Black plastic automotive coolant bypass pipe with multiple hose connections on white background

Coolant Hose Junction [Late 2WD Vanagon]

$39.95
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Black plastic automotive coolant bypass pipe with multiple hose connections on white background
  • Black plastic automotive coolant bypass pipe with multiple hose connections on white background
  • Black plastic automotive coolant overflow tank with multiple hose connections
  • Black plastic automotive coolant expansion tank with tubular side outlet on white background
  • Close-up of vehicle chassis showing -438A and -438B nipple locations with labeled arrows.
Coolant Hose Junction [Late 2WD Vanagon]
Coolant Hose Junction [Late 2WD Vanagon]
Product: 251-121-438B
Works With: 1986-1991
Manufacturer: Quality Aftermarket
Availability: Low Stock
$39.95

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A superior solution is available! Check out our Heavy-Duty Anodized Aluminum Coolant Hose Junction.

There were three different coolant junctions used on the 2WD Vanagon. The part numbers of the early ones (1986-87) ended in -438 (manual transaxle) and -438A (automatic transaxle) and the later (1988-91) part number ended in -438B (all transaxles).

If you are wanting the original plastic junction, we only carry the later -438B because it accepts a superior hose (251-121-130B) that runs between it and the passenger side cylinder head, with a longer sweep that flexes less and lasts longer. It is in your best interests to update to this hose.

Fits: All 1986-91 2WD Vanagon only. Will not fit 4WD Syncro.

Ordering and fitment notes:

• If your van already has the 251-121-130B hose, all you need to buy is a new -438B coolant junction, and you are all set.

• If your van has a -438 or -438A junction you will also need to buy the 251-025-130B hose.

• If your van has an automatic transmission it will have a -438A, you need to buy the 251-025-130B hose do ONE of the two options below:

1) Buy a 5/8” T-fitting because the -438B junction we offer is missing the nipple that feeds the original automatic transmission cooler.

2) Replace the original coolant-fed ATF cooler with one of our external ATF cooler which is highly recommended, read this article to learn why.
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J
Jeff

Quick install, worked great!

J
Jeff R.

A very easy plug and play replacement for the old worn out original.

J
John M.
I bought this and it worked good

No issues and I noticed there is an updated aluminum one. This one worked great on my last van (still have it) but rebuilding another and I think I'm going to try the aluminum one.

F
Farid G.
Hasn't given any issues

Fits well and stopped the leak

S
Steven M.
Coolant part

Fit exactly as it should. Fast delivery. Easy install.