Description

When your tractor’s running rough, missing on a cylinder, or just doesn’t have the punch it used to, it’s often something as simple as worn-out spark plugs. These medium heat range plugs are built to handle the steady, moderate RPM work that most agricultural engines see—perfect for everything from daily chores to long days in the field.

What You’re Getting

Four medium heat range spark plugs designed for consistent performance in agricultural engines
14mm thread diameter and 3/4 inch reach fits a wide range of tractor and equipment engines
13/16 inch hex makes removal and installation straightforward with standard tools
Medium heat range prevents fouling in moderate-duty applications while avoiding pre-ignition in harder-working engines
TISCO quality construction that delivers reliable ignition season after season

Built for Real Farm Work

These plugs are sized and heat-rated for the kind of work most farm tractors and equipment do—steady running at moderate RPMs for hours at a time. Whether you’re running a utility tractor for chores, powering a generator, or operating stationary equipment like pumps or compressors, the medium heat range handles normal operating conditions without fouling or overheating.

Made to Last

Farm equipment runs in dusty, dirty conditions where inferior plugs fail fast. These are built with quality materials and proper electrode design to fire consistently even when conditions aren’t perfect. The standard gap and reliable construction means they’ll keep your engine running smooth through long work days.

Good to Know

Installing these is straightforward—just match the thread size and reach to your engine specs. Gap them according to your engine manual, usually around 0.025 to 0.030 inches for most farm applications. When you’re changing plugs, it’s a good time to check your plug wires and clean up the plug wells. Keep a spare set on hand since nothing’s worse than a dead cylinder when there’s work to be done.