Lochinvar & A.O. Smith 100163263 Tubing Kit

The Lochinvar & A.O. Smith 100163263 Tubing Kit is a critical field-service assembly engineered for high-efficiency commercial water heaters and hydronic boilers. This OEM replacement part, which is the direct functional equivalent of the MSC3702 tubing kit, provides the necessary conduits for maintaining precise fluid circulation and pressure regulation within the combustion or heat exchange circuit. Constructed from high-grade, durable materials, the 100163263 is designed to withstand the thermal cycling and chemical demands of modern HVAC systems, preventing the micro-cracking and standard wear often seen in aftermarket alternatives. For technicians performing system maintenance or boiler repairs, this kit ensures a secure, leak-proof fit to help restore system efficiency and operational safety. By replacing worn burner tubing or sensing lines with this verified kit, you maintain the tight tolerances required for optimal fuel-to-air ratios and temperature control in Lochinvar boiler and A.O. Smith water heater units.

• Universal Compatibility: Serves as the official 100163263 part number, fully replacing the legacy MSC3702 assembly.
• Enhanced Durability: Heavy-walled tubing resists corrosion and fatigue caused by high-temperature HVACR environments.
• Precision Fit: Engineered to match factory specifications for gas flow and water heater sensor accuracy.
• Reliable Performance: Critical for preventing pressure drops and ensuring consistent heating outcomes.

Is the 100163263 compatible with older MSC3702 installations?
Yes, the 100163263 is the current identical replacement part for the MSC3702 and is designed for seamless integration into existing systems.

Can this kit be used for both gas and water lines?
Depending on the specific boiler model, this tubing kit is utilized for circulating fluids or gas flow to maintain controlled temperatures and pressures.

What are the common signs that this tubing kit needs replacement?
Technicians should look for visible leaks, hardening of the tube material, or pressure fluctuations that indicate a breach in the integrity of the original HVAC part.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.