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Suits: HZJ70, HZJ71, HZJ73, HZJ74, HZJ75, HZJ76, HZJ77, PZJ70, PZJ77, FJZ70, FZJ71, FZJ73, FJ73, FJ75, FZJ75, FZJ78, FZJ79... and so on. From 01-1990 to 12/2006
Pro Tip: The clutch master cylinder for the RHD BJ70, BJ71, BJ73, BJ74 is Obsolete! (as of 2009)
This part can be used to replace worn out clutch master cylinder units on the vacuum boosted BJ70, BJ71, BJ73, BJ74 Series RHDs, where the booster mounts behind the firewall, as the clutch masters for those units are no longer in production and rebuild kits often do not work at all with worn or pitted bores.
Note: When retro-fitting this part on earlier models, the heat shield and fluid tube need to be located a bit differently, but the bolt-up and function of this cylinder works perfectly.
Pro Tip 2: Ensure the push rod lengths are both set according to the Factory Service Manual specifications. Numerous clutch function problems can be pointed back to not setting the booster push rod length properly after installation of a new master cylinder.
Note 2: you should consider replacing the slave cylinder at the same time.
The HZJ part number is: 31470-60161
The BJ74 part number is: 073-001217
Toyota part numbers for HZJ7x Series:
Toyota part numbers for BJ7x Series:
Aisin - Made in Japan
update 2019 11 18