ult:
Nope. And it's probably not replaceable period. I hear tell that rebuilding a steering rack is a hit or miss proposition at best. Lowlander posted some nice tidbits, He replaced his rack. YIKES!

Good luck just the same. Let us know how it turns out with a follow-up.
All the best, Haya....

Edit: Be4sure it is in fact a seal leak. The power steering lines usually fail first and can drip down onto the rack. Check those lines closely.....

 

Before you even consider touching that rack, flush your power steering system with MaxxLife transmission fluid. It contains seal conditioners that will swell your seals and possibly eliminate your leakage. Unless your leak is coming from another source, as Haya mentioned.

 

M, good to excellent point. I use that Maxlife too. Tastes like strawberry. Hehe.

 

Me and Ralph Spoilsport replaced our racks, one helluva job but it solved the problem. I had leaks from both of the inner tie rod boots, and all of the seals - then a transfer line failed. I’m assuming your rack isn’t as bad, so a flush may buy you some valuable time. For me, it was too late and a year later I had to redo the rack. After that, my pump stopping whining and my power steering was returned.

I got the rack from a low-mileage 2003 4-cyl model with the towing package at the junkyard. Out of all of the cars, I would try to find a 2007 4-cyl tow package model as these models got the optional power steering cooler. This cooler will help give the steering rack an easier life. I installed it onto my V6 using 3 feet of transmission hose and it has been working great - I highly recommend getting one if you can. My reservoir is not as hot (evident by the marker) as much after a drive.

 

Me and Ralph Spoilsport replaced our racks, one helluva job but it solved the problem. I had leaks from both of the inner tie rod boots, and all of the seals - then a transfer line failed. I’m assuming your rack isn’t as bad, so a flush may buy you some valuable time. For me, it was too late and a year later I had to redo the rack. After that, my pump stopping whining and my power steering was returned.

I got the rack from a low-mileage 2003 4-cyl model with the towing package at the junkyard. Out of all of the cars, I would try to find a 2007 4-cyl tow package model as these models got the optional power steering cooler. This cooler will help give the steering rack an easier life. I installed it onto my V6 using 3 feet of transmission hose and it has been working great - I highly recommend getting one if you can. My reservoir is not as hot (evident by the marker) as much after a drive.

What is the consensus on rebuilt racks? Rock Auto has some for $300 with at least a 3/36 warranty.

 

If I didn't get my junkyard rack and cooler for so cheap (53 dollars Canadian) I would likely get a Cardone rack from Rockauto. People seem to have the best luck with those as far as I can tell, and Ralph ended up with one of them as well. Unfortunately, he received a defective one that may have been damaged in shipping, but thankfully he spotted the torn boots and Rockauto did a fantastic job at quickly getting him a refund - free of charge incl shipping. The new rack is in his car and is working great so far. As for my junkyard rack. It is holding up wonderfully 9 months later with not a single leak anywhere.

This is also a great chance to upgrade to the 2nd gen 2008-2019 Highlander / 2010-2015 RX350 26mm front sway bar for some flatter cornering up front, with the benefit of no extra understeer (on my AWD). I did this 9 months ago during my rack replacement and I couldn't have been happier - wish I did it sooner. There's one on eBay right now for 30 dollars which is a fantastic deal. May be worth considering if you go with a new rack, because it needs to come out anyway. If you want to go down this path, you will need 2013-2018 Lexus ES end links from Rockauto as well.