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Thumbnail Filmstrip of 7.3 Powerstroke OBS Single Stock AA Injector Images
A single replacement 7.3 OBS Powerstroke 1994 to 1997 injector.
Choose the Option that best suits your needs and budget.
Legacy Series Injectors:- New Nozzles, Plunger & Barrel Assemblies, and Seals
- 18 Month Warranty
Evolution Series Injectors:- New Nozzles, Plunger & Barrel Assemblies, and Seals
- New Soleniods
- Upgraded 24 Month Extended Warranty
Apexx Series Injectors:- 100% New
- Outstanding 36 Month Warranty
- New Nozzles, Plunger & Barrel Assemblies, and Seals
- 18 Month Warranty
Evolution Series Injectors:
- New Nozzles, Plunger & Barrel Assemblies, and Seals
- New Soleniods
- Upgraded 24 Month Extended Warranty
Apexx Series Injectors:
- 100% New
- Outstanding 36 Month Warranty
This is a stock flowing direct fit replacement single injector. It fits any OBS with a AA or AO code injector. Each injector includes new plunger and barrel internals and new nozzle. Flow tested to match OE specs and flow rates. Ready to install.
Core charge required if not sending the cores to us first. We do not charge any other fees to repair your core injectors.
Please note some of the other companies charge for bad parts on top of the sale price and do not use new plungers and barrels in their injectors. Shipping charges include a return label for your cores if you have not selected to send in cores first.
A single replacement 7.3 OBS Powerstroke 1994 to 1997 injector.
Choose the Option that best suits your needs and budget.
Legacy Series Injectors:
New Nozzles, Plunger & Barrel Assemblies, and Seals
18 Month Warranty
Evolution Series Injectors:
New Nozzles, Plunger & Barrel Assemblies, and Seals
New Soleniods
Upgraded 24 Month Extended Warranty
Apexx Series Injectors:
100% New
Outstanding 36 Month Warranty
This is a stock flowing direct fit replacement single injector. It fits any OBS with a AA or AO code injector. Each injector includes new plunger and barrel internals and new nozzle. Flow tested to match OE specs and flow rates. Ready to install.
Core charge required if not sending the cores to us first. We do not charge any other fees to repair your core injectors.
Please note some of the other companies charge for bad parts on top of the sale price and do not use new plungers and barrels in their injectors. Shipping charges include a return label for your cores if you have not selected to send in cores first.[...]
A single replacement 7.3 OBS Powerstroke 1994 to 1997 injector.
Choose the Option that best suits your needs and budget.
Legacy Series Injectors:- New Nozzles, Plunger & Barrel Assemblies, and Seals
- 18 Month Warranty
Evolution Series Injectors:- New Nozzles, Plunger & Barrel Assemblies, and Seals
- New Soleniods
- Upgraded 24 Month Extended Warranty
Apexx Series Injectors:- 100% New
- Outstanding 36 Month Warranty
- New Nozzles, Plunger & Barrel Assemblies, and Seals
- 18 Month Warranty
Evolution Series Injectors:
- New Nozzles, Plunger & Barrel Assemblies, and Seals
- New Soleniods
- Upgraded 24 Month Extended Warranty
Apexx Series Injectors:
- 100% New
- Outstanding 36 Month Warranty
This is a stock flowing direct fit replacement single injector. It fits any OBS with a AA or AO code injector. Each injector includes new plunger and barrel internals and new nozzle. Flow tested to match OE specs and flow rates. Ready to install.
Core charge required if not sending the cores to us first. We do not charge any other fees to repair your core injectors.
Please note some of the other companies charge for bad parts on top of the sale price and do not use new plungers and barrels in their injectors. Shipping charges include a return label for your cores if you have not selected to send in cores first.
5/5 Stars out of 8 Reviews
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Jeremy S (Augusta GA) | May 1st, 2025
Swapped all 8 injectors with reman stock injectors. Arrived in a few days and engine is running like new. Looks like there was internal oring erosion causing oil leaks of varying severity with #7 being the worst.
Curtis Ayers (Jonesville,NC) | November 21st, 2024
Great service, shipped out the day I ordered it and had it in 2 days. Came with a prepaid return shipping label for the core, which I received credit for within a week from the day I shipped it back. I only replaced one injector and it's been 3 weeks and it's been running fine. Thanks Full Force Diesel Performance
Daniel Willmann (Spring Branch Texas) | May 30th, 2024
As always parts are shipped and arrive promptly. I�m never worried about the warranty because the parts quality these guys put out is top notch and they stand behind the product. Bought just one of these to fix a dead one on a 1995 and it worked perfectly, runs like a champ now.
Jeff (Seattle Washington) | September 20th, 2023
I had all 8 injectors rebuilt, but when I got the engine started there was a definite miss, so I pulled the connector s to the injectors off one at a time while tye engine was running and found that my number 6 injector wasn't firing and decided to order a rebuilt injector from full force, I had heard good things about them, so I ordered one injector. It showed up quickly, I installed it, and now my 7.3 is running very well ..not sure why the original rebuilt injector wasn't firing, but the rebuilt injector from full force did the trick! I will definitely order more parts from them in the future!
Lonnie Hill (Smithville, TX) | July 15th, 2023
This injector performed amazingly. I will always come to FullForce for my OBS 7.3 parts from now on.
Proposition 65 Warning Information -
P65Warnings.ca.gov
Fits: Universal
Fits: 7.3 Powerstroke 1994-2003
Fits: 7.3 Powerstroke 1994-2003
Fits: 7.3 Powerstroke 1994-2003
