The 1987 Toyota 4Runner tailgate window is a manually operated rear window system that provides access to the cargo area. This manual covers operation, maintenance, troubleshooting, and repair procedures for the tailgate window mechanism. The system includes window glass, manual crank mechanism, regulator assembly, weatherstripping, and locking components.
Key components: Manual window crank, window regulator assembly, tailgate glass, weather seals, locking mechanism, and mounting hardware.
| Component | Description |
|---|---|
| Manual Crank Handle | Used to raise and lower tailgate window |
| Window Regulator | Mechanism that converts crank motion to window movement |
| Tailgate Glass | Tempered safety glass for rear window |
| Weatherstripping | Rubber seals to prevent water and air leaks |
| Lock Mechanism | Secures tailgate and window in closed position |
| Mounting Brackets | Hardware securing regulator to tailgate |
| Window Channels | Guides for smooth window operation |
| Balance Springs | Assist in window movement and positioning |
Proper operation techniques for manual tailgate window.
WARNING! Do not force crank if window binds. Stop immediately and inspect for obstructions.
Regular maintenance ensures smooth operation and longevity.
CAUTION! Use only silicone-based lubricants. Petroleum products can damage rubber components.
Manual crank system with scissor-type regulator mechanism.
Operation: Insert crank, turn clockwise to raise, counterclockwise to lower. Lock mechanism secures window when closed.
Regulator: Converts rotary motion to linear movement. Balance springs assist with window weight. Window channels guide glass movement. Weather seals prevent water intrusion and reduce noise.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Window binds or sticks | Dirty channels or worn rollers | Clean and lubricate channels; replace worn components |
| Window won't stay up | Worn regulator or broken spring | Replace regulator assembly |
| Water leaks | Damaged weatherstripping | Replace weather seals around window perimeter |
| Excessive effort to operate | Lack of lubrication | Lubricate all moving parts with silicone spray |
| Window off track | Loose mounting or damaged guides | Realign window and tighten mounting hardware |
Step-by-step procedures for common repairs.
WARNING! Always support glass during repair to prevent falling and breakage.
Important safety information for operation and maintenance.
Genuine Toyota parts recommended for replacement.
| Part Number | Description | Application |
|---|---|---|
| 68210-89105 | Window Regulator Assembly | Manual tailgate window |
| 68140-89105 | Window Glass | Tailgate replacement glass |
| 68250-89105 | Weatherstrip Set | Complete seal kit |
| 69210-89105 | Crank Handle | Manual window operator |
Original equipment components covered by Toyota warranty. Aftermarket parts may have separate manufacturer warranties. Consult dealer for specific coverage details.
For technical assistance or parts information, contact Toyota Customer Service at 1-800-331-4331 or visit your local Toyota dealership. Online resources available at www.toyota.com.
Service Hours: Monday-Friday 8:00 AM - 8:00 PM EST