Dorman 420-180 Engine Timing Belt Tensioner

Reliable Engine Timing Belt Tensioner for Chrysler, Dodge, and Plymouth

The Dorman 420-180 engine timing belt tensioner is designed to maintain proper tension on the timing belt for select Chrysler, Dodge, and Plymouth vehicles. Engineered with durable materials, this automatic hydraulic tensioner ensures consistent performance and helps prevent timing belt slippage or failure.

• Constructed from ductile iron for strength and durability
• Automatic hydraulic tensioner style for consistent belt tension
• Cast steel contact surface material for reliable operation
• Standard replacement grade for dependable performance
• Includes one tensioner; bracket and pulley not included

Durable Materials and Design for Long-Lasting Performance

The Dorman 420-180 timing belt tensioner features a robust ductile iron body that withstands engine heat and stress. Its cast steel contact surface provides a smooth interface with the timing belt, reducing wear and extending component life. This tensioner operates automatically using hydraulic pressure, eliminating the need for manual adjustments and ensuring optimal belt tension throughout engine operation.

Compatible Vehicles and Applications

This engine timing belt tensioner is compatible with various Chrysler, Dodge, and Plymouth models, including the 300M, Concorde, Intrepid, LHS, New Yorker, and Prowler. The Dorman 420-180 is a direct replacement part designed to meet or exceed OEM specifications for these vehicles, making it suitable for maintenance or repair of the valve train components.

Common Issues Addressed by the Timing Belt Tensioner

• Prevents timing belt slack that can cause engine misfires or poor performance
• Reduces risk of timing belt slipping or jumping teeth
• Helps avoid premature belt wear and potential engine damage
• Maintains proper valve timing for smooth engine operation
• Eliminates the need for manual tension adjustments with automatic hydraulic design

Installation Notes and Tips

When installing the Dorman 420-180 tensioner, ensure the engine is cool and the timing belt is properly aligned. This tensioner does not include a bracket or pulley, so reuse existing components or replace as necessary. Follow vehicle-specific service manual instructions for torque specifications and installation sequence to maintain correct timing belt tension and engine timing.

Quality Assurance and Warranty Information

Dorman provides this timing belt tensioner as a standard replacement part manufactured to meet industry standards. The 420-180 part number undergoes quality checks to ensure durability and fitment accuracy for Chrysler, Dodge, and Plymouth vehicles. Warranty coverage details can be obtained from the product documentation or authorized sources.