Engine (parts, seals, gaskets)
Engine (rebuild parts)
Wheel, Hub & Tire
Wiper & Washer
W126 Standard Chassis Electrical, Switches and Cables

909-762-3948 323-325-4255
W126 Standard Chassis 1981-1991
Models
300SD,SE, 380SE, SEC, 420SE, 500SE, SEC 560SE, SEC.

Parts directory W126
W126 Electrical, Switches and Cables
909-762-3948 mercedesworks.com 323-325-4255

Rear Window Switch (C)


Alternators
Bosch (A)
Bosch (B,C)
Alternators ('81-'85)
300SD
300SD
A Bosch AL117X (65 amp)
380SE,SEC ('82-'85), 500SE,SEC ('82-'85),560SE,SEC ('86-'91)
B Bosch - AL68X (70 amp)
C Bosch - AL69X (80 amp)


Alternator Parts
Voltage Regulator (A,B)
Adjustment Bolt (C)
Alternator Parts
Voltage Regulator
300SD,SE ('81-'85), 380SE,SEC ('82-'85), 500SE,SEC ('82-'85), 560SE,SEC ('86-'91)
A Bosch
B URO
Alternator Adjustment bolt
C New
Alternator Belt
Alternator Belt (A-D)

Alternator Belt
A Belt - 380SE,SEC (10 x 990) (req 1)
B Belt - 300SD (10 x 1000 from 039510) (req 2)
C Belt - 500SEC, 560SEC (10 x 1005) (req 1)
D Belt - 300SD (10 x 1035 up to 039509) (req 2)

Pulley (Single Style)
Pulley (A)
Pulley (Single Style)
A Pulley


Power Antenna
Direct Replacement (A)
Universal Fit (B)
Power Antenna
300SD,SE, 380SE,SEC, 420SE, 500SE,SEC, 560SE,SEC
A Universal replacement
B Universal fit


Power Antenna Parts
Replacement Mast (D)
Antenna Seal (E)
Power Antenna Parts
300SD,SE, 380SE,SEC, 420SE, 500SE,SEC, 560SE,SEC
D Antenna replacement mast
E Antenna seal

Battery Tray
Battery Tray (A,B)
Battery Tray
300SD,SE ('81-'85), 380SE,SEC ('82-'85), 500SE,SEC ('82-'85), 560SE,SEC ('86-'91)
A Battery Tray New
B Battery Tray Used


Cigarette Lighter
Lighter (A,B)
Amplifier/Module Mount (C)
Cigarette Lighter
300SD,SE, 380SE,SEC, 420SE, 500SE,SEC, 560SE,SEC
A Element only as per picture
B Complete unit (Used)
C Mount for module and amplifier


Cruise Control
Switch (A,B)
Actuator (C,D)
Cruise Control
300SD,SE ('81-'85), 380SE,SEC ('82-'85), 500SE,SEC ('82-'85), 560SE,SEC ('86-'91)
A Switch (New)
B Switch (Used)
Switch mounts to upper section of turn indicator combo switch.
C Actuator (New)
D Actuator (Used)


Headlight Bulbs
H4 Bulb w/Replaceable Bulb (A)
Sealed Beam (B)
Headlight Bulbs - Halogen
300SD,SE ('81-'85), 380SE,SEC ('82-'85), 420SE, 500SE,SEC ('84-'85)
A H4 bulb Halogen with replaceable bulb
B Headlight bulb Halogen sealed beam


Headlight Housing
Headlight Housing Front Left
(Driver) (A)
Headlight Housing Front Right (Passenger) (B)
Headlight Housing ('86-'91)
560SE,SEC
A Headlight housing FL side
B Headlight housing FR side
Use replacement bulb below.
Actual items match.
A $ 22.59
List 135.01


Headlight Bulbs
Replacement Bulb (A,B)
Bulb Sealed Beam (C)
Headlight Bulbs - Halogen
300SDL, 350SDL, 380SEL, 420SEL, 500SEL, 560SEC,SEL
A Replacement bulb - 65/45 Wt
B Replacement bulb - 80/100 Wt
C Headlight bulb Halogen sealed beam - 300SD,SE ('81-'85), 380SE,SEC ('82-'85), 420SE, 500SE,SEC ('84-'85)


Headlight Doors/Covers
Front Left (Driver) (A,B)
Front Right (Passenger) (C,D)
Head Light Covers/Doors ('81-'85)
300SD,SE, 380SE, 420SE
A FL side (New) NOT IN STOCK
B FL side (Used)
C FR side (New) NOT IN STOCK
D FR side (Used)
The used head light covers may have slight stress cracks, otherwise they are in near perfect condition.
For more new and used items like this see the Body section.


Headlight Doors/Covers
Front Left (Driver) (A,B)
Front Right (Passenger) (C,D)
Headlight Covers/Doors
380SEC ('82-'85), 500SEC ('84-'85)
A FL side (New) NOT IN STOCK
B FL side (Used)
C FR side (New)
D FR side (Used)
For more new and used items like this see the Body section.
We occasionally have these in our used inventory. Call for availability.


Headlight Housing Assembly
Front Left (Driver) (A)
Front Right (Passenger) (B)
Headlight Housing Assembly
300SD,SE, 380SE, 420SE
A FL side (Used)
B FR side (Used)
Fits short and long 126 chassis headlight opening.
Allows use of either style headlight cover.
For more new and used items like this see the Body section.


Euro Headlight
Front Left (Driver) (A)
Front Right (Passenger) (B)
Euro Headlight Lens
380SEC ('82-'85), 500SEC ('84-'85), 560SEC ('86-'91)
A FL side
B FR side
Complete assembly
Not DOT approved
Off road use only
C $ 6.54
List 9.25
D 5.65
List 7.25


Euro Headlight Lens
Front Left (Driver) (C)
Front Right (Passenger) (D)
Euro Headlight Lens
380SEC ('82-'85), 500SEC ('84-'85), 560SEC ('86-'91)
C FL side
D FR side
Lens only.
Not DOT approved
Off road use only
C $ 6.54
List 9.25
D 5.65
List 7.25


Fog Lights
Front Left (Driver) (A)
Front Right (Passenger) (B)
Fog Lights ('81-'85)
300 SE, 380SE, SEL, 420SE, SEL
A FL side (Used)
B FR side (Used)
All used fog light assemblies are inspected for quality and performance. No lens or assemby damage.


Seat Switches (Non-programmable)
Driver seat (A,B)
Passenger seat (C,D)
Seat Switches (Non-programmable) ('81-85)
300SD,SE
A Driver seat (New)
B Driver seat (Used)
C Passenger seat (New)
D Passenger seat (Used)


Seat Switches (Programmable)
Driver seat (E,F)
Passenger seat (G,H)
Seat switches programmable
380SE,SEC ('82-'85), 500SE,SEC ('82-'85), 560SE,SEC ('86-'91)
E Driver seat (New)
F Driver seat (Used)
G Passenger seat (New)
H Passenger seat (Used)


Dome light switch (E)
Antenna switch (F)
Interior Switches
E Dome interior light switch (Used) - 300SD,SE ('81-'85),
380SE,SEC ('82-'85), 500SE,SEC ('82-'85)
F Antenna switch (Used)


Sun Roof Switch (C)
Sun Roof Switch (D)
Interior Switches
C Sun roof (New) - 300SD,SE ('81-'85), 380SE,SEC ('82-
'85), 500SE,SEC ('82-'85)
D Sun roof (New) - 560SE,SEC ('86-'91)


Interior Switches
Defroster Switch (A)
Hazard Switch (B)
Interior Switches
A Defroster switch (rear window) - 300SD,SE ('81-'85),
380SE,SEC ('82-'85), 500SE,SEC ('82-'85), 560SE,SEC
('86-'91)
B Hazard warning switch


Driver Side Front and
Rear (D,E)
Passenger Side Front and Rear (F,G)
Window Switches
D Driver side (front) - 560SE,SEC ('86-'91)
E Driver side (rear) - 560SE,SEC ('86-'91)
F Passenger side (front)
G Passenger side (rear)
Window Switches
C Window switch rear window (in door) (both sides) -
380SE, SEL ('82-'85), 500SE,SEL ('82-'85)

Window Switches

Driver Side w/Safety Lock
Out (A)
Passenger Side (B)
Window Switches
A Window switch driver side w/safety lockout - 380SE,SEL ('82-'85), 500SE,SEL ('82-'85)
B Passenger side no lockout - 380SE,SEL ('82-'85), 500SE,SEL ('82-'85)


Combo Switch
Turn Signal Combo Switch(A)
Cruise Control Switch (B)
Turn Signal Combo and Cruise Control Switch
Turn signal combo switch
300SD,SE ('81-'85), 380SE,SEC ('82-'85), 500SE,SEC ('82-'85), 560SE,SEC ('86-'91)
A Turn signal combo switch (New)
Cruise control switch
B Cruise control switch


Ignition Switch and Neutral Safety Switch
Ignition Switch at Steering
Lock (A)
Neutral Safety Switch (B)
Ignition Switch and Neutral Safety Switch
A Ignition switch (at steering lock electric portion) - 300SD,
SE ('81-'85), 380SE,SEC ('82-'85), 500SE,SEC ('82-'85),
560SE,SEC ('86-'91)
B Neutral safety switch - 300SD,SE ('81-'85), 380SE,SEC
('82-'85), 560SE,SEC ('86-'91)
C Neutral safety switch - 500SE,SEC ('82-'85)
A $ 165.00 + core
List 337.00
B 123.00 + core
List 249.00
C 165.00 + core
List 316.00

Switches
Brake Light Switch (E)
HVAC Blower Control (F)

Switches
E Brake light switch at pedal - 300SD,SE ('81-'85),
380SE,SEC ('82-'85), 500SE,SEC ('82-'85)
F Brake light switch at pedal - 560SE,SEC ('86-'91)

Switches
Engine Colling Fan Switch (I)
Seat Belt Buzzer Switch (J)

Switches
I -Engine cooling fan switch (at thermostat housing) -
300SD,SE ('81-'85), 380SE,SEC ('82-'85), 500SE,SEC
('82-'85), 560SE,SEC ('86-'91)
J -Seat belt warning buzzer switch - 300SD,SE ('81-'85),
380SE,SEC ('82-'85), 500SE,SEC ('82-'85), 560SE,SEC
('86-'91)


Headlight switch
Headlight switch (A,B)
Headlight switch (C)
Head light switch
A Switch (New) - 300SD,SE ('81-'85), 380SE,SEC ('82-'85),
500SE,SEC ('82-'85)
B Switch (Used) - 300SD,SE ('81-'85), 380SE,SEC ('82-'85),
500SE,SEC ('82-'85)
C Switch (New only) - 560SE,SEC ('86-'91)

Head light switch knob
Headlight switch knob (D)
Headlight Switch Knob
300SD,SE ('81-'85), 380SE,SEC ('82-'85), 500SE,SEC ('82-'85), 560SE,SEC ('86-'91)
D Knob

Switches
A/C Cut Off (A)
A/C Evap Temp Switch (B)

Switches
A A/C cut off switch - 400psi - 300SD,SE ('81-'85),
380SE,SEC ('82-'85), 420SE, 500SE,SEC ('84-'85)
B A/C evap temp switch - 300SD,SE ('81-'85), 380SE,SEC
('82-'85), 420SE, 500SE,SEC ('84-'85)

Switches
Oil pressure switch (C)
A/C High Side Male (D)

Switches
C Oil pressure switch (at filter housing) - 300SD,SE ('81-
'85), 380SE,SEC ('82-'85), 420SE, 500SE,SEC ('84-'85),
560SE,SEC ('86-'91)
D A/C high side pressure switch male (later dual action)
(398,312,28) - 300SD,SE ('81-'85), 380SE,SEC ('82-'85),
420SE, 500SE,SEC ('84-'85), 560SE,SEC ('86-'91)
Relays
Windshield Wiper Motor Relay (E)
Overload protection relay (F)


Relays
E Windshield wiper motor - 300SD,SE ('81-'85), 380SE,SEC
('82-'85), 420SE, 500SE,SEC ('84-'85)
F Overload protection - 380SE,SEC ('82-'85), 420SE,
500SE,SEC ('84-'85), 560SE,SEC ('86-'91)
Relays
Multipurpose (C)
Turn Signal Relay (D)


Relays
C Multi - 300SD,SE ('81-'85), 380SE,SEC ('82-'85), 420SE,
500SE,SEC ('84-'85), 560SE,SEC ('86-'91)
A/C, window. headlight wiper fuel pump, aux fan etc.
D Turn signal - 300SD,SE ('81-'85), 380SE,SEC ('82-'85),
420SE, 500SE,SEC ('84-'85)


Relays
AC Blower Relay (A)
Seat Belt Warning Relay (B)
Relays
300SD,SE ('81-'85), 380SE,SEC ('82-'85), 420SE, 500SE, SEC ('84-'85), 560SE,SEC ('86-'91)
A HVAC relay
B Seat belt warning relay 5 pin type


Starter and Solenoid
Starter (A-C)
Solenoid (D)
Starter and Solenoid
Starter - 300SD ('81-'85)
A 2.0 kW 9 tooth (incl. core 50.00)
B 2.2 kW 9 tooth (incl. core 50.00)
C 2.5 kW 9 tooth (incl. core 50.00)
Solenoid - 300SD,SE ('81-'85), 380SE,SEC ('82-'85), 420SE, 500SE,SEC ('84-'85)
D Solenoid (no core charge)


Starter and Solenoid
Starter (E-G)
Starter (H)
Starter and Solenoid
Starter - 380SE,SEC ('82-'85), 500SE,SEC ('84-'85)
E 1.4kW 9 tooth (core 50)
F - 1.5 kW 9 tooth (core 50)
Starter - 560SE, SEC ('86-'91)
G 1.7kW 10 tooth with gear reduction (core 50)
Solenoid - 380SE,SEC ('82-'85), 500SE,SEC ('84-'85), 560SE,SEC ('86-'91)
H Solenoid (no core)

Fuses
Fuses (10 pack) (A)
Fuse Strip (3 pack) (B,C)



Fuses
300SD,SE, 380SE,SEC, 420SE, 500SE,SEC, 560SE,SEC
A Fuse pack -, 8, 16, 25 amp (10 of each fuse = 30 total)
B Fuse strip - 50 amp (3 pack)
C Fuse strip - 80 amp (3 pack)


Tachometer Sending Unit and Cable
Tach. Impulse Cable (A)
Tachometer sending unit (B,C)
Tachometer Sending Unit and Cable ('81-'85)
300SD, SE (crankshaft position sensor)
A Tach impulse sending cable (from flywheel pick up) NOT IN STOCK
B Tachometer sending unit (New)


Cables
Speedometer Impulse
Sender (A)
Hood Release Cable (B)
Cables ('81-'85)
A Speedometer impulse sender - 300SD, SE
B Hood release cable - 300SDL, 300SD, SE, 380SE
Front Left (Driver) (B)
Front Right (Passenger) (D)

Turn Signal Lens
Front Left (Driver) (A)
Front Right (Passenger) (C)



Turn Signal Lens ('81-'91)
300SD,SE, 380SE,420SE, 500SE, 560SE
A FL turn signal (New) NOT IN STOCK
B FL turn signal (Used)
C FR turn signal (New)
D FR turn signal (Used)
For more new and used items like this see the Body section.
A $ 42.63
B 65.00
C 42.63
D 65.00


Tail Lights
Rear Left (A,B)
Rear Right (C,D)
Tail lights
300SD,SE ('81-'85), 380SE,SEC ('82-'85), 420SE, 500SE,SEC ('84-'85), 560SE,SEC ('86-'91)
A RL Tail light (New) NOT IN STOCK
B RL Tail light (Used)
C RR Tail light (New) NOT IN STOCK
D RR Tail light (Used)
Does not include lamp holder assembly.
For more new and used items like this see the Body section.


Instrument Bulbs
Instrument Bulbs (A)
Wedge Base (B)
Instrument Bulbs
300SD,SE ('81-'85), 380SE,SEC ('82-'85), 420SE, 500SE,
SEC ('84-'85), 560SE,SEC ('86-'91)
A Instrument bulbs for wedge base (10 pack)
B Instrument bulbs (10 pack)
A $ 120.90
List 45.00
B 108.56
List 45.00

Fog Lights
Replacement Bulb (E)
Fog Lights
380SEC ('82-'85), 500SEC ('84-'85), 560SEC ('86-'91)
E Replacement bulb - 12V 55Watt
E $ 4.50
List 7.25
F 9.49
List 11.00


Fog Lights
Front Left (Driver) (C)
Front Right (Passenger) (D)
Fog Lights
380SEC ('82-'85), 500SEC ('84-'85), 560SEC ('86-'91)
C FL side NOT IN STOCK
D FR side NOT IN STOCK
All used fog light assemblies are inspected for quality and performance. No lens or assemby damage.
E $ 4.50
List 7.25
F 9.49
List 11.00


Cruise Control
Amplifier (E)
Amplifier (F)
Cruise Control
E Amplifier - 380SE,SEC ('82-'85), 500SE,SEC ('82-'85)
F Amplifier - 560SE,SEC ('86-'91)
G Module - 300SD ('81-'85)
Match to picture.
Price includes $100.00 core

Module (G)


Dome Lights
Front (A,B)
Front (C,D)

Glove Box/Door/Trunk (E)
Dome Lights
A Front - 300SD,SE ('81-'85), 380SE,SEC ('82-'85), 420SE, 500SE,SEC ('84-'85) New OUT OF STOCK
B Front - 300SD,SE ('81-'85), 380SE,SEC ('82-'85), 420SE, 500SE,SEC ('84-'85) Used
C Front - 560SE,SEC ('86-'91) New
D Front - 560SE,SEC ('86-'91) Used
E Fits glove box, lower door and trunk - 300SD,SE ('81-'85), 380SE,SEC ('82-'85), 420SE, 500SE,SEC ('84-'85), 560SE,SEC ('86-'91)
Window Switches
Interior Switches
Interior Switches
Window Switches