324-4060 valve tappet for engine spare part

324-4060 valve tappet for engine spare part Featured Image
  • 324-4060 valve tappet for engine spare part

Short Description:

CAT 324-4060 valve tappet with 22 mm shaft diameter, mechanical flat tappet that transfers cam force to valve assembly. It fits 3066 and S6KT engines and is widely stocked for overhaul of 320C / 320D excavators.


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description

Machined from solid carbon alloy steel, the contact face is hardened while the body maintains proper toughness to resist chipping and cracking. It rides directly on the cam lobe and converts cam motion into valve opening movement. This is a solid mechanical tappet without hydraulic lash adjuster, and valve clearance must be set manually during assembly. It matches 320C,320D,323D excavators with 3066 / S6KT engines, commonly used in quarry and earthmoving sites with heavy dust and long running hours.

Part No.: 324-4060
Name: Valve Tappet (Flat Mechanical Lifter)
Shaft Diameter: 22 mm
Alternate Part No.: 279-7859
Application: CAT 3066, S6KT engine; 320C,320D,323D excavator
Material: Alloy steel, hardened contact surface
Structure: Solid flat mechanical tappet, non-hydraulic type

Maintenance & Replacement Tips

Inspect cam lobes before removal. The tappet and cam form a friction pair; scoring on one side usually requires inspection of the other. Clean sludge and metal debris from tappet bores and lubricate outer surfaces with clean oil before installation. Rotate crankshaft manually to confirm free movement. Adjust valve lash strictly per service manual after assembly. Listen for persistent valve tapping noise on initial startup.

FAQ 

Q: Is 324-4060 a hydraulic lifter?
A: No, it is a solid flat mechanical tappet. Manual valve lash adjustment is required after fitting.

Q: How many tappets does one 3066 engine need?
A: The quantity depends on total intake and exhaust valves, order as a full set for overhaul.

Q: Can lightly scratched tappets be polished and reused?
A: Polishing is not recommended. It distorts flatness, accelerates cam wear and ruins valve lash setting.

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