Page 1 of 2 12 LastLast
Results 1 to 25 of 26

Thread: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

  1. #1

    carotman's Avatar
    Join Date
    Jul 2000
    Vehicle
    89 Accord LX/B20A | 87 Accord Hatch "S" Stock | 94 Civic Hatch CX
    Location
    Montreal South Shore
    Posts
    9,978

    USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    Well, I see alot of people asking where to get that part and that part and another part from local USDM cars when rebuilding their B20A.

    I will try to do a list of most of the parts available in the US for your B20A engine.


    Here are the parts and the USDM engine/car it corresponds

    ---------Part ---------- Engine ---- Car------------------

    Axle (Right side) ------ A20A ---- (Need to use a 88-89 Prelude inner joint)
    Camshafts --------------- B18A1 ---- (Acura Integra 90-93 non vtec, some work involved)
    Clutch disc ------------- B20A5 ---- (Prelude 2.0si 88-89)
    Crank bearings ---------- B20A5 ---- (Prelude 2.0si 88-91)
    Crank sensor assembly (1) B20A5 ---- (Prelude 2.0si 88-91)
    Crank sensor assembly (2) D16A1 ---- (Acura Integra 86-87) *used with a Vacuum Advance Accord ECU*
    Distributor assembly (1)- B20A5 ---- (Prelude 2.0si 88-91)
    Distributor assembly (2)- D16A1 ---- (Acura Integra 86-87) *used with a Vacuum Advance Accord ECU*
    Exhaust manifold gasket - B20A5 ---- (Prelude 2.0si 88-91) *stud holes do not match perfectly, can be easily fixed*
    Intake manifold --------- A20AX ---- (Accord 86-89)
    Intake manifold gasket -- A20AX ---- (Accord 86-89)
    Pistons ----------------- B20A5 ---- (Prelude 2.0si 88-91)
    Piston Rings ------------ B20A5 ---- (Prelude 2.0si 88-91)
    Pressure plate ---------- B20A5 ---- (Prelude 2.0si 88-89)
    Rear main seal ---------- B20A5 ---- (Prelude 2.0si 88-91)
    Rods -------------------- B20A5 ---- (Prelude 2.0si 88-91)
    Shift rod seal ---------- A20AX ---- (Accord 86-89)
    Spark plug wires (1) ---- B20A5 ---- (Prelude 2.0si 88-91) *use with B20A5 distributor*
    Spark plug wires (2) ---- B18A1 ---- (Acura Integra 90-93) *should be fine with the JDM Accord/86-87 Integra distributor*
    Starter assy ------------ A20AX ---- (Accord 86-89) *With auto transmission*
    Throw out Bearing ------- B18A1 ---- (Acura Integra 90-93 non vtec)
    Valves ------------------ B20A5 ---- (Prelude 2.0si 88-91)
    Valve Cover gasket set -- B20A5 ---- (Prelude 2.0si 88-91)
    Valve seals ------------- B20A5 ---- (Prelude 2.0si 88-91)
    Water Pump Assembly ----- B20A3 ---- (Prelude S 88-89)

    -------------------------------------------------------------


    That list is far from complete. I do have more I need to post (have it written somewhere)
    Feel free to submit the parts you find.



  2. #2
    Accord of the Year - 2008

    TWOLOUDNPROUD's Avatar
    Join Date
    May 2003
    Vehicle
    89 Accord No Motor and 88 Accord HB LX-i
    Posts
    3,352

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    B20a Timing Belt (Gates P/N-T188)
    LX-R coming soon Here's a hint. 89mm stroke/ 41.60cc head /ARP head & main stud's /SRP piston's 81.5mm 9:5:1/Crower Rod's & more to come

  3. #3

    bullard123's Avatar
    Join Date
    Nov 2003
    Vehicle
    1988 Hatch LXI
    Location
    COLORADO SPRINGS
    Posts
    2,931

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    A20A3 transmission/ B18a bellhousing

  4. #4

    2oodoor's Avatar
    Join Date
    Jun 2006
    Vehicle
    86 LX JDM B20A
    Location
    Georgia-lina
    Posts
    9,044

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    Quote Originally Posted by bullard123 View Post
    A20A3 transmission/ B18a bellhousing
    b18a bellhousing is not USDM, however the A20 tranny is

  5. #5

    2oodoor's Avatar
    Join Date
    Jun 2006
    Vehicle
    86 LX JDM B20A
    Location
    Georgia-lina
    Posts
    9,044

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    Quote Originally Posted by TWOLOUDNPROUD View Post
    B20a Timing Belt (Gates P/N-T188)
    Also Gates T-249
    Last edited by 2oodoor; 10-02-2008 at 10:16 AM.

  6. #6

    2ndGenGuy's Avatar
    Join Date
    Jan 2005
    Vehicle
    1981 Accord Hatchback, 1984 Accord Sedan
    Location
    Seattle, WA
    Posts
    9,682

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    The water pipe o-ring for the B20A is the same as the A20 o-ring.

  7. #7
    LX User OldSchool86's Avatar
    Join Date
    Sep 2008
    Vehicle
    1986 Accord Lx 5Speed
    Location
    A T L a n t a, GA
    Posts
    138

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    D16(s20) speed sensor will fit the b20a and the a20a trans. so if you want to run an electric speedo it will work.
    let me rephrase...

    the speed sensor out of the b20a auto trans fits and works in the d16(s20) trans...so...it should be the same vice-versa.

  8. #8

    Ichiban's Avatar
    Join Date
    Jan 2005
    Vehicle
    82 Honda Accord B20A, 76 Honda XL 175, 04 Honda Foreman ES, 83 Toyota shortbox 4x4
    Location
    North of You.
    Posts
    2,090

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    I noticed the rear main seal interchanges with the B20A5. Does anyone know about the front main, or the rear main seal retainer gasket?
    ICHIBAN!
    "Now, even more better!"

  9. #9

    AccordB20A's Avatar
    Join Date
    Sep 2005
    Vehicle
    1987 Honda Accord 2.0Si
    Location
    Stratford, New Zealand
    Posts
    7,407

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    i thought the b20a and b20a5 were pretty much the same apart from having different bolt up patterns on the head bellhousing and engine mounts

  10. #10

    2ndGenGuy's Avatar
    Join Date
    Jan 2005
    Vehicle
    1981 Accord Hatchback, 1984 Accord Sedan
    Location
    Seattle, WA
    Posts
    9,682

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    They share crankshafts, so I imagine that the crank seals would interchange. Not sure about the retainer gasket though.

  11. #11

    carotman's Avatar
    Join Date
    Jul 2000
    Vehicle
    89 Accord LX/B20A | 87 Accord Hatch "S" Stock | 94 Civic Hatch CX
    Location
    Montreal South Shore
    Posts
    9,978

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    yeah, the main seals are the same. I changed mine with a B20A5 seal.

  12. #12

    Ichiban's Avatar
    Join Date
    Jan 2005
    Vehicle
    82 Honda Accord B20A, 76 Honda XL 175, 04 Honda Foreman ES, 83 Toyota shortbox 4x4
    Location
    North of You.
    Posts
    2,090

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    Quote Originally Posted by carotman View Post
    yeah, the main seals are the same. I changed mine with a B20A5 seal.
    Was the rear main retainer gasket the same though?
    ICHIBAN!
    "Now, even more better!"

  13. #13

    carotman's Avatar
    Join Date
    Jul 2000
    Vehicle
    89 Accord LX/B20A | 87 Accord Hatch "S" Stock | 94 Civic Hatch CX
    Location
    Montreal South Shore
    Posts
    9,978

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    Err, diagram please?

  14. #14

    Ichiban's Avatar
    Join Date
    Jan 2005
    Vehicle
    82 Honda Accord B20A, 76 Honda XL 175, 04 Honda Foreman ES, 83 Toyota shortbox 4x4
    Location
    North of You.
    Posts
    2,090

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    I'm starting to believe that the rear main retainer block doesn't actually have a gasket, it's just sealed with black RTV, in which case, yes, it interchanges quite fine.
    ICHIBAN!
    "Now, even more better!"

  15. #15

    2oodoor's Avatar
    Join Date
    Jun 2006
    Vehicle
    86 LX JDM B20A
    Location
    Georgia-lina
    Posts
    9,044

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    oil pump same??

  16. #16

    carotman's Avatar
    Join Date
    Jul 2000
    Vehicle
    89 Accord LX/B20A | 87 Accord Hatch "S" Stock | 94 Civic Hatch CX
    Location
    Montreal South Shore
    Posts
    9,978

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    The oil pump housing is different.

    1st gen B20A (86-89 Accord and 86-87 Prelude):
    Parts list: http://www.hondaworld.ru/honda_spare...01_category_1/


    2nd gen B20A (Prelude 88-91):
    Parts List:http://www.hondaworld.ru/honda_spare...00_category_1/


    However, all the internal parts can be cross referenced from other Honda engines.

    This means that if you can' get a "new pump" you can always rebuild it if the housing is in good condition

    In case the Hondaworld.ru site is down, here are the part numbers:
    1 11104-PH3-000 SEPARATOR, OIL
    2 15100-PJ5-020 Насос масляный
    3 15111-PH3-020 BODY, OIL PUMP
    4 15112-PH3-020 COVER, OIL PUMP
    5 15131-PH3-023 ROTOR, PUMP INNER
    6 15132-PH3-013 ROTOR, PUMP OUTER
    7 15205-PH3-003 GASKET, OIL FILTER BASE (ARAI)
    7 15205-PH3-004 GASKET, OIL FILTER BASE (NOK)
    8 15220-PH3-000 STRAINER COMP., OIL
    9 15231-PE0-000 VALVE, RELIEF
    10 15232-PG6-000 SPRING, RELIEF VALVE
    11 15233-PC6-000 BOLT, SEALING, 18MM
    12 15234-PC6-000 WASHER, SEALING, 18MM
    13 15301-PH3-000 BASE, OIL FILTER
    14 15400-PH1-014 Фильтр масляный (TOYO ROKI)
    14 15400-PK1-003 Фильтр масляный (TOKYO ROKI)
    14 15400-PH1-F02 Фильтр масляный (LABINAL-PURFLUX)
    15 15500-PH3-005 COOLER, ENGINE OIL (TSUCHIYA)
    15 15500-PH3-014 COOLER, ENGINE OIL (DENSO)
    16 15570-PH3-003 BOLT ASSY., OIL COOLER CENTER
    17 90041-PA5-000 BOLT, STUD, 6X28
    18 90052-PK1-000 BOLT, FLANGE, 6X25
    19 91212-PJ5-013 OIL SEAL, 38X53X7
    20 91307-PE0-010 O-RING, 25X2.4
    21 91310-PH3-003 O-RING, 18X2.4
    22 91316-PE7-730 O-RING, 62.4X3.1
    23 92900-080-281B BOLT, STUD, 8X28
    24 93600-060-160A SCREW, FLAT, 6X16
    25 9405-008-080 Гайка 8MM
    26 9430-108-140 DOWEL PIN, 8X14
    27 95700-060-1008 BOLT, FLANGE, 6X10
    28 95700-060-5008 BOLT, FLANGE, 6X50
    29 95701-060-1608 BOLT, FLANGE, 6X16
    30 95701-080-3208 BOLT, FLANGE, 8X32


    You can search for USDM part numbers there:
    www.hondapartsdeals.com.

    You'll see that everything is available from Honda un North America to rebuild your oil pump.

  17. #17
    DX User
    Join Date
    Mar 2011
    Posts
    1

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    does anyone know if the head off the b20a out of the 2g prelude will fit on a b20a5 block

  18. #18
    DX User
    Join Date
    Apr 2011
    Vehicle
    89 honda prelude
    Location
    san antonio texas
    Posts
    3

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    Quote Originally Posted by 2ndGenGuy View Post
    They share crankshafts, so I imagine that the crank seals would interchange. Not sure about the retainer gasket though.
    I just put a jdmB20a in my 89 prelude and from what I can tell everything was comparable except for the clutch.

  19. #19
    DX User
    Join Date
    Apr 2011
    Vehicle
    89 honda prelude
    Location
    san antonio texas
    Posts
    3

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    Quote Originally Posted by AccordB20A View Post
    i thought the b20a and b20a5 were pretty much the same apart from having different bolt up patterns on the head bellhousing and engine mounts
    The b20a and b20a5 are exactly alike except for the came and clutch. The C/R is slightly higher also

  20. #20
    DX User
    Join Date
    Apr 2011
    Vehicle
    89 honda prelude
    Location
    san antonio texas
    Posts
    3

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    I'm looking for performance parts for my b20a any ideas

  21. #21

    bullard123's Avatar
    Join Date
    Nov 2003
    Vehicle
    1988 Hatch LXI
    Location
    COLORADO SPRINGS
    Posts
    2,931

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    What about the a20 and b20a alternators? I know i have a b20a one. Anyone know if they are the same?

  22. #22

    2ndGenGuy's Avatar
    Join Date
    Jan 2005
    Vehicle
    1981 Accord Hatchback, 1984 Accord Sedan
    Location
    Seattle, WA
    Posts
    9,682

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    I don't know if it bolts 100% directly, but I was able to make my ES alternator bolt on to the B20A. I think I swapped the adjuster bracket, or ground the bracket slightly or something like that. The mount on the engine is the same though. I mean it was super super easy.

  23. #23

    bullard123's Avatar
    Join Date
    Nov 2003
    Vehicle
    1988 Hatch LXI
    Location
    COLORADO SPRINGS
    Posts
    2,931

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    Quote Originally Posted by 2ndGenGuy View Post
    I don't know if it bolts 100% directly, but I was able to make my ES alternator bolt on to the B20A. I think I swapped the adjuster bracket, or ground the bracket slightly or something like that. The mount on the engine is the same though. I mean it was super super easy.
    Ok cool. I think I remember them being the same. I found the part nuumber U.S. alternator but couldn't find the part# for the B20A alternator. Hopefully Carotman will check in soon to confirm. Thanks for the info

  24. #24

    AccordB20A's Avatar
    Join Date
    Sep 2005
    Vehicle
    1987 Honda Accord 2.0Si
    Location
    Stratford, New Zealand
    Posts
    7,407

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    i rememberer the a20 alt having a different pulley?

  25. #25

    2ndGenGuy's Avatar
    Join Date
    Jan 2005
    Vehicle
    1981 Accord Hatchback, 1984 Accord Sedan
    Location
    Seattle, WA
    Posts
    9,682

    Re: USDM parts that will fit the JDM 3g Accord/ 2g Prelude B20A

    Hmm yeah I can't remember if I swapped my crank pulley, or if I swapped the alternator pulley...

Similar Threads

  1. Replies: 8
    Last Post: 10-20-2007, 04:25 PM
  2. jdm b20a in to usdm 1989 accord lx-i
    By RONERY in forum JDM B18A / B20A Swap Tech
    Replies: 9
    Last Post: 03-15-2007, 05:52 PM
  3. A USDM Hat for my B20A
    By TWOLOUDNPROUD in forum Classic Honda Pics & Videos
    Replies: 29
    Last Post: 10-24-2005, 11:29 PM
  4. Replies: 10
    Last Post: 08-30-2005, 01:10 PM
  5. JDM Accord B20a vs USDM Prelude B20a
    By flip888 in forum General Engine Swaps
    Replies: 9
    Last Post: 04-24-2005, 12:11 PM

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
VigLink badge