Find the right part faster
Multiple models matched. Select your model to confirm fit.

This Briggs & Stratton Genuine Tune-Up Kit Includes
1 Bottle Of Oil (100005)
1 Air Filter (491588S)
1 Spark Plug (591868)
A seasonal tune-up keeps your MTD mower running strong year after year. Genuine OEM maintenance kits from Repair Clinic include all the essential parts—spark plugs, air filters, fuel filters, and oil—to restore your mower to factory performance standards. These kits eliminate guesswork and ensure compatibility with your specific MTD model.
Don't wait for a breakdown mid-season. Replace worn consumables now and extend engine life while maintaining manufacturer model-specific fit and performance.
Browse our complete selection of MTD lawn mower tune-up kit parts and find your model number to order today.
Most OEM MTD tune-up kits bundle a spark plug, engine air filter, fuel filter, and sometimes a pre-filter screen. Some deluxe kits add oil filter and carburetor gasket set. Always verify kit contents against your model number before ordering to ensure you get exactly what your mower needs.
Replace your MTD spark plug every 100–150 operating hours, or at the start of each mowing season. If you notice hard starting, fouling, or poor fuel economy earlier, check the plug immediately. A worn spark plug forces the engine to work harder and wastes fuel.
OEM MTD air filters are engineered for exact fit and optimal airflow in your specific engine model. Universal filters may fit loosely, allowing unfiltered air into the engine and causing accelerated wear. Genuine parts support proper fit and performance.
Run stabilized fuel through the carburetor, drain old oil, and replace the spark plug. A fresh tune-up kit in spring ensures quick, reliable startup. Clean air and fuel filters prevent hard starting and stumbling on first use.


Ensure reliable operation with genuine MTD Lawn Mower Tune-Up Maintenance Kits from Repair Clinic. Regular maintenance is key to keep your mower running efficiently and prolong its lifespan. Our kits include essential parts for effective tune-ups, helping to maintain engine health and operational reliability. Easily find the right kit for your specific model using our part number lookup. Enjoy the convenience of same-day shipping, No-Hassle 365-Day Returns, and our Price Match Guarantee. For detailed guidance, visit our Lawn Mower Repair Help page. Find more options with our MTD Lawn Mower Parts.
On MTD lawn mowers, check the frame near the blade deck first, then look under the seat or on the engine housing for a model-and-serial-number label. The model number may combine numbers and letters, so copy it exactly, including any dashes or spaces. Enter it in the model number search to pull up the parts matched to your unit. This filters Repair Clinic's full MTD lawn mower parts selection, including tune-up kits and other associated parts, to options made for your specific mower. With the correct model number in hand, you can skip manual fit checks and order with confidence knowing the fit is right.

Tune-up and maintenance kits bundle the routine wear items your MTD Lawn Mower needs so you can complete a full service in one go. Repair Clinic stocks OEM kits along with step-by-step installation videos that walk you through each item in the kit. Use the model number lookup to confirm the correct kit for your unit before you order.

Repair Clinic has five ways for you to stop your lawn mower from leaking gas. Before we get to those, let's review how the gasoline you pour into the tank powers the mower.

Why does your lawn mower battery keep dying? Repair Clinic has done the research and this article will provide some answers, starting with what a battery's purpose is on a gas-powered lawn mower.

What's causing that black smoke to billow out of the engine? There are three likely reasons and they are all related to how a gas-powered lawn mower engine operates.