, and when it's worn out, everything downstream feels worse than it should.

Here's the thing about control cables. They're one of those parts nobody thinks about until the day shifting into reverse takes two hands and a bad word. The inner core rides inside a lined conduit, and over a few seasons of salt, sun, and vibration that liner dries out and the core starts to drag. You'll feel it as heavy throttle, sloppy detents, or a shift that won't quite seat. Swapping in a fresh cable brings back that light, positive feel you forgot the boat used to have.

This one is 17 feet, measured end to end, which suits a lot of single-engine outboard and sterndrive rigs in the 20 to 24 foot range. That said, don't buy by boat length. Measure the cable that's coming out, or route a string along the exact path the old cable takes from the control to the engine and add a little slack for the motor to tilt and turn without pulling the run tight. Getting the length right is the whole game. Too short and it binds at full lock. Too long and you've got a loop of cable to stuff somewhere it won't chafe.

Because it's a Mach 36, the ends are made for Mercury Gen II. The Gen I and Gen II cables share the same engine end, but the control end is different, so you have to match the generation of your control head. If you're not sure which you've got, pull the old cable and compare the fitting at the control end before you order. It saves a return and a weekend.

Install is straightforward for anyone comfortable working around the helm and the engine. Disconnect the battery first. Pop the control cover, note how the old cable seats in the barrel and trunnion, and route the new one along the same path. Support long runs every foot or so on a console boat so the core doesn't kink at the first sharp bend. Grease both ends before you seat them, run the cable through any conduit before final mounting, and that keeps saltwater out of the fittings where corrosion likes to start. Set the shift detents once everything's connected and cycle it a few times to make sure throttle and shift both hit their stops clean.

One honest note. On a fishing boat that piles up hours, cables like these can stretch a hair after a couple of seasons, so it's worth re-checking your shift adjustment at the start of each year. That's normal wear, not a defect, and a two-minute adjustment keeps everything crisp. Pair it only with Mercury Gen II throttle and shift heads. Running a Gen II cable into an older control adds friction and wears the core out early.

Uflex has been building steering and control gear for boats a long time, and the Mach series is their bread and butter for engine control. If you're replacing a worn Mercury Gen II cable, or rigging a repower and you want a clean, reliable run from the helm to the powerhead, this is the honest, no-drama choice. Order the length that matches your actual routing, grab one for throttle and one for shift if you're doing both, and you'll be back on the water with controls that feel new.