Jump to content
The mkiv Supra Owners Club

SRD 170amp Alternators

Lee P

Recommended Posts

With all the extra electronics we are putting in the cars (audio, fans, twin pumps ect) its a good idea to uprate the alternator to cope


Also with the original units now 15+ years old they are getting old and tired


We now offer an uprated unit, these are brand new uprated alternators made for us by Mechman in the USA.


Spec is:


170 amp High Output S series alternator

twin rectifier plates

12 huge heavy duty diodes

hairpin stator construction for un-matched low RPM output and durability.



Installation is a direct bolt in, the stock belt can be used, and the unit accepts the factory Toyota alternator harness. In high current draw applications we recommend upgraded cabling.


170 amp £320 (£390 polished)



Prices are plus £15 delivery to mainland UK











Edited by Lee P (see edit history)
Link to comment
Share on other sites

Hi Lee- when would you recommend somebody opting for the 200amp instead of the 160amp?


All depends on how much equipment you are running really.


If you have alot of stuff turned on at the same time then it can add up to a lot.


You can roughly work it out by adding up the amperage of the equipment that you are likely to have on together.





Fuel pumps



Link to comment
Share on other sites

  • 3 weeks later...
  • 4 months later...
  • 3 years later...
  • 1 month later...
  • 1 year later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.