The Chelsea 812XKAHX-W3XD or 812XKAHXW3XD is a Power Take-Off assembly from the Chelsea 812 Series, engineered for extra heavy-duty applications on manual transmissions with an 8-bolt mounting aperture. The 812 Series is characterized by a low-profile cast iron housing, wire/cable mechanical shift, and an intermittent torque rating up to 400 lb-ft (542 Nm) at the series level. Output is rated at 56-plus HP (51-plus kW). The round output shaft uses a 1-inch, 1/4-inch key configuration. Note that Parker Chelsea lists the 812 Series as obsolete. Pro Gear and Transmission can help you confirm availability and proper fit for your application - give us a call.

• Mounting Type: 8-Bolt
• Shift Type: Wire/Cable, Mechanical
• Output Shaft Type: Round Shaft, 1" diameter, 1/4" key
• Intermittent Torque (Series): 301-400 lb-ft (501+ Nm), up to 400 lb-ft (542 Nm)
• Output Power (Series): 56+ HP (51+ kW)
• Housing Material: Cast Iron
• Series Status: Obsolete (Parker Chelsea no longer lists this series as available)

The Chelsea 812 Series was designed as a single-gear PTO for heavy-duty vocational truck markets including dump trucks, tow and recovery, and aerial devices. The series offered five shift options and seven output options, including a 360-degree rotatable flange for direct-mount pump fitment between the transmission and chassis. Parker Chelsea documentation for this series includes the 812 Series Owner's Manual and Parts List (HY25-2812-M1_US). Parker Chelsea now lists the 812 Series as obsolete. Call Pro Gear and Transmission to discuss availability or to identify a current replacement that fits your transmission and application.