In stockSuburban | Furnace Core | 2613A | RP-30N | Fits Suburban NT-30SP/ NT-34SP Furnaces — NT30SP
suburban-nt30sp-furnace-coreThe Suburban NT-30SP furnace core (2613A, RP-30N) is the genuine replacement core for listed Suburban NT-30SP furnaces. It swaps into the existing housing per the service manual.
- Genuine Suburban NT-30SP core, #2613A RP-30N
- OEM chamber built for NT-30SP housings
- Service-manual swap, no housing change
- Fast tracked shipping, 30-day returns
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 NT30SP. Verified fitment on standard factory configurations.
Product & Logistics Specifications
Technical Overview
Overview & Function
The Suburban NT-30SP furnace core, part 2613A for RP-30N housings, is the replacement heat chamber for listed Suburban RV furnaces. The core is where combustion happens and heat transfers to the circulating coach air, so a cracked or sooted chamber means weak heat, odors, or lockouts. Installing the genuine 2613A core into the existing NT-30SP housing restores factory heat output without replacing the entire furnace.
Fitment & Compatibility
This core fits Suburban NT-30SP furnaces using the RP-30N chamber, identified by part 2613A on the furnace data plate or parts list. Verify the NT-30SP model and RP-30N designation before ordering, since Suburban chambers are not interchangeable across furnace families. The core drops into the original housing using the factory mounting points and mates with the existing blower, gas valve, and exhaust for that model.
Technical Construction & Specifications
The chamber is formed to Suburban NT-30SP dimensions from heat-rated steel with factory welds and ports positioned for the model's burner, igniter, and sail-switch layout. It carries the same mounting flanges and gasket surfaces as the original so the housing seals correctly after the swap. Heat-exchanger passages follow the RP-30N pattern to preserve the designed temperature rise across the specified airflow range.
Installation & Maintenance Guidelines
Gas furnace service must be performed or verified by a certified RV technician. Shut off LP supply and 12V power, remove the furnace per the manual, and open the housing on a clean bench. Transfer undamaged serviceable hardware, fit the new 2613A core with fresh gaskets, and torque fasteners to specification. Reinstall, then perform leak testing, combustion verification, and sail-switch and limit-switch checks before returning the coach to service.
