Life expectancy of a P7100 - Dodge Cummins Diesel Forum
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post #1 of 16 (permalink) Old 11-12-2011, 08:44 PM Thread Starter
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Life expectancy of a P7100

I know there are a lot of variables that determine the life of an injection pump, but I am just curious to see when other people have had to replace or rebuild their P7100. I have close to 200k miles on the original injection pump. I always use some type of additive to enhance lubricity and always keep the filters changed on a regular basis, but anything made my man will fail at some point. I have heard the p7100 pumps are very robust, but how many miles can one take before needing new barrels and plungers, delivery valves, etc?


1996 2500 2x4, 12v cummins, 192k miles, auto tranny, long bed, stock besides transmission upgrades and plan to add a little more power.
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post #2 of 16 (permalink) Old 11-12-2011, 09:48 PM
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Welp, there's a number over a million miles. A couple of weeks ago, I personally drove one that's over 800k. In fact, the STOCK AUTO TRANS in that truck is also over 800k! If that's not a record, it must be close. Anyway, pump life from normal wear just isn't a factor on these engines. Your hands will probably wear the rim off the steering wheel first.

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post #3 of 16 (permalink) Old 11-13-2011, 11:06 AM
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i also have two of them with over a 1,000,000 miles on each and one truck with a highly modified pump when the truck was new in 1998 none of our p pumps have ever needed work except for a fuel shut off solenoid

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post #4 of 16 (permalink) Old 11-14-2011, 12:59 PM
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I was reading about a taxicab in Greece with a Mercedes diesel P- pumped with 3.6 million miles on it.
Lots of parts had been replaced or rebuilt but not the P- pump.

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post #5 of 16 (permalink) Old 11-14-2011, 10:10 PM
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i must be pretty unlucky, my 95 went at 175000 barrels were warped

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post #6 of 16 (permalink) Old 11-15-2011, 08:50 PM
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Originally Posted by kingjohn1027 View Post
I always use some type of additive to enhance lubricity ..........
That money would be better spent on beer. I had my IP repaired at 750k because of an oil leak where the throttle rod sticks out on top. Not one fuel lubed part needed replacement. I never use additives, but I do drink beer.

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post #7 of 16 (permalink) Old 11-15-2011, 09:46 PM
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wow i wonder if the other injections pump can last that long

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post #8 of 16 (permalink) Old 11-16-2011, 11:57 AM
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Beer

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That money would be better spent on beer. I had my IP repaired at 750k because of an oil leak where the throttle rod sticks out on top. Not one fuel lubed part needed replacement. I never use additives, but I do drink beer.
I never met a beer I didn't like, some just better than others.
kk
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post #9 of 16 (permalink) Old 11-16-2011, 12:05 PM
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I never met a beer I didn't like, some just better than others.
kk
People often ask me what brand i drink, to which i reply, OPB(other people's beer).


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post #10 of 16 (permalink) Old 04-13-2012, 11:05 AM
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Originally Posted by illflem View Post
I was reading about a taxicab in Greece with a Mercedes diesel P- pumped with 3.6 million miles on it.
Lots of parts had been replaced or rebuilt but not the P- pump.
Its actually a M-Pump... same thing though. My uncle has 1.2million KM on our 2.4D Toyota Hilux in Greece.

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post #11 of 16 (permalink) Old 04-13-2012, 06:43 PM
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around 500k on my original, replaced it with a used one that a buddy had sitting on the shelf (it had 2 plungers stuck from improper and lengthly storage) and it was good for another 30k, but its now starting to stick a plunger randomly

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post #12 of 16 (permalink) Old 04-13-2012, 10:22 PM
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around 500k on my original, replaced it with a used one that a buddy had sitting on the shelf (it had 2 plungers stuck from improper and lengthly storage) and it was good for another 30k, but its now starting to stick a plunger randomly
Is it now....*rubs villainous beard while thinking*

What does the engine do when it randomly sticks? And how long does it last? Does it just vibrate a little very briefly?

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