Suburban Furnace Model SF-20 Tune-Up Kit
Kit #1 has the old style burner access gasket which is applicable to between serial numbers 934701426 and 094101431, (Kit #2) has the new style burner access gasket applicable to above serial number 094101431 to present. For parts outside of these serial numbers please reference the exploded parts view item links below the tune-up kits. *See serial number note at the bottom of the page*
Tune-Up Kit #1 Contents: (links in blue)
Item#22 Electrode With Lead (link): 232286 (New P# 525009) (Above S/N's 934701426 To 171416095)
Item#59 Limit Switch (link): 232503 (Above S/N 921403895)
Item#45 Sail Switch (link): 232261 (New P# 525003) (Above S/N 924201894)
Item#12 Burner Access Door Gasket (link): 070811 (New P# 525010) (Below S/N 094101431)
IN-STOCK
Tune-Up Kit #2 Contents: (links in blue)
Item#22 Electrode With Lead (link): 232286 (New P# 525009) (Above S/N's 934701426 To 171416095)
Click the Down Arrow To View Complete Kit Contents
Item#59 Limit Switch (link): 232503 (Above S/N 921403895)
Item#45 Sail Switch (link): 232261 (New P# 525003) (Above S/N 924201894)
Item#12 Burner Access Door Gasket (link): 071263 (New P# 525031) (Above S/N 094101431)
IN-STOCK
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Suburban Furnace Model SF20 Exploded Parts View Links
*Not Shown* Blower Motor / Blower Wheel / Combustion Wheel (link): 233101 or 232682+350129+350211
Item#2 Thermostat, White (link):161154
Item#2 Thermostat, Black (link): 161210
Item#6 Duct Cover (link): 050733
Item#7 Duct Collar (link): 050715
Item#9 Manifold Assembly 171595 Non-Stocked Item Above S/N 021206467
Item#11 Orifice (link): 180188 Below S/N 021206467 (NPT Threads)
Item#11 Orifice (link): 180305 Above S/N 021206467 (Metric Threads)
Item#12 Burner Access Door Gasket (link): 070811 Below S/N 094101431 (New P# 525010)
Item#12 Burner Access Door Gasket (link): 071263 Above S/N 094101431 (New P# 525031)
Item#22 Electrode (link): 231898 Below S/N 921403895
Item#22 Electrode (link): 232166 Between S/N 921403895 - 934701426
Item#22 Electrode (link): 232286 Above S/N 934701426 To 171416095 (New P# 525009)
Item#22 Electrode (link): 232286-OS Above S/N 934701426 To 171416095 (New P# 525009)
Item#22 Electrode (link): 525051 Above S/N 171416095
Item#23 Burner Assembly (link): 010767
Item#26 Gas Valve (link): 161133 Below S/N 921403846
Item#26 Gas Valve (link): 161070 Between S/N's 921403846 and 971303163
Item#26 Gas Valve (link): 161122 Above S/N 971303163 (New P# 525044)
Item#27 Gas Inlet Pipe (link): 171574
Item#31 Vent Cap & Exhaust Tube Assembly (link): 260553
Item#32 Intake Tube Assembly (link): 051248
Item#34 Front Half Combustion Air Housing Assembly (link): 390852
Item#37 Rear Half Combustion Air Housing Assembly (link): 390849
Item#38 Combustion Wheel (link): 350189 (New P# 350211)
Item#39 Firewall Gasket (link): 071084
Item#40 OEM Motor Assembly (link): 233101 NLA Below S/N 012205202
Item#40 After-Market Motor Assembly (link): 233101-NBK 20511 Below S/N 012205202
Item#40 After-Market Motor Assembly (link): 233101MC Below S/N 012205202
Item#40 OEM Motor Assembly (link): 232682 Above S/N 012205202
Item#40 After-Market Motor Assembly (link): 232682-NBK 20566 Above S/N 012205202
Item#42 Front Half Room Air Blower Housing Assembly (link): 390872
Item#44 Rear Half Room Air Blower Housing Assembly (link): 390851
Item#45 Sail Switch (link): 230509 Below S/N 924201894 (New P# 525024)
Item#45 Sail Switch (link): 232261 Above S/N 924201894 (New P# 525003)
Item#48 On / Off Switch (link): 232351
Item#50 OEM Ignition Module Board (link): 521099
Item#50 After-Market Ignition Module Board (link): 521099MC
Item#50 Dinosaur Electronics Ignition Module Board (link): FAN50PP
*Not Shown* Wiring Kit (link): 520832 (to convert to new 3 try ignition board)
Item#52 Room Air Blower Wheel (link): 350129
Item#57 Firewall Gasket (link): 070808
Item#59 Limit Switch (link): 232503 Above S/N 921403895
*Not Shown* Gasket Kit, Complete, (link): 520799 NLA
Available Downloads:
Suburban SF-20 - Service Manual
Suburban Furnace SF-20 - Installation Instructions
Suburban Gas Furnace Model SF-20 - Users Manual
*Please Note* All Suburban Serial Numbers manufactured after January 1990, will be nine digits. The first two (2) digits signify the year of manufacture. The next set of digits, indicate the week of the year and the remaining digits are serial numbers.
For Example: Even though numerically higher, 912000060 (Year 1991) is lower than serial number 014103973 (Year 2001) due to the year of manufacture.