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Thread: b20 oil pump

  1. #1
    3Geez Veteran MessyHonda's Avatar
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    b20 oil pump

    i need to find one for my build.....any one can help me out?

    1989 Honda Accord LX-i
    B18c1 swap since 7/2011
    175whp and 132tq
    Redzone tuned



  2. #2

    2oodoor's Avatar
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    Re: b20 oil pump

    the one you have is probably just fine... this isnt one of those exclusive parts is it? slant b20 pump works on it yes?

  3. #3
    LX User stephensimmons's Avatar
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    Re: b20 oil pump

    Quote Originally Posted by MessyHonda View Post
    i need to find one for my build.....any one can help me out?
    They dont make a new one for it?

  4. #4
    3Geez Veteran MessyHonda's Avatar
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    Re: b20 oil pump

    Quote Originally Posted by stephensimmons View Post
    They dont make a new one for it?
    its hard to find parts for a motor that was never imported to the US

    1989 Honda Accord LX-i
    B18c1 swap since 7/2011
    175whp and 132tq
    Redzone tuned

  5. #5
    LX User stephensimmons's Avatar
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    Re: b20 oil pump

    Quote Originally Posted by MessyHonda View Post
    its hard to find parts for a motor that was never imported to the US
    So its a b20a? or just b20?

  6. #6


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    Re: b20 oil pump

    Yeah i wanted a new one for mine but i could not get one so i am going to have mine cleaned up since it was new before i blew the motor. I think carot said you can use internals for the pump from something off the shelf maybe the B20A5?

    I probably have a used pump if you need one to rebuild.

  7. #7

    carotman's Avatar
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    Re: b20 oil pump

    I posted the part numbers earlier today
    https://www.3geez.com/forum/showthread.php?t=29259

    Just get new internals from your local dealer.

    http://pages.videotron.com/omus
    3geez member since July 12 2000

    I need these parts!
    https://www.3geez.com/forum/showthread.php?t=67742

  8. #8
    3Geez Veteran MessyHonda's Avatar
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    Re: b20 oil pump

    so im going to pick up a b20a5 oil pump and try to rebuild mine since my dealer says some parts are not avaliable...also going to pick up a b20a3 water pump

    1989 Honda Accord LX-i
    B18c1 swap since 7/2011
    175whp and 132tq
    Redzone tuned

  9. #9

    AccordB20A's Avatar
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    Re: b20 oil pump

    i thought b20a3 and b20a5 were the same block

  10. #10

    carotman's Avatar
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    Re: b20 oil pump

    Yup, they are the same casting. However, the B20A5 water pump is different from the B20A3. The difference is in the gear diameter. The B20A3 is the same as the 1st gen JDM B20A

    http://pages.videotron.com/omus
    3geez member since July 12 2000

    I need these parts!
    https://www.3geez.com/forum/showthread.php?t=67742

  11. #11

    AccordB20A's Avatar
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    Re: b20 oil pump

    good to know, cause ones single cam and ones not

  12. #12
    SEi User Hauntd ca3's Avatar
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    Re: b20 oil pump

    Oil pump as either a whole unit or as parts are no longer available.
    Just been on the phone to Honda , and they just happened to be on the Honda japan parts link, nothing available at all.
    Does any one have an early b16a pump to pull to bits and measure ?

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