kohler-RC12YC-Lawn & Garden Equipment Engine Spark Plug
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Lawn & Garden Equipment Engine Spark Plug RC12YC


Part #RC12YC

Online price
In Stock
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This item is not returnable
This part fits
Kohler, Briggs & Stratton, Craftsman, Generac

Part Information

Helpful DIY instructions: Installation guide with video.

This spark plug (part number RC12YC) is for lawn and garden equipment engines.

Spark plug RC12YC produces the spark that ignites the fuel in the engine.

Wear work gloves to protect your hands when installing this part.


1-8 of 17 reviews
HoustonReviews 1Votes 0
• 5 months ago
Tana• 5 months ago
Good plugs

Ordered and installed on a 2004 Craftsman DLT3000.

Conley, GAReviews 1Votes 0
• 1 year ago
1Pat• 1 year ago
Easy to install

My son and I first time during a complete tune up on my Craftsman riding mower DLS 3500. The mower has not been used since 2013. The spark plug was very easy to install as well as everything else. The mower is up and running very good.

Response from Sears PartsDirect:
sm • 1 year ago

Hello. We are so glad to hear you had a positive experience with Sears!! We greatly appreciate your feedback. Thank you for choosing Sears!

little ole, DEReviews 2Votes 0
• 1 year ago
P2243• 1 year ago
Sparks in DE

Fit no problem. Had part number from instructions.

Long Island, NYReviews 4Votes 0
• 1 year ago
Grepsov• 1 year ago
Parts Direct delivers

This part was an exact match for original. Website was easy to navigate, with info on where to find the model number on your motor so you could order the correct parts. Delivery was quick.

Phil G
Reviews 1Votes 0
• 1 year ago
Phil G• 1 year ago

Plug filler seemed to be bent and didn’t line up with spark shaft. Was not happy and I am concerned about how long it will last or perform. Keeping the old plug just in case I have issues

Reviews 2Votes 0
• 1 year ago
Jonathan35• 1 year ago
Spark plug

Part fit perfectly. Just had to set the correct gap.

Reviews 2Votes 1
• 1 year ago
• 1 year ago
New spark plug in Craftsman snowblower 536.887752

The spark plug installation was easy to moderately difficult. I first removed the choke control knob from the snow hood by pulling it straight up, and then removed the four finger twist bolts that attach the snow hood to the engine. I then found that I had to also remove the top bolts that hold the handle to the frame and the bolt that holds the snow chute to the handle so the handle could be pushed down slightly to allow removal of the snow hood. The bottom handle bolts do not have to be removed, just slightly loosened. Care must be taken when removing the snow hood so the rubber primer button hose and the key ignition wire are not broken or disconnected. The spark plug wire can then be removed from the spark plug with fingers or a pliers, and the spark plug removed (counterclockwise) with a 16mm (5/8" might work too) deep socket. Put some oil on the threads of the new spark plug (Champion RC12YC) and screw it in (clockwise), and then push the spark plug wire on the spark plug. Before reinstalling the snow hood I found it useful to practice installing the choke control knob on the choke stem. Now reinstall the snow hood with the four finger screws, making sure the primer hose and ignition wire are still connected. Next install the choke knob. I found it useful to use a flashlight beforehand to determine the position of the choke stem beneath the hole in the snow hood. Now refasten the handle with its two upper bolts and tighten the two lower bolts. Then install the snow chute bolt. It's now complete.

PennsylvaniaReviews 4Votes 0
• 1 year ago
Chris24• 1 year ago
Good spark plug

The last one lasted me 4 years, so I can't complain.

1-8 of 17 reviews