Electric PTO Clutches for Kees / Yazoo Mowers

This Stens Electric PTO Clutch is designed for rugged use and made for residential and commercial applications, excellent on Kees Mowers.

255-535 Electric PTO Clutch for Kees Mowers.

255-535 Electric PTO Clutch for Kees Mowers.

  • Electric PTO Clutch
    (255-331)
    USD $372.88
  • Electric PTO Clutch
    (255-335)
    USD $331.25
  • Electric PTO Clutch
    (255-511)
    USD $216.42
  • PTO Clutch
    (255-515)
    USD $232.16
  • Electric PTO Clutch
    (255-535)
    USD $341.15
  • Electric PTO Clutch
    (255-835)
    USD $311.50

Details

These Stens Electric PTO Clutches are OEM spec and replace Kees and Yazoo PTO Clutches. They are designed for rugged use and made for residential and commercial applications. These PTO clutches have a One Year Warranty and are maintenance and adjustment free.

You must match up your existing PTO Clutch reference number exactly to the corresponding replacement Electric PTO Clutch. For proper ordering reference Kees, Warner, or Ogura Part No. below in the chart.

Item # Replaces
Kees / Yazoo OEM
Replaces
Warner  #
ID HT Pulley
Diameter
Direction Uses Belt
Width
255-331 128711 5218-10
5218-223
1 1/8" 3 1/4" 5 3/8" Counter
Clockwise
1/2" or 5/8"
255-335 7058925 5218-26
5218-58
5218-67
5218-68
5218-147
5218-214
5218-257
1 1/8" 3 1/2" 4 7/8" Clockwise 1/2"
255-511 160889 5217-6
5217-7
5217-9
5217-35
1" 3" 5 3/8" Counter
Clockwise
1/2" or 5/8"
255-515 145028 5217-2
5217-40
5217-46
1" 3" 5 3/8" Counter
Clockwise
1/2"
255-535 102603 / 109580 5218-5
5218-70
5218-259
1 1/8" 3 1/4" 6 5/16" Clockwise 5/8"
255-835 287301 5219-108 1" 4" 5 3/8" Counter
Clockwise
1/2"

Important:

If a clutch is mounted incorrectly then the springs will be run in compression and it will cause the springs to fail.

Generally, most applications that mount directly to the crankshaft use a counter clockwise rotation for standard mount (pulley away from engine). A clockwise rotation is normally used for reverse mounting (pulley towards engine).

In order for your PTO clutch to be installed properly you must torque correctly to prevent premature failure. You must allow both axial and radial free-play on the anti-rotation device. You must allow this free-play or resistance will be created resulting in field bearing failure.

When mounting bolt and retaining washer and torque for the clutch follow these specs. for it to work properly.

  1. Use Grade 5 or Grade 8 bolt only

Minimum Torque:

  1. 7/16" UNF bolt is 50ftlb/67 Nm
  2. 3/8" UNF bolt is 31ftlb/42 Nm
  3. M10x1.5 bolt is 35ftlb/48 Nm

Anything less than required mounting torque could result in clutch failure, thus voiding warranty.

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