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40V74 - Weldcraft 40V74 Replacement Water Hose for WP-18 TIG Torch, 12.5ft Vinyl

Packaging: 1 of each
$16.70/ea $11.44/1 of each only $11.44/eaSave 31%

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OVERVIEW

Keep Your Cool with the Weldcraft 40V74

If you are running a water-cooled WP-18 TIG torch, you know that heat is the enemy of your equipment. The Weldcraft 40V74 Water Hose is your first line of defense against torch meltdown. This 12.5-foot vinyl hose is the lifeline that delivers coolant straight to your torch head, letting you weld at high amps without your equipment getting too hot to handle. Whether your old hose has developed a pinhole leak, gotten kinked beyond repair, or just seen better days, this replacement is exactly what you need to get back under the hood.

Why choose vinyl? It's lightweight and flexible. When you're in a tricky position trying to walk the cup on a pipe or reaching into a tight corner, the last thing you want is a stiff, heavy hose fighting your wrist. The 40V74 moves with you, offering a smooth range of motion that helps you keep your hand steady and your beads consistent. It's tough enough to handle shop life but light enough to keep you comfortable during those long shifts.

Installation is straightforward—just unthread the old line and screw this one in. It fits all standard 18-series torches, so whether you're rocking a Miller, a CK, or a Lincoln setup, this hose will likely fit right up. Don't risk frying your expensive torch head or blowing out a collet body because of a bad cooling line. Swap in a fresh 40V74 and keep your coolant flowing and your arcs glowing. It's a small investment that protects your biggest assets: your torch and your weld quality.

Remember, a water-cooled system is only as good as its weakest link. If you see coolant dripping or notice your torch getting hotter than usual, check your lines. If it's time for a swap, the Weldcraft 40V74 is the reliable, industry-standard choice for 12.5-foot assemblies.

Additional Information
Brand:Weldcraft
Length:12.5 ft
Item:Water Hose
Style Amps Cooling:18 / 350 Amps / Water Cooled
Packaging Description:1-per-each
Material:Vinyl
Torch Compatibility:WP-18, CK18, 3 Series
Cooling Method:Water Cooled
Part Type:Replacement Hose

INCLUDED

  • 1 x 40V74 Vinyl Water Hose (12.5 ft)

APPLICATIONS

  • Water-cooled TIG welding operations
  • Replacement of worn or leaking WP-18 water hoses
  • Industrial fabrication shops using 350A+ TIG systems
  • Maintenance and repair of 3 Series TIG torches
  • Automotive and aerospace precision welding setups

FAQ

The 40V74 is compatible with WP-18, CK18, and most other standard 18-series (3 Series) water-cooled TIG torches.

This hose is 12.5 feet (3.8 meters) long, which is the standard length for most bench-top TIG torch packages.

The 40V74 is made of vinyl. If you require a rubber hose, you would typically look for part number 40V74R.

This specific hose (40V74) typically carries water (coolant) only. The power is usually carried by a separate power cable (often part number 40V64 for 12.5' WP-18 torches), though configurations can vary.

Look for visible cracks, kinks that restrict flow, or any signs of coolant leakage. If your torch head is overheating despite the cooler running, the hose might be blocked.

No, this hose is 12.5 feet long. For a 25-foot WP-18 torch, you would need the 40V74-25 or equivalent part number.

Yes, it comes with the standard crimped fittings on both ends to connect to the torch body and the water cooler/adapter.

This product listing refers to the Weldcraft (Miller) branded part, which is OEM for Miller TIG systems, but it is also compatible with other brands using the standard numbering system.