1989 Kubota D850 Injector Pump Part#

Tractor In a Boat

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Kubota D850
Mar 21, 2021
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New Zealand
Hi there,

I need to replace my injection pump. Its from a 1989 Kubota D850. Does anyone here have a part number? Have done lots of googling but there seems to be many variants and want to order the correct one. Also, is there an equivalent newer pump I can use in this engine that will drop straight in?

Thanks
 

North Idaho Wolfman

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L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
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Sandpoint, ID
You want a 15531-51010

And No a newer or different model pump will not work!
 

Tractor In a Boat

New member

Equipment
Kubota D850
Mar 21, 2021
5
0
1
New Zealand
You want a 15531-51010

And No a newer or different model pump will not work!
Thanks Wolfman, that’s what I’ve been looking at but the part number looks to be different to the one stamped on my current broken injector pump. Which has - pfr3kd50 2np4. Is this identical to the 15531-51010 pump?
 

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Tractor In a Boat

New member

Equipment
Kubota D850
Mar 21, 2021
5
0
1
New Zealand
Thanks Wolfman, that’s what I’ve been looking at but the part number looks to be different to the one stamped on my current broken injector pump. Which has - pfr3kd50 2np4. Is this identical to the 15531-51010 pump?
I zoomed in on the photo it looks like there is another number on the pump on the bottom of the tag - 15381- 51011. Is that the part number I need?
 

North Idaho Wolfman

Moderator
Staff member
Lifetime Member

Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
21,679
387
83
Sandpoint, ID
They are the same part:
You just won't find that part number in the "lower price" category because it's a industrial part number.
The injection pumps for D650, D750, D850, D950 are all the same through all of their manufacturing.
The part number just changes as to which line it was used for, like AG, or Industrial.

Finding a pump with that part number will be really hard because of there limited use originally.
The other pump I quoted is more common because it was the AG version of the pump.
They both have the same exact setup, linkage, tolerances, and fuel output.