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Valve Body
(View Valve Body Layout Diagram)
Cutback Valve Kit 94987-01K
Oversized Lockup Control Valve & Cutback Valve Kit 94987-05K
This kit fits '98-later models: Isuzu NPR, GMC Forward Tiltmaster, Chevrolet Forward, Nissan UD and Mitsubishi Fuso Trucks.
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Helps cure:
- TCC apply & release concerns
- TCC codes
- Engine stall on engagement
- Broken sleeve
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Tooling:
- F-94987-TL5
- VB-FIX
Oversized Pressure Regulator & Boost Valve Kit 94987-11K
This kit fits '98-later models: Isuzu NPR, GMC Forward Tiltmaster, Chevrolet Forward, Nissan UD and Mitsubishi Fuso Trucks.
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Helps cure:
- Delayed engagement
- Soft shifts
- Low line pressure
- High line pressure
- Harsh shifts
- No lockup
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Tooling:
- F-94987-TL11
- VB-FIX
Oversized Secondary Regulator Valve Kit 94987-17K
Fits '98-later models: Isuzu NPR, GMC Forward Tiltmaster, Chevrolet Forward, Nissan UD and Mitsubishi Fuso trucks.
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Helps cure:
- Overheating
- Loss of power
- Bushing failure
- Planetary failure
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Tooling:
- F-94987-TL17
- VB-FIX
Tech Resources
FEATURED
December 12, 2014
Valve Body Layout
Aisin AW 450-43LE Valve Body Layout
January 25, 2023
Uncovering the Root Cause of Pressure & Complaints – The Critical Role of Solenoid Modulator & AFL Valves
Maura Stafford