Engine Overhaul Kit

Parts for Caterpillar 3412E – Engine Overhaul Kit Section

The Caterpillar 3412E engine represents one of the most advanced variations of the 3412 series, incorporating electronic control systems, enhanced fuel efficiency, and improved emissions compliance compared to earlier models. With a proven track record in marine propulsion, offshore operations, and heavy industrial power generation, the 3412E remains a preferred choice for operators seeking reliability and modern performance in a high-horsepower diesel engine.

To ensure these engines maintain their performance over decades of operation, scheduled overhauls are essential. Our rebuild kits for the Caterpillar 3412E are designed with exact-fit components, matched to arrangement numbers and serial prefixes, allowing operators to confidently restore engines to factory-level condition.

Rebuilt Kit for Caterpillar 3412E – 15.5:1 Compression Ratio (Early Serial Range)

This rebuild kit is specifically designed for Caterpillar 3412E engines configured with a 15.5:1 compression ratio, matched to the early production serial range. This compression ratio is engineered to maximize combustion efficiency and torque output, making it ideal for vessels and power generation systems requiring consistent high-load performance.

Features

• Complete piston, liner, ring, and gasket coverage for a major in-frame overhaul.

• Built for engines in early production with 15.5:1 compression.

• Restores full horsepower and fuel efficiency while extending service life.

Compatible Arrangements

1539108, 1539109, 1539110, 1539111,
1765663, 1765664,
1765732, 1765733,
1771644, 1771645, 1771646, 1771647, 1771648, 1771649, 1771651,
1833879, 1833881, 1833882, 1833885,
1919428, 1919429,
1999758, 1999759

Serial Number Prefix

9PW (1–652)

Rebuilt Kit for Caterpillar 3412E – 15.5:1 Compression Ratio (Later Serial Range)

This overhaul kit also supports Caterpillar 3412E engines with the 15.5:1 compression ratio, but is intended for later production engines with updated serial coverage. It offers the same reliability and durability as the early version but is matched to engines manufactured after the initial production run.

Features

• Provides pistons, liners, bearings, seals, and gaskets for a complete in-frame rebuild.

• Matches later-production specifications of the 3412E.

• Optimized for engines with sustained heavy-duty use in marine and industrial applications.

Compatible Arrangements

1539108, 1539109, 1539110, 1539111,
1765663, 1765664,
1765732, 1765733,
1771644, 1771645, 1771646, 1771647, 1771648, 1771649, 1771651,
1833879, 1833881, 1833882, 1833885,
1919428, 1919429,
1999758, 1999759

Serial Number Prefix

9PW (653 and up)

Major Overhaul Gasket Set for Caterpillar 3412E

A major overhaul gasket set provides all sealing components required for a complete rebuild of the Caterpillar 3412E engine. This set ensures proper sealing of combustion chambers, coolant passages, and oil circuits during reassembly.

Features

• Designed specifically for full engine disassembly and reassembly.

• Includes head gaskets, liner seals, valve cover gaskets, O-rings, and more.

• Prevents leaks and maintains compression integrity after a complete overhaul.

Compatible Serial Number Prefixes

9KS, 9PW

In-Frame Gasket Set for Caterpillar 3412E

For operators needing only sealing components for an in-frame repair, this gasket set provides everything necessary to reseal a Caterpillar 3412E during liner replacement, head work, or partial overhaul.

Features

• Designed for partial rebuilds without requiring a complete engine tear-down.

• Includes key head gaskets, seals, and O-rings for major in-frame repairs.

• Maintains OEM-level sealing under high cylinder pressures.

Compatible Serial Number Prefixes

9BR, RLR, RTY, REA, 3JK, 7BL, 7HG, 9KS, 9PW

Why Choose Diesel Pro Power for Caterpillar 3412E Rebuild Kits

Exact Fit by Arrangement and Serial

Each Caterpillar 3412E rebuild kit is matched to the correct arrangement number and serial prefix, ensuring that every piston, liner, and gasket fits exactly as intended. This guarantees that your overhaul project goes smoothly without delays caused by incorrect parts.

Optimized for Modern Demands

The 3412E is used in critical environments where downtime is not an option. Our kits are manufactured to perform in these demanding conditions, with components tested for durability under extreme temperatures, pressures, and load cycles.

Trusted Worldwide

With over 40,000 customers across 180 countries, Diesel Pro Power has built a reputation for quality and reliability. Marine captains, industrial operators, and power generation managers rely on us to deliver high-quality rebuild kits on time, every time.

Complete Solutions in One Place

We provide everything you need for a Caterpillar 3412E rebuild—full in-frame kits, major overhaul gasket sets, and in-frame gasket sets—so you don’t need to source parts from multiple suppliers. Our integrated solutions save time and ensure compatibility.

Expert Support and Technical Guidance

Beyond supplying components, our team provides technical assistance to help you choose the right kit for your engine configuration. With Diesel Pro Power, you gain a partner dedicated to keeping your Caterpillar 3412E operating at peak performance.