URO 51357140589-PRM Premium Window Regulator Rear Left without Motor

The URO 51357140589-PRM is a premium aftermarket window regulator designed for BMW E90/E91 3-Series sedan and wagon models. This rear left (driver side) regulator assembly is sold without the window motor and serves as a direct replacement for OEM part number 51357140589.

Key Features:

• Premium ball bearing pulley design reduces friction and motor load by 45%
• Exceeds OE cycle testing specifications by over 6 times—tested to over 400,000 up/down cycles
• Manufactured exclusively by URO Parts to meet or exceed OEM standards
• Improved bearing design eliminates friction inherent in standard window regulators
• Direct fit replacement for rear left position without modification
• Quality construction at a fraction of dealer part counter prices

The URO Premium designation (indicated by the PRM suffix) represents an upgraded design over standard aftermarket regulators. The ball bearing pulleys drastically reduce wear on both the regulator mechanism and window motor, extending service life significantly beyond OEM specifications. This regulator is engineered specifically for E90 and E91 sedan and wagon models—one unit required per vehicle for the rear left position.