PTO'S

PTO's

442 Series

The flexible 442 Series PTO design works with virtually all-existing and new transmission applications. With the availability of over 83 different input gear pitches and 11 speed ratios, the Chelsea 442 Series offers you tremendous coverage for almost any job you may have. Now the 442 series, a mechanical unit, offers new coverage for the Allison 1000, 2000/2400 series automatic transmissions. Chelsea’s 442 Series provides you with a wide variety of output options (38) to meet the job requirements that come your way.

This economical workhorse features cast iron housing and tapered cone bearings on the output shaft, giving it a high torque rating and long service life. The removable shift cover makes it easy to establish correct backlash settings during installation. Chelsea’s self locking nuts simplifies installation by eliminating the need for tab washers. The self-locking nut provides you with an excellent fastener for the low speed, high torque engines that are so prevalent in today’s trucks.
  • For virtually all transmissions
  • Economical workhorse
  • Cast iron housing and tepered cone bearing
  • Easy to interchange between transmissions
442 Series

489 Series

The new flexible 489 Series PTO design works with virtually all existing and new transmission applications that feature an 8 bolt PTO aperture. With the availability of over 8 different input gear pitches and 11 speed ratios, the Chelsea 489 Series is engineered to work with virtually all-existing transmission applications. The 489 Series provides you with a wide variety of output options (38) to meet the job requirements that come your way, and with 13 shift options, 2 lubrication types and 3 mounting styles, provides you with 933,504 workhorse combinations. Chelsea’s new deep mount housing design opens up even more application coverage on Mack Transmissions.

Once again we look at making installation easier by incorporating the thickness of the filler block in the PTO housing. This results in less installation time and less chance of leakage. Chelsea’s new self locking nuts simplifies installation by eliminating the need for tab washers. The new self-locking nut provides you with an excellent fastener for the low speed high torque engines that are so prevalent in today’s trucks. Just a couple more ways that Chelsea provides you with quicker, easier and more reliable PTO installations.
  • For virtually all transmissions
  • Economical workhorse
  • Cast iron housing and tepered cone bearing
  • Easy to interchange between transmissions
  • 489 Series needs no adapter plate
489 Series

880 Series

Not every PTO is as tough as an 880. That’s because many don’t need to be. But if you’re using bulk haulers, fire trucks, oil rigs, utility and generator applications, large truck recovery or other tough challenges, the Chelsea 8-bolt 880 Series PTO is designed for high and low speed, high torque applications with constant mesh input gears. It features a standard lever control shift, or an optional air control shift. Pressure lubrication is available to ensure longer bearing life. Tapered cone bearing offer excellent load bearing capability. And the rugged cast-iron housing is extremely durable. The shift cover is removable, making backlash adjustment easier and more accurate. Specifically, the 880 is an 8-bolt, 10 spline, 11/2″ output shaft PTO, rated for up to 500 lbs/ft torque for intermittent service.
  • High and low speed applications, high torque capacity
  • hree shift options
  • Dual pump output available
880 Series
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