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Intake Manifold Boot for Yamaha WR450F & YZ450F (2003-2005) | OEM 5XD-13597-00
Intake Manifold Boot for Yamaha WR450F & YZ450F (2003-2005) | OEM 5XD-13597-00
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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.
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Fitment FAQ
Will this part fit my specific model and year?
This intake manifold is intended for Direct replacement for Yamaha 450cc 4-stroke racing engines. Please verify your OEM part number and intake diameter.; Fitment Years; Replaces OEM Part #; Yamaha; YZ450F; 2003 – 2005; 5XD-13597-00. Listed year information includes 2003–2005, 2003–2006, 2003, 2005, 2006. It is best matched to original part number(s) 5XD-13597-00, 2003-2005, 5XD-13597-00-00. Key physical/spec details from the product data include Direct replacement for Yamaha 450cc 4-stroke racing engines. Please verify your OEM part number and intake diameter., Inner Diameter: 47mm (1.85"), 450cc. Use the compatibility table and product photos together before ordering.
Do I need to match the OEM part number?
Yes. Match your original part number to 5XD-13597-00, 2003-2005, 5XD-13597-00-00 before purchase. For this intake manifold, also compare the bolt spacing, intake port shape, carb-side inner diameter, vacuum nipple position, and gasket shape. This is especially important for Yamaha WR450F/YZ450F models because similar model names can use different parts by year or trim.
What models or situations does this part not fit?
Do not order this intake manifold for machines outside the listed compatibility, or for units with different port shapes, bolt spacing, carb-side diameter, or vacuum nipple locations. If your original part number does not cross-reference with 5XD-13597-00, 2003-2005, 5XD-13597-00-00, treat the fitment as unconfirmed. Model years outside 2003–2005, 2003–2006, 2003, 2005, 2006 should be verified separately. Do not rely only on the model name or engine size.
What should I check before ordering?
Before ordering, compare your original part with the photos and check the bolt spacing, intake port shape, carb-side inner diameter, vacuum nipple position, and gasket shape. Confirm OEM/cross-reference number(s): 5XD-13597-00, 2003-2005, 5XD-13597-00-00. Recheck listed specs such as Direct replacement for Yamaha 450cc 4-stroke racing engines. Please verify your OEM part number and intake diameter., Inner Diameter: 47mm (1.85"), 450cc. If any connector, mounting point, size, or year detail is different, confirm fitment before installation.