OCPTY Electric Lawn Mower Clutch 5218-134 Replacement for Craftsman/for SNAPPER/for Warner: 5218-134 5218-221 5100084 5100084S Electric PTO Clutch

What It Is

This is an electric PTO (power take-off) clutch that engages and disengages the mower blades on riding lawn tractors. It’s designed for Craftsman, Snapper, and Warner models that use a 5218-134 or compatible OEM clutch assembly.

Fitment & Compatibility

Before buying, check these three things:

• Model numbers: Direct replacement for OEM part 5218-134, plus 5218-221, 5100084, and 5100084S. Verify your tractor’s model number (not engine model) against these.
• Physical measurements: Confirm the clutch’s shaft diameter (usually 1-inch), bolt pattern (3-bolt or 4-bolt), and overall thickness. Measure your old clutch if possible.
• Deck size & belt type: This clutch works with standard 42- to 54-inch decks using a 5/8-inch or 1/2-inch belt. Check your belt width and routing diagram.
• Wiring: It uses a standard 2-wire connector (12V DC). Ensure your tractor’s harness matches; if not, you may need a pigtail adapter.

Key Things to Know

• Quality: This is an aftermarket clutch (not OEM), but it uses the same specs as Warner OEM units. Expect similar durability for residential use.
• Installation difficulty: Moderate. You’ll need basic wrenches, a socket set, and possibly a puller if the old clutch is seized. Allow 1–2 hours.
• Common gotchas: The clutch’s air gap (0.010–0.025 inches) must be set correctly for engagement. Also, check the pulley for bearing play before installing.
• Warranty: Usually 1-year limited. Keep your receipt and note that electrical failures (e.g., coil burnout) are covered, but wear from debris isn’t.

Should You Buy It

This is a solid budget-friendly swap for Craftsman or Snapper tractors needing a PTO clutch replacement. It’s best for DIYers comfortable with basic mechanical work and who want a direct fit without modifying wiring or brackets. If you need a heavy-duty clutch for commercial use or a specific OEM warranty, consider the Warner OEM version instead.