Description
Window regulator mechanism for the left rear window for Peugeot 307 vehicles. Rear, driver side. Manual window operation.
Product Overview
This manual left rear window regulator (driver side) is a direct-fit replacement designed for Peugeot 307 models. Built as a mechanical assembly that guides and supports the glass, it restores smooth, reliable raising and lowering of the rear window when electric regulators are not used. Ideal for professional mechanics and DIY enthusiasts who search by part number (9223A1) to find the correct component quickly.
Key Features And Benefits
- Direct Fit For Peugeot 307 (Phase 1 / Phase 2) — engineered to match original mounting points and movement geometry.
- Manual Operation — Simple, robust design with no motor electronics to fail.
- Compact Assembly — Includes arms, sliders and mounting points needed for straightforward replacement.
- Cost-Effective Repair — Restores window function without needing electrical diagnostics or programming.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Peugeot 307 (Phase 1 / Phase 2)
- Product Codes: 9223A1
- Other Numbers: No additional OEM numbers available
How The Part Works
The regulator is a mechanical linkage that converts rotary motion from the window crank into vertical travel of the glass. It supports the window in its guide rails and keeps the glass aligned during movement. Wear or damage to sliders, pivots, or the guide channels leads to noisy or binding operation and eventually loss of function.
Common Failure Modes And Why It Fails
- Wear Of Plastic Sliders And Guides: Repeated use causes abrasion and play, resulting in free play, rattling or jamming.
- Corrosion: Water ingress into the door cavity causes rust on metal parts and seizure of moving joints.
- Mechanical Damage: Impact or repeated forceful use can bend arms or break mounting points.
- Fastener Or Clip Failure: Plastic clips and retainers become brittle with age and can fail, allowing the regulator to detach from the glass or door panel.
Replacement Procedure (Summary)
Recommended for experienced mechanics or competent DIYers. Typical steps:
- Remove interior door trim and any water shields to access the regulator.
- Support the window glass in the fully raised position (use tape or a helper) and mark its alignment to help refit.
- Disconnect the crank/handle and remove any retaining bolts securing the regulator and glass.
- Carefully detach the glass from the regulator and secure it out of the way.
- Remove the old regulator assembly, transfer any necessary hardware, and fit the new regulator in the same orientation.
- Refit the glass to the new regulator, check alignment, and test smooth operation before reassembling door trim.
Recommendations For Installation
- Use New Fasteners And Clips Where Possible: Replace brittle plastic clips and worn bolts to ensure a secure fit.
- Lubricate Guide Rails And Pivot Points: Use a suitable white lithium or silicone grease on metal-to-metal and sliding surfaces to reduce noise and wear.
- Check Door Seals And Drainage: Ensure door drains are clear and seals intact to prevent future corrosion from water ingress.
- Test Before Final Reassembly: Verify smooth, full travel and correct glass alignment before reinstalling trim panels.
- Follow Safety Practices: Wear gloves and eye protection. Support the glass securely while working to avoid breakage or injury.
Why Choose This Part
This left rear manual window regulator (9223A1) offers a straightforward, cost-effective way to restore window function on Peugeot 307 vehicles without the need for electrical diagnostics. Clear fitment to the driver-side rear door and compatibility with both early and later 307 phases make it an efficient part to keep in stock for repair shops and independent mechanics.







