Noma Riding mowers & tractors Parts — Browse All Models

Frequently replaced Noma riding mower and tractor parts

Noma riding mowers and lawn tractors include a number of high-wear parts that can affect performance or prevent your mower from starting. Replacing these components when they fail helps extend your mower’s life and keeps your yard looking sharp.

Mandrel assembly

The mandrel assembly supports the mower blade under the deck and connects it to the pulley system that drives the blade rotation. When the mandrel bearings wear out or the housing cracks, the blade may wobble or fail to spin. Replacing the assembly restores safe, even blade movement.

Follow our guide to how to replace a mandrel assembly on a riding lawn mower for step-by-step instructions.

Starter solenoid

The starter solenoid acts as a switch that controls the electrical current from the battery to the starter motor. If you turn the key and hear a click but the engine doesn’t crank, a failed solenoid might be the cause. Testing and replacing this part can solve many no-start issues.

Check out our guide to replacing the starter solenoid on a riding lawn mower to do it yourself.

Blade

Noma riding mowers use different blade types, including standard lift, mulching, and high-lift blades. Choose the blade type that matches your cutting needs—standard for general mowing, high-lift for bagging, and mulching blades for fine clippings. Replace blades that are dull, bent, or chipped to ensure a clean, even cut.

Learn how to replace a riding lawn mower blade with our DIY guide.

Routine riding mower and tractor maintenance

Regular maintenance improves performance, prevents breakdowns, and extends the life of your riding mower. Seasonal upkeep also helps your mower start easily after winter storage and run efficiently throughout the cutting season. Keeping up with maintenance reduces long-term repair costs and keeps your mower ready to tackle every job.

Explore our full selection of lawn mower maintenance parts for filters, belts, blades, and tune-up kits.

Change the engine oil

Replace engine oil at least once per mowing season, or after every 50 hours of use. Dirty oil reduces lubrication and can damage engine components over time.

Replace the air filter

Swap the air filter regularly to prevent dust and debris from entering the engine. A clogged air filter restricts airflow, leading to hard starts and poor performance.

Inspect and replace belts

Check the drive and deck belts for cracking or stretching. A worn belt can slip or break during mowing, leaving you with an inoperable deck or drivetrain.

Clean the underside of the deck

Grass clippings and debris can build up under the mower deck and reduce cutting efficiency. Scrape off buildup periodically to maintain good airflow and blade action. You can also use a deck spray to help prevent grass buildup.

Check tire pressure

Low or uneven tire pressure can affect steering and cutting height. Check pressure regularly and inflate to the recommended PSI listed in your mower’s manual.

FAQ about Noma riding lawn mower parts

Q: How do I find the right parts for my Noma riding mower?

A: Locate your model number—usually found under the seat or on the mower frame—and enter it in the search bar to view compatible parts.

Q: Why does my mower start but die after a few seconds?

A: This could point to a clogged carburetor, a dirty fuel filter, or stale fuel. Cleaning the carburetor and replacing the fuel filter often resolves the issue.

Q: What’s the difference between high-lift and mulching blades?

A: High-lift blades create strong airflow to lift clippings into a bag. Mulching blades recirculate clippings inside the deck to cut them into smaller pieces.

Q: Can I reuse an old starter solenoid?

A: If the solenoid is damaged or corroded, it's best to replace it. Reusing a faulty solenoid can cause ongoing starting problems.

Fixing a Noma riding mower or lawn tractor is easier when you have the right parts and step-by-step guidance. From starting issues to blade problems, most repairs are simple with help from our riding mower and tractor DIY repair help section. You’ll find clear instructions, troubleshooting tips, and everything you need to get your mower running again.