im taking caution thats what im scared of lol thank yous for the reply

So, I have read this entire post several times as I have been having issues with the vacuum actuators on my 1990 300D for months. Turbo not working half the time, AC not staying cold, rough shifts, etcl, etc. Vacuum leaks are a nightmare. Changed it out this weekend and forgot to shorten the rod - wastegate was staying open. Shortened the rod tonight and car runs terrific! Great acceleration from dead stop, AC blows cold, shifts almost perfect. Thanks again for the many contributors to this post! Many thanks

I know that I'm reviving an old thread but I'm at a loss. ATP turbo no longer has access to the Garrett wastegate actuator 433489-12 or 433489-0012. I have checked with many turbo rebuilders across the US and still have not found an actuator. Does anyone know a cross reference to a similar actuator so I can get this 300D back on the road?

Send me a DM, I have the parts for this on a shelf in my garage. Sold the 300D years ago.

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JH
87' 560SL

DM sent

Hello, sorry for reviving this topic again, but I need pressure operated wastegate actuator too. I have bad all two vacuum convertors, so easiest fix would be actuator swap. Tried to write email to ATP but they said 433489-12 is no longer available. Do you know any other available solution please? Any other compatible actuator? Also I tried to find other pressure actuator, but without success. Thank you

I used part number 480009-6. I had to straighten out the actuator arm and enlarge the mounting holes in the bracket. But, it works well!

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RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

99 W210 E300 Turbo Diesel, chipped, DPF/Converter Delete. Still needs EGR Delete, 232K

90 Dodge D250 5.9 Cummins/5 speed. 400K

Gone and still missed...1982 w123 300D, 1991 w124 300D

after straightening the rod lenght was okay ? bracket can be dismounted without dismounting turbo ? Thanks for quick response, if somebody have other tested actuators please reply, it will be useful for next generations

Rod length is fine, The turbo was missing on my car, when I picked it up. the turbo was not rebuildable, so I bought a used one. Vacuum actuator and bracket were still attached. You should be able to remove the actuator bracket with the turbo on the car. I did have to use a ratcheting box type wrench to remove the bolts. Not enough room to get a socket in there.

__________________
RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

99 W210 E300 Turbo Diesel, chipped, DPF/Converter Delete. Still needs EGR Delete, 232K

90 Dodge D250 5.9 Cummins/5 speed. 400K

Gone and still missed...1982 w123 300D, 1991 w124 300D

From what I understand, you want to keep the PSI as 15 or below. The one I have begins to open at 12 and is fully open at 14. My car has no trouble cruising at 90 mph, and very little turbo lag noted when taking off from a stop. this w124 is much quicker than my w123 was.

__________________
RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

99 W210 E300 Turbo Diesel, chipped, DPF/Converter Delete. Still needs EGR Delete, 232K

90 Dodge D250 5.9 Cummins/5 speed. 400K

Gone and still missed...1982 w123 300D, 1991 w124 300D

yesterday ordered that 480009-6....it should be 12-14PSI and its closer to stock specs. Cant wait when it comes and power of car will be back. I think for 15-18PSI should be adjusted fuel on alda...

I am going to try this actuator swap on my 90 300d 2.5. What options did you buy for this waste gate?
I am guessing you need the actuator tip and the long threaded rod?
thanks,
James

Bump...is there anyone watching this thread who has done the swap and can answer some questions?

If anyone has info on a vendor & wastegate part number that is currently available, please share!

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Check out my website photos, documents, and movies!

GSXR, I guess you are the only one following this now...
I tested around with my vacuum hand pump, and the EGR, and many other devices are leaking vacuum, so I am going for it.
I think I am going to go for the actuator mentioned a few posts above. Hopefully I can make it work. I will let you know what I buy and what difficulties I have.