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Hey guys, I just spoke with Fred with badger diesel in WI about a replacement VE pump for my 1989 cummins 4bt CPL 858. Factory pump was a 0 460 424 045, and he seems sure that a 0 460 424 143 pump will work just fine on the engine. I can't find any info on this pump or it's factory applications. Just curious as to what the differences are between the two pumps, and if anyone knows if there will be anything special required in terms of timing this new pump to the engine compared to timing the factory one?
 

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OK. Here is a complete diagram of both pumps. The one difference I see is the KSB unit. On the old 045 pump it had the wax motor type KSB and on the 143 pump it has the solenoid KSB. The 2 units use different sensors for operation and possibly different wiring. If you don't care to use the KSB the solenoid type does nothing if not connected. Here's the 045 0 460 424 045, Fuel distributor injection pump BOSCH VE series, 0460424045 and here's the 143 0 460 424 143, Fuel distributor injection pump BOSCH VE series, 0460424143 They use 2 different head units so I don't know if they have the same size plungers. Other parts are different too.
 

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You need the model number that is on the ID tag with the part number. It may tell you the info you need. Here's a break down of what those numbers tell you. https://www.dieselduck.info/machine/01 prime movers/2008 Robert Bosch VE-type Injection Pump.pdf Pump 045 has this number VE4/12F1250R301-1 and pump 143 has this number VE4/12F1250R709. So what this tells you is both pumps are VE 4 cylinder models with 12mm plungers, mechanical governors set at 1250 RPM pump speed and have clockwise rotation. The last numbers are just a production number so performance wise I'd expect them to be the same. Main difference is 045 has the wax motor KSB and 143 has the solenoid KSB. If you want it functional you'd need to be sure and have the correct parts for it's hook up. It isn't required for pump operation.
 
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