URO 1234620479 Ignition Lock Cylinder

Ignition Lock Cylinder for Mercedes-Benz

This URO ignition lock cylinder restores smooth key rotation and positive starter switch engagement when the original cylinder is worn, sticking, or no longer turning reliably. It comes with keys and is a direct-fit replacement for select Mercedes-Benz models, including 300D, 300SD, 300TD, 300SDL, 300SE, 300SEL, 420SEL, 560SEC, 560SEL, and 560SL.

Key Features

• Direct replacement ignition lock cylinder for primary ignition service
• Supplied with keys
• Built with quality cylinder and tumbler materials for smooth operation
• Helps restore proper key engagement and starter switch action
• Fits select Mercedes-Benz 300D, 300SD, 300TD, 300SDL, 300SE, 300SEL, 420SEL, 560SEC, 560SEL, and 560SL applications
• URO part number 1234620479

Detailed Description

URO part number 1234620479 is an ignition lock cylinder replacement for select Mercedes-Benz primary ignition systems. It is intended for vehicles where the original lock cylinder has worn tumblers, a rough turning feel, or inconsistent key engagement. This replacement helps restore normal operation at the ignition switch while providing a practical solution for lost ignition keys. This part cross-references 123 462 0479 and URO-010341 for the same application.

What It Helps Fix

• Key that turns hard or binds in the ignition
• Worn lock cylinder that no longer engages smoothly
• Starter switch engagement problems caused by cylinder wear
• Lost ignition keys on select Mercedes-Benz vehicles
• Intermittent ignition operation from deteriorated tumbler components

Installation Notes and Tips

Verify the vehicle’s year, model, and chassis details before ordering, especially for 300D and 300TD applications with chassis-range notes. Match the existing ignition lock cylinder configuration to confirm proper fitment on your Mercedes-Benz 300SE, 300SEL, 420SEL, 560SEC, 560SEL, or 560SL. Professional installation is recommended to ensure correct key and cylinder alignment during replacement.

Quality Assurance

URO manufactures this ignition lock cylinder using quality cylinder and tumbler materials for consistent operation and long service life. It includes a 24 month unlimited mileage warranty.