Revision as of 00:51, 8 January 2013

The stock radiator is adequate, but can be marginal on the hottest summer days over 100F or 33C. Upgrades include using larger B210 or B310 unites.

1 Overview
2 B210 & B310 Radiator
- 2.1 ID
3 Pulsar Radiators
4 Brand new aluminum radiator, $43 USD

Overview

Bolt-in B210 radiator or B310 , just a bit bigger makes a lot of difference in cooling
B210 a/c radiator, bigger yet. Just need some simple brackets

The 1200 core support can handle radiator up to approximately 445x695 mm

The 1200 bolt spacing is:
* 250 mm (9.84 inch) vertical - same as B210
* 370 mm (14.57 inch) horizontal

B210 & B310 Radiator

All B210 and B310 radiators are same height as 1200 radiators. Plus they come with shrouds as standard equipment.

Core
B110 330 x 344 x 32 mm
B210 330 x 344 x 32 mm 
B210 330 x 462 x 33 mm with AC
B310 330 x 462 x 33 mm std (non-AC)

Width

1973 B110 ~14.5" bolt spacing width (manual transmission)
1975 B210 USA 19.8" bolt spacing width
1976 B210 USA 17.1" bolt spacing width (manual transmission)
1979 B310 USA 17-3/8" bolt spacing width (A15 with 4-speed)
1980 B310 USA 20-1/8" bolt spacing width (A15 with 5-speed)
1978 A10 USA 23" (585 mm) L20B with 5-speed and A/C

B210 1974 is same size as B110 (1.7 liter), but B210 with A14 radiators are wider. There is one size wider radiator, in AUTO (with AT cooler lines, 2.5 liter)) and two manual part numbers (2.7 liter, which vary slightly).

B210 USA CATALOG
* 21400-H5201 ASSY-RADIATOR 1974 USA
* 21500-H7210 ASSY-RADIATOR FP2.5 WITH OILCOOLER AUTO 0974-
* 21400-H7210 ASSY-RADIATOR FP2.7 MANUAL
* 21400-H7400 ASSY-RADIATOR FP2.7 MANUAL
The last three are not directly interchangeable but are the same width.

Radiator 21400-H5201 -0874 (AUTO & MANUAL ~1.5/1.7 liter)
* 21475-H5000 SHROUD-RADIATOR UPPER AUTO -0974
* 21476-H5000 SHROUD-RADIATOR LOWER AUTO -0874
Same size as B110 radiator?

Radiator 21500-H7210 (AUTO 2.5 liter) 0974-
* 21475-H7210 SHROUD-RADIATOR UPPER 0974-
* 21475-H7212 SHROUD-RADIATOR UPPER (PP) or 21475-H7211 (NP) AUTO(CAN) 0876-
* 21476-H7212 SHROUD-RADIATOR LOWER (PP) or 21476-H7211 (NP) 0876-
** replaces 21476-H7210 SHROUD-RADIATOR LOWER 0974-0775

Radiator 21400-H7210 (MANUAL 2.7 liter) MANUAL 0974-0775, MANUAL USA 0876-
* 21475-H7212 SHROUD-RADIATOR UPPER (PP) or 21475-H7211 (NP) 0875-0776
* 21476-H7212 SHROUD-RADIATOR LOWER (PP) or 21476-H7211 (NP) USA 0876-

Radiator 21400-H7400 (MANUAL 2.7 liter) USA 0875-0776 CANADA 0875-
* 21475-H7500 SHROUD-RADIATOR,BOTH MANUAL(CAN) 0875-
* 21475-H7500 SHROUD-RADIATOR,BOTH MANUAL(USA) 0875-0776
* 21475-H7212 SHROUD-RADIATOR UPPER (PP) or 21475-H7211 (NP) 0875-0776
* 21475-H7212 SHROUD-RADIATOR UPPER (PP) or 21475-H7211 (NP) USA 0876-

B210 JDM CATALOG
Small width, 1973-1975, same as B110:
* 21400-H5201 ASSY-RADIATOR A12 AUTO
* 21400-H5200 ASSY-RADIATOR A12 MANUAL
Unknown Width:
* 21400-H5010 ASSY-RADIATOR VAN A12 1975-1977
Larger width, 1975-1977:
* 21500-H7210 ASSY-RADIATOR A14S AUTO
* 21400-H7400 ASSY-RADIATOR A14S MANUAL, A12 SEDAN & COUPE
* 21400-H7210 ASSY-RADIATOR A14T
Only the A14 models were fitted with a shroud.

B310 JDM CATALOG
All came with shroud, except A12/A13 w/o aircon.
* 21400-H5010 RADIATOR ASSY VAN A12
Larger width:
* 21500-H7400 RADIATOR ASSY
* 21500-W5001 RADIATOR ASSY A15S
* 21500-H9200 RADIATOR ASSY A14E
* 21500-H9205 RADIATOR ASSY A15E
* 21400-H9415 RADIATOR ASSY VAN A12 F/OKINAWA
* 21400-H7415 RADIATOR ASSY F/OKINAWA
* 21500-W5015 RADIATOR ASSY A15S F/OKINAWA
* 21500-H9215 RADIATOR ASSY A14E F/OKINAWA
* 21500-H9216 RADIATOR ASSY A15E F/OKINAWA

Shroud
* 21475-H8500 SHROUD ASSY
* 21475-H8800 SHROUD ASSY VAN A12 F/AIRCON
* 21475-H8900 SHROUD ASSY AT

B310 USA CATALOG
AUTOMATIC
* 21500-H9100 RADIATOR ASSY W/OIL COOLER AUTO(SEDAN,COUPE) -0979
* 21500-H9700 RADIATOR ASSY W/OIL COOLER AUTO(WAGON) -0979
* 21500-H9701 RADIATOR ASSY W/OIL COOLER AUTO 1079- replaced H9700 MANUAL RADIATORS
Width: 17-3/8" bolt spacing:
* 21400-H9100 RADIATOR ASSY MANUAL -0779
* 21400-H9100 RADIATOR ASSY A14(MAN) 0879-0979
* 21400-H9100 RADIATOR ASSY A12(CAN) 0879-0979
* 21400-H9110 RADIATOR ASSY A12(USA) 0879-0979
* 21400-H9111 RADIATOR ASSY A12 1079- 2 21400-H9110
* 21400-H9101 RADIATOR ASSY A14(MANUAL) 1079-0780 2 21400-H9100
Width unknown:
* 21400-H9900 RADIATOR ASSY A14(HL-RSFU,RFN) 0880-
Width: 20-1/8" bolt spacing:
* 21400-H9120 RADIATOR ASSY A15(MANUAL) 1279-

Width: 17-3/8" bolt spacing:
Radiator 21400-H9100, 21400-H9101
Radiator 21400-H9110, 21400-H9111
* 21475-H8500 SHROUD-RADIATOR MANUAL(A12,A14)

Width unknown:
Radiator 21400-H9900
* 21590-H9900 MOTOR ASSY-W/SHROUD MANUAL(RSFU,RFN) 0980-
AUTO Radiator 21500-H9100

Width: 20-1/8" bolt spacing:
Radiator 21400-H9120
AUTO Radiator 21500-H9700, 21500-H9701
* 21475-H8600 SHROUD-RADIATOR AUTO(A15) MANUAL(A15) superceeded 21475-H8900

ID

BOLT PATTERN
17.1" wide by 9.8" high
* 1976 B210 USA M/T

19.8" wide by 9.8" high
* 1976 B210 USA A/T
* 1975 B210 USA

Pulsar Radiators

Early Pulsar radiators do not mount flat.

N12 Pulsar 1.3 core size: 330 X 478 X 33 mm
N12 Pulsar NX 1.6 core size: 329 x 478 29 mm

The later Pulsar radiators are monstrously large, but good for a CA-series engine.

N15 Core size 320 X 648

[url=http://datsun1200.com/modules/newbb/viewtopic.php?post_id=427018#forumpost427018]How to install Pulsar N14/15 Radiator[/url]

Brand new aluminum radiator, $43 USD

The hot tip for modified or competition is a Brand new aluminum radiator, $43 USD: 1986 Volkswagen Golf radiator, narrow version that is 24" wide. The AC models have a wider radiator.

Pluses