Results 1 to 2 of 2

Thread: AN fitting onto factory 3/8 rubber hose

  1. #1

    Default AN fitting onto factory 3/8 rubber hose

    Hi. I have an 03 IS300 and was looking into running dual coolers (for auto transmission and power steering) and have a few questions regarding what I need for fittings. The factory lines for the transmission and power steering is 3/8 inner diameter. Which fittings would I need in order to be able to adapt an AN fitting onto my factory hoses? Not familiar with the AN system of sizing hoses. What would be the most similar diameter for my factory 3/8 ID hose (-6AN or -4AN perhaps)? Thanks.

  2. #2
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    17,649

    Default

    Quote Originally Posted by cassius View Post
    Which fittings would I need in order to be able to adapt an AN fitting onto my factory hoses?
    A rubber hose will first require a barb to NPT (pipe thread) fitting:
    http://www.holley.com/types/Hose%20B...20Adapters.asp (barb fittings)
    http://www.holley.com/types/Aluminum...e%20Thread.asp (Ano-Tuff)
    Then use a female NPT coupling to thread it to a -6AN fitting.
    http://www.holley.com/991002ERL.asp (¼" NPT coupler)
    http://www.holley.com/AT991002ERL.asp (Ano-Tuff)
    http://www.holley.com/981606ERL.asp (-6AN/¼" NPT)
    http://www.holley.com/AT981606ERL.asp (Ano-Tuff)

    However, it would be simpler and easier to connect the -6AN fitting directly
    onto the ⅜" metal line (thus eliminating the entire length of OEM rubber hose):
    http://www.holley.com/165006ERL.asp
    http://www.holley.com/AT165006ERL.asp (Ano-Tuff)
    Or, if it's possible to remove the OEM transmission & power steering fittings,
    Earl's might have a direct fit fitting. (You'll need to know the thread size.)

    What would be the most similar diameter for my factory 3/8 ID hose (-6AN or -4AN perhaps)?
    For ⅜" I.D. hose, you'll need to use -6AN fittings.
    http://www.holley.com/data/TechServi...ad%20Sizes.pdf (AN sizes)
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
About us
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Headers, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.
Join us