The CP3959 series of concentric slave cylinders offer a lightweight die cast Aluminium body and are hydraulically self contained with high temperature seals. Interchange- able with SAAB cylinder part no, 4776308 (8729840).

Features

• Interchangeable with SAAB 900 Slave Cylinder Part No: 4776308 (8729840)
• Die Cast Aluminium Alloy Body
• Aluminium Alloy Piston
• 18mm or 12mm Max Stroke Options
• Use with PRF660, 600 or high quality brake fluids
• Cylinders are supplied with release bearings in a choice of three fulcrum diameters
• M12 x 1.00 Hydraulic Threads
• 59.12mm Port Height
• Weighs 0.43kg
• Effective Area - 920mm²
• Max Pressure 8.6 N/mm²
• Assembly mounting - 3 holes on a 74.00mm PCD
• Fittings to be tightened to 28Nm (21ft/lb)

Spare Parts

• CP3759-3 - Replacement Seat Kit
• CP3859-15 - 7/16" (Aluminium Adaptor) for -04 Hosing
• 305-04-M121Z1
• CP3859-16 - 3/8" (Steel Adaptor) for -03 Hosing
• 305-03-M121Z1

Part Numbers

• For Standard Bearing Configuration (18mm Stroke)
  Bearing housed in the piston via the outer race. The inner race rotates. Suitable for high speed applications.
• CP3959-38 = Ø38mm Fulcrum.
• CP3959-50 = Ø50mm Fulcrum.
• CP3959-54 = Ø54mm Fulcrum.
• For Reduced Length Configuration (12mm Stroke).
  Bearing housed on piston via the inner race with outer race rotating.
• CP3959-1250 = Ø50mm Fulcrum.
• CP3959-1254 = Ø54mm Fulcrum.

Installation

Ensure that the unit is installed in the correct position, with the bleed port uppermost as shown in the installation drawings (below). all fittings intended to seat at the bottom of the hydraulic ports must have an included angle of 90°.

**Note: When large diameter splines are used please check clearance of the spline in the slave cylinder body. Larger splines also have an increased driven plates hub boss. Please check the clearance of the driven plates at maximum slave travel. See the clutch installation drawing for details.