Dometic Furnace Model DFLD40121 Tune-Up And Repair Kits Kit 1 Only applicable to serial number 7299127 & Before Tune-Up Kit 1 Includes ( individual part links below ): Item 4510 Electrode Assembly (link): 35100-OS Item 4524 Curved Blade Sail Switch (link): 31094 NLA (Replaced By P 31094-OS )(SN 81689155 & Prior) Item 4560 Limit Switch, 190° (link): 31091-OS IN-STOCK Kit 2 Only applicable to serial numbers after 7299127 Tune-Up Kit 2 Includes ( individual part links below ): Item 4510 Electrode Assembly (link): 35100-OS Item 4524 Flat Blade Sail Switch Kit (link): 33082-OS (New P 36165-OS)(After SN 81689155) Item 4560 Limit Switch, 190° (link): 31091-OS IN-STOCK _________________________________ Dometic Furnace DFLD40121 Exploded Parts View Links *Not Shown* Blower Motor And Wheel Kit (link): 30720/30619/33126 Item 4505 20 Amp Lit Circuit Breaker (link): 32345 Item 4505 20 Amp Non-Lit Circuit Breaker (link): 34015 Item 4510 Electrode Assembly (link): 35100 Item 4510 Electrode Assembly (link): 35100-OS Item 4516 Gas Valve (link): 31098 Item 4524 OEM Curved Blade Sail Switch (link): 31094 NLA (Replaced By P 31094-OS )(Serial 7299127 & Below) Item 4524 Curved Blade Sail Switch (link): 31094-OS (SN 7299127 & Below) Item 4524 Flat Blade Sail Switch Kit (link): 33082 (New P 36165) (After SN 7299127) Item 4524 Flat Blade Sail Switch Kit (link): 33082-OS (New P 36165-OS)(After SN 7299127) Item 4524 Flat Blade Sail Switch Only (link): 33063 (After SN 7299127) Item 4528 Sail Switch Mount (link): 33083 Item 4539 DSI Board Bracket 30627 (Non Stocked Item) Item 4541 OEM Ignition Board (link): 31501 Item 4541 After-Market Ignition Module (link): 35-535811-113 Item 4541 After-Market Ignition Board (link): 31501MC Item 4541 Dinosaur Electronics Ignition Module (link): FAN50PP Item 4547 OEM Blower Motor (link): 30720 Item 4547 After-Market Blower Motor (link): 30720-NBK 20897 Item 4560 Limit Switch 190° (link): 31091 Item 4560 Limit Switch 190° (link): 31091-OS Item 4560 Limit Switch 190° (link): 31091MC Item 4565 Manifold Extension 35712 (Non Stocked Item) Item 4573 Gas Line Grommet (link): 35706 Item 4575 2 Inch Duct Adapter (link): 36688 *Not Shown* 2 Inch Flexible Heater Duct Hose (link): E2-25 Item 4576 4 Inch Duct Adapter (link): 31474 *Not Shown* 4 Inch Flexible Heater Duct Hose (link): E4-25 Item 4577 4 Inch Duct Cover Plate (link): 31361 Item 4578 Air Restrictor 31089 (Non Stocked Item) Item 4580 Burner Assembly (link): 30209 Item 4580 Burner Assembly (link): 30209-OS Item 4594 Orifice (48 LP) (link): 30887 Item 4610 Casing Leg 31244 (Non Stocked Item) Item 4615 Vertical Bottom Adapter Plate 30205 (Non Stocked Item) Item 4620 Horizontal Adapter Plate (link): 30261 Item 4625 Blower Wheel w/ Clamp (link): 33126 Item 4631 Combustion Wheel w/ Clamp (link): 30619 Item 4683 Vent Cover Panel 31368 (Non Stocked Item) Item 4689 Vent Panel Extension 33055 (Non Stocked Item) Item 4705 Door Vent Assembly (link): 33050 Item 4755 Thermostat, Heat Only, Black, Analog (link): 32300 Item 4756 Thermostat, Heat Only, Brown, Analog (link): 38452 NLA Item 4757 Thermostat, Heat Only, White, Analog (link): 38453 *Not Shown* Thermostat, Heat Only, White, Digital (link): 961000813 Item 4850 Blower Housing (link): 30702 Item 4853 Front Blower Housing 32448 (Non Stocked Item) Item 4855 Wiring Harness 33060 (Non Stocked Item) Item 4865 Exhaust Adapter 33173 (Non Stocked Item) Item 4870 Heat Exchanger 33302 (Non Stocked Item) Updated On: 2/20/26
