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Topic: Lift Pump - 8.3 (Read 1805 times) previous topic - next topic

Lift Pump - 8.3

After reading some threads regarding improved performance with lift pump replacement, I've decided to replace mine. It must have been replaced sometime in that it has studs and nuts in lieu of bolts. Anyhow, this thread  (B&C Thread) from Barry & Cindy refers to a pump from Thoroughbred Diesel for a 5.9L @ $92. I see what looks to be the same pump on Amazon (Amazon Pumps)  with pricing all over the map. Most refer to the 5.9L and the one I saw for the 8.3L was not available. Just want to make sure I order the right one. Can someone confirm? Thanks.
jor

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Re: Lift Pump - 8.3

Reply #1 –
Jor,

Link below where I bought mine.  ALL of the Cummins transfer pumps presently being sold are made in China - even the ones proudly branded "Cummins" and sold at Cummins dealers.  So mostly just shop around for the right part number at the lowest price.  All 5.9L and 8.3L mechanical engines use the same pump.

Fuel Transfer Pump Alliant Power Stock Replacement Dodge Cummins 1994-1998 5.9L
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Lift Pump - 8.3

Reply #2 –
Found a "Carter" brand on Ebay last year ,havent used it yet.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Lift Pump - 8.3

Reply #3 –
Carter is made in Turkey,don't forget to get the gasket.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Lift Pump - 8.3

Reply #4 –
Just me but I would take my engine number to Cummins and get the correct one for my engine. Instead of a online "will fit". After all how many of them do you buy. Just think for a moment about how many posts here are a result of will fit internet parts that don't work as they should. But as always do what suits you 😎
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country

Re: Lift Pump - 8.3

Reply #5 –
Quote from: bbeane –
Just me but I would take my engine number to Cummins and get the correct one for my engine.
This might be a good time to to remind our newer members about a valuable FREE online resource available to all owners of Cummins powered vehicles/machines.  I'm talking about Cummins QuickServe Online.  Any Cummins engine owner can sign up at this website at no cost.  All you need is your engine serial number (found on the engine data plate).  Once registered, you have access to a massive amount of information about your specific engine, including parts diagrams, service manuals, engine specific tools and much more.

There is NO logical reason to NOT sign up!  DO IT TODAY!

Cummins QuickServe Online    (See "Create An Account" in the left margin)
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Lift Pump - 8.3

Reply #6 –
Good reminder, Chuck.  A VERY valuable resource for those with Cummins engines.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Lift Pump - 8.3

Reply #7 –
Thanks, guys. Just ordered one from Chuck's source. I'm hoping for a little improvement in performance. The 8.3 is alright but I have to say, I miss my M11.
jor
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99 320

Re: Lift Pump - 8.3

Reply #9 –
When my C8.3 was acting up it was the fuel lines.
John
1998 U270 34'

Re: Lift Pump - 8.3

Reply #10 –
Quote
When my C8.3 was acting up it was the fuel lines.

Mine is running fine. Actually, it has a bit more power than I expected, however, if I can get a bit more out of it, that would be great. I'll post results.
jor
93 225
95 300
97 270
99 320

Re: Lift Pump - 8.3

Reply #11 –
How would a lift pump give engine more performance unless the engine was starving for fuel? Horse power is regulated by air and fuel set internally. Does a specific pump provide more fuel providing the engine could exhaust it?
'The strength of the effort is the measure of the result'
1995 U320SE
40'
#4740
#17648

Re: Lift Pump - 8.3

Reply #12 –
If you want to have a better understanding of how a new lift pump might (or might not) improve your fuel system, you need a fuel pressure gauge.  If you install the gauge before you change the pump, you can record some baseline data.  Then, when you change the pump (or any other system component), you can see the results in real numbers.  The gauge is also a trouble shooting tool which can be helpful in diagnosing fuel system problems, and can give advance warning of plugged filters and fuel lines.  Installing the gauge (in the engine compartment) is a simple project.

I went through this fuel system exercise about 3 years ago, and with the help of other Forum members, documented some actual real-world improvement in my engine performance.  The details are in the thread linked below:

Fuel System Science Project
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Lift Pump - 8.3

Reply #13 –
Thank you for the links as well as the detailed write up! A gauge seems logical as well as practical. I will be adding one soon. I really like it when rubber meets the road.
'The strength of the effort is the measure of the result'
1995 U320SE
40'
#4740
#17648

Re: Lift Pump - 8.3

Reply #15 –
Jor:  Gale Banks engineering used to make exceptional kits for c8.3's.  Drove many at 400 safe reliable hp.

What hills?

Discontinued long ago. 

Others do well known mods to the c8.3
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: Lift Pump - 8.3

Reply #16 –
Found a Delphi brand lift pump model HFP701,could not find where it is made,various prices at various places.
96 U270 BUILD 4810
85 380SL
Drummonds TN.
 

Re: Lift Pump - 8.3

Reply #17 –
Had to replace my lift pump last year.  Just make sure whoever installs does not leave a leak and gasket and bolts or nuts are secure.  Can cause a major issue if not installed properly.
Dan & Shirley Stansel
2002 U295 4020 AGDS Build#6054
Towing Buick Enclave & M &  G Braking
Emerald Bay, Lake Palestine, Texas
MC# 16650