URO 1157301378 Door Seal - Rear Left

Mercedes-Benz 300D Rear Left Door Seal

This URO door seal is a direct-fit sealing component for the rear left door on 1975-1976 Mercedes-Benz 300D models. It uses EPDM rubber to help block water and airborne debris while maintaining an OE-style seal profile for a clean door closure.

Key Features

• Fits 1975-1976 Mercedes-Benz 300D, rear left
• EPDM rubber construction resists heat and UV exposure
• OE-style profile helps reduce wind noise and door squeaks
• Smooth sealing surface helps prevent sticking between the door and body
• Guaranteed fitment for the listed application
• Part number: 1157301378

Detailed Description

Built for the rear left opening on Mercedes-Benz 300D vehicles, this URO door seal is shaped to match the original sealing profile and support a consistent closure feel. The material is selected to seal out moisture and road debris while holding up to everyday temperature and sunlight exposure. For buyers searching for a Mercedes-Benz 300D rear left door seal or URO 1157301378, this part matches the listed fitment and sealing function.

This part cross-references URO-000736 for the same application.

What It Helps Fix

• Water intrusion around the rear left door
• Wind noise at the door opening
• Door squeaks caused by worn sealing surfaces
• Sticking or drag between the door and body
• Debris entering the cabin through a deteriorated seal

Installation Notes

Install on the rear left door opening for the listed Mercedes-Benz 300D fitment. Clean the sealing channel and mating surfaces before installation so the new seal seats evenly and closes without distortion. Verify alignment around the full perimeter before returning the vehicle to service.

Quality Assurance

URO backs this door seal with a 24 Month Unlimited Mileage Warranty. The EPDM rubber construction and OE-style seal profile are intended to support long-term sealing performance on 1975-1976 Mercedes-Benz 300D applications. Part number 1157301378 is listed for the rear left position.