Product Overview

Crankshaft end play must be controlled so the rotating assembly can move freely without excessive axial movement. The 420D Thrust Washer is intended for replacement during diesel engine repair or rebuilding, where correct thrust-face location and washer thickness are essential to crankshaft positioning.

When matched to the correct Caterpillar 420D specification, the thrust washer works with the crankshaft and main-bearing arrangement to support axial loads while allowing a lubricated sliding surface during operation.

Product Information

• Product: 420D Thrust Washer
• Application Reference: Caterpillar 420D
• Brand: ipartkits
• Compatibility: Please confirm the engine model used in the Caterpillar 420D application before ordering.

Why This Part Matters

Excessive crankshaft end play can affect the relationship between the crankshaft, bearings, and connected drive components, while insufficient clearance can create unwanted contact and friction. A correctly matched thrust washer helps maintain the specified axial clearance and supports a stable oil film on the working surfaces.

Thickness, locating shape, and bearing-seat compatibility are therefore important selection points. During rebuilding, the washer should be checked together with crankshaft condition and the corresponding main-bearing arrangement.

Key Features

• Designed to support controlled crankshaft axial movement
• Application-specific dimensions for correct thrust-face fitment
• Supports stable crankshaft end-play setting when correctly matched
• Works with the main-bearing and crankshaft arrangement during engine operation
• Suitable for professional diesel engine repair and rebuild work
• Part-number matching support available before ordering

Fitment & Ordering Note

420D thrust washer specifications may vary by crankshaft version, main-bearing design, and required thickness. Please compare the part number and, where possible, confirm the existing washer dimensions before ordering.

Related Engine Parts

Matching main bearings, connecting rod bearings, crankshafts, oil pumps, gaskets, and other engine rebuild components may also be available for the same repair project.

Why Choose

supports distributors, repair workshops, and engine parts businesses with broad diesel engine parts coverage and professional part-number matching. Our team can help compare engine models, reference numbers, and -part photos before shipment, with worldwide supply and technical support available for mixed engine-parts orders.

Need Help Confirming Fitment?

Send us the engine model, thrust washer number, or photos of the removed parts, and our team will help check the correct replacement before ordering.