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Old 09-03-2021, 09:32 AM   #1
Whitenightmare
 
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What injection pump is this?

Not sure if the pic worked but it he tag says Bosch 903 ( I think) it’s on a 12v that I’m considering buying but don’t want to get stuck with a boat anchor
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Old 09-03-2021, 09:55 AM   #2
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@Snedge will know.

PM him.

If you end up with a boat anchor, he can also rework it for you.
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Old 09-03-2021, 09:57 AM   #3
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It's an Bosch A pump, not a P pump. Must be a generator unit or something ?

According to Cummins it's used on the C series engine. 207 whopping horsepower at 2100 RPM

Last edited by Snedge; 09-03-2021 at 10:02 AM.
 
Old 09-03-2021, 10:01 AM   #4
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It’s on fb marketplace. Dude says it was in a jockey truck but it looks like it has the trans adapter for a generator or something. Anything other than a pump I would need to change to put it in a truck project?
 
Old 09-03-2021, 10:03 AM   #5
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Quote:
Originally Posted by Whitenightmare View Post
It’s on fb marketplace. Dude says it was in a jockey truck but it looks like it has the trans adapter for a generator or something. Anything other than a pump I would need to change to put it in a truck project?
If you can get the engine serial number I can tell you much more.
 
Old 09-03-2021, 10:04 AM   #6
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Also Snedge! I owe ya one for your advice on nv4500 bell housings when I trans swapped my 24v. You were totally right that they’re all the same.
 
Old 09-03-2021, 10:05 AM   #7
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Also Snedge! I owe ya one for your advice on nv4500 bell housings when I trans swapped my 24v. You were totally right that they’re all the same.
I get that all the time !!
 
Old 09-03-2021, 10:07 AM   #8
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No serial number but here’s a better picture
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Old 09-03-2021, 10:08 AM   #9
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It’s only an hour from me in pa. Think I’m gonna go check it out this weekend
 
Old 09-03-2021, 10:27 AM   #10
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I crossed the Bosch number you provided to a Cummins part #.
Every application with that pump said C series (8.3) It does appear to be a B-Series though.
If you look at it, get the serial number from the tag on the gear housing and hit me up through PM. We can hammer it out easier that way.
 
Old 09-03-2021, 12:16 PM   #11
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Am I remembering correctly that something about the C-series pumps didn't work on the B's? Seems like it had to do with the oil drain.
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Old 09-03-2021, 12:38 PM   #12
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Wonder if that was used for an irrigation pump. The 8.3L I bought was. Dunno.
 
Old 09-03-2021, 06:38 PM   #13
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Looks like the same pump as our 4440. They can be made to fuel well. One turn on the screw and some minor tuning made that tractor run very well.
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Old 09-03-2021, 07:42 PM   #14
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That pump has 9.5mm plungers, that would be slow. I would call a pump shop if you want performance out of it.
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Old 09-03-2021, 09:00 PM   #15
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Be a good core charge.
 
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