instrument cluster

[STRAN63r]

I snagged a cluster out of one of these at the junkyard today because it had a factory tach and air pressure gauge. Any chance of plugging it in and everything working, other than wiring the tach and running lines for the air? 1988 CHEVROLET D6500 C7D042

[bd]

Welcome to the site from California.  Was the doner rig powered by a Cat or 8.2?  Diesel tachs of that era were generally triggered by a magnetic sensor off the flywheel ring gear, though some received their signal from the alternator stator.  The air gauge will work in anything.

[STRAN63r]

Thank you. It had the cat engine in it. There is an A selection and a B selection on the back of the tach. I guess I will have to see what happens when I hook it up. I would assume wiring would be different on the film on the back, I am afraid to plug it in incase something could get shorted. I will have to do a little more reserch on the bigger trucks. Would be nice if there was a site like this one for the larger trucks with schematics

[Irish_Alley]

i think the wiring would be different

[Captkaos]

What year did it come out of...

[bd]

  ...1988 CHEVROLET D6500 C7D042

[Captkaos]

What year is it going in?  If it's 1978-up, it can be "made" to work easily.  But the connector would need to be repinned.  Is it the 4000 or 5000RPM tach?