UP39-I R Pump features:
• Compact design
• Ball bearing piston race
• Built-in lock valve for positive rudder lock
• Integral relief valve for over-pressure protection
• 3/4” tapered stainless steel shaft
• Easily accessible lock valve and shaft seal for replacement
• Cast iron cylinder rotor for greater durability and longer life
• White bezel included
• Complete with 90° adjustable fittings for 3/8” tube, except UP39-I R and UP45-I R pumps (straight fittings for 12 mm hose)
• X68 (optional) - 40894Z Chrome bezel
• KIT F (optional) - 39664Y Remote fill adapter

Specifications:
Mounting: Rear mount
Displacement/Revolution: 39 cc - 2.4 cu.in
Number of pistons: 7
Relief Valve Setting: 70 Bar - 1000 PSI
MAx Wheel Diameter: 710mm - 28"
Weight: 5kg - 11lbs

UC339-I Cylinder Balanced: the number of turns lock-to-lock is equal port to starboard or vice-versa.
UC339-I Cylinder Specifications:
Volume: 339 cc - 20.7 cu.in
Torque: 172 kgm - 14957.7 lbs.in
Output force: 1051 kg - 2316.6 lbs
Inside diameter: 50 mm - 1.97”
Stroke: 230 mm - 9”
Fittings: For 12 mm copper tube or TUR7 high pressure flex hose
Size: A= 230mm, B= 200mm, C= 164mm, D= 637mm, E= 147mm, F= 70mm, G= 110mm.