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Intake Manifold Interface Joint for Yamaha RD350 LC & YFZ350 Banshee | OEM 31K-13565-01
Intake Manifold Interface Joint for Yamaha RD350 LC & YFZ350 Banshee | OEM 31K-13565-01
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Product Overview
Restore the explosive two-stroke power of your Yamaha with this premium Carburetor Intake Manifold Interface. Specifically engineered for the RD350 LC and the legendary YFZ350 Banshee, this joint is a direct replacement for OEM part #31K-13565-01. On high-performance 2-stroke engines, the intake boot is a critical safety component; a cracked boot allows extra air to enter, causing a "lean condition" that can lead to catastrophic engine seizure. Our high-quality replacement ensures a perfect airtight seal, providing reliable operation and "new engine" throttle response.
Product Compatibility
Direct replacement for Yamaha 350cc 2-stroke parallel-twin engines. Please verify your OEM part number.
| Brand | Model | Fitment Series | Engine Type |
| Yamaha | RD350 LC | 1983 – 1985 | 347cc 2-Stroke Twin |
| Yamaha | YFZ350 Banshee | 1987 – 2006 | 347cc 2-Stroke Twin |
| Yamaha | RZ350 | 1984 – 1985 | 347cc 2-Stroke Twin |
Specifications
| Feature | Detail |
| OEM Reference | 31K-13565-01-00 |
| Material | High-Grade Synthetic Rubber & Anti-Rust Alloy |
| Characteristics | Lightweight, Colorfast, and Heat-Resistant |
| Engine Type | Liquid-Cooled 2-Stroke Twin |
| Fitment Type | Direct Performance Replacement |
Key Features
- Precision Engine Connection: Perfectly bridges the gap between the carburetor and the reed valve cage, ensuring that every drop of fuel-air mixture is delivered efficiently for "new power" performance.
- Premium Material Quality: Crafted from high-quality, lightweight materials that are naturally anti-rust and colorfast. Designed to look good and perform better over long-term use.
- Extreme Durability: Manufactured to withstand the intense vibrations and constant pressure pulses inherent in high-performance 2-stroke engines. Resists the "dry-rot" common in vintage intake boots.
- Safe & Reliable Sealing: Provides a 100% airtight vacuum seal. By eliminating air leaks, it prevents erratic idling and protects your engine's top end from the dangers of running too lean.
- Factory Standard Fit: Strictly follows the 31K-13565-01 specification for a seamless bolt-on installation, ensuring the carburetors sit at the correct factory angle and height.
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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 350cc 2-stroke parallel-twin engines. Please verify your OEM part number.; Fitment Series; Engine Type; Yamaha; RD350 LC; 1983 – 1985; 347cc 2-Stroke Twin. Listed year information includes 1983–1985, 1987–2006, 1984–1985, 1983, 1985. It is best matched to original part number(s) 31K-13565-01, 31K-13565-01-00. Key physical/spec details from the product data include 350cc, 347cc. 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 31K-13565-01, 31K-13565-01-00 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 RD350/YFZ350 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 31K-13565-01, 31K-13565-01-00, treat the fitment as unconfirmed. Model years outside 1983–1985, 1987–2006, 1984–1985, 1983, 1985 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): 31K-13565-01, 31K-13565-01-00. Recheck listed specs such as 350cc, 347cc. If any connector, mounting point, size, or year detail is different, confirm fitment before installation.