2003

2001 – 2004  Chev/GMC Duramax 6.6L Oil Cooler

Looking for a solution for your clogged oil cooler? Upgrade your 6.6L Duramax Oil Cooler today with DFC Diesel! Designed for 2001 – 2004 models, the 6.6L Duramax oil cooler can be used in the LB7, LLY, LBZ, and LLM.

The factory Duramax oil coolers are known for clogging from debris or carbon deposits in the engine and leaking from seals and connections, resulting in reduced coolant flow and contaminated engine oil. 

We highly recommend replacing your 6.6L Duramax oil cooler if your engine has a bearing or complete engine failure.

Our Duramax oil coolers are designed for increased durability in towing and hauling applications. The part design and manufacturing exceed OEM standards. Each part is produced with quality steel and aluminum for optimal performance in harsh operating conditions. Request a quote today to upgrade your Duramax 6.6L oil cooler!

Superior Performance with the LB7 Duramax Long Block

The LB7 Duramax long block is a trusted choice for those seeking a reliable and powerful diesel engine. Engineered for smooth performance and longevity, each LB7 long block is meticulously crafted to meet high standards.

• Enhanced Oil System: This system features an EDM oil pump shaft with a hardened dowel, which prevents slipping and ensures consistent oil pressure.
• Balanced and Smooth: Machined with near-identical weight pistons and connecting rod assemblies for a smoother, more balanced engine that minimizes road noise.
• Reinforced Internals: Comes with new pistons, rings, bearings, and rods, providing reinforced durability and performance.

If you’re in the market for an LB7 long block for sale, explore our inventory. Get the power and reliability you need with an LB7 Duramax long block.

The DFC Difference

DFC Diesel Rebuilders prides itself in being the highest quality product on the market. This is why we can back our engines with a 5 year 160,000km warranty that we stand behind.

Our engines have been re-manufactured to factory specs using all new industry recognized name brand parts that meet and exceed OEM specifications. The block has been professionally machined and bored for use with the next over-sized piston NO SLEEVES ARE USED.

DFC Diesel Rebuilders prides itself in being the highest quality product on the market. This is why we can back our engines with a 5 year 160,000km warranty that we stand behind.

Our engines have been re-manufactured to factory specs using all new industry recognized name brand parts that meet and exceed OEM specifications. The block has been professionally machined and bored for use with the next over-sized piston NO SLEEVES ARE USED.

All New OEM or equivalent pistons, rings, and gaskets are used to ensure quality and consistency of our engines. Our Re-manufactured Cylinder Heads have all new seats, guides, valves, and stem seals as well as being resurfaced and magnafluxed.

Short Block Engines include:

• Front Cover with Seal
• Rear Cover with main seal
• Oil pan
• All internal components
• Complete gasket kit for installation

All remanufactured engines are serviced with Rottler CNC machining, which guarantees high quality results.

To learn more about Rottler’s innovative, industry leading machines please visit: www.rottlermfg.com

2003 6.0L Ford Powerstroke IPR Valve for your diesel engine.

Ford 6.0L High Pressure Oil Pump. Fits 2003 to 2004 F-series & Excursion. Includes seal kit.

Ford Powerstroke 6.0L Water Pump for years 2003 – 2004