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  1. #1

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    Question Polaris OEM through-hull bearing (1341145) vs. aftermarket

    Hey Guys,
    I'm not sure if any of you are still posting, but I wondered if you prefer the stock shaft couplers to the aftermarket?
    I installed an aftermarket shaft coupler last year, the ones that are polished aluminum with the grease fitting on top.
    I only had 5-10 hours on it, and it failed during my first ride of the season yesterday.
    It was fully greased and everything was tight and now I can't produce power to the jet pump and there is water leaking past the seal.
    This is on a near mint 96 SLX 780 with only 40 hours on it.


  2. #2

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    Just to clarify boys, I'm talking about the through hull shaft bearing, not the coupler.
    The OEM Part# is 1341145.

  3. #3
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by knob_style View Post
    ... prefer the stock shaft through-hull bearing assembly to the aftermarket?

    I installed an aftermarket assembly last year, the ones that are polished aluminum with the grease fitting on top.
    I only had 5-10 hours on it, and it failed during my first ride of the season yesterday.
    It was fully greased and everything was tight and now I can't produce power to the jet pump and there is water leaking past the seal.

    This is on a near mint 96 SLX 780 with only 40 hours on it.
    I would be checking engine alignment with the jet pump. Also check driveshaft for wear in the bearing area, worn splines or bent shaft (runout).

    I prefer the OEM bushing type as they do not rust even when abused or not greased regularly. I prefer rebuilt with new sintered Teflon bushings and new seals as most of the units I see have excessive wear in the bushings, and the original seals are now hardened from age and don't seal properly even with low running hours.

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