Description
When your gas engine tractor starts running rough or won’t fire up reliably, worn spark plugs are usually the culprit. These medium heat range Autolite 3116 plugs bring back that smooth idle and strong power you expect from your equipment. The 4-pack means you can change all plugs at once, which keeps your engine balanced and saves you time down the road.
What You’re Getting
- Medium hot heat range handles most operating conditions without fouling or overheating
- Power tip design concentrates spark energy for reliable ignition even with older fuel
- Non-resistor construction provides strong spark without interference suppression
- 18mm thread diameter with 1/2″ reach fits most gas tractor engines
- Set of four plugs ensures balanced performance across all cylinders
Built for Real Farm Work
These plugs work in a wide range of gas-powered tractors and agricultural equipment where reliable ignition matters. Whether you’re running a utility tractor for mowing and loader work or powering up older equipment for hay season, these plugs deliver consistent performance when the work needs to get done.
Made to Last
Autolite builds these plugs to handle the temperature swings and vibration that come with tractor work. The medium heat range means they won’t foul out during light work but can handle harder pulls without overheating. Quality construction keeps them firing reliably season after season.
Installation Notes
Replace all four plugs at the same time to keep your engine running smooth. Gap them according to your engine specs before installation, and don’t overtighten—snug plus a quarter turn is usually right. If your old plugs show heavy deposits or unusual wear, it might be time to check your air filter and fuel system too.
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