When a radiant heater won’t start or struggles to stay running, most people assume the problem is major—or expensive. In reality, one of the most common causes of heater failure is a worn or failing spark plug. That’s why keeping a reliable replacement like the Mi-T-M Part #68-3151 Spark Plug on hand can save you time, money, and frustration.
Mi-T-M 68-3151 Spark Plug
This genuine Mi-T-M replacement spark plug is designed specifically for 125,000 BTU radiant heaters, ensuring proper fit, reliable ignition, and consistent performance. Unlike generic alternatives, OEM Mi-T-M parts are built to meet the exact specifications of your heater. That means better starts, smoother operation, and fewer unexpected shutdowns—especially when you need heat the most.
Over time, spark plugs naturally degrade due to high temperatures, carbon buildup, and normal wear. As performance drops, you may notice hard starts, delayed ignition, or inconsistent heating output. Replacing the spark plug at the first sign of trouble helps restore efficiency and prevents strain on other components of your heater.
The Mi-T-M 68-3151 spark plug is also designed for quick and straightforward installation, making it an ideal maintenance part for both professionals and DIY users. Swapping out an old spark plug takes only minutes and can instantly bring your heater back to life—no costly service calls required.
When you purchase replacement parts from us, you’re not just buying a component—you’re investing in reliability. We carry new, genuine Mi-T-M parts, carefully selected to keep your equipment running safely and efficiently. Our product listings are clear, accurate, and backed by knowledgeable support, so you can order with confidence.
If your 125,000 BTU radiant heater is showing signs of ignition trouble—or if you simply want to stay ahead of routine maintenance—the Mi-T-M Part #68-3151 spark plug is a smart, affordable solution. Order today and keep your heater ready when it matters most.
