Lawn Mower Champion Spark Plug Cross Reference Chart(All Brands)

Champion is one of the most trusted spark plug brands, widely used across various mower models. However, depending on your mower’s brand and engine type, the exact Champion plug you need may vary.

To simplify things, this Lawn Mower Champion Spark Plug Cross Reference Chart will help you find compatible plugs for different brands and models.

Lawn Mower Champion Spark Plug Cross Reference Chart

Honda

Model	Champion Spark Plug Part #	Heat Range	Thread Size	Gap (inches)	Notes
HRX217	RN12YC	Standard	12mm	0.030	Gasket seat
HRR216	RN9YC	Cold	12mm	0.030	GXV160 engine
GCV160	RN9YC	Cold	12mm	0.030	Small engine
GCV135	RN9YC	Cold	12mm	0.030	Compact push mower
HRR216VKA	RN12YC	Standard	12mm	0.030	Standard residential mower
HRS216	RN9YC	Cold	12mm	0.030	Walk-behind mower
GXV160	RN9YC	Cold	12mm	0.030	Commercial engines
GX160	RN9YC	Cold	12mm	0.030	Compact commercial use

Toro

Model	Champion Spark Plug Part #	Heat Range	Thread Size	Gap (inches)	Notes
Recycler 20332	RN12YC	Standard	12mm	0.030	OEM replacement
Super Recycler 20345	RN12YC	Standard	12mm	0.030	Mid-range engine
Personal Pace 20352	RN9YC	Cold	12mm	0.030	Small engine
TimeCutter 50	RN12YC	Standard	12mm	0.030	Zero-turn mower
Titan 20365	RN12YC	Standard	12mm	0.030	Push mower series
Toro 20353	RN9YC	Cold	12mm	0.030	Compact mower
Titan 20360	RN12YC	Standard	12mm	0.030	Residential use

Related Lawn Mower Spark Plug Gap Chart(For All Brands + Models)

Briggs & Stratton

Model	Champion Spark Plug Part #	Heat Range	Thread Size	Gap (inches)	Notes
675EXi	RJ19LM	Standard	14mm	0.030	Extended life plug
625E	RJ19LM	Standard	14mm	0.030	OEM replacement
550EX	RJ19LM	Standard	14mm	0.030	Small push mowers
675Series	RJ19LM	Standard	14mm	0.030	Walk-behind mower
Quantum 625	RJ19LM	Standard	14mm	0.030	Light-duty engine
500E	RJ19LM	Standard	14mm	0.030	Compact mower engine
625Series	RJ19LM	Standard	14mm	0.030	General-purpose use

Craftsman

Model	Champion Spark Plug Part #	Heat Range	Thread Size	Gap (inches)	Notes
M105	RN12YC	Standard	12mm	0.030	Small engine replacement
M120	RN9YC	Cold	12mm	0.030	Light-duty engines
917.376970	RN12YC	Standard	12mm	0.030	Push mower model
247.376970	RN9YC	Cold	12mm	0.030	Compact engine
917.376971	RN12YC	Standard	12mm	0.030	Mid-range residential
917.379021	RN12YC	Standard	12mm	0.030	Walk-behind mower
917.374000	RN9YC	Cold	12mm	0.030	Small push mower

Related Lawn Mower Spark Plug Socket Size Chart(For All Brands + Models)

Husqvarna

Model	Champion Spark Plug Part #	Heat Range	Thread Size	Gap (inches)	Notes
LC221RH	RN12YC	Standard	12mm	0.030	Standard push mower
LC153	RN9YC	Cold	12mm	0.030	Small engine
LC247V	RN12YC	Standard	12mm	0.030	Residential use
LC356V	RN12YC	Standard	12mm	0.030	Mid-size mower
LC150	RN9YC	Cold	12mm	0.030	Compact push mower
LC221	RN12YC	Standard	12mm	0.030	Walk-behind mower
LC248	RN12YC	Standard	12mm	0.030	Standard mower engine

John Deere

Model	Champion Spark Plug Part #	Heat Range	Thread Size	Gap (inches)	Notes
E100	RN12YC	Standard	12mm	0.030	OEM recommendation
D110	RN12YC	Standard	12mm	0.030	Reliable cross reference
X300	RN12YC	Standard	12mm	0.030	Riding mower engine
LA105	RN12YC	Standard	12mm	0.030	Single cylinder engine
L120	RN12YC	Standard	12mm	0.030	Lawn tractor series
D130	RN12YC	Standard	12mm	0.030	Compact tractor engine

Ariens

Model	Champion Spark Plug Part #	Heat Range	Thread Size	Gap (inches)	Notes
924004	RN12YC	Standard	12mm	0.030	Single-cylinder engines
921045	RN9YC	Cold	12mm	0.030	Small engine use
926065	RN12YC	Standard	12mm	0.030	Residential push mower
921036	RN9YC	Cold	12mm	0.030	Compact mower
924050	RN12YC	Standard	12mm	0.030	Walk-behind mower
921055	RN9YC	Cold	12mm	0.030	Light-duty engine

Related Mower Productivity Chart(For All Brands + Models)

Snapper

Model	Champion Spark Plug Part #	Heat Range	Thread Size	Gap (inches)	Notes
7800627	RN9YC	Cold	12mm	0.030	Small residential mower
7800625	RN12YC	Standard	12mm	0.030	Mid-range engine
7800630	RN12YC	Standard	12mm	0.030	Push mower model
7800650	RN9YC	Cold	12mm	0.030	Compact engine
7800640	RN12YC	Standard	12mm	0.030	Standard residential use
7800660	RN12YC	Standard	12mm	0.030	Mid-size mower
7800670	RN9YC	Cold	12mm	0.030	Small push mower

Troy-Bilt

Model	Champion Spark Plug Part #	Heat Range	Thread Size	Gap (inches)	Notes
TB200	RN9YC	Cold	12mm	0.030	Compact push mower
TB210	RN12YC	Standard	12mm	0.030	Residential mower
TB230	RN12YC	Standard	12mm	0.030	Mid-range mower
TB240	RN9YC	Cold	12mm	0.030	Small engine
TB220	RN12YC	Standard	12mm	0.030	Single-cylinder engine

Cub Cadet

Model	Champion Spark Plug Part #	Heat Range	Thread Size	Gap (inches)	Notes
CC1022	RN12YC	Standard	12mm	0.030	Residential push mower
CC1042	RN12YC	Standard	12mm	0.030	Mid-size mower
CC1020	RN9YC	Cold	12mm	0.030	Compact engine
CC1125	RN12YC	Standard	12mm	0.030	Single-cylinder mower
CC1025	RN12YC	Standard	12mm	0.030	Walk-behind mower

Related Mower Blade Torque Specs Chart(For All Brands + Models)

Poulan

Model	Champion Spark Plug Part #	Heat Range	Thread Size	Gap (inches)	Notes
P4018	RN9YC	Cold	12mm	0.030	Compact push mower
P4020	RN12YC	Standard	12mm	0.030	Residential mower
P4025	RN12YC	Standard	12mm	0.030	Mid-range engine
P4030	RN9YC	Cold	12mm	0.030	Small engine use
P4040	RN12YC	Standard	12mm	0.030	Single-cylinder engine

Best Champion Spark Plug Cross Reference by Brand

Click the Links below in (green) to check the Latest Prices on AMAZON

Honda

Honda engines are very common in residential mowers. For models like the HRX217, HRR216, and GCV160, the recommended Champion spark plugs are RN12YC and RN9YC, depending on heat range and engine size. Cold plugs (RN9YC) are best for smaller engines or high-altitude use.

Toro

Toro mowers, including the Recycler and Super Recycler series, commonly use RN12YC. Some personal pace models use the RN9YC for smaller engine configurations. Always check your engine manual to confirm.

Briggs & Stratton

Briggs & Stratton engines are widely used in many push mowers. Models like 675EXi, 625E, and 550EX typically use the RJ19LM plug. These plugs are standard with a 14mm thread and are reliable for extended life and performance.

Craftsman

Craftsman mowers often incorporate Honda-style engines. Spark plugs like RN12YC and RN9YC cover most small mower models. RN9YC is more suitable for light-duty or compact engines.

Husqvarna

Husqvarna push mowers, including models LC221RH and LC153, generally use RN12YC or RN9YC. These plugs match OEM specifications for optimal engine performance.

John Deere

For John Deere lawn tractors and push mowers, RN12YC is the most recommended Champion plug. Models such as E100 and D110 are covered in this cross-reference, ensuring a smooth replacement process.

Ariens

Ariens mowers, like the 924004 and 921045, use Champion spark plugs RN12YC or RN9YC. These are compatible with single-cylinder engines and provide reliable ignition.

Snapper

Snapper residential mowers often use RN9YC and RN12YC. Smaller models use RN9YC, while mid-range engines are best with RN12YC.

Why Use a Champion Spark Plug Cross Reference?

1. Compatibility – Avoid using the wrong spark plug, which can cause engine misfires.
2. Engine Efficiency – Correct plugs ensure proper combustion, which enhances mower performance.
3. Durability – Champion plugs are designed for longevity and can reduce the frequency of replacements.
4. Ease of Maintenance – Using the correct cross-referenced plug ensures you can quickly replace it without searching for OEM-specific parts.

Tips for Choosing the Right Spark Plug

• Check your engine manual: Always confirm recommended plug types.
• Consider heat range: Cold plugs prevent fouling in smaller engines, while standard plugs suit most larger engines.
• Inspect regularly: Replace spark plugs annually or after 100 hours of operation.
• Gap your spark plug: Ensure the correct gap, usually 0.030 inches for most small mowers.

Final words

Maintaining a lawnmower requires attention to small but critical components like spark plugs. Using a Champion spark plug cross-reference chart simplifies finding the correct plug for your mower, ensuring peak performance and extended engine life.

By matching your mower’s brand and model to the recommended Champion plug, you can avoid common issues like hard starting, engine misfires, and poor fuel efficiency.