Parts for Columbia 31AH54K3897 / 2013: Sub Cylinder Head Parts

Cylinder head gasket seals the combustion chamber on engines. Replace if you notice oil leaks, overheating, or loss of compression. Confirm fit with your model.

Fix engine misfires or no-start issues with this spark plug. Ignites the air-fuel mixture in your mower's cylinder. Quick DIY replacement in 15 minutes.

Muffler gasket seals exhaust connection on snow throwers. Replace if exhaust leaks or noise increases. Verify fit with your model number before ordering.

M4 x 55mm mounting screw for snow thrower engines and small lawn & garden equipment. Replaces broken, stripped, or missing screws in engine assembly.

Intake valve seal prevents air and fuel from escaping during engine operation. Replace if you notice oil consumption or reduced performance. Verify fit with your engine model number before ordering.

Fix engine valve noise or loss of compression with this valve spring retainer. Secures valve springs to control valvetrain operation. DIY-friendly repair.

Fix engine starting problems or loss of compression with this valve spring. Controls valve timing in small engines. Common repair for lawn tractors and snow throwers.

Oil leaking into combustion chamber? Replace your valve spring retainer to keep valve springs secure and prevent oil contamination. Fits lawn tractors.

Replaces a worn or damaged exhaust valve adjuster in your lawn equipment engine. Durable metal component that controls valve movement timing.

Rocker stud bolt that secures the rocker arm assembly in small engines. Replace if threads are stripped, bolt is bent, or stud is broken or missing.

Engine won't start or runs poorly? A broken rocker arm prevents proper valve operation. Direct replacement part for lawn tractors and snow throwers.

Fixes engine misfires and rough running caused by improper valve clearance. This adjusting nut helps restore correct valve timing on lawn mowers and tillers.

Loose or vibrating parts? This pivot locking nut secures critical pivot points on lawn equipment. Simple installation takes 10-15 minutes.

Vents air into the fuel tank while preventing emissions from escaping. Replace if cracked, brittle, or leaking to restore proper engine ventilation.

Zinc-plated M6 x 12mm hex bolt for securing components on lawn tractors and outdoor power equipment. Replace when stripped, rusted, or missing.