Spark Plug 4-Pack compatible with Briggs and Stratton 491055; Champion RC12YC; Kohler 25 132 12-S
Pack includes 4 spark plugs to ensure proper engine function.
Key facts
- Part type
- Spark Plug
- Included
- 4-pack
- Type
- Aftermarket replacement
Compatibility matrix
Only models verified by our team are listed| Parts for | Model | This part |
|---|---|---|
| Briggs And Stratton | Briggs and Stratton 491055 | Fits |
| Kohler | Kohler 25 132 12-S | Fits |
| Champion | Champion RC12YC | Fits |
Only the models listed above have a confirmed catalog fit. If yours is absent, compatibility is unknown, not ruled out. Compare the exact model identifier and any published dimensions or connectors before ordering.
Where to find your model number
- Briggs And Stratton, Kohler, Champion: Usually on the rating label under or on the back of the device. Your owner's manual also lists the model number.
General manufacturer guidance: exact label position can vary by model.
Spark Plug specifications
- Material
- Plastic/Metal
Installation guide - Small engine part replacement
General guidance for this part type - always follow your device manual- Socket set and screwdrivers
- Rag and container for fuel
- Old fuel causes most small engine running problems; drain stale fuel before testing a new carburetor.
- 1Make it safe. Switch the engine off, let it cool and pull the spark plug lead off. Work outdoors, away from flames.
- 2Reach the part. Remove the air filter cover and housing; carburetors sit right behind it.
- 3Remove the old part. Photograph the linkage and fuel line routing, close or clamp the fuel line, then disconnect lines and linkages and undo the fixings.
- 4Fit the new part. Use new gaskets, reconnect linkages and fuel lines exactly as in your photo, and refit the air filter.
- 5Start and check. Reconnect the plug lead, prime the engine if it has a primer bulb, start it outdoors and check for leaks and smooth idle.
This is general guidance for the part type, not a model-specific procedure. If the part does not fit without force, stop and recheck compatibility.
Maintenance check
Signs it's time to replace
- 01Engine misfires or idles roughly
- 02Hard starting, especially on cold mornings
- 03Sluggish acceleration and reduced power
- 04Worse fuel economy than usual
12 month warranty on every part
Every part we sell is covered for 12 months from delivery. If it fails in normal use, we replace it or refund you , claim it straight from your order page.
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Questions & answers
+Which models does this spark plug fit?
Our team verified it for Briggs and Stratton 491055, Kohler 25 132 12-S, Champion RC12YC. The full list is in the compatibility table above.
+How do I make sure it fits my exact model?
Find the model number on your device label and compare it with the table above. Our fit guarantee covers verified models.
+What's in the box?
Pack size: 4-pack, as listed for this part. Check the photos and specifications for the exact contents.
+What is the spark plug made of?
Listed material: Plastic/Metal.
+Is it hard to install?
Install difficulty: Advanced · mechanical experience needed. Step by step instructions are on this page.
+How fast will it arrive?
US orders arrive in 7 to 15 business days with free shipping. Other countries are shown at checkout.
+Is there a warranty?
Yes, a 12-month warranty is included, and you can extend it at checkout. Returns are accepted within 30 days.