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Cummins Swap Cost

2004 Chevy Tahoe with a Cummins 4BT turbo diesel inline-four

Deboss Garage recently shared a video detailing the costs of a typical Cummins engine swap. You can bet with projects such as 6BT powered Dodge Ram and a 4BT powered Chevy Tahoe he gets a lot of people asking how much it would cost to swap a Cummins diesel into their vehicle. The total comes out to between $11,150-$12,650 CAD or around $8,634-$9,795 USD.

Price CADPrice USDParts/Service
$1,500$1,161basic rebuild (head, pistons, rings & bearings)
$2,000$1,549adapter plate, flywheel and starter
$600$464shift controller
$500$387alignment fluids, fittings, hoses, machining
$4,550$3,52470 hours labor at DG shop rate of $65/hr
$11,150-$12,650$8,634-$9,795Total + shipping and taxes

Deboss goes into more detail about a diesel swap along with pros and cons.

Source: Deboss Garage

19 thoughts on “Cummins Swap Cost”

    1. Yeah – there’s a “lot” of on-road 6bt’s of various vintages from dodge’s and step vans, to medium duty trucks and school busses.

      The 4bt on the other hand really on came in step-vans and other oddball applications for on-road engines.

      There’s a bit of a supply-and-demand thing going on there

  1. I am going to buy a step van cargo truck soon, like the ones Fed Ex, UPS uses for residential deliveries or similar. Would it make sense to try to find my truck at a junk yard without the engine and have the 4BT installed. I am sold on this engine due to it’s longevity, mileage, and reliability.

  2. Hello, im a diesel mechanic in alberta canada. Ive got a 4200 service truck with a vt365 pos. With an allison.
    How hard would it be to put in a 6.7?
    Would it bolt up to the allison?
    Id like the reliability and a bit more hp.
    Thanks for your input!

    1. Well your Allison should be a sae#2 or sae#3 bellhousing so it wouldn’t directly bolt up but you could get a the matching flywheel housing for the back of the Cummins for that trans as the flywheel housings of Cummins engines are removable because they are used in so many different applications.

  3. I swapped a 99 5.9 into an 02 v10 truck. both are 5 speed trucks. installed a relay into harness for power to injection pump, truck fires right up but revs to 2800 RPM. accelerator linkage is good and has no effect on idle.
    any suggestions?

  4. I have a step van with a 8cl international Navistar diesel and I’m looking into swapping it out for a Cummins Diesel engine that would suit its weight. Asking for suggestions/opinions and possible cost of such an undertaking. Thank you

  5. I have a 1993 sub urban 7.4 motor aut transm 4/4 2500 the gas motor died,i live in PR this vehicle belongs before to the coast guard federal govt car ,we have upgrade paint interiors air condt etc i will like to know if i ,can sent this car to make the swap change with the diesel engine cummings 6,for a prof esional job ,how much i should pay

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