Looking for the best Suburban furnace components to keep your RV warm and efficient? We’ve got you covered with a list of 10 top-rated, easy-to-install parts designed for performance and durability.
Keeping your RV furnace in top shape is easy with the right components. From ignition boards to limit switches, these parts ensure your furnace runs safely and efficiently.
These top-rated Suburban furnace components are built to last, easy to install, and designed for performance. They’ll keep your RV warm and cozy, no matter where your adventures take you.
List of Top 10 Suburban Furnace Components
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Lrichy OEM 520820 RV Furnace Ignition Circuit Board for Suburban SA/SF/SFV/SH/NT Furnaces, 12VDC Control Module for SF 20/25/30/35/42, NT 12/16/20/24/30/34, 521099 520741 520871 |
This Lrichy OEM 520820 RV Furnace Ignition Circuit Board is perfect for RV owners who need a reliable and easy-to-install replacement for their Suburban furnace. It’s ideal for those seeking consistent heating and peace of mind with its safety features and 2-year warranty. |
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Suburban RP-35Q 35,000 BTU/h RV Replacement Core for Suburban Furnace Series SF-35, SF-35Q, SF-42, SF-42Q, and SF-Q (2609A) |
This Suburban RP-35Q furnace core is perfect for RV owners who want a simple, affordable fix for their old furnace. It’s easy to install and saves time and money, making it ideal for anyone looking to upgrade without hassle. |
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232504 Furnace Limit Switch for Suburban RV Furnaces SF-25/30/35 SF-25F/30F |
This 232504 Furnace Limit Switch is perfect for RV owners who want to keep their Suburban RV Furnaces running safely and smoothly. It’s ideal for those with models SF-25/30/35 or SF-25F/30F/35F. |
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Suburban RP-35FQ 35,000 BTU/h RV Replacement Core for Suburban Furnace Series F-42F, SF-35F, SF-35FQ, SF-42FQ, SF-FQ (2610A) |
This product is perfect for RV owners who want a simple, affordable fix for their furnace. It’s easy to install and saves time and money. |
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Fit For Suburban RV Furnace Parts 232286,Single Probe Gas Furnace Igniters Electrode with Wire Assembly, Camper Furnace For Suburban 232286 Above 934701426 SF-20, SF-25, SF-30, SF-35 (SF Series) |
This RV furnace igniter is perfect for camper owners who need a reliable replacement part for their Suburban furnace. It’s easy to install and keeps your water heater working smoothly. |
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070853 Bottom Duct Gaskets for Suburban SF Series Adapter Furnace Parts (Except 42) |
This product is perfect for RV, camper, or trailer owners who need to replace or upgrade their furnace parts. It’s easy to install and keeps your heating system running efficiently. |
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EOQIFJM 520820 RV Furnace Control Ignition Circuit Board Fits for Suburban SF-20 SF-25 SF-30 SF-35 SF-42 SFV-35Q SF-35FQ SF-42F SF-42Q SF20F SF-25F SF-30F SF-35F NT Series NT-20SQ NT-30SP NT-34SP |
This RV furnace control ignition circuit board is perfect for RV owners who need a reliable replacement for their Suburban furnace models. It’s easy to install and works seamlessly with SF and NT Series furnaces. |
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SUBURBAN MFG 6258AEB Furnace Access Door for SF20Q – Black |
This SUBURBAN MFG 6258AEB Furnace Access Door is perfect for homeowners who need a reliable replacement part for their SF20Q furnace. It’s easy to install and fits seamlessly into your system. |
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4-Pack 232504 RV Furnace Limit Switch Replacement for Suburban SF-25, SF-30, SF-35 & F Series, Compatible with Suburban 232504, 233532, 525006, High Limit Safety Cutoff Kit |
This 4-pack of RV furnace limit switches is perfect for RV owners who want to keep their heating system safe and reliable. It’s ideal for DIY repairs, saving you time and money. |
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Suburban 520322 Power Supply Connector |
The Suburban 520322 Power Supply Connector is perfect for RV owners who need a reliable auto accessory. It’s easy to install and fits RV furnaces seamlessly. |
Detailed Reviews
Discover the top 10 Suburban Furnace Components handpicked for performance and value. Each part is expert-reviewed and customer-approved, ensuring reliable and efficient heating for your RV. Find the perfect fit to keep your furnace running smoothly and safely.
1. Lrichy OEM 520820 RV Furnace Ignition Circuit Board for Suburban SA/SF/SFV/SH/NT Furnaces, 12VDC Control Module for SF 20/25/30/35/42, NT 12/16/20/24/30/34, 521099 520741 520871

This OEM control board keeps your RV furnace running smooth. It gives fast starts. It keeps heat steady.
It fits many Suburban furnace models. It installs with ease.
This board uses smart thermal control. It helps stop ignition issues. It delivers safe, steady heat.
| Pros | Cons |
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Perfect For:
This Lrichy OEM 520820 RV Furnace Ignition Circuit Board is perfect for RV owners who need a reliable and easy-to-install replacement for their Suburban furnace. It’s ideal for those seeking consistent heating and peace of mind with its safety features and 2-year warranty.
Ready to Purchase?
2. Suburban RP-35Q 35,000 BTU/h RV Replacement Core for Suburban Furnace Series SF-35, SF-35Q, SF-42, SF-42Q, and SF-Q (2609A)

The Suburban RP-35Q is a cost-effective way to upgrade your RV furnace. It’s a direct replacement for Suburban SF-35, SF-35Q, SF-42, SF-42Q, and SF-Q models. Save time and money with this simple solution.
It’s compact, efficient, and fits snugly in your RV. Measures 20 x 17 x 7.5 inches. Easy to install and warranty-backed for peace of mind.
Enjoy a two-year limited warranty with this affordable option. No need for a full furnace replacement. Quick installation gets your RV heating up fast.
| Pros | Cons |
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Perfect For:
This Suburban RP-35Q furnace core is perfect for RV owners who want a simple, affordable fix for their old furnace. It’s easy to install and saves time and money, making it ideal for anyone looking to upgrade without hassle.
Ready to Purchase?
3. 232504 Furnace Limit Switch for Suburban RV Furnaces SF-25/30/35 SF-25F/30F

The 232504 Furnace Limit Switch keeps your RV furnace running safely. It prevents overheating and protects your system.
Made from strong metal, it’s built to last. Works with Suburban SF-25/30/35 and SF-25F/30F/35F models. Easy to install and reliable.
| Pros | Cons |
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Perfect For:
This 232504 Furnace Limit Switch is perfect for RV owners who want to keep their Suburban RV Furnaces running safely and smoothly. It’s ideal for those with models SF-25/30/35 or SF-25F/30F/35F.
Ready to Purchase?
4. Suburban RP-35FQ 35,000 BTU/h RV Replacement Core for Suburban Furnace Series F-42F, SF-35F, SF-35FQ, SF-42FQ, SF-FQ (2610A)

The RP‑35FQ offers a cost‑effective replacement for old units. It slides into your furnace cabinet. You save time and money.
Designed for Suburban F‑42F, SF‑35F, SF‑35FQ, SF‑42FQ, and SF‑FQ. The module fits perfectly with no extra parts. Your furnace runs smoothly.
The unit measures 20 × 17 × 7.5 inches. It comes with a two‑year warranty.
| Pros | Cons |
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Perfect For:
This product is perfect for RV owners who want a simple, affordable fix for their furnace. It’s easy to install and saves time and money.
Ready to Purchase?
5. Fit For Suburban RV Furnace Parts 232286,Single Probe Gas Furnace Igniters Electrode with Wire Assembly, Camper Furnace For Suburban 232286 Above 934701426 SF-20, SF-25, SF-30, SF-35 (SF Series)

Keep your RV furnace running smoothly with this essential replacement part. It’s a single probe gas furnace igniter designed for Suburban furnaces, ensuring safe and reliable operation.
Easy to install, compatible with many models, and built to last. Enjoy hot water on the go with this dependable accessory.
| Pros | Cons |
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Perfect For:
This RV furnace igniter is perfect for camper owners who need a reliable replacement part for their Suburban furnace. It’s easy to install and keeps your water heater working smoothly.
Ready to Purchase?
6. 070853 Bottom Duct Gaskets for Suburban SF Series Adapter Furnace Parts (Except 42)

The 070853 Bottom Duct Gaskets are made for Suburban SF Series furnaces. They fit most models, except SF-42. These gaskets ensure a perfect match for your furnace.
These gaskets seal the furnace and ductwork tightly. They prevent air leaks, keeping your heating system efficient.
Proper installation saves energy and money. It also extends the life of your furnace. These gaskets are a smart choice for maintenance.
| Pros | Cons |
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Perfect For:
This product is perfect for RV, camper, or trailer owners who need to replace or upgrade their furnace parts. It’s easy to install and keeps your heating system running efficiently.
Ready to Purchase?
7. EOQIFJM 520820 RV Furnace Control Ignition Circuit Board Fits for Suburban SF-20 SF-25 SF-30 SF-35 SF-42 SFV-35Q SF-35FQ SF-42F SF-42Q SF20F SF-25F SF-30F SF-35F NT Series NT-20SQ NT-30SP NT-34SP

The EOQIFJM 520820 RV Furnace Control Ignition Circuit Board is a direct replacement for Suburban RV furnace models. It fits SF and NT series furnaces, ensuring perfect compatibility.
This circuit board features intelligent ignition control, providing real-time monitoring and temperature regulation. It includes safety protections like overcurrent, short-circuit, overheat, and overvoltage safeguards.
Easy to install, plug-and-play design, no wires included. Direct replacement for existing boards, secure connection.
| Pros | Cons |
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Perfect For:
This RV furnace control ignition circuit board is perfect for RV owners who need a reliable replacement for their Suburban furnace models. It’s easy to install and works seamlessly with SF and NT Series furnaces.
Ready to Purchase?
8. SUBURBAN MFG 6258AEB Furnace Access Door for SF20Q – Black

This access door is strong. It fits the SF20Q furnace well. It keeps your unit safe.
The 6258AEB part is built to last. It has a clean black finish.
The size is easy to handle. The weight is light and simple to move.
| Pros | Cons |
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Perfect For:
This SUBURBAN MFG 6258AEB Furnace Access Door is perfect for homeowners who need a reliable replacement part for their SF20Q furnace. It’s easy to install and fits seamlessly into your system.
Ready to Purchase?
9. 4-Pack 232504 RV Furnace Limit Switch Replacement for Suburban SF-25, SF-30, SF-35 & F Series, Compatible with Suburban 232504, 233532, 525006, High Limit Safety Cutoff Kit

This 4-pack of RV furnace limit switches is a perfect fit for Suburban furnaces. It works with popular models like SF-25, SF-30, and SF-35. These switches are fully tested to meet high standards.
The kit replaces multiple part numbers, saving you time and effort. It’s a versatile solution for old or faulty switches. Keep your RV safe and running smoothly.
This essential safety device prevents furnace overheating. The 4-pack offers great value, ensuring you have spares for quick repairs. It’s easy to install with simple wire connections.
| Pros | Cons |
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Perfect For:
This 4-pack of RV furnace limit switches is perfect for RV owners who want to keep their heating system safe and reliable. It’s ideal for DIY repairs, saving you time and money.
Ready to Purchase?
10. Suburban 520322 Power Supply Connector

The Suburban 520322 Power Supply Connector is a must-have auto accessory. It’s compact and easy to handle. Perfect for RV furnace systems.
This connector comes in a small package, measuring 5.0″ L x 3.0″ W x 0.1″ H. Each package includes one unit.
It’s designed for RV furnaces, ensuring reliable power supply. A simple, effective solution for your needs.
| Pros | Cons |
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Perfect For:
The Suburban 520322 Power Supply Connector is perfect for RV owners who need a reliable auto accessory. It’s easy to install and fits RV furnaces seamlessly.
Ready to Purchase?
Buying Guide
Keeping your RV furnace in top shape is easy with the right components. These parts ensure your furnace runs safely and efficiently.
Factors to Consider When Buying Suburban Furnace Components:
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Compatibility: Make sure the part fits your specific Suburban furnace model. Check the model number and series before buying.
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Quality: Choose high-quality, durable components from trusted brands like Suburban. This ensures long-lasting performance and safety.
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Ease of Installation: Look for parts that are easy to install, with clear instructions or plug-and-play designs. This saves time and effort.
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Safety Features: Prioritize components with built-in safety features, such as overheat protection or limit switches, to prevent accidents.
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Warranty: Opt for parts with a warranty for added peace of mind. This ensures you’re covered if anything goes wrong.
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Cost-Effectiveness: Consider cost-effective replacements that save money without sacrificing quality. Look for direct replacements to avoid extra expenses.
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Energy Efficiency: Choose components that seal tightly or improve efficiency, like duct gaskets, to save energy and reduce costs.