1984-1987 C4 RH Headlight Motor Actuator Assembly - OEM Number(s) (16500364)
Restore Reliable Headlamp Function with Direct Fit OEM-Style Replacement
Replace your failing 1984–1987 C4 Right Hand Headlight Motor Actuator Assembly with this quality reproduction of GM part number 16500364. Designed as a factory-style replacement, this actuator restores dependable operation of your retractable passenger-side headlamp. The correct three-wire plug connection ensures proper electrical interface with your C4’s relay-driven system. Durable plastic motor housing, integrated gear reduction, and factory-correct dimensions guarantee straightforward installation and reliable headlight operation.
Ideal for repairing malfunctioning, slow, or stuck headlamp assemblies, this reproduction unit delivers long-term performance while maintaining the integrity of your Corvette’s iconic appearance.
Fits Corvette Models as Follows
• 1984–1987 C4 – Passenger Side – Coupe and Convertible
Features
• Direct fit reproduction for 1984–1987 C4
• Replaces OEM number 16500364
• Passenger-side (RH) headlight motor actuator
• Includes correct 3-wire electrical connector
• Relay-driven design with factory-style gear reduction
• OE-style plastic motor housing with factory-correct mounting points
• Restores proper retractable headlamp movement and reliability
Warranty Coverage
This 1984–1987 C4 RH Headlight Motor Actuator Assembly is covered under Mid America Motorworks’ limited warranty against manufacturing defects. Retain your original purchase receipt for warranty service. Trust Mid America Motorworks to protect your restoration investment.
Because Details Matter
From reliable operation to OE-correct appearance, this Right Hand Headlamp Motor is the right choice for your C4 restoration. Mid America Motorworks provides factory-style solutions that keep your Corvette functioning and looking its best—on the road and in the garage.
Tips - Before installing new headlight motors, it is very important to check for any possible factors that may have caused failure and/or lead to your headlight motors wearing out quickly or not operating properly.
DEAD MOTOR
Malfunctioning motors may be the issue. Check if voltage is going to the motors, a good reading of the meter will pinpoint the issue. Directly connect the motor with the 12 volts from the battery, if it moves then the problem is not the motor.
HEADLIGHT BUCKET ALIGNMENT
A mis-aligned headlight bucket will cause motor failure. After removing your motors check the complete rotation of both headlight buckets from the close position to the fully opened position for any friction or hard spots where there may be problems in the rotation. Many Corvettes have been hit before causing abnormal friction in the rotation of the assembly. They should feel completely smooth where you can easily open and close the buckets. If you feel any friction or hard spots it is most likely to body interference.
BAD HEADLIGHT SWITCH CONTROL MODULE
Listen for the gears spinning. Turning the twilight function in DIC settings will usually work if the switch is the problem. If the computer does not flip up the lights look elsewhere as it may not be the switch. Test the ground and power circuit of the pop-up control for an open or poor connection.
A GEAR ISSUE
Listen if the motor is spinning, if the motor keeps running you are dealing with a stripped gear failure. Replace the motor with a new one.
Also known under these part numbers: (For reference only)
- 16500364
- 25-161754-1
- 444350R
- 48118
- 731177689636
- HM1004R