Features: Ensures your furnace operates smoothly with our 520814 Circuit Board, a direct fit for multiple Suburban models and an essential upgrades for reliabled performances. This DC12V module board is engineered to meet OEM specifications for durability and longevity in demanding environments. For enthusiasts and professional seeking to maintain or repair their mobile heating system, ensuring comfortable. Perfectly for use in various Suburban furnaces such as SW4D, SW6D, SW6DE, SW6DEL, SW10DE, and SW12DEM, this circuit board is a must for your travel adventures. This circuit board represents a investment for those dedicated to preserving the condition of their recreational vehicle's amenities. Specifications: Model: 520814 Circuit Board Size:about 15x9x6cm/5.9x3.54x2.36in for Suburban Furnace SW4D SW6D SW6DE SW6DEL SW10DE SW12DEM Fit for 520871 520820 33550L Support：DC12V Package Includes: 1PC 520814 Circuit Board note: Due to the problem of lighting effects there is certain tolerances in product, please understand. Please allow 0-1cm error due to the measurement.