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Pros & Cons
Pros
Great product. Worked great with 5/16 in. Ultra high quality. Threaded on fine. Threads are correct and screw right in.
Fits in the differential breather * and allows for the relocation hose connection. Used a front differential vent breather by dorman (part # 924+284) on the other end.
Used to extend rear differential breather using 1/4 rubber tube on 5th gen 4runner sr5 (2015). Exact fit for 2005 toyota tacoma trd sport. Worked perfectly as intended for the diff on my tacoma.
Cons
Another chinese product that’s been labeled “genuine”.
Highlights
Quality
Worked great, seems like good quality material and screwed right in.
Used a stainless steel hose clamp to attach a piece of rubber hose and new air valve
They rust shut, then when the diff fluid heats up and expands, the pressure has nowhere to go.
Don't overtighten this piece, as it's not something you want to shear off.
Price
Ridiculously overpriced for what it is, but it's a plug and play replacement that works great for a rear diff breather mod on a... Read More
Packaging/appearance
A dinged a star because this did not appear to be genuine toyota parts based on the packaging, however it worked just fine.
Competitiveness
Overall, i would say this is an awesome product and i didn't need to go to the dealership to buy it.
Overview
- How are reviewers describing this item?
rear, differential, fit, mod and great. - Our engine has profiled the reviewer patterns and has determined that there is high deception involved.
- Our engine has analyzed and discovered that 51.6% of the reviews are reliable.
- This product had a total of 461 reviews as of our last analysis date on Jul 9 2024.
Helpful InsightsBETA
Posted by a reviewer on Amazon
Used toyota union 9040451319 on toyota tacoma rear diff relocation
Posted by a reviewer on Amazon
I relocated breather to behind tail light assembly on the driver side
Posted by a reviewer on Amazon
The breather is now located at around top edge height of rear wheel well opening so it should be better protected
Posted by a reviewer on Amazon
Bought this as part of the differential breather relocation on a 3rd generation tacoma
Posted by a reviewer on Amazon
It went in good and tight and didnt snap off
Posted by a reviewer on Amazon
If u enjoy unions then this is for you
Posted by a reviewer on Amazon
Nothing like genuine oe toyota parts
Review Count History
Price History
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