OEM replacement 3" combustion air intake tube for Suburban NT-40, NT-42T, P-40, and P-40B furnace models.
The Suburban Mfg 052041 is an OEM replacement furnace intake tube assembly, designed for the Suburban NT-40, NT-42T, P-40, and P-40B furnace models. This 3" tube brings combustion air into the furnace, and replacing a damaged or corroded tube helps restore proper airflow for safe, efficient burner operation. This part also supersedes the older part number 050933.
This intake tube is designed for Suburban's NT-40/NT-42T/P-40/P-40B furnace models, not a water heater. Suburban's furnace lineup uses several different intake tube lengths across other models (for example, a 5" tube for the NT-16S/NT-20S, part #052161), so confirm the exact furnace model and required tube length before ordering.
• (1) Suburban Mfg 052041 furnace intake tube assembly