This Intake Elbow Kit (7W3144) is a high-quality, direct-replacement component for Caterpillar C15, C16, and 3406 engines. It provides a sealed, secure connection between the intake manifold and the turbocharger plumbing, ensuring consistent airflow and proper turbo boost pressure.

Designed to match OEM fit and performance standards, this kit is commonly used during turbo or intake system servicing to prevent air leaks that can cause power loss, poor fuel economy, and engine inefficiency.

Kit Components:

• (1) Heavy-duty intake elbow

• (2) O-rings for sealing surfaces

• (2) Lock tabs to prevent bolt loosening from vibration

• (2) Bolts for secure installation

Applications:

• Caterpillar C15 (single and twin turbo)

• Caterpillar C16

• Caterpillar 3406E

OEM Reference Number:

• 7W3144

This intake elbow is typically mounted on the cylinder head and connects to the charge air system. The included O-rings ensure airtight sealing, while the locking tabs help prevent bolt backing out under heavy engine vibration — a common issue in high-horsepower diesel applications.

Ideal for overhaul shops, fleet maintenance, and diesel rebuilders, this kit is essential when replacing or upgrading the air intake system on CAT heavy-duty engines.