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  1. #1
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    Default 04 Johnson 175hp lower unit swap which year model donors?

    04 Johnson 175hp lower unit swap which year model donors?
    2004 Johnson 175HP model J175PLSRB


    I’d like to change my orginal 20” shaft to a 25” actuely I like a 30” not sure if that’s possible.
    What year model engines can be used for a 20” to 25” shaft? The fitch engines appear to be the same.

    I do know the are shaft extension kits but there kindof pricy, hopping to find a used engine w/ blow power head & good hydraulics.
    I've read that the 150hp is the same lower unit. I believe this engine was also made in 200 &225HP which mite be the same lower unit.

    the image I post pictured left I believe is a fitch engine and it appears the same.

    Objective is to raise the engine bracket up above the waterline.

    Thanks for advice.
    2001johnson150hp 25 inch.doc
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    Last edited by TheBrain; 05-13-2022 at 05:53 PM.

  2. #2
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    Default Re: 04 Johnson 175hp lower unit swap which year model donors?

    Same unit just swap drive and shift shaft to looonger
    Pappys Sales and Service
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    Former racer KDBA (Kentucky Drag Boat Association)

  3. #3
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    Default Re: 04 Johnson 175hp lower unit swap which year model donors?

    what all year models & HP sizes are interchangeable? to my 2004 175hp model J175PLSRB

    from what I understand these old fitch engine w/ blown power head are extremely inexpensive if thats possible in boatworld.
    thanks for advice
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  4. #4
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    Default Re: 04 Johnson 175hp lower unit swap which year model donors?

    I believe you're safe with any 150/175 midsection and LU between '94 and '04. Note, the shift rod in the FICHT engines is 1/2" too long for a carbureted motor. I know from experience!!! My '96 E150 has a Lightning gearcase that was not original. When I first got the boat I had shifting problems and finally discovered someone had swapped a gearcase from a FICHT onto my Intruder which resulted in misalignment. Once I bought a shift rod correct for a Carb motor I was in good shape.

    Since you're using this for offshore running I'd suggest a Magnum gearcase instead of a Lightning. The lightning is okay, but the Magnum is more durable.

    KJ

  5. #5
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    Default Re: 04 Johnson 175hp lower unit swap which year model donors?

    my first image above is a 01 which I assume must be the last of the fitch.

    I see the decals for the 02-06 so I assume there all carbed. looper engines. I believe evinrude was sold to BRP and they restyled the 07 model.
    so 94-01 would require a 1/2" longer shift rod what about the drive shaft seams like it would need lengthening also?

    is the Magnum gearcase noticeably larger? different shape or color? like how would I tell the difference?
    thanks Kevin for the tips.
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  6. #6
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    Default Re: 04 Johnson 175hp lower unit swap which year model donors?

    The looper shift rod is 1/2" shorter than the FICHT. I've forgotten a lot of the FICHT history, but I think in '97-'98 FICHT 150 and 175 were marketed as both Evinrude and Johnson. They also sold both johnson & evinrude looper 150/175 at the same time. From '99-'06 only the Johnson outboards were loopers (except for the 4-strokes) and only Evinrude were FICHT RAM outboards from '99-'06 until the Etec was introduced in '07. So, I'll re-phrase my original statement, a FICHT or looper lower unit from '94 to '06 will likely fit your engine.

    The lightning gearcase is more pointed and has a speedometer pickup in the nose. The magnum gearcase is more rounded on the nosecone.

    KJ

  7. #7
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    Default Re: 04 Johnson 175hp lower unit swap which year model donors?

    OK excellent info. so the 94-06 will look cosmetically the same on the outside?

    this carbed looper engine is a serious fuel hog are the fuel injected fitchs & Etec (not that I'd want a etec unless it's emm sucking up sand & overheat problem was resolved) more fuel effieint?
    thanks again Kevin

  8. #8
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    Default Re: 04 Johnson 175hp lower unit swap which year model donors?

    Quote Originally Posted by TheBrain View Post
    OK excellent info. so the 94-06 will look cosmetically the same on the outside?

    this carbed looper engine is a serious fuel hog are the fuel injected fitchs & Etec (not that I'd want a etec unless it's emm sucking up sand & overheat problem was resolved) more fuel effieint?
    thanks again Kevin
    Sorry I didn't see your Etec question in your reply.

    The dark blue color of the LU from '94-'06 will look about the same. I think most of the Johnson looper engines that continued from '01 until '05 were white, but I could be wrong there.

    You are correct, the carbureted Looper engines are massive fuel pigs. Mine runs like a top, but it certainly drinks the gas. I wouldn't recommend a FICHT of any variety. Yes, they were improved from '02-'06 when they were re-branded FICHT RAM after the BRP takeover, but there is very little support for them. If you want to go with a DI engine you need to be looking for an Etec ('07 and newer). Any of the G1 engines would be a direct fit with your wiring harness and System Check gauges. Even your VRO oil tank is directly compatible with these engines. With an Etec you'll see vastly improved fuel economy (at least 30%, maybe close to double) and a much cleaner exhaust. Also, if the Etec is programmed for XD100 oil you'll use very little oil and will go through multiple tanks of fuel before needing to fill up.

  9. #9
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    Default Re: 04 Johnson 175hp lower unit swap which year model donors?

    And they are kaput out of business...stay away from Junkrude DI engines.
    Pappys Sales and Service
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