7.3L Powerstroke HEUI Injector (AA, Single-Shot) | Alliant Power AP63800AA New, 1994–1998

$394.97
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This will also add the following products to your cart:

  • Core Charge - 7.3L Powerstroke Injector AP63800AA (Refundable) - $100.00

View Core Charge & Return Policy

OE-new AA single-shot HEUI injector for the OBS 7.3L — 1994–1998 F-Series and E-Series, plus the Navistar T444E. This is the original single-shot design that came before the AB split-shot, and it is the correct injector for these trucks. New, not remanufactured: fresh solenoid, plunger and barrel, with no rebuild history — which matters on a truck that is now thirty years old.

Part number AP63800AA
Brand Alliant Power
Condition New (OE new, not remanufactured)
Application 1994–1998 Ford 7.3L Powerstroke (single-shot / Federal) and Navistar T444E — AA injector
Warranty Alliant Power factory warranty on this unit. On anything we remanufacture in house: 1 year, 30 days on electrical components
Core charge Refundable $100.00, refunded in full when we receive your rebuildable core

Fits / Applications

  • 1994–1998 Ford F-250/F-350 and E-Series 7.3L Powerstroke (single-shot, Federal emissions)
  • California-emissions 7.3L trucks 1994–1996, and select 1997–1998 E-Series vans
  • Navistar T444E 7.3L in medium-duty trucks and buses
  • Single-shot AA code — not interchangeable with the AB split-shot; we confirm from your VIN or build date before shipping

Cross Reference: Part Numbers This Covers

AP63800AA  ·  FI-2-RM  ·  F4TZ-9VE527-AARM  ·  F81Z-9E527-DRM  ·  F7TZ-9E527-ARM

New or Reman?

Both fit the same trucks and carry the same core. A new unit has zero hours on it and no rebuild history, which is the safer bet on an OBS truck you intend to keep. A remanufactured unit is rebuilt to the original specification and end-of-line tested, and it is the value option when you are doing all eight at once. We stock both and will tell you honestly which one fits your situation. Prefer reman? See the remanufactured AP63900AA.

Why do I see this injector cheaper online?
Short answer: it is usually not the same part — and on a 7.3L you pay for that twice in labor. Read why ↓

Search any OE number and eBay, Amazon and a dozen storefronts will show it well under dealer cost, sold by outfits with no name, no address and no phone number. We lose business to those listings every week — and we see a lot of them come back through our shop. Here is what is actually different.

  • The part number proves nothing on its own. Counterfeit injectors and pumps are stamped with the same OE numbers as the real thing, in housings cast to look identical. The number in the listing title tells you what the seller claims it is, not what came off an OE line.
  • “Remanufactured” is not a regulated word. A genuine reman unit is stripped to bare components, has its wear parts replaced — nozzle, plunger and barrel, solenoid, seals — and is then run on a calibration bench until it meets the original flow and response spec. A cheap one is very often cleaned, resealed, painted and shipped. Both get called remanufactured.
  • No full teardown, so no idea what is worn. A proper rebuild means the unit comes apart completely and every part gets inspected and measured against spec — not just the ones that are obviously bad. Skip the teardown and you are reusing worn internals inside a freshly painted housing. It will run on the truck. It will not last.
  • No factory-spec bench load testing. A unit is not finished until it has been run under load on a test bench and made its numbers across the range, not just at one easy point. That bench time is most of what you are paying for. Sellers working on price cut it first, because nobody can see it in a photo.
  • The warranty has to be honored by someone. Everything we remanufacture in house carries a one-year warranty, with 30 days on electrical components. Parts we supply as an authorized dealer carry the manufacturer’s own warranty. Either way you call us, a real shop in California, and we sort it out. A marketplace warranty usually means shipping the part overseas at your own cost and hoping for a reply.
  • No core program. We credit your rebuildable core back in full. Discount sellers generally will not take one, so the gap narrows the moment you account for the core you are now stuck holding.
  • The part is the cheap part of this job. On a 7.3L you are pulling valve covers and working under the oil rail. On a 6.7L the cab may have to come off. Doing that labor twice because one bargain injector failed costs far more than the difference you saved on all eight — and a failing injector can wash a cylinder or put debris through the fuel system on its way out.

We are an authorized dealer and a working fuel-injection shop — we have been rebuilding and testing this hardware in Woodland since 1993, and the people who answer the phone are the people who run the benches. Not sure this is the right part for your engine? Call us with your serial number before you order and we will confirm it. Send your rebuildable core back and the core charge is refunded. And if a price somewhere else looks too good, call 530-668-0818 and we will tell you straight whether it is a deal or a problem.

Why Buy From Valley Fuel Injection

We are a diesel fuel-injection and turbocharger shop in Woodland, CA — rebuilding pumps, injectors and turbos on our own benches since 1993, not a drop-ship storefront. When you call, you talk to the people who test these units. Not sure which version your engine takes? Call us with your engine serial number before you order and we will confirm it — that check is free and takes a couple of minutes.

Not sure the injectors are the problem? We flow-test and diagnose 7.3L injector complaints in-house — see our injector testing service before you buy eight of anything.

In Stock, Ships Free:
Ready to order online and ships free ground in the lower 48 states. A refundable $100.00 core deposit is added at checkout and refunded in full when we receive your rebuildable core. Questions on fitment? Call 530-668-0818.

Pricing covers the unit itself. Any applicable sales tax and the refundable core charge are additional; ground shipping in the lower 48 is free. Buying tax-exempt? Qualifying diesel repair shops, fleets, farms, and agricultural operations can purchase tax-free. Set up tax-exempt purchasing once and every qualifying order is tax-free going forward.

7.3L Powerstroke HEUI Injector (AA, Single-Shot) | Alliant Power AP63800AA New, 1994–1998
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