Electric PTO Clutch for Cub Cadet Craftsman MTD Husqvarna 1703816SM 917-0983 1703816

What It Is

This electric PTO (Power Take-Off) clutch engages and disengages the mower blades on select Cub Cadet, Craftsman, MTD, and Husqvarna lawn tractors. It replaces OEM part numbers 1703816SM, 917-0983, and 1703816.

Fitment & Compatibility

Before buying, verify three things:

• Model number: Cross-reference your mower’s model number (found under the seat or on the frame) with the OEM part list. This clutch fits many MTD-built tractors with 42-inch to 54-inch decks, but not all.
• Pulley size: Measure the existing clutch pulley diameter. This unit typically uses a 3.5-inch or 4-inch pulley. If yours differs, it won’t align with the belt.
• Shaft size: The clutch must fit a 1-inch diameter crankshaft with a 3/16-inch keyway. Measure your engine shaft to confirm.
• Wiring: This is a 2-wire, 12V DC clutch. Check that your mower’s harness connector matches (flat spade terminals) and that the wires are long enough to reach without splicing.

If your mower uses a manual PTO or a different voltage, this won’t work.

Key Things to Know

• Quality vs. OEM: This is an aftermarket replacement, not genuine Cub Cadet. It’s generally reliable for the price, but some users report slightly shorter lifespan than OEM (2-3 seasons vs. 4-5 under heavy use).
• Installation difficulty: Moderate. You’ll need basic tools (wrenches, a puller for the old clutch, and a torque wrench). Expect 1-2 hours. The hardest part is often removing the old clutch if it’s seized.
• Common gotcha: The air gap must be set correctly (usually 0.010–0.020 inches) after installation. If the clutch chatters or fails to engage, check this first.
• Noise: Some users report a slight whine when engaged. This is normal for aftermarket clutches and doesn’t affect performance.

Should You Buy It

If you have an MTD-built tractor with a failed PTO clutch and want a budget-friendly fix that works out of the box, this is a solid choice. It’s not built as tough as OEM, but for residential use on a 42- to 54-inch deck, it’ll get the job done for several seasons. Skip it if you mow commercially or need the absolute longest lifespan—spend more on a genuine Cub Cadet unit.