Xtreme Outdoor Power Equipment X0245 PTO Clutch Compatible with/Replacement for Massey Ferguson 3000 and 3900 Series, Simplicity Citation Series 5900522 5100084, 5100084S, 5100084SM

What It Is

The Xtreme Outdoor Power Equipment X0245 is an aftermarket electric PTO (power take-off) clutch designed to engage and disengage the mower deck blades on compact utility tractors and zero-turn mowers. It’s a direct replacement for Massey Ferguson 3000/3900 series tractors and Simplicity Citation series zero-turns.

Fitment & Compatibility

Before buying, verify these three things:

1. OEM cross-reference: Confirmed fit for Massey Ferguson 3000/3900 series and Simplicity Citation series models using OEM part numbers 5900522, 5100084, 5100084S, and 5100084SM. Check your machine’s parts diagram for these numbers.
2. Physical measurements: The clutch must match your original’s shaft diameter, bolt pattern, and overall thickness. Measure your old clutch’s pilot bore (typically 1” or 1-1/8”) and mounting bolt circle (usually 3-bolt pattern). Xtreme does not list exact specs—compare dimensions with your old unit.
3. Deck size: This clutch is for mid-mount decks on tractors and zero-turns, not out-front or belly-mount decks. Confirm your deck uses an electric PTO clutch (not manual lever or belt tensioner).

Not compatible with most residential lawn tractors (e.g., John Deere 100 series, Craftsman) unless they explicitly use the OEM numbers above.

Key Things to Know

• Quality: Xtreme is a budget aftermarket brand. With only 1 review (5 stars), long-term reliability is unproven. Expect functional performance but possibly shorter lifespan than OEM (which runs $250–$350).
• Installation difficulty: Moderate. Requires pulling the deck, removing the old clutch (usually 3 bolts and a wire harness), and reinstalling. You’ll need a puller if the old clutch is seized. No special tools beyond standard sockets and a multimeter (to test the coil).
• Common gotchas: Check the air gap (typically 0.010–0.020”) after install—too tight or loose causes slippage or no engagement. Also verify the wiring connector matches your machine’s harness; some aftermarket clutches use generic spade terminals that may need adapter pigtails.
• Warranty: Xtreme usually offers a 1-year warranty—confirm before buying. OEM clutches often have 2-year coverage.

Should You Buy It

This clutch is a solid budget pick if you need a quick replacement for an older Massey Ferguson or Simplicity Citation and don’t mind rolling the dice on aftermarket longevity. It’s not ideal for heavy commercial use—stick with OEM for daily mowing. For a weekend homeowner with a 3000/3900 series tractor, it’s worth the savings.