Anyone changed the fuel pump filter on NHC250?

[goldneagle]

Wow!! There is always a catch. Is the shipping the same on a larger quantity? I know I'm waiting for quotes from a few sources that I found when I Googled the NSN.

I was trying to order 2 of each (2 filters, 2 gaskets and 2 o-rings) . I don't need 20 of each! Probably don't need to replace too often with the 4 micron fuel/water filter i installed.

I will try NAPA and see if they have any. Maybe i will also call Cummins.

 

[ARYankee]

I was trying to order 2 of each (2 filters, 2 gaskets and 2 o-rings) . I don't need 20 of each! Probably don't need to replace too often with the 4 micron fuel/water filter i installed.

I will try NAPA and see if they have any. Maybe i will also call Cummins.

I hear that. I was just thinking that if it was the same price for a large order then I may order several and sell them to folks on here at cost.

Keep us posted on what you find out from NAPA &/or Cummins.

 

[WILDBOY6X6]

fuel

HI I might have 1 or 2,also there are about 8 or so NHC250 engines comming up on GL not far from me soon .

 

[TURKEY131]

I was trying to order 2 of each (2 filters, 2 gaskets and 2 o-rings) . I don't need 20 of each! Probably don't need to replace too often with the 4 micron fuel/water filter i installed.

I will try NAPA and see if they have any. Maybe i will also call Cummins.

Any luck with a alternative for this filter?

 

[162tcat]

Call your local cummins. Cummins northwest has them in stock for a few bucks.

 

[TacticalDoc]

M939 5 TON FUEL PUMP FILTER 146483 NSN 2910-00-790-8736

I think that's the NSN

 

[Floridianson]

The Old TM I just found said to replace after 1000 gal. of fuel. Would be something to change / check when you get your truck home. Seems like if you did you would be good for a long while.

 

[WillWagner]

Guys, that screen filter is there for one thing only. It's there so if the pump takes a dump, the debris from the failure will not go into the injectors. It is not a filter that needs servicing. It flows backwards from a filter, flows inside to outside and there is a little magnet glued into the filter to help stop the debris. It is only a screen. The filters on the truck are close to 15 micron, the screen in the pump is just a chunk catcher. If ANY debris gets into that ole when you take the cap off, it goes directly to the injectors. You should NOT mess with it.

 

[Floridianson]

Yes I would agree that one needs to be real carefull about allowing something to enter the system. I also would not be afraid of this filter eather. Yes that is a old TM and it does say to check after rebuild but it would be nice to even know if it is there and what shape it is in. We have seen all kinds of things done to these machines so knowing what you have is better than not knowing.

 

[TacticalDoc]

So we are sure these are the right parts?

the part number for the filter! FP-146483 I also found a supply house that sells it. hdengineparts.com $2.77 each. O-ring Item #: M-154088 SEAL RING Item #: FP-154088 $0.13 each

 

[Floridianson]

I called Cummins South in Ocala and he knew right what I was asking for without any info outher than it's a Cummins PT. He said he had to order but was willing to get them without me paying first. Yes I do believe that filter number is correct Doc but I don't know about the O ring.

 

[supermechanic]

In the 25 years I have been working on these engines I have never needed to change this part.
It is just a steel strainer that is on the output side of the injector pump.
Rarely is it needed to disassemble this part, more chance to get dirt into the system if you mess with this.
Only time I have taken the cap off is to prime a newly rebuilt pump.
Of course, there are those that need to fiddle with everything, and they wonder why they always have some problem with their truck.
I have heard this referred to as "operator induced error".

 

[TacticalDoc]

In the 25 years I have been working on these engines I have never needed to change this part.
It is just a steel strainer that is on the output side of the injector pump.
Rarely is it needed to disassemble this part, more chance to get dirt into the system if you mess with this.
Only time I have taken the cap off is to prime a newly rebuilt pump.
Of course, there are those that need to fiddle with everything, and they wonder why they always have some problem with their truck.
I have heard this referred to as "operator induced error".

Good to know. I was going to change it every time I change the other filters. My truck is 30 years old and runs strong. No need to mess with it if its not needed.

 

[Floridianson]

They starting to scare you Doc. Those are opinions read the tm. Don't forget alot of crazy things have been done to the trucks or not done as the case my be. From the looks of your avatar nothing would scare you.lol

 

[TacticalDoc]

They starting to scare you Doc. Those are opinions read the tm.

No...just have more important issues to deal with on the truck. And, if its not needed at this point it can wait. Have change the front boots and seals. Then the other filters and fluids.

 

[WillWagner]

They starting to scare you Doc. Those are opinions read the tm. Don't forget alot of crazy things have been done to the trucks or not done as the case my be. From the looks of your avatar nothing would scare you.lol

No, not opinions, practical, working knowledge of the product. I don't care what the TM says, it's the gooberment. Nowhere in a Cummins manual does it say to replace the screen at ANY given mileage, hour, or fuel burned interval. The only time the screen gets serviced is at the time the pump is removed and repaired on the stand. Unless the pump has had a catastrophic failure or is full of rust, it simply gets cleaned out with cleaner and air, then reinstalled. Supermechanic is correct, messing with things just to do something could bring you issues that can be expensive. The pump housing is aluminum, the screen filter cap is steel. Only seen this twice, but, IF the cap comes out hard, it can f the threads up in the housing, then you can develop a leak that will not go away until the housing is replaced, and that is something that someone here cannot do in their garage.

 

[Floridianson]

Agreed that the filter may not ever need to be serviced. Now as to the worrie about something getting in to the fuel rail. There were a lot of people doing the duel fuel mod and they did not even worrie about getting something into the rail? There has been a lot of stupid stuff done to these trucks when changing the main fuel filter. My only thought is if you don't know the condition of a 30 year old filter you will never know if you don't check. I will go ahead and do one and report back.

 

[jwesley74]

Anyone need this filter? I just bought one only to discover after I ordered it that my 925a2 doesn't have that. I was looking at wrong TM. So now I have a filter for the NHC250 pump but no truck to use it on. I paid $11 for it. I'll be happy to sell to anyone for $11+shipping and drop in the mail. Just PM me.

 

[Floridianson]

Will your opinions and wisdom has allways been well respected around here and I agree.
Ok I did two trucks this morning and had no problems.
Good screwdriver with a pair of vise grips on the handel. I cleaned with the area with brakleen and the cap came loose with just a little twist and easy with no thread dammage or pull. In the pics you can see the magnet has found some steel and the inside of the screen has light stuff and look like lint. Would there be any performance gain. I doubt it, would the screen be fine and not need service., I guess so. Just be real clean if you decide to check what yours is like.

 

[Floridianson]

Of course, there are those that need to fiddle with everything, and they wonder why they always have some problem with their truck.
I have heard this referred to as "operator induced error"

Here is my cute saying Know your weapon and your machine better than whats for dinner.