The parts listed below are BMW factory parts from various models known to
be able to be retrofitted to the BMW E12. Listed with each part or group
of parts is a number 1-5. This number indicates a subjective
determination of the complexity/degree of difficulty of accomplishing the
retrofit. A 1 would indicate direct installation exactly as the original
factory part. A 5 would indicate using BMW factory parts as an upgrade
requiring considerable work and or modification to retrofit properly.
Listed next to the number will be the letter S or U. This is another
subjective determination as to whether the retrofit part is considered
same as stock (S), or an upgrade as compared to stock (U). An upgrade is
considered to be a part that offers additional strength, performance,
durability or appearance as compared to the stock part. Since many parts
are engineered with a balance of comfort verses performance, any part
listed with a U must be analyzed by the car owner to determine whether the
potential decrease in comfort is outweighed by the increase in performance
or durability for his or her own tastes.
| PART NAME | DONOR CAR MODELS | NOTES: |
| ENGINE PARTS: | ||
| Fuel Injectors (75-78 only) | E23 77only | 1,S |
| E24 77 only | 1,S | |
| Fuel Injectors (79-81 only) | E23 80-81 | 1,S |
| E24 80-81 | 1,S | |
| Euro E23, E24 79-80 | 1,S | |
| Aux. Air Valve (75-78 only) | E24 77 only | 1,S |
| Aux. Air Valve (80-81 only) | E23 80-81 | 1,S |
| E24 80-81 | 1,S | |
| Thermal time switch | E23 - All | 1,S |
| E24 - All | 1,S | |
| E28 - All | 1,S | |
| E30 - All | 1,S | |
| Fuel injection coolant sensor | E23 77-84 | 1,S |
| E28 - 528e 82-3/87 | 1,S | |
| E28 - 533i 83-84 | 1,S | |
| E30 - 318i 84-85 | 1,S | |
| E30 - 325(not "I") 84-88 | 1,S | |
| Fuel injection relay (79-81 only) | E23 78-81 | 1,S |
| E24 79-81 | 1,S | |
| Cold start valve | E23, E24, E28 82-88 | 1,S |
| Fuel pressure regulator (78-81 only) | E23 78-81 | 1,S |
| E24 78-81 | 1,S | |
| Air flow meter (77-78 only) | E23 77-79 | 1,S |
| E24 77-79 | 1,S | |
| Air flow meter (79-81 only) | E23 80-81 | 1,S |
| E24 80-81 | 1,S | |
| Water pump | E3 - All | 1,S |
| (verify fan clutch type below) | E9 - All | 1,S |
| E23 78-79 | 1,S | |
| E24 - 77-79 | 1,S | |
| Fan clutch (new style-large bolt) | E21 323i Euro | 1,S |
| (BMW made a running design change | E23 78-79 | 1,S |
| between 79-81. If you have the old | E24 77-79 | 1,S |
| style small bolt clutch, you should | ||
| update to new style. It requires an new | ||
| fan blade and water pump | ||
| PART NAME | DONOR CAR MODELS | NOTES: |
| Fan blade (new style) | E21 323i Euro | 1,S |
| E23 78-87 | 1,S | |
| E24 77-87 | 1,S | |
| E28 - All | 1,S | |
| Auxiliary Fan | E23 - All | 1,S |
| E24 - All | 1,S | |
| E28 - All | 1,S | |
| E30 - All | 1,S | |
| 91 deg. Fan switch | E21 - All except 323i | 1,S |
| E23 - All | 1,S | |
| E24 6/82-86 | 1,S | |
| E28 - ALL | 1,S | |
| 99 deg. Fan switch | E21 - All except 323i | 1,S |
| E23 - All | 1,S | |
| E24 6/82-86 | 1,S | |
| E28 - All | 1,S | |
| 82 deg. Fan switch | E21 - All except 323i | 2,U |
| (minor filing of contacts required. Replaces 91 | E23 - All | 2,U |
| deg. Put 91 deg in place of 99 deg.) | E24 6/82-86 | 2,U |
| E28 - All | 2,U | |
| Radiator (76-81 only) | E24 77-82 | 1,S |
| (verify auto. or manual trans.) | ||
| Radiator Cap | E10 - All | 1,S |
| E21 - All | 1,S | |
| E24 - All | 1,S | |
| A/C Compressor | E23 - All | 1,S |
| (verify r12 or r134) | E24 - All | 1,S |
| E28 - All except 528e | 1,S | |
| E32 88-92 735i | 1,S | |
| E34 89-93 535i | 1,S | |
| A/C Evaporator (79-81 only) | E24 77-82 | 1,S |
| A/C dryer (77-81 only) | E24 77-82 | 1,S |
| Engine mounts (2 required) | E3 - All | 1,S |
| E9 - All | 1,S | |
| E24 77-82 | 1,S | |
| Cylinder head | E23 - All | 1,S |
| (note: only use head with casting stamp '81 or | E24 - All | 1,S |
| later) | E28 - All except 528e | 1,S |
| 3.3 or 3.5 liter short block | E23 - All | 2,U |
| E24 - All | 2,U | |
| E28 - All | 2,U | |
| 3.5L 182 h.p. engine w/Motronic | E23 w/M30 3.5 | 5,U |
| E24 w/M30 3.5 except Euro | 5,U | |
| E28 w/M30 3.5 | 5,U | |
| 3.5L 208 h.p. engine w/Motronic | E32 w/M30 89-93 | 5,U |
| E24 w/M30 89-93 | 5,U | |
| Rocker arms | any M30 engine | 1,S |
| Rocker shafts | any M30 engine | 1,S |
| Oil pump | E24 77-82 | 1,S |
| Alternator 55 amp (75-76 only) | E3 - All | 1,S |
| Alternator 55 amp (77-78 only) | E24 77 only | 1,S |
| Alternator 65 amp (79-81 only) | E23 78-81 | 1,S |
| (Note: could be used as an upgrade | E24 78-81 | 1,S |
| for 75-78, 2-3,U) | ||
| PART NAME | DONOR CAR MODELS | NOTES: |
| Voltage regulator (75 only - external) | E3 - All | 1,S |
| E10 - All | 1,S | |
| Voltage regulator (76-81 only) | E21 - All | 1,S |
| E23 - All | 1,S | |
| E24 - All | 1,S | |
| E28 - All | 1,S | |
| E32 - All | 1,S | |
| E34 (535i, M5) - All | 1,S | |
| Fuse box cover | E23 78-80 | 1,S |
| E24 78-80 | 1,S | |
| DRIVETRAIN: | ||
| Clutch disc | E3 - All | 1,S |
| E9 - All | 1,S | |
| E23 78-3/84 | 1,S | |
| E24 78-3/84 | 1,S | |
| E28 except 528e 82-3/84 | 1,S | |
| Pressure plate | E3 - All | 1,S |
| E9 - All | 1,S | |
| E24 77-3/84 | ||
| E28 except 528e 82-3/84 | ||
| Throw out bearing | E21 - All except 323i | 1,S |
| E23 - All | 1,S | |
| E24 - All | 1,S | |
| E28 - All | 1,S | |
| E30 - All except 323i 83-3/84 | 1,S | |
| E34 (M20, M30, M50, M70, 3L) All | 1,S | |
| E39 (M52) All | 1,S | |
| Clutch master cylinder | E21 - All | 1,S |
| E23 - All | 1,S | |
| E24 77-82 | 1,S | |
| Clutch slave cylinder | E21 - All | 1,S |
| E24 - All | 1,S | |
| E28 - All | 1,S | |
| E30 - All | 1,S | |
| 5 speed transmission- Getrag 265 | E23 80-81,85 | 4,U |
| E24 80-81,85 | 4,U | |
| E24 Euro 80-82 | 4,U | |
| E28 528e 82 only (req "Big 6" bell housing) | 4,U | |
| Transmission mount (auto & manual) | E3 - All | 1,S |
| E9 - All | 1,S | |
| E24 77-82 | 1,S | |
| Transmission mounting bracket - dual | E23 5 speed (85 only) | 2,U |
| (requires 2-E28 trans. Mounts | E24 5 speed (85 only) | 2,U |
| E28 535i-5 speed (85 only) | 2,U | |
| Differential | E3 - All | 1,S,U |
| (some cars came with limited slip or different | E9 - All | 1,S,U |
| ratios than stock) | E24 77-82 | 1,S,U |
| E28 (82 only) | 1,S,U | |
| PART NAME | DONOR CAR MODELS | NOTES: |
| SUSPENSION: | ||
| Front shocks (75-76 only) | E24 77-6/78 | 1,S |
| Front shocks (77-81 only) | E24 7/78-82 | 1,S |
| Rear shocks | E24 77-82 | 1,S |
| Front subframe | E24 77-82 | 1,S |
| Rear subframe | E24 77-82 | 1,S |
| Front strut tower mount | E24 77-82 | 1,S |
| Front strut housing | E24 77-82 | 1,S |
| Rear shock mount | E24 77-82 | 1,S |
| Rear A-arms | E24 77-82 | 1,S |
| 1,S | ||
| Power steering pump (75-4/81 only) | E24 77-4/81 | 1,S |
| Power steering pump (5/81 - 9/91 only) | E24 5/81 - 4/84 | 1,S |
| E28 82-83 | 1,S | |
| Left & right tie rod | E24 77-82 | 1,S |
| Center track rod | E24 77-82 | 1,S |
| Left control arm | E24 77-82 | 1,S |
| Right control arm | E24 77-82 | 1,S |
| Strut stabilizer rod | E24 77-82 | 1,S |
| Strut stabilizer rod bushing | Euro E12-M535i 80-81 | 1,U |
| (mount in front of subframe, M535i part is firmer | ||
| than stock U.S. e12) | ||
| Front sway bar (24 mm) | Euro E12-M535i 80-81 (31 35 1 113 024) | 2,U |
| Rear sway bar (18 mm) | Euro E12-M535i 80-81 (33 55 1 123 945) | 2,U |
| Front inner wheel bearing | E3 - All | 1,S |
| E9 - All | 1,S | |
| E10 2002tii 72-74 | 1,S | |
| E21 77-79 | 1,S | |
| E24 77-6/78 | 1,S | |
| Front outer wheel bearing | E3 - All | 1,S |
| E9 - All | 1,S | |
| E10 2002tii 72-74 | 1,S | |
| E21 77-79 | 1,S | |
| E24 77-6/78 | 1,S | |
| Front wheel bearing seal | E3 - All | 1,S |
| E9 - All | 1,S | |
| E10 2002tii 72-74 | 1,S | v|
| E21 77-79 | 1,S | |
| E24 77-6/78 | 1,S | |
| Rear inner wheel bearing | E3 - All | 1,S |
| E9 - All | 1,S | |
| E23 78-81 | 1,S | |
| E24 77-82 | 1,S | |
| Rear outer wheel bearing | E3 - All | 1,S |
| E9 - All | 1,S | |
| E23 78-81 | 1,S | |
| E24 77-82 | 1,S | |
| Rear wheel bearing seals (2) | E3 - All | 1,S |
| E9 - All | 1,S | |
| E23 78-81 | 1,S | |
| E24 77-82 | 1,S | |
| PART NAME | DONOR CAR MODELS | NOTES: |
| BRAKES: | ||
| Front brake caliper (75-76 only) | E3-All | 1,S |
| E10 2002tii 72-74 | 1,S | |
| Front brake caliper (77-81 only) | E24 77-82 | 1,S |
| Rear brake caliper | E3 - All | 1,S |
| Master cylinder | E3 - All | 1,S |
| (note cars before 9/78 require 2 plugs) | E9 - All | 1,S |
| Booster | E3 - All | 1,S |
| E9 - All | 1,S | |
| Front brake hose | E3 - All | 1,S |
| (Note: 4 ea. per car) | E9 - All | 1,S |
| E10 - All | 1,S | |
| E21 - All | 1,S | |
| E23 - All | 1,S | |
| E24 77-82 | 1,S | |
| Hand brake cables | E24 77-82 | 1,S |
| BODY/EXTERIOR: | ||
| Hood roundel | All except 8 series | 1,S |
| Euro bumpers | Euro E12 | 4,U |
| Left fender (front, no holes for turn signals) | Euro E12 (41 35 1 820 467) | 1,U |
| (for use w/Euro front bumper/turn signal) | ||
| Right fender (front, no holes for turn signals) | Euro E12 (41 35 1 820 468) | 1,U |
| (for use w/Euro front bumper/turn signal) | ||
| Front spoiler (BMW motorsport) | Euro E12 - M535i (51 71 2 205 436) | 3,U |
| (for use w/Euro front bumper) | ||
| Trunk spoiler (BMW Motorsport) | Euro E12-M535i (51 71 2 205 437) | 1,U |
| Front grill - L (for headlamp washing) | M535i 80-81 (51 13 1 848 355) | 3,U |
| Front grill - R (for headlamp washing) | M535i 80-81 (51 13 1 848 356) | 3,U |
| Battery hold down (for headlamp wash) | Euro E12-M535i (61 21 1 356 491) | 2,U |
| Headlamp wiper blade (2) | Euro E12-M535i (61 63 1 356 734) | 1,U |
| (Bosch 3 398 113 078) | ||
| Headlamp wiper arm (left) | Euro E12-M535i (61 63 1 356 735) | 1,U |
| (Bosch 3 398 150 251) | ||
| Headlamp wiper arm (right) | Euro E12-M535i (61 63 1 356 735) | 1,U |
| (Bosch 3 398 150 251) | ||
| Headlamp wiper motor (left) | Euro E12-M535i (61 63 1 360 131) | 1,U |
| (Bosch 0 390 526 055) | ||
| Headlamp wiper motor (right) | Euro E12-M535i (61 63 1 360 132) | 1,U |
| (Bosch 3 398 526 054) | ||
| Washer bottle (for headlamp washing) | Euro E12-M535i (61 67 1 357 690) | 1,U |
| Twin washer pump (for headlamp washing) | Euro E12-M535i (61 67 1 359 116) | 1,U |
| Headlamp ring - (Lt. For headlamp washing) | Euro E12-M535i (63 12 1 360 614) | 1,U |
| Headlamp ring - (Rt. For headlamp washing) | Euro E12-M535i (63 12 1 360 615) | 1,U |
| Fire extinguisher mntng kit (for Recaro seat) | Euro E12-M535i (63 12 1 360 615) | 1,U |
| Windshield | E28 - All | 1,U |
| Windshield seal | E28 82-85 | 1,S |
| Windshield trim | E28 - All | 1,S |
| Windshield trim - black | E28 - M5 | 1,U |
| Rear window | E28 - All | 1,S |
| PART NAME | DONOR CAR MODELS | NOTES: |
| Rear window seal | E28 - All | 1,S |
| Rear window trim | E28 - All | 1,S |
| Rear window trim - black | E28 - M5 | 1,U |
| Front & rear doors | E28 - All | 3,U |
| Front and rear door glass | E28 - All | 1,S |
| Black outside door handles | E28 - All | 1,U |
| Sunroof seals | E28 - All | 1,S |
| Left and right license plate lamp | E23 - All | 1,S |
| E24 - All | 1,S | |
| E28 - All | 1,S | |
| E30 - All | 1,S | |
| Windshield washer pump (75-76 only) | E21 77 only | 1,S |
| Fuel pump (in tank) | E28 - All except M5 | 1,S |
| Fuel pump (main, except 75-76) | E23 78-87 | 1,S |
| E28 - All | 1,S | |
| E30 - 318i - All | 1,S | |
| E30 - M3 - All | 1,S | |
| E30 325 (i,e) 84-87 | 1,S | |
| Exhaust system (77-78 only) | E24 77-79 | 1,S |
| Exhaust system (79-81 only) | E24 80-81 | 1,S |
| INTERIOR: | ||
| Rear seat | E28 - All | 2,U |
| Front and rear door panels | E28 - All | 3,U |
| Steering wheel | E21-320is | 1,U |
| 140 MPH speedometer | E3 - All | 1,U |
| (for cars w/85 MPH) | E12 - early | 1,U |
| Heater valve (3/77-81 only) | E24 77-82 | 1,S |
| Heater blower motor | E21 - All (verify correct part # if E21 is 80-83 | 1,S |
| E24 - All | 1,S | |
| E28 - All (verify correct part # if E28 is 528e | 1,S | |
| Heater core | E21 77-79 | 1,S |
| E24 77-82 | 1,S | |
| Dome light | E23 78-79 | 1,S |
| E24 78-79 | 1,S | |
| Windshield wiper switch | E24 77-78 | 1,S |
| Turn signal switch (75-78 only) | E24 77-78 | 1,S |
| Turn signal switch (79-81 only) | E24 79-82 | 1,S |
| Headlight switch | E10 - All | 1,S |
| E21 - All except 323i | 1,S | |
| E24 77-82 | 1,S | |
| Fog light switch | E21 - All | 1,S |
| Front window motors 93/75-78 only) | E23 78 only | 1,S |
| Front window motors (79-81 only) | E23 79-83 front & rear | 1,S |
| E28 82-83 | 1,S | |
| Rear window motors (3/75 - 81 only) | E23 78 only-front & rear | 1,S |
| Glove box strap | E21-All | 1,S |
| Manual window crank handle | E10 - All | 1,S |
| PART NAME | DONOR CAR MODELS | NOTES: |
| Manual sunroof crank handle | E21 - All | 1,S |
| E23 78-87 | 1,S | |
| E24 77-87 | 1,S | |
| E28 - All | 1,S | |
| E30 - All | 1,S | |
| Window switches | E23 78-81 | 1,S |
| E24 77-82 | 1,S | |
| Window switches (black bezel) | E23 78-81 | 1,U |
| E24 77-82 | 1,U | |
| Front power lock motors | E23 78-80 | 1,S |
| E24 77-8/80 | 1,S | |
| Trunk lock motor (78-1/80 only) | E23 78-80 | 1,S |
| E24 77-2/80 | 1,S | |
| Trunk lock motor (2/80-81 only) | E24 3/80-8/80 | 1,S |
| Gas door lock motor | E23 78-80 | 1,S |
| E24 77-8/80 | 1,S | |
| Power mirror switch | E21 - All | 1,S |
| (verify left only or left & right) | E23 78-82 | 1,S |
| E24 77-82 | 1,S | |
| E28 82 only | 1,S |