Power Tank Tire Inflator Rebuild Kit

The Power Tank Tire Inflator Rebuild Kit restores smooth, leak-free operation to Power Tank thumb-trigger tire inflators whose pistons have become stiff, sticky, or prone to leaking. The kit includes all replacement piston o-rings and a packet of silicone grease. Both parts are needed to complete the rebuild without sourcing components separately.

Fix the Feel Before It Fails in the Field

A thumb trigger that drags or leaks mid-airing wastes CO2 and slows a tire fill at exactly the wrong moment. Rebuilding the inflator piston with fresh o-rings and clean silicone grease restores the crisp, consistent action the trigger had when new. The repair requires no special tools: remove the piston, swap the o-rings, wipe away old grease, re-lube, and reinstall.

Silicone Grease Included, No Substitutes Needed

O-ring longevity depends on the right lubricant. Petroleum-based greases degrade rubber o-rings over time; the silicone grease in this kit is compatible with the piston seals and keeps them pliable under the pressure cycling a CO2 inflator sees in regular use. A small dab applied under the trigger where the piston contacts the body completes the service.

Features

• Replacement piston o-rings: full set of new o-rings sized for Power Tank thumb-trigger inflator pistons
• Silicone grease: included lubricant compatible with inflator piston seals
• Simple service procedure: piston removal, o-ring swap, re-lube, and reinstall, with no special tools required

Specifications

Who This Is For and Isn't

This rebuild kit suits any Power Tank thumb-trigger tire inflator owner whose trigger action has become stiff, sticky, or is leaking. The rebuild is a straightforward maintenance task that extends the life of the inflator without replacing the whole unit.

This kit is not a replacement inflator and does not include a piston body or trigger assembly. It is sized for Power Tank thumb-trigger inflators and is not confirmed to fit other brands or inflator styles.

Common Questions

How do I know when my inflator needs a rebuild?

A Power Tank thumb-trigger inflator that has become noticeably stiff or sticky to operate, or that leaks air when the trigger is released, is a good candidate for a rebuild. Replacing the piston o-rings and refreshing the silicone grease typically restores normal trigger action and sealing.

What tools are needed to complete the rebuild?

The Power Tank Tire Inflator Rebuild Kit is designed for a tool-free service: remove the piston, replace the o-rings, wipe away old grease, apply the included silicone grease, and reinstall the piston. No specialty tools are required.

Is the silicone grease safe to use on rubber o-rings?

Yes. The silicone grease included in the Power Tank Tire Inflator Rebuild Kit is compatible with the rubber piston seals in Power Tank thumb-trigger inflators. Silicone-based lubricants are the correct choice for rubber o-rings under pressure cycling, unlike petroleum-based greases that can cause seal degradation over time.