Cylinder Head

Cylinder Heads & Related Components for Caterpillar 3408E

The Caterpillar 3408E cylinder head assembly is one of the most critical components in ensuring efficient combustion, long-term durability, and reliable performance in this legendary V8 engine. A properly functioning cylinder head maintains compression, regulates airflow, and supports precise fuel delivery. Over time, wear, warping, or corrosion can compromise these functions—making high-quality replacements and related parts essential for rebuilds and top-end maintenance.

Diesel Pro Power offers a complete selection of premium aftermarket cylinder heads and related components for the Caterpillar 3408E, including bare and assembled heads, valves, guides, inserts, gasket sets, and valve train hardware. Every component is designed to meet or exceed OEM specifications, ensuring an exact fit and dependable operation under high-temperature, high-pressure conditions.

Cylinder Head (with Valves & Springs) for Caterpillar 3408E

Overview
This premium aftermarket cylinder head comes fully assembled with valves and springs installed, making it an excellent choice for a direct replacement or complete top-end rebuild. The head is precision-machined for correct compression sealing and valve alignment, ensuring consistent airflow and combustion balance across all eight cylinders.

Benefits

• Ready to install—no machine shop assembly required

• Built with high-grade materials for superior heat resistance and strength

• Ideal for quick-turnover repairs or professional rebuilds requiring guaranteed fit and function

Applications
Perfect for Caterpillar 3408E engines used in industrial, power generation, and marine settings where downtime must be minimized.

Bare Cylinder Head for Caterpillar 3408E

Overview
For rebuilders who prefer to install their own valves, guides, and springs, this new bare cylinder head provides a solid foundation. Each casting is fully machined and inspected for surface flatness, thread integrity, and coolant passage cleanliness.

Benefits

• Designed to OEM standards for reliable fitment

• Machined for correct combustion chamber volume and smooth sealing surfaces

• Compatible with OEM or premium aftermarket valve train components available from Diesel Pro Power

Cylinder Head Gasket Set for Caterpillar 3408E

Overview
A complete gasket set is essential when servicing or replacing the cylinder head. Diesel Pro Power’s gasket sets are engineered for precision sealing between the head and block, preventing combustion gas, coolant, or oil leaks.

Features

• Multi-layer, heat-resistant materials that withstand high compression loads

• Includes seals, O-rings, and washers for precombustion chambers

• Designed for complete top-end resealing with exact fit on 3408E configurations

Head Bolts & Washers for Caterpillar 3408E

Overview
Head bolts and washers maintain the critical clamp load between the head and block. Diesel Pro Power offers replacement fasteners made from high-tensile steel, ensuring proper torque retention and long service life under cyclic heat and pressure.

Benefits

• Manufactured to precise thread and length specifications

• Compatible with 3408E torque and angle requirements

• Washers distribute load evenly, preventing thread pull and gasket distortion

Intake & Exhaust Valves for Caterpillar 3408E

Overview
Valves regulate the airflow and exhaust in the 3408E’s combustion chambers. Diesel Pro Power’s premium aftermarket intake and exhaust valves are forged and ground for perfect sealing and wear resistance.

Key Features

• Designed for high-temperature stability and corrosion resistance

• Precisely machined stems and faces ensure tight sealing

• Compatible with OEM retainers, rotocoils, and guides

Recommended Service Tip:
Always inspect valve guides, seats, and springs when replacing valves to ensure proper seating and lash control.

Rotocoils & Valve Spring Assemblies

Overview
Rotocoils (or rotators) ensure even valve seating and help prevent carbon buildup. Diesel Pro Power’s rotocoils and single-spring assemblies are built to OEM dimensions for consistent rotation and spring pressure.

Benefits

• Maintains valve face integrity for extended service life

• Reduces hot spots and uneven wear on seats

• Perfect for both intake and exhaust valve configurations

Valve Guides & Inserts

Overview
Valve guides and inserts are essential for stabilizing valve motion and sealing. Diesel Pro Power offers premium replacements for both intake and exhaust applications.

Features

• Manufactured from high-strength bronze or alloyed cast iron for wear resistance

• Maintains correct valve alignment and oil control

• Inserts (valve seats) provide a hardened sealing surface to withstand continuous impact and temperature extremes

Valve Springs & Locks

Overview
Valve springs and locks maintain proper seating pressure and timing control throughout the 3408E’s high-load cycles. Diesel Pro Power’s valve springs are designed for balanced tension and fatigue resistance.

Benefits

• Consistent spring pressure to prevent valve float

• Engineered to maintain compression seal under high RPMs and heavy load

• Valve locks precision-fitted for secure retention

Precombustion Chamber Seals & Components

Overview
Precombustion chamber gaskets, O-rings, and washer seals maintain sealing integrity around the 3408E’s precombustion units. Proper sealing here prevents gas leaks, improves ignition stability, and preserves compression balance.

Benefits

• Heat- and fuel-resistant materials for long-term sealing performance

• Prevents carbon blow-by and chamber distortion

• Recommended whenever heads or chambers are removed for service

Cylinder Head Adaptor Nozzles, Push Rods & Lifters

Adaptor Nozzles
These components connect injector nozzles to the cylinder head. Diesel Pro Power supplies exact-fit adaptors designed to handle high fuel pressures and temperatures typical of the 3408E system.

Push Rods & Lifters
Push rods transfer cam motion to the rocker arms, while valve lifters (tappets) maintain smooth, accurate timing. Diesel Pro Power’s push rods and lifters are built to precise length and hardness specs to prevent wear and maintain valve timing accuracy.

Benefits

• Heavy-wall push rods for strength and vibration resistance

• Lifters hardened for reduced wear and long service intervals

• Perfect for top-end or full rebuild applications

Why Buy from Diesel Pro Power

Diesel Pro Power has earned the trust of over 40,000 satisfied customers in more than 180 countries, becoming the go-to source for premium aftermarket Caterpillar engine parts. Each 3408E cylinder head and related component in their catalog is backed by decades of diesel expertise, precision engineering, and a dedication to reliability.

The Diesel Pro Power Advantage:

• Premium aftermarket parts engineered to meet or exceed OEM standards

• Expert technical support for proper part identification and installation guidance

• Fast, secure global shipping to over 180 countries

• Simplified online ordering with real-world customer service

Whether you need a fully assembled cylinder head, a set of valves, or a complete gasket package, Diesel Pro Power delivers the quality and dependability professionals rely on.

Order your premium aftermarket cylinder head and related components for the Caterpillar 3408E from Diesel Pro Power today—and keep your engine performing at its peak for years to come.