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Optional for the Datsun 1200 was an 8,000 RPM Kanto-Seiki tachometer. It was usually housed in the round-gauge instrument panel to the left of the Speedometer. It may also be placed in the optional floor Console.
Contents |
Overview
USA 1972 Owners manual (see pages 8-9 for Tacho information):
The tachometer is electrically operated and indicates engine speed calibrated in hundreds of revolutions per minute (rpm). two color zones are on its face. For normal driving, your vehicle should be driven in the yellow or non-color sectors.
PB110 
Options
S1 
Ute 
SSS 
B140
Location
Parts Catalog shows GL came with a Clock in the dash, and the GX came with an 8,000 RPM tachometer in the dash, while the clock was moved to the floor Console. Tachometer was optional on DX or GL round dash models.
Dash
PB110
album
Tacho in dash, blank plate in Console
Tacho in dash, Clock in Console
Wiring
See main article: Tachometer Wiring
Part Numbers
24855-H1800 1200 TACHOMETER 8000 RPM [6400 redline]
24855-H2300 1200 TACHOMETER 8000 RPM GX
24855-H1075 1200 FACTORY RACE TACHOMETER Calibrated to 10,000 RPM with adjustable redline needle. Installation same as 24855-H1800
24855-H3100 1972 B110 8000 RPM [Facelift] (Except GX)
24855-H3400 1972 B110 GX 8000 RPM [Facelift]
NO tachometer is listed for Sunny Truck, but only a Clock. Even so it is common to see tachometers installed in 1200 Trucks.
620 Tachometer
The Datsun 620 truck tachometers fits Datsun 1200 and looks very similar. But 620 models have 6500 rpm yellow line for L20B engine (1200 tach has 6400 rpm redline).
1976-1979 620 Tachometer [6500 redline]
full
620 in Japan did not have a factory tachometer option.
1972-1975 early 620 USA
* 24840-B6400 KIT-TACHOMETER OP -0775
* 24054-B6400 ASSY-CABLE,TACHOMETER
1976-1979 late 620 USA * 24855-B8000 ASSY-TACHOMETER OP 0875- * tachometer wiring is built into every 1976-1979 620
The later Tachometer Wiring is different. It is a typical tap connection, instead of the Datsun 1200 'passthru' induction wiring.
Comparison
Early 1200 Tachometer has wiring loop:
Late 1200 Tachometer/620 Tachometer has no wiring loop:
These two types are wired completely different. See Tachometer Wiring.
Facelift
Mechanical Drive
Datsun Competition offered a mechanical tachometer.
See main article: Tach Drive
Aftermarket Tachometers
dash top 
console
on column
under dash 
Silvia tacho
three tachos
silvia
Photo Index
rev counter tacho tach rpm gauge タコメータ