Description

Overview

The Kenworth rear upper engine mount supports and isolates the engine in compatible heavy-duty Kenworth applications. It suits the K066-421 style mounting arrangement used across selected T600, T800, T2000 and C500 trucks, where the existing upper mount and mating lower support match.

Features

• Rear upper engine support position
• Rubber isolation element for engine movement and vibration
• Single central mounting hole
• Pairs with the corresponding lower engine mount

Specifications and Materials

Mounting hole diameter: approximately 20.6mm.

Construction uses a moulded rubber isolation section with metal support components.

Part number: 500.552.

See the manufacturer technical engine mount information

Compatibility and Fitment

Suitability includes selected Kenworth T600, T800, T2000 and C500 applications using the matching rear engine support arrangement. Compare the existing mount shape, central hole, upper and lower mount configuration and original reference before fitting.

These cross-references show where this part replaces the part numbers and applications listed. Some installations may need minor changes.

K066-421, K066421, M17409, S-20078, S20078, 11541

Related Parts

Check the related service parts below against the trailer setup before ordering.

Compliance and Safety

Support the engine correctly before removing the mount. Inspect the mating lower mount, mounting surfaces and fasteners for wear or distortion, then tighten the engine support assembly to the vehicle manufacturer’s requirements.

Trailer Applications

The Kenworth rear upper engine mount suits heavy-vehicle engine support repairs where the existing K066-421 style upper mount has cracked, compressed or deteriorated and the surrounding mounting arrangement remains serviceable.

Cross-reference and Suitability

This part cross-references to or suits the following equivalent part numbers and compatible alternatives:

Why Choose ICS Trailers

Engine mounts that look similar can differ in position, dimensions and the lower support they pair with. Before ordering, compare the old mount against the K066-421 reference, central mounting hole and rear upper position. ICS Trailers can also help identify the matching lower mount when both halves of the engine support need attention, particularly where the old rubber has compressed enough to make visual comparison difficult.

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