Revised January 19th, 2012

Radiator, Water Pump, Thermostat and Coolant Tank Parts 

Wasserboxer 1983 to 1991

For Coolant or Heater Hoses/Parts, go to the following links:

Coolant Hoses - Wasserboxer 1983 to 1985

Coolant Hoses - Wasserboxer 1986 to 1991 2WD

Coolant Hoses - Wasserboxer 1986 to 1991 Syncro

Heater Hoses/Parts - Wasserboxer & Diesel 1981 to 1991

Radiator & Fan Motor 

A.  068-121-253E  Radiator, New, WasserBoxer 1983 to 1991  $250.00

C.  171-121-276D  Radiator Mounting Pad/Washer WasserBoxer 1983 to 1991  $.65 pair

D.  251-959-455G  Radiator Fan & Motor, 2 Stage WasserBoxer 1983 to 1985 All Models, 1986 to 1991 w/o Air Conditioning  $199.95

E.  191-905-897  Round Connector Sleeve Housing - Fan Motor Harness Late 1985 to 1991 (From Chassis # 25-F-100001)  $2.96 

F.  191-905-900A  Round Connector Housing - Fan Motor Harness Late 1985 to 1991 (From Chassis # 25-F-100001)  $2.70

Note: When replacing fan motor assembly on 1983 through Early 1985 Wasserboxers, you must also purchase one of each of E. and F. above to convert the connectors.

Radiator Fan Switch

I. 321-959-481D 85  Fan Switch, 3 Terminal, Dual Stage - 85 to 93C (Colder Than Original Temp) Wasserboxer 1983 to 1991  $12.00

I. 251-959-481K  Fan Switch, 3 Terminal, Dual Stage - 76 to 93C Latest Replacement (Even Colder) For Wasserboxer 1983 to 1991  $9.95

-  N 43808.2  Gasket Ring For Fan Switch  $0.50 each

Note: Gasket Ring automatically provided with Replacement Fan Switch.

Coolant Tank Parts

J.  025-121-403  Coolant Recovery/Refill Tank - Wasserboxer 1983 to 1991  $41.00

K.  025-121-482  Cap, Recovery/Refill Tank - WasserBoxer 1983 to 1991  $9.70

L.  068-121-405D  Expansion Tank - WasserBoxer 1983 (To Chassis # 25-D-089112)  NLA

M.  025-121-403A  Expansion Tank - WasserBoxer Late 1983 to 1985 (From Chassis # 25-D-089113)  $53.70

M.  025-121-403B  Expansion Tank - Wasserboxer 1986 to 1991  $90.00

N.  025-121-321  Cap, Expansion Tank - WasserBoxer 1983 (To Chassis # 25-D-089112)  $4.45

O.  025-121-321B  Cap, Expansion Tank - WasserBoxer Late 1983 to 1991 (From Chassis # 25-D-089113)  $8.40

P.  251-919-372  Temp/Level Sensor, Expansion Tank - WasserBoxer 1983 to 1991  $3.70

Q.  N902400.01  Seal Washer, Temp/Level Sensor  $1.75

Note: Seal Washer is provided with Replacement Temp/Level Sensor

T.  N 20281.12  Hose, Expansion Tank to Coolant Recovery/Refill Tank (2 feet required)  $4.50 per foot

Temperature Gauge Switches

R.  049-919-501  Temperature Gauge Sensor Switch - Wasserboxer 1983 to 1985  $15.35

S.  251-919-501  Temperature Gauge Sensor Switch - Wasserboxer 1986 to 1987  $16.90

S.  251-919-501A  Temperature Gauge Sensor Switch - Wasserboxer 1988 to 1991  $7.55

Note: Do not confuse switch "S" with the Thermotime Switch. VW intentionally makes the plastic connectors on these different colors to differentiate these switches. The Thermotime Switch is colored in Blue Plastic and the Temperature Gauge Sensor Switch is colored in Black Plastic. To replace the Thermotime Switch, go to: Fuel Injection Parts - Wasserboxer 1986 to 1991

Water Pump & Thermostat Parts

Note: Picture shown is 1986 to 1991 model. 1983 to 1985 is similar

A.  025-121-010A  Water Pump w/Gaskets - 1.9 1983 to 1985  $89.00

A.  025-121-010C  Water Pump w/Gaskets - 2.1 1986 to 1991  $94.00

B.  035-121-043  O-Ring, Pump to Case - 1983 to 1991  $0.90

C.  N 902844.01  O-Ring, Pump to Pipe - 2.1 1986 to 1991  $1.00

D.  N 901685.02  Gasket, Pump to Pipe - 2.1 1986 to 1991  $1.65

E.  025-121-115  Thermostat Housing, 2WD 1986 to 1991   $90.00

E.  025-121-117E  Thermostat Housing, Syncro 1986 to 1991   $232.00 

F.  025-121-114  Thermostat Cover  1986 to 1991   $65.40

-  025-121-043A  Gasket, Pump to Thermostat Housing - 1.9 1983 to 1985 (Not Shown)  $1.65

G.  025-121-113F  Thermostat - WasserBoxer, 87C 1983 to 1991  $40.00

G.  025-121-113F/80  Thermostat - WasserBoxer, 80C 1983 to 1991  $36.00

H.  N 905685.02  O-Ring, Thermostat Cover/Housing - Wasserboxer 1983 to 1991  $.50

I.  025-121-073H  Hose, Thermostat to Pipe - 2.1 1986 to 1991   $16.35

J.  025-121-081G  Water Pipe, Thermostat to Pump - 2.1 1986 to 1991   $107.00

-  N 10366.4   Bolt, 6x55, Thermostat Cover 1 Required  $1.10

-  N 10220.3   Bolt, 6x30 Thermostat Cover, 1 Required - 1.9 1983 to 1985 (Not Shown)  $.12

K.  N 14703.2   Allen Bolt, 6x18, Thermostat Cover, 4 Required - 2.1 1986 to 1991  $1.20

L.  N12226.2   Flex Washer, Thermostat Cover Bolts, 2 Required 1983 to 1985. 4 Required 1986 to 1991  $.06

M.  N 902781.01  O-Ring. Side of Thermostat Housing  - 2.1 1986 to 1991  $.50

- N  10385.7  Bolt, 8x85, Thermostat Housing to Pump. 2 Required - 1.9 1983 to 1985 (Not Shown)  $2.40

- N  11525.2  Flat Washer, 8mm for 8x85 Bolt   $.10

N.  N 14709.1  Allen Bolt, 8x22, Pump to Pipe, 2 Required - 2.1 1986 to 1991  $1.05

O.  N 12228.2  Flex Washer, 8mm, Water Pump Wasserboxer, 3 Required, Pump Housing to Block Diesel, 4 Required Pipe to Pump, Wasserboxer, 2 Required  $.35

P.  N 11008.2  Hex Nut, 8mm , Pump to Case, Wasserboxer, 3 Required  $.10

Q.  N 90315.1  Allen Bolt with Washer, 8x25, Pump to Pipe, 2 Required - 2.1 1986 to 1991  $1.40  

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