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Parts Directory 126 Chassis
Body
Interior
Air Conditioning & Heating
Brake System
Cooling System (engine)
Drive Line and Axles
Electrical, Switches and Cables
Engine (parts, seals, gaskets)
Exhaust, Vacuum and EGR
Fuel, Air and Turbo Systems
Ignition
Steering
Suspension
Transmission (automatic)
Wheel, Hub & Tire
Wiper & Washer
 


 

Mercedes W126 420SEL
126 Long Chassis 1981-1991
Models
300SDL,SEL, 350SDL, 380SEL,420SEL, 500SEL, 560SEL.
 

The worlds largest selection of new, used and reconditioned Mercedes-Benz 126 long chassis air conditioning and heating parts. We have hoses, climate control units, compressors, vacuum valves, expansion valves, receiver/dryer units, temperature switches, HVAC valves, heater control regulators, mono valve repair kits, control valves, heater hoses vacuum change over valves, 3/2 valves. Whether you're restoring a classic or  keeping your daily driver running and looking its best we have the parts you need.

 
Air Conditioning and Heating
A/C Hoses HVAC Valves Idler pulley & bolt
Climate Control Unit Heater Control Temp Regulator  
A/C Compressors Heater control mono valve repair kit  
Compressor speed sensor Heater control valve solenoid  
Climate control vacuum valve Heater control valve  
Expansion valve Heater core  
A/C Receiver/Dryer Heater Hoses 126 chassis  
Temp Switch Vacuum change over valve  
Temp sensors    

A/C Compressors
mercedes auto works
Compressor (A)
 
mercedes auto works
Compressor (B)
Air conditioning compressor
300SDL,380SEL,500SEL
B 420SEL,560SEL
 
Must be installed as per manufacturers specs and proper procedure to maintain warranty. Take the vehicle to a certified shop and have the air conditioning system depressurized. Specify year and model when ordering. 3 mo warranty.
Qty. required 1
W126L A/C Compressor
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Compressor Speed sensor
mercedes auto works
(A)
A/C Receiver/Dryer
mercedes auto works
(B)
 
A/C Compressor speed sensor
420SEL, 560SEL 1986 - 1991
At rear of compressor C above. 420 and 560 only
Receiver/Dryer -
300SDL,SEL, 350SDL, 380SEL,420SEL, 500SEL, 560SEL.1981-1991
Whenever you do any major work to your AC (compressor, hoses etc.) replace the dryer. The moisture in the old dryer will hamper the operation of your new parts and you will have wasted your time.
Qty. required 1. new only.
 
W126L HVAC Speed Sensor
W126L HVAC Receiver/Dryer

 
Idler Pulley
mercedes auto works
(A)
 
 
mercedes auto works
 (B)
Idler pulley
300SDL,SEL, 350SDL, 380SEL,420SEL, 500SEL, 560SEL.1981-199
A Idler pulley
Idler pulley bolt
 
W126L HVAC Idler Pulley & Bolt
 
Temperature Switch
mercedes auto works
10mm Red (A)
 
mercedes auto works
6mm (B)
Temperature switch
10mm thread red standard . 300SDL,SEL, 350SDL, 380SEL,420SEL, 500SEL, 560SEL. 1986 - 1991
6mm thread 53 deg Celsius, early version 380SE, 500SEL 1981 - 1985 
Qty. required 1
W126L HVAC Temp Switch

Sensors
mercedes auto works
Ambient air sensor (A)
 
mercedes auto works
Cabin air sensor (B)
 
Air temperature sensors
A Ambient Outside air sensor - 420SEL, 560SEL
B Cabin air sensor - 420SEL, 560SEL
 
Qty. required 1
W126L HVAC Air Temp Sensors
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A/C Expansion Valve
mercedes auto works
(A)
 
 
 ()
A/C Expansion Valve.
Expansion valve - 300SDL,SEL, 350SDL, 380SEL, 420SEL, 500SEL, 560SEL. 1981-1991
For R12 and R-134A
Qty. required 1
W126L HVAC Expansion Valve
 
Heater Core
mercedes auto works
(A)
 
0008307515 Genuine Mercedes Heater Pipe; Heater Core Pipe Set
 (B)
Heater core
300SDL, 380SEL, 420SEL, 500SEL, 560SEL. 1981-1991
A Heater core
B Heater core pipe set - Recommended when replacing heater core
Qty. required 1ea
W126L HVAC Heater Core
W126L HVAC Heater Core Pipe Set

A/C Climate Control Unit
mercedes auto works
(A)
 
mercedes auto works
(B)
A/C, Heat Climate Control Unit.
A 380SEL, 500SEL
B 420SEL, 560SEL
Remanufactured. 3mo warranty. Includes $50.00 core charge.
Qty. required 1
W126L HVAC Climate Control Unit
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Heater Control Temp Regulator
mercedes auto works
 (A)
 
 
 (B)
Heater Control Unit Temperature Regulator.
A
B
Temperature regulator for climate control unit.
Qty. required 1
A     $ 127.01
List     135.00
B        248.23
List     237.00
 
 
HVAC Valves
mercedes auto works
 (A)
 
mercedes auto works
 (B)
Climate Control vacuum power change over valve.
HVAC control valves under dash behind climate control unit
A  - 380SEL, 500SEL - Qty. required 5.
B  - 420SEL, 560SEL - Qty. required 1.
 
W126L HVAC Vac Power Changeover Valves
 
Climate control vacuum valve
mercedes auto works
 (A)
 
 
 
Climate Control Vacuum Valve.
300SDL, 380SEL, 420SEL, 500SEL, 560SEL. 1981-1991
2/1 way, yellow (in engine compartment)
Qty, required 1
W126L Climate Control Vacuum Valve
 
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Mono Valve repair kit
mercedes auto works
 (A)
 
 
 ()
 
Heater control  mono valve repair kit.
300SDL, 380SEL, 420SEL, 500SEL, 560SEL. 1981-1991
For mono electromagnetic water valve.
Qty. required 1
A  $  22.59
List 135.01
 
 
126 Mono valve rep kit
 
 
 
mercedes auto works
 (A)
 
Heater control valve.  
A
 
 
A     $ 
List    
B       
List    
Add to Cart
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Heater control valve solenoid
mercedes auto works
 (A)
 
(B,C)
Heater control valve solenoid.
300SDL, 380SEL, 420SEL, 500SEL, 560SEL. 1981-1991
A Mono Valve single pipe Reman 90day warr
B Mono Valve dual pipe New Genuine Mercedes
C Mono Valve dual pipe Reman 90day warr
W126L HVAC Heater Control Mono Valve
 
A/C Hoses
mercedes auto works
(A)
 
mercedes auto works
(B)
A/C Hoses - 420SEL, 560SEL 86 - 91
A Receiver to dryer
B Refrigerant suction hose at compressor.
 
W126L HVAC A/C Hoses
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A/C Hoses
mercedes auto works
Condenser to drier. (C)
 
 
 
A/C Hoses - 380SEL, 500SEL
C Condenser to dryer
 
 
W126L HVAC A/C Hoses

 


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Heater hoses  
mercedes auto works
  (A)
 
 
mercedes auto works
 (B)
Heater hoses
A Between return line to engine branch type - 380SEL, 500SEL, 560SEL 1981 thru 1991
B From recirculation  pump to engine - 380SEL, 420SEL, 500SEL 1981 thru 1991
Match your pipe shape to pictures shown.
W126L HVAC Heater Hoses

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Heater Hoses
mercedes auto works
(C)
 
 
mercedes auto works
 (D)
Heater hoses
380SEL, 420SEL, 500SEL, 560SEL 1981 thru 1991
C Heater core to mono valve - 380SEL, 420SEL, 500SEL, 560SEL
D Heater core to mono valve - 380SEL, 420SEL, 500SEL, 560SEL Genuine Mercedes
Match your pipe shape to pictures shown.
W126L HVAC Heater Hoses

 
 
mercedes auto works
(E)
 
 
mercedes auto works
 (F)
Heater hoses
380SEL, 420SEL, 500SEL, 560SEL 1981 thru 1991
E Windshield heating mono Valve to thermo valve
From recirculation  pump to right side of engine - 380SEL, 420SEL, 500SEL 1981 thru 1991
Match your pipe shape to pictures shown.
W126L HVAC Heater Hoses
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