In Jatco/Nissan JF015E (RE0F11A) units, the lockup control valve operates under the direct command of the lockup control solenoid routed through a select switching valve and is also influenced via apply and release feedback balance passages. A worn bore, valve spool(s) or plunger valve assembly can cause loss of critical pressure to the sump, lube circuit, or directly into apply or release passages resulting in jerking on coastdown, harsh engagement, and high engine RPM due to no lockup.
Reconditioning the bore and installing Sonnax oversized lockup control and plunger valve kit 33741F-09K restores optimal oil pressure management within the TC clutch apply/release circuits.

Hardcoat anodized aluminum valve combats premature wear
Oversized valve reproduces OE pressure regulator function

More From This Category

MILODON Valves, Exhaust, Stainless Steel, 1.725 in. Diameter, For Chevrolet, Big Block, 396, 427, 454, 502, Set of 8

MILODON Valves, Exhaust, Stainless Steel, 1.725 in. Diameter, For Chevrolet, Big Block, 396, 427, 454, 502, Set of 8

$392.22

MANLEY Valve, Race Flo, Intake, Bead Loc, 2.02 in. Head Dia, 0.3125 in. Stem Dia, 4.955 in. Length, For Chrysler HEMI, Each

MANLEY Valve, Race Flo, Intake, Bead Loc, 2.02 in. Head Dia, 0.3125 in. Stem Dia, 4.955 in. Length, For Chrysler HEMI, Each

$142.29

MANLEY Valve, Race Flo, Exhaust, 30.5 mm Head Dia, 6.54 mm Stem Dia, 109.7 mm Length, For Mitsubishi, Set of 8

MANLEY Valve, Race Flo, Exhaust, 30.5 mm Head Dia, 6.54 mm Stem Dia, 109.7 mm Length, For Mitsubishi, Set of 8

$399.33

MANLEY Valve, Titanium, Exhaust, Bead Loc, 1.6 in. Head Dia, 0.3415 in. Stem Dia, 6.09 in. Length, Each

MANLEY Valve, Titanium, Exhaust, Bead Loc, 1.6 in. Head Dia, 0.3415 in. Stem Dia, 6.09 in. Length, Each

$320.57

MANLEY Valve, Race Series, Exhaust, 1.65 in. Head Dia, 0.3415 in. Stem Dia, 5.64 in. Length, Gen II, Each

MANLEY Valve, Race Series, Exhaust, 1.65 in. Head Dia, 0.3415 in. Stem Dia, 5.64 in. Length, Gen II, Each

$70.15