Power Tank Monster Valve Replacement Cap and Lanyard

The Power Tank Monster Valve Replacement Cap and Lanyard is a direct replacement cap for Monster Valve high-flow valve stems, machined from black anodized aluminum and paired with a lanyard that tethers the cap to the stem so it stays with the valve when removed.

Built to Stay With the Valve

Monster Valve caps take regular abuse at the trail: removed before airing down, set on a dusty bumper, and occasionally lost for good. The black anodized aluminum cap resists corrosion and handles the same environment as the stem itself. The anodized finish is a step up from the brass caps used in earlier Monster Valve generations, offering better durability in wet and muddy conditions.

Lanyard Keeps the Cap Accountable

A machined detent on the cap accepts the included lanyard. The opposite end of the lanyard loops around the Monster Valve stem, so the cap is tethered to the valve rather than loose in a pocket or left on the ground. For anyone who airs down frequently, the lanyard removes one more thing to track at the trailhead.

Features

• Black anodized aluminum construction: corrosion-resistant upgrade from prior brass caps
• Machined detent: accepts the included lanyard for cap retention
• Lanyard included: one end attaches to the cap detent, the other loops around the Monster Valve stem

Specifications

Who This Is For and Isn't

This cap and lanyard is for Monster Valve owners who have lost or damaged their original cap, or who want a tethered cap to prevent future loss during regular airing-down routines.

This is a replacement cap and lanyard only. It does not include a Monster Valve stem or any other valve hardware. It is not a universal valve cap and is intended for use with Monster Valve high-flow valve stems.

Common Questions

What is included with this product?

The Power Tank Monster Valve Replacement Cap and Lanyard includes one black anodized aluminum cap with a machined detent and one lanyard. The Monster Valve stem itself is sold separately and is not included.

What Monster Valve stems does this cap fit?

This replacement cap is designed for Power Tank Monster Valve high-flow valve stems. Contact TerrainVault before ordering if you are unsure whether your stem is compatible.

Why aluminum instead of brass?

Power Tank updated the Monster Valve cap from brass to black anodized aluminum. Anodized aluminum resists corrosion in wet and muddy conditions and is lighter than brass, making it a practical upgrade for off-road use.

How does the lanyard attach?

The Monster Valve replacement cap has a machined detent that accepts one end of the lanyard. The other end of the lanyard loops around the Monster Valve stem, keeping the cap tethered to the valve when it is removed for airing down.