The Chelsea 66P25 (also referenced as 66-P-25) is an oil-actuated piston and a listed replacement component in the Chelsea D-Series and H-Series PTO parts manuals. Oil actuation means the piston engages via hydraulic pressure from the transmission's own lube circuit, making this a core internal part of the PTO engagement assembly. Cross-referenced as SP66-P-25. Sold by Pro Gear and Transmission. Call us to confirm proper fit for your specific PTO unit before ordering.
Features
Genuine Chelsea replacement piston, part number 66P25 or 66-P-25
Oil-actuated design, engaging via hydraulic pressure within the PTO assembly
Listed in Chelsea D-Series PTO illustrated parts manual
Listed in Chelsea H-Series PTO illustrated parts manual
Cross-referenced as SP66-P-25
Sold individually (each)
