Electric Lawnmower, SCITOO PTO Clutch Fit for Exmark/for Lawnboy/for Oregon/for Prime/for Rotary/for Stens/for Toro/for Warner/for Wright Stander 5218-44

What It Is

This SCITOO PTO clutch is an aftermarket electric clutch designed to engage and disengage the mower blade on zero-turn and riding mowers. It fits multiple brands including Exmark, Lawnboy, Oregon, Prime, Rotary, Stens, Toro, Warner, and Wright Stander models, particularly those using a 5218-44 pattern.

Fitment & Compatibility

Before buying, verify these three things:

• Pulley diameter: Measure your current clutch pulley – this SCITOO unit typically matches 4.5-inch and 5-inch pulleys, but confirm against your mower’s spec.
• Shaft size: Check that your crankshaft diameter (usually 1-inch or 1-1/8-inch) matches the clutch’s bore.
• Wiring: This clutch uses a standard 2-pin connector; ensure your mower’s harness matches or have a pigtail adapter ready. Cross-reference OEM part numbers like 5218-44, 5218-44A, or 5218-44B for best fit. Not all “5218-44” clutches are identical – measure your old unit before ordering.

Key Things to Know

• Aftermarket quality: SCITOO clutches are budget-friendly but may have shorter lifespan than OEM – expect 1-2 seasons under heavy use.
• Installation difficulty: Moderate – requires basic tools (wrenches, socket set) and about 30-60 minutes. No special skills needed, but pay attention to air gap (usually 0.010-0.025 inches).
• Common gotchas: The clutch may run slightly hotter than OEM; ensure proper ventilation. Also, check that the engagement voltage (12V DC) matches your mower’s system – it’s standard but verify.
• Return policy: SCITOO offers a 30-day return window; test fit immediately after purchase.

Should You Buy It

This clutch is a solid, cost-effective replacement for DIYers on a budget who own a compatible mower and don’t mind occasional aftermarket quirks. It’s not ideal for commercial landscapers needing maximum durability – stick with OEM or premium brands like Warner for heavy daily use. For homeowners or light-to-medium mowing, it delivers reliable engagement at half the price.