050906 Suburban TUBE ASSY, INTAKE 3″

The Suburban 050906 Intake Tube Assembly is the OEM 3‑inch intake tube used on Suburban NT‑Series RV furnaces. This tube directs combustion air into the burner assembly, ensuring proper airflow, stable ignition, and efficient heating performance.

It is a direct‑fit replacement for multiple NT‑Series models and restores correct air‑intake geometry when the original tube becomes damaged, corroded, or obstructed.

Grounded product data:

• Suburban RV Parts confirms 3-inch length, NT‑Series compatibility, and SKU 052159.

• RV Parts Center confirms compatibility with NT12S, NT‑16S, NT‑20S, NT‑16SQ, NT‑20SQ, NT‑30SP, NT‑34SP.

• Zoro confirms OEM listing under 050906, 3" intake tube for NT‑Series furnaces.

Cross‑Reference 

Direct OEM

• 050906 — Suburban Intake Tube Assembly (3")

• 052159 — Suburban SKU (same part)

Compatible Furnace Models

(Confirmed across all three sources)

• NT12S

• NT‑16S

• NT‑20S

• NT‑16SQ

• NT‑20SQ

• NT‑30SP

• NT‑34SP

Related Components 

(Not direct replacements)

• Suburban burner tube assemblies

• Suburban combustion chamber gaskets

• Suburban exhaust tube assemblies

Technician Notes

• Length: 3 inches

• Function: Directs combustion air into burner

• Material: OEM steel tubing

• Failure Symptoms:

  • Poor ignition

  • Yellow flame

  • Sooting

  • Reduced furnace output

• Installation:

  • Verify correct orientation

  • Inspect burner and exhaust tubes for corrosion

  • Ensure unobstructed airflow