Air Conditioning and Heating

123 & 126 (regular chassis)
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Parts Directory
Body 123
Body 126
Interior 123
Interior 126
Air Conditioning & Heating
Brake System
Cooling System (engine)
Drive Line and Axels
Electrical, Switches and Cables
Engine (parts, seals, gaskets)
Exhaust, Vacuum and EGR
Fuel, Air and Turbo Systems
Ignition
Steering
Suspension
Transmission (automatic)
Transmission (manual)
Wheel, Hub & Tire
Wiper & Washer
 


123 Chassis
1976-1985 Models 230, 240D, 240TD, 280E, 280CE, 300D, 300CD, 300T
 
 
 
126 Chassis - standard length
1981-1985 Models 380SE, 300SD, 300SDL, 350SD, 500SE, 420SE, 300SE, 560SE, 380SEC, 560SEC
 
 
 
Air Conditioning and Heating
A/C Hoses HVAC Valves  
Climate Control Unit Heater Control Temp Regulator  
Compressor Heater control mono repair kit  
Climate control vacuum valve Heater control valve  
Expansion valve Heater Hoses 123 chassis  
Receiver/Dryer Heater Hoses 126 chassis  
Temp Switch Vacuum change over valve  
     
A/C Compressors
Compressor (A)
 
Compressor (B)
Air conditioning compressor
A 240D,TD, 300D, TD, CD.  1976 thru 1981
B 240D,TD, 300D, TD, CD & SD.  1981 thru 1985
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
A New  $ 338.00
   List      510.00
B New  $ 260.68
   List      720.00
123/126 A/C compressor
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A/C Receiver/Dryer
 
 
 
 
Receiver/Dryer
A 1977-1985 240D,TD, 300D, TD, CD.
Behr  Whenever you do any major work to your AC (compressor, hoses etc.) replace the dryer. Includes seals (not shown)
Receiver/Dryer -
B 1981-1985 300SD
URO. Use with lower temp green temp switch.
Qty. required 1. new only.
 
A     $ 36.00
List   179.00
B     $ 38.00
List   179.00
123/126 A/C dryer
Temperature Switch
 
Temperature switch
300D,TD,CD.1978 thru 1985.
2 wire 53 deg Celsius: w/ 6mm threads, early version.
Qty. required 1
New             $ 25.92
List                 69.00
 
 
123 A/C Temp. sensor/switch
 
 
Temperature switch 300SD
Red standard 10mm thread
Green 10mm thread - has lower temp rating. 2 wire: w/ 10mm threads.
Recommended upgrade when using 134A
Qty. required 1
Red     $ 26.31
List        60.00
Green     28.05
List         71.00
126 A/C Temp. sensor/switch
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A/C Expansion Valve

 
A/C Expansion Valve.
300D,TD,CD & SD. 1978 thru 1985.
For R12 and R-134A
Qty. required 1
New      $ 26.07
List          48.50
 
 
123/126 A/C Expansion valve
A/C Climate Control Unit
A/C, Heat Climate Control Unit.
240D,TD, 300D,CD,TD  1981 thru 1985.
Remanufactured or used, both have a 3 month warranty. $50.00 core
Qty. required 1
Reman   393.75     
List        1050.00
 
 
123 Climate control unit 81-85
 
A/C, Heat Climate Control Unit.
300SD, 300SEC.1981 thru 1985
Remanufactured or used, both have a 3 month warranty. Includes $50.00 core charge.
Qty. required 1
Reman $ 298.00
List       1050.00
 
 
126 Climate control unit 81-85
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Heater Control Temp Regulator
Heater Control Unit Temperature Regulator.
A 240D,TD, 300D,TD,CD 1981 thru 1985  incl $10.00 core
B 300SD 1981 thru 1985 incl $30.00 core
Temperature regulator for climate control unit.
Qty. required 1
A     $ 127.01
List     135.00
B        248.23
List     237.00
123/126 Temp regulator 81-85
HVAC Valves
 
Climate Control vacuum power change over valve.
300D.TD,CD &SD. 1981 thru 1985.
(HVAC controls under dash behind climate control unit)
Qty. required 5.
New       $ 53.31
List           57.00
 
 
123/126 Vac CO valve 81-85
 
Climate Control Vacuum Valve.
240D, 300D,TD,CD & SD. 1978 thru 1985.
 2/1 way, yellow (in engine compartment)
Qty, required 1
New $ 9.45
List     9.81
 
 
123/126 Vac valve 78-85
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Heater control  mono valve repair kit.
240D, 300D,TD,CD. 1981 thru 1985.
For mono electromagnetic water valve.
Qty. required 1
New      $  50.12
List         129.00
 
 
123/126 mono repair kit 81-85
 
Heater control valve.  
A 240D, 300D,TD,CD. 1981 thru 1985.
B 300SD 1981 thru 1985
 
A     $ 54.49
List     71.00
B        58.69
List     59.00
123/126 Control valve 81-85
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Heater control valve solenoid.
A 240D,TD,  300D,TD,CD. 1981 thru 1985.
B 300SD 1981 thru 1985
 
A      $ 257.41
List      262.00
B         258.24
List      236.00
123/126 Solenoid 81-85
A/C Hoses
Compressor to condenser. (A) in stock
 
Receiver/dryer to condenser. (B) in stock
A/C Hoses - 300D,TD,CD. 1981 thru1985
A Compressor to condenser.
B Receiver/dryer to condenser
 
A -   $ 39.94
List     63.00
B -   $ 34.03
List     36.50
123 A/C Hose 81-85
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Refrigerant suction at top on left side of engine: not at compressor. (C) in stock
federal cars for A/C comp with flange connection under engine. (D) not in stock
A/C Hoses
Refrigerant suction hose
300D,TD,CD.1981 thru1985
 
C -    $ 116.87
List      163.00
D -     $ 371.49
Used   150.00
List      426.00
123 A/C Hose 81-85
 
A/C Hoses
Condenser to drier. (E) not in stock
 
 
 
A/C Hoses - 300SD. 1981 thru1985
E Condenser to drier
 
 
E -   $ 50.28
List     63.00
 
 
126 A/C Hose 81-85
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Heater Hoses 123 Chassis
Aux water pump to water pump housing at engine. (A) in stock
 
Engine to feed pipe (B)
in stock
Heater hoses
300D,TD,CD. 1981 thru 1985
 
Match your pipe shape to pictures shown.
 
A - $  4.25
B -     7.00
C -     3.25
D -   28.50
E -     4.25
123 Heater Hose 81-85
Feed pipe from mono valve to firewall left
 side (C) not in stock
Feed pipe to aux water pump (D)
not in stock
From return pipe toe aux water pump (E)
not in stock
Mono valve to feed pipe at fire wall (F)
not in stock
Mono valve to return pipe from aux water
 pump (G) not in stock
Heater hoses
300D,TD,CD. 1981 thru 1985
 
Match your pipe shape to pictures shown.
F -     5.50
G -     3.00
H -     4.25
I -       3.25
123 Heater Hose 81-85
From feed pipe at fire wall to heater core
 center (H) not in stock
Feed pipe at fire wall to heater core
right side (I)  not in stock
 
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Heater Hoses 126 Chassis
Mono valve to feed pipe at fire wall (A)
not in stock
 
 
Mono valve to return pipe from aux water
 pump (B) not in stock
Heater hoses
300SD 1981 thru 1985
 
Match your pipe shape to pictures shown.
A -  $ 5.50
B -    4.50
 
126 Heater Hose 81-85
 
 
Mono valve to feed pipe at fire wall (C)
not in stock
 
Mono valve to return pipe from aux water
 pump (D) not in stock
Heater hoses
300SD 1981 thru 1985
 
Match your pipe shape to pictures shown.
C -  $ 3.50
D -   44.50
 
126 Heater Hose 81-85
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Mono valve to feed pipe at fire wall (E)
not in stock
 
Mono valve to return pipe from aux water
 pump (F) not in stock
Heater hoses
300SD 1981 thru 1985
 
Match your pipe shape to pictures shown.
E -     5.50
F -     3.00
 
126 Heater Hose 81-85