4D1138 Valve-Inlet for Caterpillar

4D1138 is an engine inlet valve for Caterpillar equipment and Caterpillar engines. The part is used in the intake side of the engine valve train, where it controls the passage of intake air into the cylinder during engine operation.

This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts). The supplied part number is 4D1138; the same number may also be written in hyphenated form as 4D-1138.

Fitment

The inlet valve is listed for the following Caterpillar equipment and engine models:

• Caterpillar 826C earthmoving compactor
• Caterpillar 815B earthmoving compactor
• Caterpillar 3116 engine
• Caterpillar 3126 engine
• Caterpillar 3126B engine
• Caterpillar 3176C engine
• Caterpillar 3196 engine
• Caterpillar 3304 engine
• Caterpillar 3306 engine
• Caterpillar 3406 engine

Fitment should be checked against the engine model and the part number installed on the equipment. The listed applications include both complete machines and engines, so the machine model alone may not identify the required valve configuration.

The part is identified for use in Caterpillar earthmoving compactor applications and Caterpillar engine-machine applications. It is an intake-side valve, not an exhaust valve. Installation position is in the cylinder head valve assembly on the engine intake passage.

Cross-reference numbers

• 4D1138
• 4D-1138

4D1138 and 4D-1138 are number formats associated with the same inlet-valve reference. The hyphenated format separates the prefix and numeric portion, while the unhyphenated format is used as the SKU shown for this part.

Specifications

The dimensions and weight above are the values provided for the listed product record. They should not be treated as a substitute for checking the valve against the removed component, engine documentation, or the applicable parts identification data.