Upgrade your heavy-duty tire maintenance setup with the Haltec 753S-4, a premium 4-inch large-bore tire valve extension engineered for maximum accessibility and reliability. Designed specifically for commercial, agricultural, and OTR (Off-The-Road) equipment, this hand-bendable extension allows you to safely route and position your air valves around complex rim configurations without specialized bending tools.

Key Features & Engineering

• Hand-Bendable Rigid Tubing: Easily shapes by hand to clear tight wheel wells or spokes, maintaining its structural shape once positioned.
• Leak-Proof Sealing Technology: Features a high-grade Teflon gasket for a flawless end-seal, paired with a thread-locking lead seal inside the 3/4" hex sealing nut that crushes into the threads for an airtight, vibration-resistant lock.
• Complete Mounting Hardware: Includes two heavy-duty lock nuts and one 3/4" hex sealing nut for immediate, secure installation.
• Universal Large-Bore Fit: Seamlessly couples with standard large-bore valve stems to accommodate high-volume air flow equipment.

• Brand: Haltec Corporation
• Part Number: 753S-4 (Alternate IDs: 753S4, G0845868)
• Effective Length: 4 inches (approx. 89.6 mm)
• Bore Size: Large Bore
• Sealing Nut Hex Size: 3/4"

• Rim Anchoring Required: Warning: This rigid extension must be mechanically anchored to the rim or wheel assembly using a compatible support bracket to prevent vibrational fatigue, component damage, or catastrophic pressure loss during vehicle operation.
• Cap & Core Transfer: This unit acts as a pass-through extension and does not include internal valve cores or outer dust caps. The original valve core and cap must be removed from the wheel stem and reinstalled into the end of this extension to seal the system.

• Specifications