Tune Up Service Maintenance Kit w/Oil Fits John Deere LT133 LT150 LT155 GY20574

What It Is

This is a complete tune-up service kit for John Deere LT133, LT150, and LT155 lawn tractors. It includes an oil filter, spark plug, fuel filter, air filter, and a quart of SAE 30 oil—everything needed for a single annual maintenance service.

Fitment & Compatibility

• Models: John Deere LT133, LT150, LT155 (gas-powered, hydrostatic or manual transmission).
• Engine: Fits 14.5–15.5 HP Briggs & Stratton or Kawasaki engines found on these models. Verify your engine brand and model number (stamped on valve cover) before buying.
• Deck size: Works with any deck size these tractors came with (38", 42", 48")—deck size doesn’t affect kit compatibility.
• OEM cross: Replaces John Deere part GY20574 (oil filter), plus standard fuel/air filter and spark plug equivalents. Not a genuine John Deere kit, but uses standard aftermarket parts.
• Check before buying: Confirm your tractor has a spin-on oil filter (not a cartridge) and that your spark plug gap matches the included plug (0.030" typical). The oil is 30-weight—do not use if your manual calls for 10W-30.

Key Things to Know

• Installation difficulty: Easy; basic hand tools (socket set, oil filter wrench, spark plug gap tool) and 30–45 minutes are enough.
• Oil quantity: The quart included is enough for most LT133/150/155 engines (1 qt capacity), but check your manual—some hold 1.25 qts. You may need a second quart.
• Spark plug gap: The plug comes pre-gapped, but verify it with a feeler gauge. Wrong gap can cause misfire or hard starting.
• Filter quality: Aftermarket filters are functional, but some users note slightly thinner gaskets than OEM. Hand-tighten only—over-tightening can cause leaks.

Should You Buy It

If you own a John Deere LT133, LT150, or LT155 and want a single-box solution for annual maintenance without tracking down individual parts, this kit saves time and money. It’s not for professional use or high-hour machines (consider OEM filters for heavy duty), but for DIY homeowners doing one service per year, it’s a solid value at $45.