434-4988 Major Engine Overhaul Foundational Kit for 3406B and 3406C Marine Engines{1000} Caterpillar

Engine:

3406C (S/N: 2WB1-UP)

Generator Set:

3406B GEN SET (S/N: 2WB1-UP)

3406C MARINE GS (S/N: 4061-UP)

Marine Engine:

3406C MARINE (S/N: 1SS1-UP)

Introduction

This Special Instruction is intended to provide information on the Engine Overhaul Kit Consist and detailed information on specific parts that should be used based on engine arrangements.

This Engine Overhaul Kit may contain extra parts and extra quantities due to the variety of engine arrangements assigned to a given kit. Refer to the corresponding Parts Manual or Disassembly and Assembly manual in Table 1.

Note: This Kit may contain upgraded parts. These upgraded part numbers may be different than what you have in the parts manual or engine, but these parts have been technically reviewed for compatibility with your application.

Note: This kit contains gasket kits and includes additional parts needed to perform an engine overhaul.

Note: This kit does not contain rod bearings, main bearings, and thrust plates.

Note: For assistance with technical questions, contact your local Cat dealer.

Note: For more information, visit us at catmarinesupport.com.

Note: For access to our website you can scan the QR code below with a QR enabled device.

Illustration 1	g03319969

Reference Material

Note: For ordering reference material contact your local Cat dealer.

3406C 434-4988 Major Overhaul Kit Consist

Note: For assistance or technical questions contact your local Cat dealer.

Note: Refer to Illustration 2 for location of gasket kits.

3406C Engine Gasket Kit Locations

Illustration 2	g03406156
(1) Rear Structure ( 232-3679 Gasket Kit ) (2) Single Cylinder Head ( 434-1858 Gasket Kit ) (3) After Cooler and Lines ( 434-0877 Gasket Kit ) (4) Fuel System ( 433-7712 Gasket Kit ) (5) Expansion Tank ( 433-7869 Gasket Kit ) (6) Front Structure ( 434-2402 Gasket Kit ) (7) Central and Lower ( 434-5056 Gasket Kit ) (8) Oil Cooler and Lines ( 434-4989 Gasket Kit )

Gasket Kit Consists

Rear Structure (232-3679 Gasket Kit)

Refer to Illustration 2.

Fuel System (433-7712 Gasket Kit)

Refer to Illustration 2.

Expansion Tank (433-7869 Gasket Kit)

Refer to Illustration 2.

Aftercooler and Lines (434-0877 Gasket Kit)

Refer to Illustration 2.

Single Cylinder Head (434-1858 Gasket Kit)

Refer to Illustration 2.

Front Structure (434-2402 Gasket Kit)

Refer to Illustration 2.

Oil Cooler and Lines (434-4989 Gasket Kit)

Refer to Illustration 2.

Central and Lower (434-5056 Gasket Kit)

Refer to Illustration 2.