Cummins engine cam follower 3642503 Series is a camshaft roller lever assembly for Cummins K19, K38, K50 and NT855 diesel engines. It transfers the camshaft motion to push valves, controls intake and exhaust timing, withstands repeated impact load, widely used in construction machinery, mining equipment, generator sets and marine diesel engines.

Part numbers in this series:
3642503, 3642504, 3655377, 3081413, 3039163, 3635816

Fits: Cummins K19, K38, K50, NT855 Diesel Engine
Position: Engine valve train system

What you are ordering
Price is per cam follower assembly. All part numbers are separate variants, please select the correct PN from variant options. These cam followers are not interchangeable. Different part numbers have different roller diameter, arm length and mounting dimension. Wrong selection will cause valve timing error, valve collision and engine damage.

Specifications
Type: Cam Follower / Cam Follower Lever with Roller
Material: Alloy steel + roller bearing
Feature: High hardness, impact resistance, smooth rotation
Package: Neutral packing

When to replace
Replace the cam follower when roller stuck, abnormal tapping noise, roller wear, valve timing disorder or valve train failure occurs.

Fitting notes
Strictly confirm part number before ordering. Check cam surface and clearance after installation. Use proper lubrication during assembly. Follow Cummins service manual for valve adjustment. If you are not sure which cam follower matches your engine, send us engine serial number for confirmation.

Warranty and shipping
Covered by a 12-month warranty against manufacturing defects. Orders are dispatched within 3–7 business days; DHL / FedEx delivery takes 5–10 business days. Tracking number is sent as soon as the parcel leaves our warehouse.

Note: manufacturer names and part numbers are used for identification and cross-referencing only. We are an independent aftermarket supplier and are not affiliated with, or authorised by, the original manufacturer. Please verify the part number against your engine's parts catalogue before ordering — our team is happy to help if you send us your engine model or serial number.