2003 Used Ford Engines For Sale

213
verified 2003 Ford engines
Trustpilot
Customer Reviews
Up to 3 yrs
extended warranty available
Photos before
shipment

2003 Used Ford Engines For Sale

213 verified used 2003 Ford engines in stock across 19 models — the 7.3L Power Stroke in its final year beside the new 6.0L, the 6.8L V10, the 5.4L, both 4.6L modular V8s and the Explorer's 4.0L SOHC V6. Every unit is VIN-matched, compression-tested by ASE-certified technicians, photographed before shipment, and backed by a warranty plus 30-day money-back. Free freight nationwide.

●
Warranty On Every Unit
●
Photos Before Shipment
●
ASE-Tested & Verified
●
Free Nationwide Shipping
●
30-Day Money-Back
●
Secure SSL Checkout

2003 Ford Engine Families

Which engine sits under which 2003 Ford, and how many of each we hold today.

Engine family Fits (2003) In stock
6.0L Power Stroke V8 Turbo-Diesel Super Duty F-250 to F-550, Excursion (VIN P) — by calibration ID 57
7.3L Power Stroke V8 Turbo-Diesel Final year — Super Duty, Excursion, E-350 to E-550 (VIN F) 34
4.0L SOHC Cologne V6 Explorer, Sport, Sport Trac, Ranger (VIN E gas, VIN K flex fuel) 32
5.4L Triton V8 2-Valve F-150, Expedition, Super Duty, E-150 to E-450 (VIN L) 21
6.8L Triton V10 Super Duty, Excursion, E-350 to E-550 (VIN S) 18
4.6L Romeo V8 2-Valve Crown Victoria, Explorer, Expedition, vans, F-150 (VIN W) 11
Alternative-Fuel V8 (CNG and bi-fuel) 5.4L CNG (VIN M) and bi-fuel (VIN Z), Crown Victoria 4.6L (VIN 9) 6
2.0L Four-Cylinder Focus Zetec, Split-Port and SVT, Escape, Escort ZX2 6
3.0L Vulcan OHV V6 Ranger and Taurus, gasoline and flex fuel (VIN U, V, 2) 6
4.6L Windsor V8 2-Valve F-150 only (VIN 6) — 6-bolt and 8-bolt flywheel, engine ID 2G-912 4
4.2L Essex V6 F-150, E-150, E-250 (VIN 2) 4
5.4L Supercharged V8 F-150 Lightning and Harley-Davidson (VIN 3) 3
4.6L Mustang V8 SOHC GT (VIN X) and DOHC Mach 1 (VIN R) 3
2.3L Duratec I4 Ranger (VIN D) and Focus PZEV (VIN Z) 3
3.0L Duratec DOHC V6 Taurus (VIN S) and Escape (VIN 1) 2
3.8L Essex V6 Mustang base and Windstar (VIN 4) 2
3.9L DOHC V8 Thunderbird (VIN A) 1
Total 213

Other Ford Model Years

Every model year we hold Ford engines for. Years without a link are in stock but have no year page yet — text us your VIN.

20242023202220212020201920182017201620152014
2013
20122011201020092008200720062005200420032002200120001999199819971996199519941993199219911990

Why Buy a 2003 Ford Engine from Auto Power Source

2003 is the diesel changeover year, and it is the reason this page is the largest in our Ford range. The 7.3L Power Stroke finished its run and the 6.0L replaced it mid-year, so both are in stock — and the 6.0L is not identified by VIN P alone. Each listing carries an engine calibration ID (the DG-041, DG-042 and DG-044 series, and the WG and 3G low-emissions series), split again by automatic or manual transmission, by emissions certification, and on the F-450 and F-550 by Chassis Cab or not. Two 6.0L units with the same VIN digit are routinely different part numbers.

The 4.6L has the same problem from a different direction: Ford built it at two plants that year. Romeo units are VIN W and run across the Crown Victoria, Explorer, Expedition and the vans; Windsor units are VIN 6 and appear only in the F-150, where they split again into 6-bolt and 8-bolt flywheel versions under engine IDs 2G-912-AA through BB. The bolt count decides whether the engine will mate to your transmission at all, so it is worth settling before you order.

2003 is also a year of last and first appearances — the final Explorer Sport two-door and Escort ZX2, the supercharged 5.4L in the Lightning and Harley-Davidson F-150, the Mustang spanning the 3.8L Essex, the SOHC GT and the DOHC Mach 1, and the last tenth-generation F-150 before the 2004 redesign. Every unit here is pulled from a low-mileage donor vehicle, cataloged by VIN, and run through our six-step inspection before it ships free on a pallet anywhere in the continental U.S., with 30 days to return it for any reason.

📱 Fastest way to match: text us your VIN, get options in minutes.Text Your VIN →

Your 2003 Ford Engine Options: Compared

Most 2003 Ford owners face four real choices when the engine fails:

← Swipe sideways to see all columns →
Option Cost Reliability Warranty Fitment Match
Used OEM (this collection) $$$ Best Value High — tested Included VIN-matched
New OEM (dealer) $$$$$ 2-4× more High Manufacturer Exact
Aftermarket / Reman $$$$ Varies 6-12 mo May adapt
Junkyard $ Cheapest Unknown None DIY

Tested used OEM hits the sweet spot — same engineering as new, fraction of the cost.

2003 Ford Engine Buying Guide

5 things to verify before buying a used 2003 Ford engine:

  1. On the 6.0L diesel, read the calibration ID, not just the VIN. Listings carry DG-041, DG-042, DG-044 or the WG and 3G low-emissions codes, plus AT or MT and the emissions tier. The ID is what makes two VIN P engines different units.
  2. On the 7.3L, check the exhaust pressure valve and emissions tier. Rows are split Federal, Low Emissions or High Altitude, each with and without the exhaust pressure valve. They are separate part numbers.
  3. The 4.6L comes from two plants with two flywheel patterns. Romeo is VIN W; Windsor is VIN 6 and F-150 only, split 6-bolt and 8-bolt flywheel under engine ID 2G-912. The wrong bolt count will not mate to your transmission.
  4. EGR matters on the gas V8s and V10. The 5.4L and 6.8L V10 are listed with and without the EGR valve, and the Crown Victoria 4.6L with and without an oil cooler.
  5. Confirm the match with your own VIN before you order. Your VIN settles the engine code, drivetrain and build split in one step. Text it to +1-307-441-5554 and we will confirm in writing exactly which unit fits your vehicle before you pay.

Our ASE-certified technicians verify every one of these points against your VIN before any unit ships.

📞 Need help choosing the right 2003 Ford engine? Talk to our team live.Call 1-877-313-8995

Frequently Asked Questions

What is the warranty on a used 2003 Ford engine?
Every 2003 Ford engine ships with a warranty included, printed on each product page. Extended coverage of up to 3 years is available at checkout.
What does ASE-tested mean?
ASE-certified technicians compression-test every cylinder and run a leak-down evaluation, then noise and smoke verification, a full visual inspection, and multi-angle photography before shipment.
How long until delivery?
Prep and ship is 3-5 business days, transit 2-3 business days after dispatch by freight carrier.
Can I see photos before I buy?
Yes. Multi-angle photos of the actual unit are sent before payment. If you do not approve them, you get every dollar back.
Do I need my VIN?
Yes, and for 2003 it matters more than most years. The 8th digit separates the 7.3L and 6.0L diesels, the Romeo and Windsor 4.6L and the CNG V8s; on the 6.0L the calibration ID narrows it further. Text your VIN to +1-307-441-5554.
Which 2003 Ford models do you stock?
Super Duty F-250 to F-550, Excursion, F-150, E-150 to E-550, Explorer, Ranger, Expedition, Crown Victoria, Mustang, Taurus, Focus, Escape, Windstar, Thunderbird and Escort.
Why cheaper than dealer new?
Used OEM from low-mileage donor vehicles — the same Ford engineering at a fraction of dealer pricing.
When can I reach customer service?
Call 1-877-313-8995 or text +1-307-441-5554 during the hours in the site footer, or email info@autopowersource.com.
🏆 Earn $500 with Our Rewards Program
Every Ford engine you buy earns rewards. 10 orders (yours or referred) = $500 cash credit. Silver, Gold, and Platinum tiers with discounts, priority support, and private inventory access.
See How Rewards Work →
100K+
Engines+Transmissions In Stock
0%
fitment-related returns
All 50
states covered, free freight
36
brands covered

Our 6-Step Inspection & Shipping Process

Every 2003 Ford engine we ship has been through these six steps:

1. VIN-Matching
We match the donor VIN to your VIN to confirm engine/transmission code, emissions calibration, and drivetrain fit.
2. Tested & Verified
ASE-certified technicians compression-test every cylinder and run leak-down evaluation on engines. Transmissions are Shift-Tested through all gears.
3. Noise & Smoke Verification
Units are run to verify normal mechanical sound and clean operation — catches internal wear static tests miss.
4. Visual Inspection
Every accessible component is inspected: turbos, manifolds, valve covers, housings, accessories, sensor harnesses.
5. Photograph & Catalog
Multi-angle photos sent to you BEFORE we ship for your approval.
6. Palletize & Ship
Strapped on a heavy-duty wooden pallet, shipped via freight at no charge.

Our Photos-Before-Shipment Guarantee

Before any engine leaves our warehouse, we send you multi-angle photographs. You approve. If you do not approve, you get every dollar back — no questions, no restocking fees, no return freight charges. On top of 30-day money-back and the warranty included with every unit. Browse all 213 2003 Ford engines below.

✉ Email Us at info@autopowersource.com
No match? Text VIN →