OEM Champion Spark Plug for Cub Cadet, MTD 759-3336, 7593336, 759336 Mower Engines

What It Is

This is a genuine OEM Champion spark plug designed for Cub Cadet and MTD mower engines, specifically replacing part numbers 759-3336, 7593336, and 759336. It delivers the ignition spark needed to start and run your mower.

Fitment & Compatibility

Before buying, confirm your mower’s engine model and spark plug gap. This plug fits many Cub Cadet, MTD, Troy-Bilt, and Yard Machines mowers with engines like the OHV, Intek, or Endurance series. Check your mower’s manual or current plug for the correct gap (typically 0.030” or 0.040”). This is a direct OEM replacement—no adapter or modification needed. If your mower uses a different plug brand (e.g., NGK), verify the cross-reference number (often RJ19LM or equivalent). Measure the plug thread length (about 3/4”) and hex size (13/16”) to match your engine’s cylinder head.

Key Things to Know

• Quality: Genuine OEM part, built to exact specifications—no fitment guesswork or premature failure risks common with generic plugs.
• Installation difficulty: Easy for any DIYer. Requires a spark plug socket and torque wrench (recommended 20-25 ft-lbs). Hand-tighten first, then torque.
• Common gotcha: The gap may not be pre-set. Always check and adjust with a feeler gauge before installing—an incorrect gap causes misfires or hard starting.
• Lifespan: Replace annually or every 100 hours of use for best performance. If your mower runs rough or won’t start, this is a cheap first fix.

Should You Buy It

If you own a Cub Cadet or MTD mower that calls for this plug, buy it. It’s a low-cost, reliable OEM part that ensures proper ignition and easy starting. Perfect for routine maintenance or troubleshooting a no-start issue.