The Chelsea 897 Series Power Take-Off, part number 897HBFJW-M5XK or 897HBFJWM5XK, is a constant-mesh PTO engineered specifically for Allison 3000 and 4000 Series transmissions. Its 10-bolt mounting configuration tucks the housing tight against the transmission, positioning the SAE C output flange at the rear of the transmission to maximize pump clearance between the unit and the frame rail. A one-piece main shaft eliminates the input splines found on extension-style designs. The wet-spline output extends service life on the PTO and pump shaft under demanding duty cycles. Common applications include aerial trucks, fire and rescue apparatus, refuse trucks, and truck cranes. Call us to confirm proper fit for your specific transmission configuration.
Features
Designed for Allison 3000 and 4000 Series transmissions
10-bolt mounting, installs like a standard side-mounted PTO with additional rear-transmission support bracket
Constant-mesh (constant engagement) shift type
SAE C outlet flange and output shaft type
Wet-spline output extends PTO and pump shaft life in high-demand applications
One-piece main shaft eliminates input splines between PTO and output extension
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: Constant Mesh (Constant Engagement)
- Input Gear: Allison World Transmissions (FJ designation)
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C
- Output: Wet Spline
- Series Intermittent Torque Rating: 501+ lb-ft
- Series Output Power: 56+ HP
- Part Number: 897HBFJW-M5XK or 897HBFJWM5XK
Additional Information
Parts Manual: Chelsea 897 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
