Water pump

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Datsun 1200 used a traditional vane-type water pump, driven by the fan belt. The same pump was used from 1966 Datsun B10 to some 1982 Datsun B310. However, air conditioning-equipped models used a different hi-performance pump, and some models used a short-shaft pump.

Also see Fans

There are two basic water pumps for A-series engines:

• Datsun 1200 is long shaft, large pulley (spins slower)
• Newer is short shaft with spacer, small pully (spins faster)

  

• Note that the pulley bolts are wider apart in the newer pump
• Newer pump has studs for the spacer

  

• Some aftermarkets pumps have a sheet-metal impeller, smaller but more agressive
• Genuine Hitachi and Atsugi pumps (both A12 and A15) have a cast iron impeller

Part Numbers

http://www.rockauto.com

• Beck/Arnley 1310366 $34 http://partsamerica.com

  

Gasket

• 21014-18000 GASKET-WATER PUMP (note B10 part number)
• 21014-H1000,21014-H1010 GASKET-WATER PUMP through 1982 model year (A12, A13, A14, A15, A12A)

Pump

• 21010-18003 ASSY-PUMP WATER
• 21010-18026 ASSY-PUMP WATER WITH GASKET (original PN)
• 21010-18027 ASSY-PUMP WATER WITH GASKET 0870-0871
• 21010-H1025 ASSY-PUMP WATER WITH GASKET 0971-1072 (1972 model year)
• 21010-H5025 ASSY-PUMP WATER WITH GASKET 1172- (through 1982 model years)

OPTIONAL Aircon A14 From 0876

• 21010-H7225 ASSY-PUMP WATER WITH GASKET From 0876 Optional A14
• 21060-H5010 FAN-COOLING FOR AIR CONDITIONER
• 21051-H7200 PULLEY-FAN AND WATER PUMP FOR AIR COND