Haltec QS-500 2 inch Quikstem Brass Push-Through Valve Stem for OTR & Farm Wheels — .625 inch Hole, 200 psi

Haltec QS-500 Quikstem is a 2-inch brass push-through valve stem engineered for fast, on-the-spot replacement of worn or damaged stems on OTR and agricultural wheels with .625" valve holes.

When a valve stem fails in the field, downtime and slow repairs cost time and money. The Haltec QS-500 Quikstem offers a durable, ready-to-install solution sized for heavy-duty off-the-road (OTR) and farm wheels that use a .625 inch valve stem opening. Built from brass and rated up to 200 psi, this stem is a practical emergency repair part you can carry in a service truck or toolbox.

How does the QS-500 Quikstem simplify emergency valve stem replacement?

Designed as a push-through valve stem, the QS-500 installs quickly without specialized tools, letting technicians restore air pressure and resume work fast. Its two-inch length clears wheel and rim profiles typical of OTR and agricultural applications. The brass construction resists corrosion and holds up under repeated use in rugged conditions.

• Push-through design for tool-minimal installation
• 2-inch length suited to heavy equipment rims
• Brass construction for corrosion resistance
• Rated for service pressures up to 200 psi

Will this stem fit my wheel and tire combination?

The QS-500 is made specifically for wheels with a .625 inch (5/8") valve stem hole, a common size for OTR and farm tires. Confirm your wheel’s valve hole diameter before purchase to ensure correct fit. If your rim uses a different hole size or a stem with different length requirements, choose a stem matched to those specifications.

• Specifically for .625" (5/8") valve stem holes
• Common compatibility with OTR and agricultural wheels
• Two-inch stem length for deep or recessed valve seats
• Check rim hole diameter prior to installation

How durable and safe is the Haltec QS-500 under heavy use?

Constructed from brass and manufactured in the USA, the QS-500 balances strength and corrosion resistance to withstand demanding worksite conditions. The stem is pressure-rated to 200 psi, suitable for many heavy equipment tire applications, but always follow tire and wheel manufacturer pressure recommendations. Regular inspection after installation helps ensure continued safe operation.

• Brass material for long-term durability
• Manufactured in the USA for consistent quality
• 200 psi maximum rated pressure
• Recommended periodic inspection after installation

What should I carry and expect for a field repair with the QS-500?

Keep a few QS-500 stems, a valve puller or basic hand tools, and a portable inflator in your service kit to make a fast roadside repair. The Quikstem installs quickly so you can replace a failing stem, reseat the tire if needed, and inflate to the correct pressure with minimal equipment. For repeated extreme conditions, stock spare stems and check seals and core components during service calls.

• Pack spare Haltec QS-500 stems for job-site readiness
• Simple tools and a valve puller speed installation
• Portable inflator or compressor required to refill tire
• Carry replacements for cores, caps, and small fittings

Who is this for? The Haltec QS-500 Quikstem is ideal for fleet mechanics, farm operators, tire service technicians, and equipment owners who need a dependable emergency valve stem replacement for OTR and agricultural wheels with a .625" valve hole. It’s a practical, USA-made spare part for anyone maintaining heavy equipment tires and aiming to minimize downtime with quick, reliable repairs.