Suburban Ignition Control Circuit Board 521099 For All 12 Volt Furnaces

The NEW Suburban Ignition Control Circuit Board (Part #521099) is a high-quality 12-volt replacement board designed for use in Suburban RV furnaces. This control board replaces several legacy Suburban models, including 520741 and 520820, and fits all Suburban 12V furnaces. Engineered for reliability, this board ensures your furnace operates safely, efficiently, and consistently—keeping your RV warm and comfortable in any season.

Key Specifications

• Compatibility: Suburban Furnaces (NT12FC, NT12L, NT12LE, and all 12V models)

• Replaces Suburban Boards: 230483, 230587, 231328, 231427, 231741, 233012, 520741, 520820, 520871

• Power Source: 12 Volt DC

• Dimensions: 4-1/2" (L) x 2-5/8" (W)

• Certification: ISO 9001:2015 Certified

• Manufacturer Part Number: 521099

• Warranty: Limited 90-Day Supplier Warranty

Features & Benefits

• Direct Replacement: Designed to replace a wide range of Suburban ignition control boards for simple, reliable installation.

• 12V Compatibility: Fits all Suburban 12V furnaces; not suitable for 24V AC models.

• Reliable Operation: Provides consistent ignition performance for safe and efficient furnace operation.

• High Quality Construction: Manufactured under ISO 9001:2015 certification for proven quality and performance.

• Trusted Brand: Backed by Suburban Manufacturing, a leader in RV heating and comfort systems.

• Wide Model Compatibility: Works with popular NT, SF, SH, SHD, and SFV furnace series used in many RVs and trailers.

Compatible Models

This ignition control board fits a wide range of Suburban 12V furnace models, including but not limited to:

• NT Series: NT-12, NT-16, NT-20, NT-24, NT-25, NT-30, NT-34, NT-35, NT-40, NT-42

• SF Series: SF-20, SF-25, SF-30, SF-35, SF-42 (including F, FQ, and Q variants)

• SFV Series: SFV-20, SFV-25, SFV-30, SFV-35, SFV-42

• SH Series: SH-35, SH-42 (including F models)

• SHD2542 Series

Keep your RV furnace performing at its best with the Suburban 12-Volt Ignition Control Circuit Board Replacement. Engineered to replace Suburban part numbers 520741, 520820, and others, this unit ensures reliable ignition and steady operation across a wide range of Suburban furnace models. Whether upgrading an older system or replacing a faulty board, this component restores safe, dependable furnace performance and supports Suburban’s legacy of quality, longevity, and reliability trusted by RV owners nationwide.