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Nissan calls the housing for the thermostat the "Water Outlet".

1 Overview
2 A-engine Variations
3 Head Mating Surface
4 Housing Part Numbers
5 Photo Index

Overview

11062-18000 GASKET-WATER OUTLET

11060-G0300 OUTLET-WATER 
* B110 JDM, USA

11060-H7000 OUTLET-WATER B110 USA MANUAL from 0373

* Has boss for temp switch
* 22120-U2001 ASSY-SWITCH WATER TEMP from 0373
  same switch used by:
  * L16-powered 620 USA for EGR
  * 1973 510

The purpose of the late 1973 water temp switch is unknown, but it might replace the ambient air temp switch of the TCVAS system. In other Datsun models it was used to disable EGR, including PB110 L14 engine (in thermostat housing) and EGI A14E engine (in EGR adapter on intake manifold). On the 1974 L18-powered 620, it was activated at 120 degrees, so it is the wrong temp to be used to control a radiator fan.

A-engine Variations

There are a number of different type for A-series engines. The most important difference is whether it fits over the Air Passage in some cylinders heads.

* 2-bolt Type -- as used by early engines, and some late engines
* 3-bolt Type -- newer engines
* 4-bolt Type -- newer engines, notably used Air Passage

It further breaks down:

* 2-bolt Type -- as used by Datsun 1200
  * B10/B110 Type, outlet points 180 degrees
  * Late B110 USA -- with boss for thermo switch
  * B210/B310 Type-Outlet points 225 degrees 
* 3-bolt Type
  * with accessory mounting bosses
* 4-bolt Type -- as used by some newer engines
  * with accessory mounting bosses and Air fitting
  * with accessory mounting bosses (forward) and Air fitting

2-bolt Type Thermostat housings attaches radiator hose at:

* B10/B110: 9:00 o'clock (180 degrees)
  
* B210/B310: 10:30 o'clock (225 degrees) to clear alternator belt

of high-mounted alternator

Head Mating Surface

Starting with the 1974 redesign, all A-series cylinder heads feature alternator on right side of engine. This necessatated adding a bolt hole to the front of the head next to the water outlet. This means the water outlet was raised up so as to not cover the bolt. This in turn means the radiator hose location is different, even though the first yeat B210 radiator is otherwise nearly identical to the B110.

Head Mating Surface: 1974-up engine w/o Air passage

Head Mating Surface: 1974-up engine with Air passage

Adapter

Housing Part Numbers

NOTES:

CAL = California
CAN = Canada
FED = USA, except California
GFU = 5-speed Round-port A14 engine
JDM = Japan Domestic Market
Gasket is also called "WASHER-JOINT WATER OUTLET"

The 4-bolt gasket works on a 2-bolt housing.

2-bolt Type

The 2-bolt type is used by B10 and B110. It is also used by some B210/B310 engines that do not have an Air passage in the cylinder head.

11062-18000 GASKET-WATER OUTLET

7:30 Outlet

It points straight to the side when installed.

11060-G0300 OUTLET-WATER B110
* C20 JDM "Sunny Cab" A10

Aftermarket
KILKENNY CASTINGS WO27
* suits 11060-G0300

11060-H7000 OUTLET-WATER B110 MANUAL from 0373 USA
* Has boss for temp switch:
  22120-U2001 ASSY-SWITCH WATER TEMP from 0373

B110 housing and original fittings

9:00 Outlet

B10 & B210 - outlet points slightly up when installed

11060-18000 OUTLET-WATER B10
 full

11062-H7201 GASKET-WATER OUTLET
* 11060-H5000 OUTLET-WATER B210 A13 USA 1974, A12 JDM early
* 11060-H5000 OUTLET-WATER B310 A12,A13,A14,A15 JDM 8011-
* 11060-H5000 OUTLET-WATER B120 A12 -8910
* 11060-H5000 OUTLET-WATER B310 A12A CAL from 0879
* 11060-H5000 B310 JDM
  -8109 VAN
  7901-8010 A12S.S,K+14.V
  8011- ALL
Aftermarket
KILKENNY CASTINGS WO27A

You can see how on newer engines, the alternator bracket bolts next to the outlet. This requires the outlet at 45 degrees up so the bolt is uncovered.

Late B120

11060-G2500 OUTLET-WATER B120 A12 8910-
* 11062-H7201 GASKET-WATER OUTLET -9202
* 11062-18000 GASKET-WATER OUTLET 9202-

FWD

11060-M0100 E10 Cherry 2-bolt with accessories boss A10,A12

3-bolt Type

11062-M3001 GASKET-WATER OUTLET

* can use 4-bolt gasket

The 3-bolt water outlet was used in newer engines that do not have an air port in the front of the cylinder head -- and that do not have the alternator bracket bolted to the front of the head. In this case, the outlet can exit more to the side, even covering the 4th bolt hole.

11060-M3001 OUTLET-WATER
* B310 JDM -7812 A12 S,K; A14 V
* B310 FED A14,A15
* B310 AUS A14 Wagon
11060-M3010
* N10 JDM A12,A14
Aftermarket:
KILKENNY CASTINGS WO92

3-bolt type fastening housing to head. With two accessories bosses pointing up

4-bolt Type

11062-H7201 GASKET-WATER OUTLET

All engines with Air passage in the cylinder head require a 4-bolt housing and gasket. Some newer engines without Air system also use the 4-bolt kit.

4-bolt

Smog Pump Type
bosses up

11060-H7201 OUTLET-WATER B210 A14 USA
11060-H7400 OUTLET-WATER 
* B210 A14 FED GFU from 1276
* B210 A12 JDM late, A14 
* F10 A14 USA
* A10 JDM A14S.S,K -7803

1977 B210 Coupe A14 5-speed GFU
H74

Air Induction Type - 1 Boss Forward, 1 boss up

11060-H9100 OUTLET-WATER B310 A14,A15 CAL,CAN
* 11062-H7201 GASKET-WATER OUTLET  B310 A14,A15 CAL,CAN
11060-H9100 OUTLET-WATER B310 A12A from 1278
* 11062-H7201 GASKET-WATER OUTLET A12A CAN from 1278
* 11062-M3001 GASKET-WATER OUTLET A12A FED from 0879