Suburban Furnace Core | 2608A | RP-30FQ | 25K BTU | SF-Series

Rebuild your Suburban SF-Series furnace with the Suburban Furnace Core (Part #2608A / RP-30FQ). Genuine Suburban OEM furnace core — the complete internal working assembly that slides into your existing furnace cabinet. 25,000 BTU output. Compatible with SF-25F, SF-25FQ, SF-30F, SF-30FQ, and SF-FQ (2555A/2558A) series furnaces. 1-year warranty with The RV Surplus.

What This Does

The furnace core is the complete internal working assembly of your Suburban furnace. Rather than removing and repairing individual furnace parts, this core module effortlessly slides into your existing cabinet for a quick, cost-effective, and time-saving restoration.

⭐ Cost-Effective Alternative to Full Furnace Replacement

• Convenient replacement — hassle-free restoration process
• Cost-effective solution — save money vs a new full furnace
• Time-saving installation — straightforward install
• New furnace benefits — improved performance and efficiency without replacing the cabinet

Compatible Suburban SF-Series Furnaces

Direct replacement core for:

• SF-25F
• SF-25FQ
• SF-30F
• SF-30FQ
• SF-FQ (2555A)
• SF-FQ (2558A)

Verify your existing furnace is one of these SF-Series variants before ordering.

Need a Higher BTU Core?

For SF-35F/35FQ/42F/42FQ furnaces (35K BTU), see the Suburban 35K BTU Furnace Core 2610A / RP-35FQ.

Related Suburban Furnace Cores — NT-Series

If your furnace is a Suburban NT-Series (not SF-Series), different cores are available:

• Suburban 30K BTU Furnace Core 2613A / RP-30N — for NT-30SP 12V (also fits NT-24SP/NT-34SP with BTU change)
• Suburban 40K BTU Furnace Core 2614A / RP-40N — for NT-40SP 12V series
• Suburban 40K BTU Furnace Core 2615A / RP-40P — for NT-40P 120V Park Model

Related Suburban SF-Series Components

If you're servicing an SF-Series furnace installation, related parts:

• Suburban Bottom Duct Kit w/ Gasket (520576) — fits most SF furnaces
• Suburban SF/SFQ Front Blower Housing (391039) — fits SF-20Q through SF-42Q
• Suburban SF-Series Gas Valve (525044 / 161305) — for SF-Series post-1997

Performance Specifications

• BTU: 25,000

Dimensions

• Width: 17"
• Depth: 20"
• Height: 7.5"

Cross-Reference Part Numbers

• SKU: 2608A
• Alt SKU: RP-30FQ (also referenced as RP-30F)

⚠️ Professional Installation Required

Furnace core installation involves LP gas connections, 12V DC electrical wiring, and proper cabinet alignment. Suburban gas appliances are to be installed and/or serviced by a qualified service technician. Improper installation can result in gas leaks, fire, or explosion hazards. Always test all gas connections with leak detection solution before returning the furnace to service.

1-Year Warranty with The RV Surplus

Genuine Suburban OEM

Key Features

• Genuine Suburban OEM RV furnace core
• SKU: 2608A (Alt: RP-30FQ, RP-30F)
• 25,000 BTU
• Fits Suburban SF-Series furnaces: SF-25F, SF-25FQ, SF-30F, SF-30FQ, SF-FQ (2555A), SF-FQ (2558A)
• Related NT-Series cores available: 2613A (30K NT-30SP), 2614A (40K NT-40SP), 2615A (40K NT-40P 120V)
• Cost-effective alternative to full furnace replacement
• Slides into existing cabinet — no cabinet replacement needed
• Dimensions: 17"W × 20"D × 7.5"H
• Backed by 1-year warranty with The RV Surplus

Specifications

• Brand: Suburban
• SKU: 2608A
• Alt SKU: RP-30FQ (also RP-30F)
• Type: RV Furnace Core (Heat Exchanger + Burner + Blower Assembly)
• BTU: 25,000
• Compatible Furnace Models: Suburban SF-25F, SF-25FQ, SF-30F, SF-30FQ, SF-FQ (2555A), SF-FQ (2558A)
• Related NT-Series Cores: 2613A / RP-30N (NT-30SP), 2614A / RP-40N (NT-40SP), 2615A / RP-40P (NT-40P 120V)
• Width: 17"
• Depth: 20"
• Height: 7.5"
• Warranty: 1-year with The RV Surplus