In Chrysler 845RE and ZF8HP45/55/70 units, the variable force solenoids control clutch apply/release, torque converter clutch apply/release and line pressure. The priming valve insures proper flow and pressure to the solenoids, and is especially crucial during hot conditions and low pressure. Low solenoid feed pressure at idle can create delayed engagement or wrong gear starts. This priming valve also limits the maximum pressure to all the solenoids. Excessive solenoid feed pressure can flood the solenoids causing gear ratio codes, harsh up/down shifts and excessive line pressure. Reconditioning the bore and installing Sonnax oversized priming valve kit 35740-21K eliminates bore wear and stops leakage for proper solenoid pressure control.

Hardcoat anodized valve combats premature wear
Annular grooves help center the valve in the bore to resist wear

More From This Category

MANLEY Valve, Custom, Titanium, .3415 in. Stem Dia, Set of 8

MANLEY Valve, Custom, Titanium, .3415 in. Stem Dia, Set of 8

$2,293.03

COMP Cams Valve, Sportsman, Stainless Steel, Exhaust, For Chevrolet Small Block, 1.600 in. Head, 5.111 in. Length, Each

COMP Cams Valve, Sportsman, Stainless Steel, Exhaust, For Chevrolet Small Block, 1.600 in. Head, 5.111 in. Length, Each

$33.56

MANLEY Valve, Race Master, Exhaust, Bead Loc, 1.575 in. Head Dia, 0.3125 in. Stem Dia, 5.125 in. Length, For Chrysler HEMI, Each

MANLEY Valve, Race Master, Exhaust, Bead Loc, 1.575 in. Head Dia, 0.3125 in. Stem Dia, 5.125 in. Length, For Chrysler HEMI, Each

$50.05

MILODON Valves, Exhaust, Race, Stainless Steel, 1.625 in. Diameter, For Chevrolet, Small Block, 350, 383, 400, Set of 8

MILODON Valves, Exhaust, Race, Stainless Steel, 1.625 in. Diameter, For Chevrolet, Small Block, 350, 383, 400, Set of 8

$414.64

MANLEY Valve, Street Master, Intake, 2.25 in. Head Dia, 0.3415 in. Stem Dia, 5.244 in. Length, BBC, Set of 8

MANLEY Valve, Street Master, Intake, 2.25 in. Head Dia, 0.3415 in. Stem Dia, 5.244 in. Length, BBC, Set of 8

$299.37