HDJ100 ABS unit

[Yves1970]

Hi,

I'm told that these eventually fail. However, these units cannot be had from Toyota anymore. So what the consensus to do here? Get aftermarket parts? If so, which ones or does the entire unit fail?

 

[Yves1970]

bump

 

[Kamran Khan]

The whole unit may fail at some point, but it is repairable by replacing the rubber seals or O-rings. However, most of the time, it is the brake booster pump motor that eventually fails, depending on its age. Luckily, replacement motors made in China are widely available all over the internet.
Here is the video how to remove it. I would suggest don't fix it, if it's not broken. Price of Chinese motor is from 40 USD to 80 USD. A genuine motor is with the assembly is listed for 824 USD on eBay. Here the eBay Link

 

[Yves1970]

The whole unit may fail at some point, but it is repairable by replacing the rubber seals or O-rings. However, most of the time, it is the brake booster pump motor that eventually fails, depending on its age. Luckily, replacement motors made in China are widely available all over the internet.
Here is the video how to remove it. I would suggest don't fix it, if it's not broken. Price of Chinese motor is from 40 USD to 80 USD. A genuine motor is with the assembly is listed for 824 USD on eBay. Here the eBay Link

Thank you. Happen to have a link for the seals and o-rings you mentioned?

 

[Kamran Khan]

Search for the part number 0449360330. Here is the Link to brake master cylinder part numbers. And here is the pdf document for dissembled brake master cylinder.

 

[thibaut]

Well, the unit as a whole is still available. But Aoyama won’t ship outaide of Japan due to their courrier company not being comfortable with the item.
You can get the cylinder itself. There are specialists that will do a restoration job if you ship your old unit. Depends on country and circumstances.
As the car is in France, I founds local guys that were selling the pump and vacuum unit. I got it all bolted into the ‘hydraulic’ side of things.
If you think the brake feel isn’t great, start with the servicing kit (a piston and a few o rings) and fresh brake fluid.

 

[Yves1970]

Does the master cylinder need replacing most of the time or just the piston and seals? I seem not to be able to get the master seperately and the whole system is discontinued apparently. I can get the seals, motor and accumulator apparently. The accumulator is the part that the shippers are worried about.