w126 cooling system | 300SE | 300SD | 380SE | 420SE | 500SE

The worlds largest selection of new, used and hard to find Mercedes-Benz 126 standard chassis air conditioning and heating parts. We have auxiliary water pumps, coolant recovery tanks, retrofit kits, coolant tank caps, sensors, cooling fans, fan blades, fan clutches, fan shrouds, oil coolers and lines, radiators and caps, radiator hoses, thermostats transmission coolers and lines, water pumps and a lot more.

Whether you're restoring a classic or keeping your daily driver running and looking its best we have the parts you need.

Cooling System
Auxiliary engine water pump	Fan clutch	Radiator hoses
Coolant by-pass hose	Fan shroud	Radiator mount bushings
Coolant recovery tank	Gaskets and seals	Radiator mount clip kit
Coolant recovery tank hose	Oil cooler	Thermostat
Coolant recovery tank retrofit kit	Oil cooler lines	Thermostat gasket
Coolant recovery tank cap	Radiator	Thermostat housing gasket
Engine coolant temp sensors	Radiator cap	Water pump
Electric cooling fan	Radiator drain plug	Water pump gasket
Fan blade

Auxiliary engine water pump

Bosch (A)

MTC (B)

Auxiliary engine water pump.

300SE,SD,380SE,SEC,420SE,500SE,SEC,560SE,560SEC. 81- 91

Qty. required 1

Coolant recovery tank

Genuine (A)

Meyle (B)

Coolant recovery tank. -

300SD, 380SE,SEC 500SE,SEC, 560SE,SEC.

A Genuine OE

B Meyle

Qty. required 1

Coolant recovery tank

(C)

(D)

Coolant recovery tank. -

Qty. required 1

List 60.00

Coolant recovery tank hose

Coolant recovery tank hose (A,B)

De-aeration hose (C)

Coolant recovery tank hose. From expansion tank to radiator.

300SD, 380SE,SEC., 81- 85

A Original Mercedes - From recovery tank to bottom of radiator

B MTC - From recovery tank to bottom of radiator

De-aeration hose from expansion tank to engine to radiator

C 380SE, SEC 82- 85 OUT OF STOCK

Coolant overflow hose

Coolant overflow hose (D)

Retrofit Kit

Coolant recovery tank retrofit kit (E)

Coolant overflow hose. From expansion tank to radiator.

D 8mm ID x 2.5 m long. Enough to fit most models

Coolant recovery tank retrofit kit.

E Coolant tank retro fit kit

Coolant temp sensors

(A)

(B)

(C)

(D)

Engine coolant temp sensors

300SD ('81-'85), 380SE, SEC, 500SEC, 560SE, SEC

A Sensor 3-pin- (at cylinder head) 3 pin. Replaces green unit

B Sensor - Coolant temp at thermostat and cylinder head

C Sensor - cold temp lock out

D Sensor - Automatic idle control. OUT OF STOCK

Match appearance and connection on existing unit prior to ordering.

Electric cooling fan

(A)

(B)

Electric cooling fan.

A 300SD 85, 380SE,SEC 82-85, 500SEC 84- 85

B 300SD 81- 84

Fan Blade

(A,B)

(C)

Fan blade.

A 380SE, SEC, 500SEC

B 380SE, SEC, 500SEC Used

C 300SD

Fan clutch

(A)

(B)

Fan clutch.

A 300SD URO

B 300SD Meyle

C 380SE,SEC 82- 85, 500SE,SEC 82- 85, 560SE,SEC 85- 91 URO

Fan Shroud

(A)

(B)

Fan shroud.

A 300SD 81- 85

B 380SE,SEC 81- 85, 500SE,SEC 85-91, 560SEC 88-91

Used only

Gaskets and seals

Water pump to engine gasket (A)

Water pump to housing gasket (B)

Gaskets and seals.

A 300SD 81-85 Water pump to housing 5 Hole

B 300SD 81-85 Housing to engine.

Gaskets and seals

Thermostat (C)

Thermostat housing to engine (D)

Gaskets and seals.

C 300SD 81-85 Thermostat gasket

D 300SD 81-85 Thermostat gasket housing to engine

Gaskets and seals

Water pump to block (E)

(F)

Gaskets and seals.

E 380SE,SEC 81-85, 500SE,SEC 85-91, 560 85-91 Water pump to block

F 300SE,SEC 81-85, 500SE,SEC 81-85 Side of water pump

Oil cooler

Oil cooler (A)

Oil cooler lines (C)

Oil cooler.

300SD 81-85, 380SE,SEC, 500SEC, 560SEC

A New

B Used

Oil cooler lines.

300SD 81-85, 380SE,SEC, 500SEC, 560SEC

C Upper New

D Lower New

Radiators

Behr 1981 thru 1985 (A)

Nissens 1981 thru 1985 (B)

Radiator.

300SD 81-85.

A Behr - OUT OF STOCK

B Nissens

Req. 1

Nissens (C)

Behr (D)

Radiator.

380SE,SEC 82-85, 500SEC 85-87, 560SEC 86-91

C Behr - OUT OF STOCK

D Nissens-

Radiator mount clip kit.

Radiator mount clip kit (A)

Radiator mount bushings.

Radiator mount bushings 2 per (B)

Radiator mount clip kit and bushings.

300SD 81-85 380SE,SEC 79-85, 500SEC 81-85, 560SE,SEC 85-91

A Radiator mount clip kit.

B Radiator mount bushings.

Thermostat

Behr (A)

Whaler (B)

Thermostat.

300SD 81-85 80 deg Centigrade

A Behr

B Whaler - OUT OF STOCK

includes seal

Thermostat

75deg (C)

84deg (D)

Thermostat.

380SE,SEC 82-85, 500SE,SEC 85-91

C 75 deg centigrade

D 84 deg centigrade Factory Standard

includes o-ring gasket

Radiator Hoses

Lower 81 thru 85 (A,B)

Upper 81 thru 85 (C,D)

Radiator hose.

300SD

A 81-85 Lower Genuine Mercedes

B 81-85 Lower URO

C 81-85 Upper Genuine Mercedes

D 81-85 Upper URO

Lower (E)

Upper (F)

Radiator hose.

380SE,SEC 82-85, 500SE,SEC 84-85,

E Lower

F Upper

Lower (G,H)

Upper (I,J)

Radiator hose.

560SEC 86-91 See 126L 86-91

G Lower

H Lower

I Upper

J Upper

Coolant by-pass hose

By-pass hose (A)

Radiator drain plug (B)

Coolant by-pass hose.

380SE,SEC 82-85, 500SE,SEC 84-85, 560SEC 86-91

V8 engines

Radiator drain plug.

300SD 81-85

Radiator / Coolant reservoir cap

Coolant reservoir cap 120 deg.(A)

Coolant reservoir cap 140 deg.(B)

Coolant reservoir cap. 120 deg centigrade

300SD 81-85, 380SE,SEC 81-85, 500SE,SEC 84-85

A Genuine Mercedes

B Reutter 1.2bar

Radiator

C 560SE,SEC 85-91 - 1.4 bar

Water Pump

Meyle (A)

Graf (B)

Water pump.

300SD 81-85

A Genuine Mercedes

B Graf HD

Water Pump

(C,D)

Water pump.

380SE,SEC 81-85, 500SE,SEC 84-85 with pulley

C Water Pump Meyle

D Water Pump Graf

Incl. Pulley and gaskets

Water Pump

(E,F)

Water pump.

560SE,SEC 85-91 See 126L 86-91

E Water Pump Laso

F Water Pump Graf

Incl. gaskets