4L30E Automatic Transmission Solenoid Kit for 1990-1999 Applications 99121
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This new five-solenoid service kit replaces the major electronic control solenoids in compatible 1990-1999 4L30E automatic transmissions.
Product Details
- One band-apply/low-band solenoid
- One combined 1-2 and 3-4 shift solenoid with black O-rings
- One 2-3 shift solenoid with brown O-rings
- One torque-converter-clutch/lock-up solenoid
- One EPC pressure-control solenoid
- Designed to service compatible 4L30E valve bodies as a set
Fitment and Compatibility
The 4L30E was used in selected BMW 3/5 Series, Isuzu Trooper/Rodeo, Honda Passport, Opel Omega and Cadillac Catera applications, but not every vehicle or 4L30E revision uses the same electrical or hydraulic configuration.
Identify the transmission by tag, year, valve-body layout and original solenoid connectors before ordering. Vehicle model alone is not sufficient.
Part Number Information
Transmission family: GM 4L30E
Kit reference: 99121
No single vehicle OE number applies to this multi-solenoid aftermarket kit.
Package Contents
- Five transmission solenoids as itemized
- O-rings as supplied on the solenoids
Installation Notes
Professional automatic-transmission service is strongly recommended. Maintain strict cleanliness, verify each solenoid location and connector, replace contaminated fluid/filter as appropriate and diagnose wiring or mechanical faults before installation.
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