Two-Way 1/4" Fuel Shut Off Valve for Exmark Hustler 1-633347 745059 Scag 482212 with Fuel Line

What It Is

This is a two-way, 1/4-inch fuel shut-off valve designed to replace the OEM part on commercial zero-turn mowers from Exmark, Hustler, and Scag. It lets you stop fuel flow to the carburetor for safe storage, transport, or service without draining the tank.

Fitment & Compatibility

Before buying, confirm these three things:

• OEM cross-reference: Replaces Exmark 1-633347, Hustler 745059, and Scag 482212. If your mower uses any of those numbers, this valve fits.
• Hose size: The valve has 1/4-inch barbed fittings. Your fuel line must be 1/4-inch ID (inner diameter). Measure your existing hose with a caliper or ruler—common on most commercial zero-turns with 1/4" fuel line.
• Mounting: This is a push-on barbed valve (no threads). It installs inline by cutting your fuel hose and pushing the valve ends into the line. No adapter needed for 1/4" hose.

Not compatible with mowers using 5/16" or 3/8" fuel line without a step-down adapter.

Key Things to Know

• Quality is solid for the price – Users report it stops flow reliably and holds up to fuel exposure. No reported leaks or cracking in moderate use.
• Install is easy – No tools required. Cut the fuel line, push the valve ends in, and secure with hose clamps (not included). Takes under 5 minutes.
• Common gotcha: The valve lever is plastic and can break if overtightened or forced when cold. Operate gently. Avoid using pliers on the lever.
• It’s a direct replacement – Not an upgrade. If your original valve leaks or sticks, this fixes the issue. If you need a metal valve for heavy-duty use, look elsewhere.

Should You Buy It

If you need a cheap, functional replacement for a broken or leaking fuel shut-off on an Exmark, Hustler, or Scag zero-turn with 1/4-inch fuel line, this valve works. It’s not built for abuse, but for normal operation it’s a solid value at under $17. Skip it if you want metal construction or need a valve for larger hose sizes.