CAT 6I3066 Cylinder Head Gasket Multi-Layer Steel Head Gasket For CAT 3406

• Brand: CAT
• Model Number: 3406
• OEM Part No.: 6I3066
• Product Name: Cylinder Head Gasket / Engine Head Gasket
• Type: Two versions (Black Composite Graphite Gasket + Multi-Layer Steel MLS Metal Gasket)
• Fit Engine: CAT 3406 Inline 6 Cylinder Diesel Engine
• Application: CAT heavy trucks, generator sets, excavators, loaders, industrial stationary power units

1. Two optional materials to meet different overhaul demands: graphite composite gasket for standard repair, MLS multi-layer steel gasket for high-load, high-temperature heavy-duty working conditions
2. Excellent pressure resistance, heat resistance and blowout resistance, effectively prevent cylinder pressure leakage, coolant and engine oil mixing
3. 1:1 OEM hole position and outline, OEM reference number 6I3066, perfect fit CAT 3406 cylinder block and cylinder head, direct installation without cutting or trimming
4. Complete supporting top overhaul kit, match with CAT 3406 valve stem oil seals, injector sleeve seals and O-ring kit for full engine top end rebuild

CAT 6I3066 cylinder head gasket is installed between engine cylinder block and cylinder head, the most critical sealing component of the upper engine assembly. It isolates combustion chambers, water jackets and oil passages to avoid gas blow-by, water-oil cross leakage and engine overheating failure.

During CAT 3406 engine cylinder head disassembly, valve repair or turbo overhaul, the 6I3066 head gasket must be replaced as a mandatory consumable part to ensure long-term stable sealing performance.

We supply parts for Kubota, Cumm ins, CAT, Perkins, Yanmar, Isuzu, Komatsu, Mitsubishi, Hino, Nissan, Vo lvo, Deutz, Doosan, Daewoo, John Dee re, Scania, Hyundai, JCB etc.

Shipping: Sea freight, air freight and international express are all available. Goods will be arranged for shipment promptly after payment confirmation.

Tax Notice: All import duties and local destination taxes shall be borne by the buyer. Please verify local customs regulations in advance.

1. What is the difference between graphite gasket and MLS steel gasket for CAT 3406 Part 6I3066?

   Graphite composite gasket: cost-effective, suitable for general working environment; MLS multi-layer steel gasket: stronger anti-burst and high temperature resistance, ideal for overloaded, high-hour heavy equipment.

2. When must the 6I3066 cylinder head gasket be replaced?

   Engine overheating, white smoke from exhaust, coolant loss without external leak, oil emulsification, cylinder pressure drop during compression test.

3. Installation key points

   Clean the sealing surface completely, follow factory torque specification for cross-tightening in multiple passes to avoid gasket deformation and blowout.