2003 Ford Explorer Remanufactured Engines

Enhance and Protect Your 2003 Ford Explorer with Quality Remanufactured Engines

Maintaining the performance of your 2003 Ford Explorer starts with choosing the right parts, and high-quality Remanufactured Engines help ensure a reliable and efficient vehicle. At Advance Auto Parts, we offer Remanufactured Engines specifically for the 2003 Ford Explorer, ensuring a perfect fit and lasting durability. Choosing to shop with Advance Auto Parts means you’re making a smart decision to prioritize both quality and reliability for your vehicle.

Affordable and Reliable Remanufactured Engines for Every Budget

Finding affordable, quality Remanufactured Engines is easy at Advance Auto Parts. With prices starting as low as $2,942.99 and an average price of $3,381.91, you can choose one that fits your budget while delivering the quality you expect. Our Remanufactured Engines are competitively priced, ranging from $2,942.99 to $3,839.99, so you get value without compromising on strength or reliability.
Please Select your Vehicle to See Exact Fit Parts

Remanufactured Engines for Your 2003 Ford Explorer

Spartan – Engine Long Block; Ford 4.0 05-07 Engine (Part No.DFDJ)

Engine Long Block; Ford 4.0 05-07 Engine

from

$3632.99
Your remanufactured engine is tested in several specific ways after being assembled; Multiple Pressure tests. Each component is carefully checked after being cleaned to see if cracks or other defects exist in the casting. After being assembled, we pressure

Product Features:
  • Each engine we remanufacture is essentially reverse engineered – in part to discover original factory deficiencies. If possible, our seasoned R&D personnel & QC experts make improvements. Why shouldn’t our engine last longer than your First !
  • Engines come with installation gasket set & oil pump unless noted otherwise. If we have important installation information it will be included on tags or in the paperwork packaged with your engine.
  • Engines are securely packaged in a recyclable container that will also protect your core on the return trip. Our nationwide warehouse network means speedy delivery.
  • Each engine is remanufactured with quality OE level components not “white” box generic parts that may or may not satisfy your needs and expectations. When you use the best you get the best results and satisfaction.
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Spartan – Engine Long Block; Ford 4.6 02-03 Engine (Part No.DFDE)

Engine Long Block; Ford 4.6 02-03 Engine

from

$3839.99
Your remanufactured engine is tested in several specific ways after being assembled; Multiple Pressure tests. Each component is carefully checked after being cleaned to see if cracks or other defects exist in the casting. After being assembled, we pressure

Product Features:
  • Each engine we remanufacture is essentially reverse engineered – in part to discover original factory deficiencies. If possible, our seasoned R&D personnel & QC experts make improvements. Why shouldn’t our engine last longer than your First !
  • Engines come with installation gasket set & oil pump unless noted otherwise. If we have important installation information it will be included on tags or in the paperwork packaged with your engine.
  • Engines are securely packaged in a recyclable container that will also protect your core on the return trip. Our nationwide warehouse network means speedy delivery.
  • Each engine is remanufactured with quality OE level components not “white” box generic parts that may or may not satisfy your needs and expectations. When you use the best you get the best results and satisfaction.
See More

Spartan – Engine Long Block; Ford 4.0 02-07 Engine (Part No.DFDH)

Engine Long Block; Ford 4.0 02-07 Engine

from

$3549.99
Your remanufactured engine is tested in several specific ways after being assembled; Multiple Pressure tests. Each component is carefully checked after being cleaned to see if cracks or other defects exist in the casting. After being assembled, we pressure

Product Features:
  • Each engine we remanufacture is essentially reverse engineered – in part to discover original factory deficiencies. If possible, our seasoned R&D personnel & QC experts make improvements. Why shouldn’t our engine last longer than your First !
  • Engines come with installation gasket set & oil pump unless noted otherwise. If we have important installation information it will be included on tags or in the paperwork packaged with your engine.
  • Engines are securely packaged in a recyclable container that will also protect your core on the return trip. Our nationwide warehouse network means speedy delivery.
  • Each engine is remanufactured with quality OE level components not “white” box generic parts that may or may not satisfy your needs and expectations. When you use the best you get the best results and satisfaction.
See More

Spartan – Engine Long Block; Ford 4.0 01-03 Engine (Part No.VFKE)

Engine Long Block; Ford 4.0 01-03 Engine

from

$3439.99
Your remanufactured engine is tested in several specific ways after being assembled; Multiple Pressure tests. Each component is carefully checked after being cleaned to see if cracks or other defects exist in the casting. After being assembled, we pressure

Product Features:
  • Each engine we remanufacture is essentially reverse engineered – in part to discover original factory deficiencies. If possible, our seasoned R&D personnel & QC experts make improvements. Why shouldn’t our engine last longer than your First !
  • Engines come with installation gasket set & oil pump unless noted otherwise. If we have important installation information it will be included on tags or in the paperwork packaged with your engine.
  • Engines are securely packaged in a recyclable container that will also protect your core on the return trip. Our nationwide warehouse network means speedy delivery.
  • Each engine is remanufactured with quality OE level components not “white” box generic parts that may or may not satisfy your needs and expectations. When you use the best you get the best results and satisfaction.
See More

Premium Drive Train – Premium Remanufactured Engine Long Block Assembly (Part No.L4001WBS)

Premium Remanufactured Engine Long Block Assembly

from

$3216.99
Each block is magnafluxed for cracks and checked for any visible damage to the block or threaded holes before being repainted. Five CNC machining centers are programmed to precise specifications that meet or exceed those established by the OEM for each engine block. After the engine block is bored, decked, and chamfered, each cylinder is honed with the specified OEM cross-hatch pattern. All gauging of all cylinder bores for diameter and roundness after final honing operation. Quality audits are performed to ensure that the cylinder meets specifications. All new pistons, rings and bearings are installed in every engine. One block per engine family is laid out and checked for all critical and high impact characteristics as defined in our control plans. These measurements include surface finishes, surface flatness and cylindricity in the cylinder bores. Every head is resurfaced and completely inspected for any visible damage or cracks to the casting or threaded holes. Valve seats are machined, inspected and replaced if necessary. The cam bore is air gauge checked on overhead cam engines and machined if required. All new valves, seals and lifters are used in every head. All plugs and fittings are replaced with new. All head and valve assemblies are quantified for leakage. Each connecting rod is measured against OEM specifications. The piston pin bore and bearing bore are measured with air gauges for proper dimensions. New torque to yield rod bolts and nuts are installed. Crankshafts are machined on a fully automated Ju crank CNC crank grinder. All oil galley holes are chamfered and brushed after machining. Each crank is inspected for cracks, bow and all applicable run-out specs for rod and main journals. Sims Testing – All engines are cold motored and checked and measured for proper torque to turn, cylinder compression, oil flow, oil pressure and any unusual noises. All engine assemblies quantified for oil gallery, gasket, and casting leakage in the oil passageways.

Product Features:
  • 100% Magnaflux Inspection – Detects cracks invisible to the eye for superior reliability.
  • Cold Motored Sims Testing – Every engine is tested for compression, oil pressure, and proper operation before it ships.
  • New Pistons, Rings and Bearings – All critical internal components are brand new, never reused.
  • OEM-Spec CNC Machining – Ensures a perfect fit and factory-quality performance.
  • DYNAMIC ENGINE TESTING: Sims Testing – All engines are cold motored and checked and measured for proper torque to turn, cylinder compression, oil flow, oil pressure as well as monitored for any unusual noises inside the assembly.
  • Product might not be available in all states due to local laws.
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Premium Drive Train – Premium Remanufactured Engine Long Block Assembly (Part No.L4001NBS)

Premium Remanufactured Engine Long Block Assembly

from

$3216.99
Every remanufactured engine is built to OEM or better standards, undergoing rigorous inspection and machining to meet or exceed original factory specifications. The process starts with 100% magnaflux crack detection on cast iron blocks, ensuring no hidden flaws compromise durability. Each block is precisely CNC machined and cylinders are honed to exact OEM cross-hatch patterns for optimal performance. Cylinder heads are resurfaced, inspected, and fitted with new valves, seals, and lifters-either OEM remanufactured or the highest-quality aftermarket options, selected based on which offers superior durability and reliability. Comprehensive pressure and vacuum testing guarantees leak-free operation. Only 100% new pistons, rings, bearings, seals, and critical components-never recycled-are used to deliver like-new performance and long-term dependability. Before shipment, every engine undergoes cold motored Sims testing to verify compression, oil pressure, torque-to-turn, and overall mechanical integrity. The result is a remanufactured engine engineered for maximum durability, reliability, and performance you can trust.

Product Features:
  • 100% Magnaflux Inspection – Detects cracks invisible to the eye for superior reliability.
  • Cold Motored Sims Testing – Every engine is tested for compression, oil pressure, and proper operation before it ships.
  • New Pistons, Rings and Bearings – All critical internal components are brand new, never reused.
  • OEM-Spec CNC Machining – Ensures a perfect fit and factory-quality performance.
  • DYNAMIC ENGINE TESTING: Sims Testing – All engines are cold motored and checked and measured for proper torque to turn, cylinder compression, oil flow, oil pressure as well as monitored for any unusual noises inside the assembly.
  • Product might not be available in all states due to local laws.
See More

Premium Drive Train – Premium Remanufactured Engine Long Block Assembly (Part No.L4603R2E)

Premium Remanufactured Engine Long Block Assembly

from

$2942.99
Every remanufactured engine is built to OEM or better standards, undergoing rigorous inspection and machining to meet or exceed original factory specifications. The process starts with 100% magnaflux crack detection on cast iron blocks, ensuring no hidden flaws compromise durability. Each block is precisely CNC machined and cylinders are honed to exact OEM cross-hatch patterns for optimal performance. Cylinder heads are resurfaced, inspected, and fitted with new valves, seals, and lifters-either OEM remanufactured or the highest-quality aftermarket options, selected based on which offers superior durability and reliability. Comprehensive pressure and vacuum testing guarantees leak-free operation. Only 100% new pistons, rings, bearings, seals, and critical components-never recycled-are used to deliver like-new performance and long-term dependability. Before shipment, every engine undergoes cold motored Sims testing to verify compression, oil pressure, torque-to-turn, and overall mechanical integrity. The result is a remanufactured engine engineered for maximum durability, reliability, and performance you can trust.

Product Features:
  • 100% Magnaflux Inspection – Detects cracks invisible to the eye for superior reliability.
  • Cold Motored Sims Testing – Every engine is tested for compression, oil pressure, and proper operation before it ships.
  • New Pistons, Rings and Bearings – All critical internal components are brand new, never reused.
  • OEM-Spec CNC Machining – Ensures a perfect fit and factory-quality performance.
  • DYNAMIC ENGINE TESTING: Sims Testing – All engines are cold motored and checked and measured for proper torque to turn, cylinder compression, oil flow, oil pressure as well as monitored for any unusual noises inside the assembly.
  • Product might not be available in all states due to local laws.
See More

FAQs for 2003 Ford Explorer Remanufactured Engines

Which Remanufactured Engines are the top sellers for the 2003 Ford Explorer?

Out of 7 Remanufactured Engines that fit 2003 Ford Explorers, the following parts are the top sellers:
Premium Remanufactured Engine Long Block Assembly
from $3216.99
This product is not rated
Premium Remanufactured Engine Long Block Assembly
Remanufactured Engines
Engine Long Block; Ford 4.0 01-03 Engine
from $3439.99
This product is not rated
Engine Long Block; Ford 4.0 01-03 Engine
Remanufactured Engines
Engine Long Block; Ford 4.0 05-07 Engine
from $3632.99
(1)
Engine Long Block; Ford 4.0 05-07 Engine
Remanufactured Engines

How can I make sure that a part will be compatible with my 2003 Ford Explorer?

Our Ford Explorer aftermarket and OEM parts are designed specifically for the 2003 model. You can always find your specific fitment and compatibility for your 2003 Ford on an individual product page.

What is the price range for 2003 Ford Explorer Remanufactured Engines?

The range of prices of Remanufactured Engines for the 2003 Ford Explorer goes from $2,942.99 up to $3,839.99 for the most premium parts.

What is the average price of 2003 Ford Explorer Remanufactured Engines?

2003 Ford Explorer Remanufactured Engines average $3,381.91 for our selection of OEM and aftermarket parts.

Does Advance Auto Parts sell Remanufactured Engines for other Ford Explorer model years?

Yes, we currently stock Remanufactured Engines for 25 model years of Ford Explorers, from 1991 to 2017. Model years 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, and 2008 are the most popular for Remanufactured Engines purchases.

Can I get help with 2003 Ford Explorer Remanufactured Engines orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Ford Remanufactured Engines and more.

What is your return policy for Ford Explorer Remanufactured Engines?

Advance Auto Parts keeps returns simple. For new Ford Explorer Remanufactured Engines and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.