ACEBRI PTO Clutch for John Deere STX38 STX46, for Toro TimeCutter 104-3334 117-7468 SS4235 Z4200 Z4235 Z4202 Clutch, for Warner 5217-9 5217-2 5217-35 Lawn Part, for Craftsman 145028 42" Riding Mower

What It Is

This is an aftermarket electric PTO (Power Take-Off) clutch that engages and disengages your mower blades. It fits multiple popular lawn tractor brands including John Deere STX38/STX46, Toro TimeCutter and Z-series zero-turns, and Craftsman 42" riding mowers.

Fitment & Compatibility

Before buying, verify three critical things:

1. Deck size & model: Works for John Deere STX38 (38" deck) and STX46 (46" deck), Toro TimeCutter SS4235, Z4200, Z4235, Z4202, and Craftsman 145028 42" riding mower. It replaces OEM numbers 104-3334 and 117-7468 (Toro), Warner 5217-9, 5217-2, 5217-35, and Craftsman 145028.

2. Physical dimensions: Measure your existing clutch’s bolt pattern (typically 3-bolt or 4-bolt) and shaft diameter. This clutch uses a 1" bore with a 3/16" keyway, common on these models.

3. Wiring: Check your connector type. This clutch uses a standard 2-pin flat connector, but some older Toro or Craftsman models may require splicing. Verify your PTO switch amperage rating (usually 15-20A).

Key Things to Know

• Quality vs OEM: This is an aftermarket clutch at about half the cost of OEM. Most users report 2-3 seasons of reliable use, but not the 5+ years of a genuine John Deere or Toro part.
• Installation difficulty: Moderate. You’ll need basic tools (wrenches, multimeter, possibly a puller). Expect 1-2 hours. Watch for air gap adjustment (typically 0.010-0.015") after mounting.
• Common gotchas: The pulley may sit slightly higher or lower than OEM, causing belt alignment issues on some decks. Check belt wear and tension after install. Some units arrive with a loose air gap—check and adjust before first use.
• Noise: A few users report slightly louder engagement than OEM, but it’s within normal range.

Should You Buy It

If you’re on a budget and comfortable with basic mechanical work, this is a solid value for older machines where OEM parts cost more than the mower’s worth. It’s not for professionals needing maximum reliability or for newer machines still under warranty. For a weekend warrior keeping a 10-15 year old tractor running, it’s a smart buy.