Caterpillar 3406C Gasket Parts Catalog

The Caterpillar 3406C is a powerhouse engine trusted in heavy-duty trucks, marine applications, and industrial equipment. To keep it operating at peak efficiency, high-quality gaskets and seals are essential. These components prevent leaks, maintain compression, and protect vital engine systems from wear. At Diesel Pro Power, we provide aftermarket Caterpillar 3406C gasket parts built for durability, precision, and long-term reliability.

Below is a complete breakdown of gasket components designed specifically for the Caterpillar 3406C.

Cylinder Head Gasket Components for Caterpillar 3406C

Cylinder Head Spacer Plate

The spacer plate sits between the cylinder head and the block on the 3406C. It ensures proper clearance and uniform clamping, preventing uneven pressure across the head gasket. During a rebuild or overhaul, replacing the spacer plate is vital for maintaining compression integrity and avoiding premature gasket failure.

Cylinder Head Gasket Set for 3406C

This set includes every gasket needed when removing or servicing the cylinder head on a Caterpillar 3406C engine. By providing a matched collection of gaskets, it eliminates guesswork and ensures that the head, coolant passages, and combustion chambers are fully sealed. It’s the go-to solution during major repairs.

Single Cylinder Head Gasket for 3406C

When only the primary head gasket needs replacement, operators can install a single gasket. This part seals the combustion chambers to maintain compression while keeping coolant and oil passages separate. On the 3406C, a reliable head gasket is critical to maintaining consistent power and efficiency under heavy loads.

Cooling System Gaskets for Caterpillar 3406C

Aftercooler Gasket

The Caterpillar 3406C uses an aftercooler to reduce intake air temperatures, boosting power and fuel efficiency. The aftercooler gasket ensures an airtight seal, preventing leaks that can disrupt airflow. A faulty gasket here can reduce combustion efficiency and stress the turbocharger.

Fresh Water Pump Gasket Seal

This gasket seals the water pump to the engine block, preventing coolant leaks in the 3406C cooling system. Given the engine’s heavy-duty workload, any leak in the cooling system can cause overheating. A fresh water pump gasket seal is a small but vital part of keeping the cooling system reliable.

Air and Exhaust System Gaskets for Caterpillar 3406C

Intake Manifold Gasket

The intake manifold gasket seals the air passages that feed each cylinder of the 3406C. With six required per engine, these gaskets ensure consistent airflow. Replacing worn intake gaskets prevents air leaks that could cause loss of power, poor fuel economy, or irregular combustion.

Exhaust Manifold Gasket

The exhaust manifold gasket seals the joint between the manifold and the block. On the 3406C, it prevents hot gases from escaping, which could damage nearby components or reduce turbocharger efficiency. Diesel Pro aftermarket exhaust gaskets are designed to withstand extreme exhaust temperatures.

Turbocharger Gasket

Each turbocharger on the Caterpillar 3406C requires a dedicated gasket to ensure proper sealing between the turbo and manifold. This gasket prevents exhaust leaks, protects turbo performance, and helps maintain optimal fuel efficiency.

Air Compressor Gasket

The air compressor on a 3406C may power braking systems or auxiliary equipment. Its gasket prevents leaks that would reduce system pressure. A well-maintained compressor gasket ensures consistent pneumatic function across all auxiliary systems.

Oil System Gaskets for Caterpillar 3406C

Oil Pan Gasket

The oil pan gasket seals the oil pan to the base of the 3406C engine block. It keeps oil inside the reservoir, preventing leaks that could lead to low oil pressure and potential engine failure. This gasket endures vibration and thermal cycling, making replacement critical during maintenance.

Front Cover Gasket for 3406C

The front cover gasket seals the timing cover of the Caterpillar 3406C, preventing oil leaks and contamination of internal components. Since this area is under constant oil circulation, a reliable gasket ensures long-lasting operation.

Crankshaft Seals for Caterpillar 3406C

Front Crankshaft Seal

The front crankshaft seal prevents oil leaks where the crankshaft exits the front of the engine. On the 3406C, a reliable seal is essential to maintain oil levels and prevent contamination of belts and accessories.

Rear Crankshaft Seal

The rear crankshaft seal prevents oil leaks at the back of the 3406C, where the crankshaft connects to the flywheel housing. A compromised rear seal can cause significant oil loss and contamination of the clutch or transmission. Replacing this seal during overhauls is critical for long-term reliability.

Why Choose Diesel Pro Power for Caterpillar 3406C Gasket Parts

• Trusted Worldwide – Over 40,000 satisfied customers across 180+ countries rely on Diesel Pro Power.

• Fast Shipping – All Caterpillar 3406C gasket orders ship within 24 hours with full tracking.

• Engine-Specific Catalogs – Every gasket listed here is built specifically for the 3406C, eliminating guesswork.

• Durable Aftermarket Parts – Manufactured to perform under extreme conditions, from high-heat exhaust gaskets to oil and coolant seals.

• Expert Support – Caterpillar specialists provide guidance on installation, troubleshooting, and maintenance.