Suburban Furnace Model SF-35 Tune-Up Kit

(Kit #1) has the old style burner access gasket applicable between serial numbers 934701426 and 094101431, (Kit #2) has the new style burner access gasket which is applicable above serial number 094101431. 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 Above S/N 934701426 (New P# 525009)

• Item#59 Limit Switch (link): 232504 Above S/N 921403895 (New P# 525006)
• Item#45 Sail Switch (link): 232261 Above S/N 924201894 (New P# 525003)
• Item#12 Burner Access Door Gasket (link): 070811 Below S/N 094101431 (New P# 525010)
  

Tune-Up Kit #2 Contents: (links in blue)

• Item#22 Electrode With Lead (link): 232286 Above S/N 934701426 (New P# 525009)

• Item#59 Limit Switch (link): 232504 Above S/N 921403895 (New P# 525006)
• Item#45 Sail Switch (link): 232261 Above S/N 924201894 (New P# 525003)
• Item#12 Burner Access Door Gasket (link): 071263 Above S/N 094101431 (New P# 525031)
  
  

SUBURBAN FURNACE SF-35 EXPLODED PARTS VIEW LINKS

*Not Shown* Blower Motor And Wheel Kits (link): 233102 or 232684 / 350129 / 521235

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 (link): 171596
Item#11 Orifice (link): 180222 Below S/N 021206467 (NPT Threads)
Item#11 Orifice (link): 180308 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's 921403895 and 934701426

Item#22 Electrode (link): 232286 Above S/N 934701426 (New P# 525009)

Item#22 Electrode (link): 232286-OS Above S/N 934701426 (New P# 525009-OS)

Item#23 Burner Assembly (link): 010865

Item#23 Burner Assembly (link): 010865-OS

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#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): 390848

Item#38 Combustion Air Wheel (link): 350184 (New P# 521235)

Item#39 Firewall Gasket (link): 071084

Item#40 OEM Motor Assembly (link): 233102 NLA Below S/N 012003642

Item#40 After-Market Motor Assembly (link): 233102-NBK 20512 Below S/N 012003642

Item#40 Motor Assembly (link): 233102MC Below S/N 012003642

Item#40 OEM Motor Assembly (link): 232684 Above S/N 012003642

Item#40 After-Market Motor Assembly (link): 232684-NBK 20565 Above S/N 012003642

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): 231630 Below S/N 921403896

Item#59 Limit Switch (link): 232504 Above S/N 921403895 (New P# 525006)

*Not Shown* Gasket Kit, Complete (link): 520799 NLA

Available Downloads:

• Suburban Furnace SF-35 - Service Manual
• Suburban Furnace SF-35 - Installation Instructions
• Suburban Gas Furnace Model SF-35 - Users Manual
• Suburban Master Parts List

*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 is lower than serial number 014103973 due to the year of manufacture.