4156001 Meritor Equivalent Caliper Tappet and Dust Boot

What does a caliper tappet and dust boot do?

This caliper tappet and dust boot functions as a critical sealing component within the pneumatic air disc brake system. It protects the internal movement mechanisms from contaminants such as road salt, water, and debris, ensuring the consistent operation of the brake caliper.

Compatible vehicles and systems

This component is compatible with Meritor systems and is fitted to heavy commercial vehicles such as Renault Trucks, Scania, and Volvo. It serves as an equivalent part for maintaining optimal braking performance in these vehicle types.

Installation and maintenance

For professional installation, technicians should ensure the pushrod diameter matches the boot's inner collar dimensions perfectly. It is recommended to inspect these components during every scheduled brake service or when replacing brake pads to prevent premature wear of internal caliper parts.

Maintenance guidance

Maintaining correct seal integrity is vital for the longevity of the pneumatic brake system. Ensuring a clean mounting surface during replacement helps prevent air leaks and maintains consistent pedal feel for the driver.

OE cross-reference

4156001 (Brake Caliper Tappet and Dust Boot) is the equivalent of the Meritor, Renault Trucks, Scania and Volvo OE numbers. This part directly replaces Meritor OE number MCK1309. It also replaces Renault Trucks OE number 5001866398, Scania OE number 2272699 and Volvo OE number 85109891.