In stockSuburban | Replacement Furnace Core | 2612A | RP-16NEQ | 16,000 BTU | Fits NT-16SEQ / NT-20SEQ — NT16SEQ
suburban-nt16seq-furnace-coreThe Suburban NT-16SEQ core (2612A, RP-16NEQ, 16,000 BTU) renews listed NT-16SEQ furnaces. It fits the original housing following factory service steps.
- Genuine Suburban NT-16SEQ core #2612A
- 16,000 BTU RP-16NEQ chamber spec
- Fits original NT-16SEQ housings
- Quick dispatch with warranty support
Orders before 2:00 PM EST ship same business day.
Guaranteed compatibility or 30-day hassle-free return.
Free standard shipping on orders over $300.
✓ Verified Fitment & OEM Compatibility
Exact OEM replacement for part number NT16SEQ. Verified fitment on standard factory configurations.
Product & Logistics Specifications
Technical Overview
Overview & Function
The Suburban NT-16SEQ furnace core, part 2612A for RP-16NEQ housings, renews compact Suburban furnaces rated at 16,000 BTU. Small furnaces work hard in shoulder seasons, and a degraded chamber shows up as short cycling, soot staining, or declining heat at the vents. The genuine 2612A chamber replaces the worn heat section inside the original housing and brings output back to the rated 16,000 BTU.
Fitment & Compatibility
Match NT-16SEQ, RP-16NEQ, and 2612A against the furnace data plate. All three aligning confirms a direct fit. The core is dimensioned for the NT-16SEQ housing only and aligns with that model's burner, electrode, and blower positions. If your plate shows a different Suburban series, order the core number for that series instead.
Technical Construction & Specifications
The RP-16NEQ chamber uses heat-rated formed steel with factory-positioned burner and exhaust ports for the 16,000 BTU firing rate. Mounting flanges and gasket lands match the original housing so the seal restores correctly. Internal passages preserve the designed heat-exchange path, maintaining temperature rise and efficiency within the model's airflow specification when paired with a clean blower wheel and correct ducting.
Installation & Maintenance Guidelines
Have a certified RV technician perform the swap. Isolate LP and 12V power, extract the furnace, and document wire and gas routing with photos. Install the 2612A core with new gaskets, reassemble to torque specification, and reinstall the furnace. Complete the job with gas leak testing, ignition and flame-sense verification, and a full heat-cycle check at the vents before sign-off.



