I'm in the market to replace the injectors on the 1984 300DT. I have three choices:

1. Local diesel shop can check the pop pressure/operation of injectors I purchsed off Ebay.

2. Purchase new Bosch injectors (most likely made in India).

3. Purchse Delphi remanufactured injectors which come with a one year twelve month warranty. This option requires the posting of a core charge.....

Question; how many cycles/years are Bosch injectors good for?