Symptoms:

  • Cooler rupture
  • Cooler line rupture
  • Planetary failure
  • Bushing failure

Cause:

The lube regulator valve limits cooler pressure. When the bore is worn, cooler flow and pressure may be reduced or elevated.

Correction:

Oversizing the bore with Sonnax tool kit restores roundness, concentricity and finish. Reassembly of the valve train using Sonnax hardcoat anodized valves completes the restoration to OE function.

ZF5HP19

Oversized Lubrication Valve Kit
Part No. 85755-07K


You need this if... View Instructions Find a Distributor

The ZF5HP19 lubrication valve limits cooler pressure. Depending on the extent and location of bore and valve wear, cooler flow and pressure may be reduced or elevated. Uncontrolled pressures can lead to rupture of the cooler line or of the cooler. Reduced or lost lubrication flow and pressure can lead to planetary and/or bushing failure. Installing Sonnax oversized lubrication valve kit 85755-07K will restore correct lubrication flow and pressure.

  • Restores OE lubrication valve function
  • Valves are hardcoat anodized to reduce wear

OE valve spool diameters must match dimensions noted in the illustration. This kit cannot be used to repair valve bodies with valves of other sizes.

  • Lubrication Valve
  • Plunger Valve
  • ZF5HP19 Oversized Lubrication Valve Kit 85755-07K
  • ZF5HP19 Oversized Lubrication Valve Kit 85755-07K
  • ZF5HP19 Oversized Lubrication Valve Kit 85755-07K details

You need this if...

A vacuum test at the ports indicated fails to hold the recommended minimum of in-Hg

ZF5HP19 Oversized Lubrication Valve Kit Vacuum Test Locations