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Champion Spark Plug (RC12YC). The spark plug ignites the fuel and air mixture in the cylinder to power the engine. If the spark plug is burnt, fouled or damaged the engine may not start or may run rough.

NGK spark plug. The spark plug ignites the fuel and air mixture in the cylinder to power the engine. If the spark plug is burnt, fouled or damaged the engine may not start or may run rough.

Small engine Champion spark plug (RJ19LM). If the engine does not start, the spark plug may be defective. The spark plug should be replaced periodically during regular maintenance.

MTD Spark Plug. The spark plug ignites the fuel and air mixture in the cylinder to power the engine. If the spark plug is burnt, fouled or damaged the engine may not start or may run rough.
A fouled or worn spark plug is the #1 reason a Huskee mower won't start or runs rough mid-season. We stock genuine OEM Huskee spark plugs and boots engineered to fire reliably in the heat and vibration of lawn mowing. Every plug we carry matches your mower's exact specifications for proper gap and heat range—critical details that cheap aftermarket parts get wrong.
Hard starting, weak spark, or that rough idle that gets worse as the season heats up? A fresh spark plug often solves it. Keep a spare on hand: mowers demand more from plugs than other small engines because of sustained high RPMs. Shop our full selection of Huskee lawn mower parts and get the right plug in two days or less.
Find your model number on the chassis frame or engine housing and we'll match you to the exact spark plug your Huskee needs. Same-day fulfillment on most orders.
Huskee mowers foul plugs when the air filter is clogged, the carburetor runs too rich, or the mower sits unused with old fuel. A fouled plug looks black and wet. Replace it with a genuine OEM plug and clean or swap the air filter. If fouling returns within a few hours of mowing, the carburetor needs cleaning—stale fuel varnish is usually the culprit after winter storage.
Huskee uses standard automotive-style plugs sized for small 4-stroke engines, typically Champion, NGK, or Denso equivalents depending on your mower's engine manufacturer (Kohler, Briggs & Stratton, Tecumseh, or Honda). The gap, heat range, and thread size must match exactly. Repair Clinic cross-references your exact model to the correct OEM plug—never guess on spark plugs.
Replace spark plugs annually at season start, or every 100 operating hours, whichever comes first. Huskee mowers work harder than casual use suggests—sustained blade-spinning burns plugs faster than you'd think. Inspect plugs every 25 hours of use during peak season. A fresh plug costs $8–15 and prevents a $300 carburetor cleaning or a missed mowing window.
The model sticker is usually on the right side of the mower deck or welded to the frame. Your engine manufacturer's name (Briggs & Stratton, Kohler, etc.) is stamped on the engine block itself. Both details matter: Huskee makes many models, and each engine requires its own plug spec. Share both numbers in search and we'll pull the exact part.


Ordering lawn mower huskee lawn mower spark plug parts online is simple and gives you access to OEM options across every major brand. With same-day shipping on most in-stock items, you'll have your replacement part fast, minimizing downtime. Our model/part number lookup finds the exact OEM part for your unit, and every order is backed by our 365-day return policy and price-match guarantee. Browse our repair help section for troubleshooting tips, part testing guides, and step-by-step installation videos for your specific product.
Huskee typically places the lawn mower model number on a label attached to the chassis frame, mower deck, or engine housing. Check the right side of the deck and the frame near the engine, then clean off grass or dirt so every letter and number is readable. The model number identifies the entire mower, not just its spark plug or another individual part. Enter it in the search bar to sort the catalog down to parts made for your model, including maintenance and repair parts. That means fewer wrong orders and a faster repair.

Regular spark plug replacement keeps your Huskee Lawn Mower starting cleanly and running at full power. Repair Clinic stocks OEM spark plugs for a wide range of engines, along with installation videos and gap-setting guides. Use the model number lookup to confirm the exact spark plug specification for your engine, and keep a spare on hand for the next tune-up.

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.