Keystone MI1350104 Front Left Power Window Regulator Without Motor

The Keystone MI1350104 is a front left (driver side) power window regulator designed as a direct OEM-style replacement for the Mitsubishi Lancer. This regulator is sold without motor, making it ideal when the motor itself is still functional and only the regulator mechanism needs replacement. It replaces OEM part number MR991325.

Key Features:

• Direct-fit OEM replacement — engineered to match original equipment shape and dimensions for a seamless installation
• Power window regulator for front left (driver) door position
• Sold without motor — reuse your existing window motor
• Designed for ES, LS, and OZ Rally trim models
• Restores smooth, reliable power window operation

Part Numbers & Cross-References:

• Keystone Part Number: MI1350104
• OEM / Mitsubishi Part Number: MR991325

This window regulator is the mechanism responsible for transferring power from the window motor to the glass, allowing the window to move up and down smoothly. If your driver-side window is moving slowly, binding, or has stopped working entirely, a worn or broken regulator is a common cause. Replacing the regulator restores full power window functionality to the door.