This is my collection of Subaru part numbers, primarily for BC/BF/BJ Legacies. No guarantee is made of the accuracy of this information.
| 22680AA170 | aluminum housing MAF |
| 22680AA160 | plastic housing MAF |
| 22690AA161 | turbo oxygen sensor |
| 22690AA150 | non-turbo oxygen sensor |
| 22060AA031 | updated knock sensor |
| 22633AA060 | throttle position sensor |
| 22630AA041 | water temperature sensor |
| 21203AA030 | temperature gauge sender |
| 22012AA020 | pressure sensor |
| 14774AA341 | pressure exchange solenoid |
| 16102AA013 | wastegate control solenoid |
| 25232AA020 | ignition relay |
| 82501GA240 | fuel pump relay |
| 32005AA052 | 5MT reverse switch |
| 14774AA351 | purge control solenoid |
| 42084GA460 | turbo auxiliary purge valve |
| 42036AA040 | turbo charcoal canister |
| 42036AA000 | non-turbo charcoal canister |
| 22611AA564 | 90-91 5MT non-turbo ECU |
| 22611AA383 | 90-91 4EAT non-turbo ECU |
| 22611AA933 | 92 non-turbo ECU |
| 22611AB060 | 93 5MT non-turbo ECU |
| 22611AB052 | 93 4EAT non-turbo ECU |
| 22611AB770 | 94 5MT non-turbo ECU |
| 22611AB760 | 94 4EAT non-turbo ECU |
| 22611AA694 | turbo ECU |
| 623006021 | acorn lug nut |
| 28055AA002 | lug bolt |
| 694005092 | lug wrench |
| 26402FA071 | single stage brake booster |
| 725042000 | brake booster seal |
| 26151AA163 | brake booster vacuum hose |
| 26536AA001 | brake line banjo bolt |
| 114130151 | copper brake line washer |
| 901130011 | front caliper bracket bolt |
| 901120036 | rear caliper bracket bolt |
| 26310AA092 | turbo front brake rotor |
| 26310AA112 | turbo rear brake rotor |
| 736016020 | brake booster/pedal pin |
| 051108001 | brake booster/pedal pin clip |
| 26310AC040 | WRX front brake rotor |
| 26471AA032 | ABS master cylinder rebuild kit |
| 26471AA010 | non-ABS master cylinder rebuild kit |
| 26401AC040 | turbo brake master cylinder |
| 26451AA000 | brake master cylinder reservoir |
| 26453AA002 | brake master cylinder cap |
| 725736010 | brake master cylinder reservoir seal |
| 26771AA000 | Bosch ABS hydraulic unit |
| 26730AA001 | Nippon ABS hydraulic unit |
| 26731AA200 | Nippon 2E ABS hydraulic unit |
| 26740AA040 | ABS G-sensor |
| 87022AA051 | 90 5MT cruise control unit |
| 87022AA200 | 91-94 5MT non-turbo cruise control unit |
| 87022AA320 | 91-94 5MT turbo cruise control unit |
| 87022AA310 | 4EAT turbo cruise control unit |
| 87022AA190 | 4EAT non-turbo cruise control unit |
| 30100AA630 | turbo clutch disc |
| 30210AA261 | turbo pressure plate |
| 30502AA100 | turbo throwout bearing |
| 30620AA021 | turbo clutch slave cylinder |
| 30622AA001 | turbo clutch slave cylinder kit |
| 30542AA021 | turbo clutch lever boot |
| 30546AA030 | turbo clutch lever release spring |
| 30620AA100 | WRX clutch slave cylinder |
| ST2031055000 | STi front strut top mount |
| E4010FA000 | strut tower bar |
| 927760000 | strut mount socket |
| 16175AA150 | throttle body gasket |
| 22659AA060 | IAC valve gasket |
| 14035AA290 | intake manifold gasket |
| 11044AA282 | turbo head gasket |
| 11033AA114 | non-turbo head gasket |
| 44022AA170 | manifold-to-uppipe gasket |
| 44022AA150 | uppipe-to-turbo gasket |
| 44022AA180 | turbo-to-downpipe gasket |
| 44022AA160 | crosspipe gasket |
| 14038AA000 | turbo exhaust manifold gasket |
| 44022AA020 | non-turbo exhaust manifold gasket |
| 44022AA122 | turbo donut exhaust gasket |
| 44022AA062 | non-turbo donut exhaust gasket |
| 44059AA010 | midpipe bolt |
| 44044AA010 | midpipe spring |
| 802008270 | midpipe nut |
| 902370010 | exhaust nut, mild |
| 902370029 | exhaust nut, stainless |
| 44059AA030 | pre-downpipe exhaust bolt |
| 800910340 | turbo and uppipe stud |
| 800910390 | exhaust manifold stud |
| 012510250 | lower downpipe mounting bolt |
| 010110250 | upper downpipe mounting bolt |
| 73008AA710 | 90-91 Calsonic A/C compressor |
| 73011AA091 | 92-93 Calsonic A/C compressor |
| 73011AA040 | 90-91 Zexel A/C compressor |
| 73011AA080 | 92-93 Zexel A/C compressor |
| 73011AA120 | 94 R-134a A/C compressor |
| 73061AA031 | Calsonic evaporator core |
| 73061AA010 | Zexel evaporator core |
| G3110AS100 | 90-91 Calsonic R-134a retrofit kit |
| G3110AS120 | 92-93 Calsonic R-134a retrofit kit |
| G3110AS000 | 90-91 Zexel R-134a retrofit kit |
| G3110AS010 | 92 Zexel R-134a retrofit kit |
| G3110AS020 | 93 Zexel R-134a retrofit kit |
| 72024AA000 | blower motor resistor pack |
| 498307500 | Select Monitor |
| 498347502 | 90 ECU/TCU Select Monitor cartridge |
| 498348400 | 91 ECU/TCU Select Monitor cartridge |
| 498347601 | 90-91 cruise/climate Select Monitor cartridge |
| 498348800 | 92 ECU/TCU/cruise/climate Select Monitor cartridge |
| 498349200 | 93-94 ECU/TCU/cruise Select Monitor cartridge |
| 498347700 | air suspension Select Monitor cartridge |
| 86661FE020 | WRX STi intercooler spray bottle/pump |
| 86636FA120 | WRX STi intercooler spray nozzle |
| 83001FE020 | WRX STi intercooler spray switch |
| ST165464S000 | STi air filter |
| ST440314S000 | STi exhaust hanger |
| ST4511355000 | STi radiator cap |
| 10103AA310 | EJ22T short block |
| ST1231055010 | STi flywheel |
| ST3010055100 | STi clutch |
| 15010AA108 | turbo oil pump |
| 27011AA131 | rear 3.90 LSD |
| 21132AA010 | turbo coolant filler tank |
| 45113GA022 | radiator cap |
| 807611172 | tank-to-turbo coolant hose |
| 21132AA075 | WRX coolant filler tank |
| 10100BK600 | EJ25T engine assembly |
| 14471AA001 | turbo recirculating blowoff valve |
| 46023AA110 | turbo compressor inlet rubber elbow |
| 14412AA070 | Stock turbo |
| 14412AA080 | RHB52 VF12 turbo |
| 14412AA092 | TD05-16G turbo |
| SOA4786010 | non-turbo head |
| SOA4786020 | turbo head, right |
| SOA4786030 | turbo head, left |
| 11095AA090 | head bolt |
| 10103AA280 | non-turbo short block |
| 10103AA310 | turbo short block |
| 16611AA150 | turbo injector |
| 42021AC024 | turbo fuel pump |
| 44033AA002 | turbo chimney |
| 047406120 | chimney bolt |
| 23700AA090 | alternator |
| 23300AA220 | 5MT starter |
| 23300AA230 | 4EAT starter |
| 44102AA030 | turbo downpipe |
| 20100AA120 | turbo crossmember |
| 20100AA101 | non-turbo crossmember |
| ST4100055110 | STi motor mount, right |
| ST4100055120 | STi motor mount, left |
| 16611AA231 | STi injector |
| 22650AA034 | 90-91 AT and 92-94 non-turbo IAC valve |
| 22650AA050 | 90-91 MT non-turbo IAC valve |
| 22650AA111 | turbo IAC valve |
| 11140AA046 | oil dipstick |
| 31100AA521 | turbo torque converter |
| 31100AA552 | non-turbo torque converter |
| 22670AA050 | fuel pressure regulator |
| SOA925H500 | FWD CV axle |
| SOA925H600 | 4WD front CV axle |
| 28044AA000 | axle nut |
| 051906452 | axle spring pin |
| 28015AA070 | outer front hub seal |
| 28015AA021 | inner front hub seal |
| 22433AA400 | later Diamond coil pack |
| 22433AA360 | 4EAT and/or turbo coil pack |
| 22433AA370 | 5MT non-turbo coil pack |
| 13028AA102 | timing belt |
| 809218140 | alternator and power steering belt |
| 73013AA000 | air conditioning belt |
| 42072PA010 | fuel filter |
| 42031AA040 | fuel filter rubber padding |
| 42053AA000 | fuel filter mounting band |
| 42050AA020 | fuel filter bracket |
| 16546AA020 | air filter |
| 901120059 | air filter housing bolt |
| 15208AA060 | oil filter |
| 11126AA000 | oil drain plug crush washer |
| 803926040 | manual transmission drain plug gasket, aluminum |
| 803926070 | manual transmission drain plug gasket, copper |
| 22401AA310 | spark plug |
| 11810AA000 | PCV valve |
| 90815AA380 | 92-94 turbo hood blanket |
| 90814AA000 | hood blanket clip |
| 21200AA072 | thermostat |
| 21111AA007 | non-turbo water pump |
| 21111AA026 | 91 turbo water pump |
| 21111AA065 | 92-94 turbo water pump |
| 21114AA050 | water pump gasket |
| 11060AA060 | turbo thermostat cover |
| 11060AA070 | non-turbo thermostat cover |
| 21236AA010 | thermostat cover gasket |
| SOA635002 | factory coolant, 1 quart |
| SOA868V9210 | factory coolant, 1 gallon |
| 13294AA012 | valve cover gasket |
| 13271AA051 | valve cover bolt grommet |
| 64620AA020ML | manual seatbelt, right |
| 64620AA030ML | manual seatbelt, left |
| 64610AA220ML | lap belt, right |
| 64610AA230ML | lap belt, left |
| 62180AA000ML | right front inside door handle plastic cover |
| 62180AA010ML | left front inside door handle plastic cover |
| 62180AA020ML | right rear inside door handle plastic cover |
| 62180AA030ML | left rear inside door handle plastic cover |
| 84931AA130 | 92-94 sidemarker bulb socket |
| 84934AA050 | 92-94 sidemarker plastic mounting ear |
| E3610AS940 | hitch-mounted bike rack |
| SOA447D466 | power antenna mast |
| 36015GA111 | clutch pedal pad |
| 66130AA050 | 1.5 din pocket |
| 66128AE000 | single din pocket |
| E1017AA100 | metal step plates |
| 93073FE580 | STi trunk emblem |
| 57497FE000 | STi key |
| SOA307T320 | STi stainless mug |
| SOA307T310 | STi black plastic mug |
| MSA6P8930 | Small envelope |