Address problematic blowby issues on your Caterpillar 3406E single turbo engine with the Kustom Truck Breather Tube Modification Kit, specifically designed for engines with 2WS and 1LW serial number prefixes. The OEM breather tube location on the side of the engine block is prone to excessive blowby, but this kit relocates the breather outlet to a better-designed Genuine OEM Caterpillar valve cover at the top of the engine, significantly improving efficiency and reducing blowby. Available in two configurations, the Base Kit provides essential components for the relocation, while the Upgrade Kit includes additional parts for a comprehensive solution. The Base Kit includes a Genuine OEM Caterpillar Valve Cover with blowby outlet, a blowby tube, a tube clip, a hose clamp, and a cap to seal the original block location. The Upgrade Kit encompasses all Base Kit components, plus a blockoff plate for the cylinder block, a manifold to relocate the atmospheric pressure sensor, O-rings, and necessary hardware. Ideal for mechanics and fleet owners upgrading heavy-duty trucks like Peterbilt, Kenworth, Freightliner and Western Star, this kit ensures reliable performance and precise fitment. Note: This kit is not compatible with high-mount secondary fuel filter bases mounted to the cylinder head; relocation to the standard mid-block mounting position is required. Confirm compatibility with your engine configuration by contacting Kustom Truck for fitment verification. Improve your Caterpillar engine’s reliability with this precision-engineered breather tube modification kit, crafted for durability and precision.
Standard Kit Includes:
• (1) Genuine OEM Caterpillar Valve Cover (with Blowby Outlet)
• (1) Blowby Tube
• (1) Blowby Tube Clip
• (1) Hose Clamp
• (1) Cap Plug for Stock Breather Tube Connection Port
• (1) Genuine OEM Caterpillar Valve Cover (with Blowby Outlet)
• (1) Blowby Tube
• (1) Blowby Tube Clip
• (1) Hose Clamp
• (1) Cap Plug for Stock Breather Tube Connection Port
Premium Kit Includes:
• (1) Genuine OEM Caterpillar Valve Cover (with Blowby Outlet)
• (1) Blowby Tube
• (1) Blowby Tube Clip
• (1) Hose Clamp
• (1) Cover Plate (Replaces Stock Breather Assembly on Cylinder Block)
• (1) Manifold (Relocates Atmospheric Pressure Sensor)
• O-Rings
• Hardware
• (1) Genuine OEM Caterpillar Valve Cover (with Blowby Outlet)
• (1) Blowby Tube
• (1) Blowby Tube Clip
• (1) Hose Clamp
• (1) Cover Plate (Replaces Stock Breather Assembly on Cylinder Block)
• (1) Manifold (Relocates Atmospheric Pressure Sensor)
• O-Rings
• Hardware
Key Features:
• Breather tube modification kit for Caterpillar 3406E single turbo engines (2WS, 1LW prefixes)
• Relocates problematic OEM blowby outlet to top-mounted valve cover to reduce excessive blowby
• Available in Base Kit (with cap) or Upgrade Kit (with blockoff plate, manifold, O-rings, hardware)
• Includes Genuine OEM Caterpillar valve cover for superior design and reliability
• Not compatible with high-mount secondary fuel filter bases; requires mid-block relocation
• Note: Confirm engine and fuel filter compatibility with Kustom Truck
• Engineered for precise fitment and durable performance
• Breather tube modification kit for Caterpillar 3406E single turbo engines (2WS, 1LW prefixes)
• Relocates problematic OEM blowby outlet to top-mounted valve cover to reduce excessive blowby
• Available in Base Kit (with cap) or Upgrade Kit (with blockoff plate, manifold, O-rings, hardware)
• Includes Genuine OEM Caterpillar valve cover for superior design and reliability
• Not compatible with high-mount secondary fuel filter bases; requires mid-block relocation
• Note: Confirm engine and fuel filter compatibility with Kustom Truck
• Engineered for precise fitment and durable performance
Improve your Caterpillar 3406E’s reliability with Kustom Truck Parts’ Breather Tube Modification Kit, crafted for durability and precision.
1 Year
