Intake Manifold Boot for Yamaha WR450F & YZ450F (2003-2005) | OEM 5XD-13597-00

Product Overview

Restore the aggressive throttle response and peak horsepower of your Yamaha 450 with this premium Carburetor Intake Manifold Boot. Specifically engineered to replace OEM part #5XD-13597-00, this interface is a critical component for maintaining the high-vacuum seal required by the 450cc racing engine. Over time, heat cycles and high-intensity vibrations can cause the stock boot to harden or crack, leading to lean-running conditions that can damage your engine. Our high-quality replacement ensures a perfect airtight seal for optimal fuel combustion and maximum power delivery.

Product Compatibility

Direct replacement for Yamaha 450cc 4-stroke racing engines. Please verify your OEM part number and intake diameter.

Brand	Model	Fitment Years	Replaces OEM Part #
Yamaha	YZ450F	2003 – 2005	5XD-13597-00
Yamaha	WR450F	2003 – 2006	5XD-13597-00

Specifications

Precision-measured to ensure a factory-standard fit.

Feature	Detail
OEM Reference	5XD-13597-00-00
Inner Diameter	47mm (1.85")
Material	High-Grade, Oil-Resistant Synthetic Rubber
Construction	Heavy-Duty Reinforced Structure
Fitment Type	Direct Performance Replacement

Key Features

• Optimized Fuel Combustion: By providing a 100% airtight vacuum seal, this intake boot ensures the precise air-fuel mixture reaches the combustion chamber, leading to more efficient burn and increased engine power.
• 47mm Large-Bore Design: Precision-molded with a 47mm inner diameter to match factory racing specifications, ensuring zero restriction in the airflow path for maximum top-end performance.
• Heavy-Duty Durability: Manufactured from high-quality, sturdy rubber materials designed to withstand the extreme thermal stress and high-frequency vibrations of a 450cc competition engine.
• Leak-Proof Integrity: Eliminates "air leaks" that cause erratic idling, backfiring, and difficult starting—essential for maintaining reliability on the track or trail.
• Direct Bolt-On Fit: Strictly follows manufacturing standards to ensure a perfect fit with the original carburetor and engine cylinder head, making installation quick and straightforward.