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Chelsea PTO Assembly P/N: 281GDFJW-B5RY or 281GDFJWB5RY

281GDFJW-B5RY Chelsea PTO Assembly

Chelsea

Listing Price: $7,635.15
Sale Price: $4,199.33

This item qualifies for FREE shipping on orders over $295 and under 70 lbs

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Product Code:
CHL281GDFJWB5RY
Condition:
New
Availability:
Usually Ships in 3 to 5 Business Days
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The Chelsea 281 Series Power Take-Off assembly, part number 281GDFJW-B5RY or 281GDFJWB5RY, is a hydraulically shifted hot-shift PTO designed for automatic transmissions with a 10-bolt aperture, commonly found on Allison transmissions. An evolution of the 280 Series, the 281 Series features a ductile iron bearing cap rated 117% stronger than gray iron, an O-ring sealing configuration between the housing and bearing cap to improve clamp load, and an enhanced clutch pack with steel discs 80% thicker than the predecessor design. Nine speed ratios cover both low and high ranges, and the series supports continuous operation. Applications span fire and rescue, refuse, pumper cleaner, and truck crane equipment. Call us to confirm proper fit for your specific transmission and application.

Features

Hydraulic PowerShift (hot-shift) operation for use on 10-bolt automatic transmission apertures
Ductile iron bearing cap, 117% stronger than gray iron predecessor
O-ring sealing configuration between housing and bearing cap improves clamp load and resists vibrational effects
Enhanced clutch pack with steel discs 80% thicker than prior design to resist premature tooth wear
Nine speed ratios including low and high speeds; supports continuous operation
Wet Spline Lubrication option provides 7 to 10 times greater shaft life; SmartStart reduces shock load at start-up; Electronic Overspeed Control (EOC) protects driven equipment

Tech Specs

  • Mounting Type: 10-Bolt aperture
  • Shift Type: Hydraulic PowerShift (hot-shift)
  • Compatible Transmission Type: Allison automatic transmissions
  • Continuous Operation: Yes
  • Series Continuous Torque Rating: 390 lb-ft (529 Nm) - verify actual rating on application pages
  • Output Types Available in Series: SAE B pump flange, SAE C pump flange, ISO 7652 pump flange, driveline
  • Speed Ratios: Nine (includes low and high)
  • Lubrication Option: Wet Spline (W) or Pressure Lube (P)
  • NMFC Code: 125820 - Hydraulic PTOs, Pumps, Motors, etc.

Additional Information

Chelsea PTO 281 Series model break down
The 281 Series is the direct successor to Chelsea's top-selling 280 Series, with structural and sealing upgrades targeting the vibrational demands of modern engine designs. Markets served include fire and rescue, refuse collection, pumper cleaner, and truck crane. The series supports multiple output shaft configurations: Smart Start round shaft (1-1/4 in. with 5/16 in. key), 3/4 in. 11-tooth pump spline, SAE B 7/8 in. 13-tooth pump spline, SAE C 1-1/4 in. 14-tooth pump spline, DIN 5462 pump spline, 1410 companion flange, DIN 120 flange, and DIN 100 flange. Rotatable cast iron flanges reduce interference and pump clearance issues. A positive stop for driveline outputs eliminates oil seal damage from coupling. Parker Chelsea reference documents for this series include the 281/288 Series Parts List (HY25-2281-M1/US) and the 267/281/288/871/878 Series Owner's Manual.

Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.

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