Universal 1/4” Fuel Petcock

• 🧰 Easy installation : screws directly in 1/4” onto most custom tanks

• 🔒 Reliable sealing : crisp ON/OFF control to prevent leaks and seepage

• ⚙️ Universal compatibility : ideal for cafe racer, bobber and scrambler projects

• 💨 Consistent flow : stable supply to carburetors

• 🪙 Aluminum construction : robust, lightweight and corrosion resistant

Universal 1/4” fuel petcock for vintage motorcycles

Precise fuel control, simplified installation and long-lasting reliability for your builds

Designed for fans of classic mechanics and custom builds, this universal 1/4” fuel petcock is the simple, effective solution to set your motorcycle’s fuel supply system straight. Its crisp ON/OFF action prevents leaks when parked, protects your carburetors from flooding and lets you manage fuel flow with confidence.

Thanks to its 1/4” thread, this tap installs easily on many vintage and custom tanks. Its aluminum body combines lightness and strength, while the compact design leaves room for hose routing and integration in tight frame loops. Whether you’re restoring an old bike or assembling a minimalist cafe racer, you get a reliable, durable and ready-to-use part.

Ideal for replacing a tired or leaking tap, it ensures a consistent flow suited to carbureted engines, and shrugs off the demands of daily use as well as more spirited rides. Discreet and practical, it blends naturally into the look of a retro build without spoiling it.

Compatibility:

• Universal Tanks with 1/4” thread (NPT/BSPT depending on setup)

• Honda older CB/CM/CG (carbureted, depending on version)

• Yamaha SR/XS and custom builds (depending on thread)

• Suzuki GN/GZ and carbureted derivatives

• Kawasaki retro KZ/KE (check 1/4” thread)

• Royal Enfield Bullet carb (compatibility to be confirmed)

• Triumph Classics with 1/4” thread (depending on year/version)

• Moto Guzzi Classic models equipped with 1/4”

• Custom Cafe racer/bobber/scrambler projects with 1/4”

Technical specifications:

• 🛠 Type: ON/OFF lever fuel petcock

• 🔩 Inlet thread: 1/4” (NPT/BSPT depending on application)

• 📏 Dimensions: compact body approx. 45 × 30 × 20 mm, total height approx. 55 mm

• 💪 Material: aluminum (body) with quality NBR-type seals

• 🎯 Orientation: 90° outlet for clean hose routing

• 💨 Flow: high and steady for carbureted systems

• 🧪 Resistance: compatible with unleaded fuels, E5/E10

• ⚖️ Weight: approx. 0.2 kg

• 🔧 Installation: direct screw-in + hose clamp recommended

Advantages over stock:

✔ Improved sealing and precise ON/OFF control
✔ Lightweight, corrosion-resistant aluminum construction
✔ Universal 1/4” format for easy fitment on many tanks
✔ Stable flow for smooth carburetor supply
✔ Ideal for demanding restorations and retro builds

Why upgrade the stock part?

Over time, old fuel taps often stiffen, leak or let contaminants through. Modern fuels (E5/E10) test aging seals, and an imprecise lever can cause carb flooding or hard starts. On a careful build, unreliable fuel delivery spoils performance and reliability.

• Leaks and seepage at the shaft or threads

• Stiff, worn or imprecise lever

• Irregular flow causing flat spots under acceleration

• Internal corrosion and deposits

• Hard-to-find parts and repair kits

This 1/4” fuel petcock solves these issues thanks to crisp control, seals suited to today’s fuels and a robust design. You gain in reliability, cleaner installation and peace of mind.

Ideal uses:

• Restoration of vintage motorcycles requiring a reliable petcock

• Cafe racer, bobber and scrambler projects with a 1/4” threaded tank

• Preventive replacement of a leaking or seized petcock

• Workshops and builders seeking a simple, durable solution

• Daily use as well as spirited rides on carbureted engines