KM KM40 90-Degree Fuel Fitting - 1/8" NPT to 1/4" Barb - Universal Kart Class
$6.92 USD
Sale price
$6.92 USD
Regular price
Precision Fuel Routing for Your Racing Go Kart
When you are pushing a racing go kart to the absolute limit, fuel starvation caused by kinked lines is a catastrophic failure you cannot afford. Proper fluid and cable management in tight engine bays is what separates professional builders from amateurs. The KM40 90-degree fuel fitting provides a sharp, clean directional change that eliminates tangles and prevents fuel line pinching. Whether you are running a high-compression Briggs Animal, a modified Honda clone, or assembling a custom chassis, maintaining steady fuel pressure is the baseline for securing podium finishes.
Built for Durability: Outlasting Standard Cycle Parts
Unlike cheap plastic alternatives or generic cycle parts that degrade and crack under heavy track vibration, this KM40 elbow fitting is engineered for unrelenting durability. Machined from high-strength steel, it features a precision-cut 1/8-inch NPT thread that bites securely into your carburetor, fuel pump, or gas tank ports, ensuring a permanent, leak-proof seal. The 1/4-inch barb grips the fuel hose with relentless tension, actively resisting the extreme harmonic vibrations that typically rattle standard straight fittings loose during a grueling main event.
Seamless Integration with Comet Parts and Engine Bearings
A high-performance kart engine operates as a complete, synchronized ecosystem. When you tear down a block to upgrade your engine bearings or install high-flow comet parts, your fuel delivery system must be optimized to keep up with the increased volumetric demand. This 90-degree adapter routes fuel efficiently around chassis obstacles, exhaust headers, and jackshafts, ensuring that your engine receives a consistent, uninterrupted flow of combustible energy. It is the perfect solution for cramped chassis layouts where straight fittings would foul against the frame or engine shroud, allowing for quicker diagnostics and rapid engine swaps in the pits.
Technical Specifications & Track-Tested Reliability
- 1/8-Inch NPT Thread: Tapered thread design bites securely into carburetors and fuel pump ports for a guaranteed leak-free seal.
- 1/4-Inch Barbed End: Aggressive barb profile grips 1/4" ID fuel lines firmly, preventing vibration-induced pull-outs at high RPMs.
- 90-Degree Elbow Geometry: Routes fuel efficiently around tight engine blocks, eliminating kinked hoses and preventing fuel starvation.
- Vibration Resistant Construction: Engineered specifically to withstand the punishing harmonics and G-forces of competitive kart racing.
- Universal Compatibility: Integrates flawlessly with standard kart and parts ecosystems, including Briggs, Honda, and clone racing engines.
- Corrosion-Resistant Finish: Defends against the corrosive effects of harsh racing fuels, methanol blends, and environmental moisture.
- Optimized Flow Dynamics: Maintains steady, unrestricted fuel pressure to eliminate mid-corner hesitations and top-end speed drops.
- Compact Footprint: Installs torque-tight in cramped spaces, ensuring your fuel lines remain organized and out of harm's way.
Frequently Asked Questions
Q: How do I ensure a leak-proof seal when installing this 1/8" NPT fitting?
A: Because 1/8" NPT is a tapered pipe thread, it is recommended to use a small amount of fuel-resistant thread sealant or PTFE tape specifically rated for fuel systems. Tighten the fitting until it is snug and the orientation is correct; avoid over-tightening, which can crack the carburetor or fuel pump housing.
Q: Will this fitting work with all types of kart fuel lines?
A: This fitting is designed for 1/4" ID (inner diameter) fuel hose. Ensure your fuel line is rated for the type of fuel you are using (e.g., gasoline or methanol) to prevent the hose from swelling or degrading over time.
Q: Can I use this fitting on both my fuel pump and carburetor?
A: Yes, as long as the component has a 1/8" NPT female port. The 90-degree angle is ideal for these locations to prevent the fuel line from kinking against the engine shroud or chassis frame.
Q: How do I remove a fuel line from the barbed end without damaging it?
A: If the fuel line is stuck, do not pull it forcefully, as this can damage the barb or the line. Instead, use a small pick or flat-head screwdriver to gently pry the edge of the hose away from the barb, or carefully slit the end of the hose with a razor blade to slide it off easily.