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Four Seasons 84543 Heater Fitting

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$13.02

$ 6 .99 $6.99

In Stock

About this item

  • Four Seasons 84543 Tee Heater Fitting
  • Part number: 84543
  • Package Weight: 0.200 pounds
  • Package Dimensions: 3.81 H x 10.16 L x 10.16 W (centimeters)


Four Seasons 84543 Heater Fitting


Maximus (AZ)
August 16, 2025
The original heater Tee hose connectors are plastic on the 100 Land Cruisers, therefore, it's just a matter of when, not if they fail. You will leak coolant and can potentially get stranded. So please inspect them, and if they look or feel fragile/brittle, you probably want to replace them. These are metal, so they will last a long time. Only thin is, their diameter is not exactly the same, so you might need to replace the clamps.
Wyatt
August 4, 2025
These are a great replacement for the plastic fittings that come stock. My plastic fittings literally fell apart while replacing them. I would recommend purchasing replacement hose clamps. This new metal T-fitting is a few millimeters smaller (on every measurement) than the stock fittings. These led to a trip to Lowes after seeing that my coolant was spitting out everywhere.
Taylor
July 23, 2025
Did not work for 06 Sequoia coolant Ts. Leaked immediately
MuNaught
May 8, 2025
I got these on the recommendation from the ih8mud forums, but they are not the correct size, they are smaller than the OE plastic tees. Clamping them down requires excessive compression of the hoses beyond typical. This is no fault of the part itself.
Kimberly A Comeau
April 28, 2025
So daughter blew a heater tee in 2005 LX 470. Has bought these as a replacement because it is a 17 year old vehicle. Put new tee in but could not get tight seal with old clamps, new clamps or aftermarket clamps. Left my daughter stranded again. Ended up running and getting the crap plastic ones from Lexus again. Worked perfect and sealed with no leaks. Do not recommend for LX 470!
Alex
March 24, 2025
This tee is not designed for 100 series LC/LX470, and the diameter of the nozzle is about 2.5mm smaller comparing to the OE one. You will have to find smaller hose to connect this tee, which makes it difficult to install/remove the hose from the car.Also, comparing to the SS tee I got from other sources, the quality of this tee is at lower level.
Tophmate
March 22, 2025
As described and made to spec
Wayne Miller
February 15, 2025
I put two of these in place of the plastic ones in my 06 sienna with 210,000 miles. The plastic ones were becoming noticably brittle. These tees are located underneath the air box. I think it has something to do with the heater core, but if it breaks, you're gonna overheat because your antifreeze will leak out. This is one of the very few things that Toyota made cheaply on my vehicle. Well, this and the plastic thermostat housing
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