Electric PTO Clutch Compatible with Bad Boy 070-1000-00 Compatible with Warner 5218-114 5218-220 5218-83 Compatible with Ferris 5100084 Replace 255-775 5218-221 5218-134, PTO Clutch

What It Is

An electric PTO (Power Take-Off) clutch that engages and disengages the mower blades on zero-turn and riding mowers. Designed as a direct replacement for Bad Boy, Ferris, and Warner clutch models, it’s a critical component for machines with a 12V electrical system.

Fitment & Compatibility

• Direct fit for: Bad Boy 070-1000-00, Warner 5218-114, 5218-220, 5218-83, Ferris 5100084. Replaces OEM numbers 255-775, 5218-221, 5218-134.
• Must check before buying: Measure your existing clutch’s shaft diameter (typically 1” or 1-1/8”), bolt pattern (3-bolt or 4-bolt), and overall height (usually 2.5”–3”). Compare to the unit’s specs. Also verify your mower’s electrical connector type (flat 2-pin or round) and that your battery/alternator can supply 12V at 5–10 amps.
• Not universal: Will not fit all Bad Boy or Ferris models. Confirm your deck size (48”–72” common) and engine HP (usually 20+ HP) to ensure the clutch can handle the load.
• Aftermarket vs OEM: This is an aftermarket replacement, not OEM. It’s built to match OEM specs, but may have slight differences in materials or tolerances. Warranty is typically 1–2 years vs OEM’s 2–3.

Key Things to Know

• Installation difficulty: Moderate. Requires basic hand tools (wrenches, socket set), a puller for the old clutch, and a torque wrench (tighten to 35–45 ft-lbs). Allow 1–2 hours if experienced.
• Common gotcha: The air gap (0.010”–0.020”) must be set correctly after installation. Too tight = drag; too loose = no engagement. Use a feeler gauge.
• Quality: 4.5 stars from 7 reviews suggests reliable performance, but limited sample size. Expect reasonable durability for residential/semi-commercial use, but not heavy commercial duty.
• Noise: Some aftermarket clutches are slightly noisier than OEM. If quiet operation matters, consider OEM.

Should You Buy It

If you need a budget-friendly replacement for a Bad Boy, Ferris, or compatible Warner clutch and you’re comfortable with a moderate DIY install (including air gap adjustment), this is a solid choice. Skip it if you demand OEM fit/finish, need heavy commercial reliability, or your mower uses an unusual shaft size or bolt pattern.