The Standard Option engine from Fraser Engines is built to original OEM specifications, similar to what you’d find from most online retailers (e.g., Powertrain, AutoZone, Advance Auto Parts, etc.). This option is ideal for those needing a quick solution or simply looking for a reliable engine to get their vehicle back on the road. If you’re seeking an upgraded version of this engine, we highly recommend exploring the Fraser Advantage build.
Shipping Disclaimer: If the unit is in stock at the time of purchase, delivery is typically completed within 2–3 business days.
Core Return Instructions: Once your core (old unit) is back inside our provided container and ready to be picked up please click this link to schedule your pickup: https://fraserengineco.com/core-pickup/
Product Registration: Once your Fraser product is ordered, you will need to register your warranty. To do so click here: https://fraserengineco.com/warranty-registration-form-2/
Engine Block
Cylinder Head
Gasket Set
Standard Oil Pump
This engine is built back to original OEM specifications.
The Fraser Advantage engine is the premium offering from Fraser Engines, representing our highest-quality build. These engines are exclusive to Fraser and incorporate all major Technical Service Bulletin (TSB) updates, addressing known issues found in the original factory models. Built with only top-tier components and rigorously tested before shipment, the Fraser Advantage engine is designed for those who want superior reliability and peace of mind—ensuring you get the best performance without the common problems of original versions.
Shipping Disclaimer: If the unit is in stock at the time of purchase, delivery is typically completed within 2–3 business days.
Core Return Instructions: Once your core (old unit) is back inside our provided container and ready to be picked up please click this link to schedule your pickup: https://fraserengineco.com/core-pickup/
Product Registration: Once your Fraser product is ordered, you will need to register your warranty. To do so click here: https://fraserengineco.com/warranty-registration-form-2/
Engine Block
New Updated Timing Components
New Updated Pistons
New Updated Level Lifters
New Connecting Rods
Remanufactured & Updated Cylinder Head
Premium Gasket Set
Updated Oil Pump
This engine is built back to original OEM specifications.Introducing the Trailblazer, the iconic 4.0-liter inline-six engine for Jeep vehicles spanning the years 1991 to 2007. Unleashing power with a balanced blend of performance and reliability, the Jeep 4.0 Liter Trailblazer engine has left an indelible mark on off-road enthusiasts and Jeep aficionados alike.
Designed with a robust overhead valve (OHV) configuration, the straight-six layout of the Jeep 4.0 Liter Trailblazer engine is a testament to enduring engineering. This powerhouse has been the heartbeat of Jeep models for over a decade, delivering the torque and durability demanded by off-road adventures and daily drives alike.
Originally introduced in the 1991 Jeep Cherokee, the Trailblazer became synonymous with Jeep’s commitment to rugged performance. Over the years, this engine has powered iconic Jeep models such as the Wrangler and Grand Cherokee, embodying the spirit of adventure and resilience.
As the years progressed, the Trailblazer evolved to meet the demands of modern driving. With a reputation for reliability, the engine underwent updates to enhance fuel efficiency and overall performance. The 4.0-liter engine, with its smooth power delivery, remains a favorite among Jeep enthusiasts who appreciate its legendary status and off-road prowess.
Fraser Engines, a leader in remanufactured engines, offers tailored solutions for the Jeep 4.0 Liter Trailblazer engine. Our comprehensive packages include the cylinder block, rotating assembly, cylinder head, valve train, and installation gasket set, ensuring a seamless integration into your Jeep. Emphasizing precision and quality, Fraser Engines employs advanced remanufacturing techniques, providing updates to optimize performance.
In our commitment to excellence, damaged components like crankshafts, cylinder blocks, and cylinder heads are replaced with new ones, ensuring the longevity and reliability of our remanufactured engines. Every Trailblazer engine undergoes meticulous blueprinting, and precision machining on CNC equipment guarantees adherence to or surpassing OEM specifications. At Fraser Engines, we uphold the tradition of delivering remanufactured engines that meet and exceed expectations, embodying the spirit of adventure that the Jeep 4.0 Liter Trailblazer engine is known for.
| Metric | Value |
|---|---|
| Engine family | Trailblazer |
| Displacement | 4.0 liters |
| Aspiration | Naturally Aspirated |
| Configuration & cylinders | Inline-six |
| Vehicle engine orientation | Longitudinal |
| Valve configuration | Overhead valve (OHV) |
| Assembly sites | Various locations (e.g., Toledo, Ohio) |
| Predecessor | Jeep 4.2L Inline-Six |
| Successor | None (as of 2007) |
Discover the ultimate in performance and reliability with the Fraser Advantage 4.0L Jeep engine. Known for its formidable power and enduring design, this engine is the preferred choice for Jeep owners who demand the best in both daily driving and off-road capability.
Unmatched Power and Efficiency
Powerful Performance: Experience unmatched power with the Fraser Advantage 4.0L Jeep engine, delivering 190 horsepower and 235 lb-ft of torque. This engine ensures robust performance and exceptional towing capacity, making it ideal for tackling tough terrains and challenging adventures.
Enhanced Fuel Efficiency: With advanced engineering, the 4.0L engine is optimized for maximum fuel efficiency, reducing your fuel costs and enhancing your driving range without sacrificing power.
Advanced Engineering for Lasting Durability
Superior Construction: Built to last, the Fraser Advantage 4.0L engine features high-quality materials and construction that withstand the demands of both time and terrain. Its reliability is unmatched, offering peace of mind for all Jeep owners.
Low Maintenance Requirements: Designed for durability, this engine requires less frequent maintenance, saving you time and money. Its straightforward design allows for easier access to components, simplifying repairs and maintenance.
Eco-Friendly and Economical
Reduced Emissions: The Fraser Advantage 4.0L Jeep engine meets stringent emission standards, making it a cleaner choice for the environment. Drive confidently knowing you are minimizing your ecological footprint.
Cost-Effective Operation: This engine not only saves on fuel but also on long-term maintenance costs. It’s an economical choice that doesn’t compromise on performance or reliability.
Broad Compatibility and Customization
Versatile Fit: Designed to seamlessly integrate with a variety of Jeep models, including the Cherokee and Wrangler, this engine enhances vehicle performance and capability across the board.
Customization Ready: Tailor your engine to meet specific performance needs with extensive customization options. The Fraser Advantage 4.0L engine is adaptable and flexible, ready to be tuned to your unique specifications.
Choosing the Fraser Advantage 4.0L Jeep engine is investing in superior performance, reliability, and efficiency. It’s the perfect upgrade for any Jeep enthusiast looking to enhance their vehicle’s capabilities. Contact Fraser Engines today to learn more about how this engine can transform your Jeep experience.
Fraser Engines ensures the 4.0L Jeep engine is remanufactured to the tightest tolerances, surpassing OEM standards:
A common issue with the Jeep 4.0L engine is cylinder head cracking, especially in the 0331 head (2000–2001). Fraser Engines resolves this with:
Fraser Engines optimizes the 4.0L’s valve train for maximum performance and longevity:
The 4.0L Jeep engine is equipped with an updated high-volume oil pump:
Overheating is a common concern in older 4.0L Jeep engines. Fraser addresses this with:
Fraser Engines ensures complete compatibility with factory Engine Control Modules (ECM), delivering trouble-free operation and reliable engine management. This guarantees:
The remanufactured 4.0L Jeep inline-six engine fits a wide range of Jeep vehicles, including:
Fraser Engines takes the legendary 4.0L Jeep inline-six and transforms it into an engine that performs better than new. With advanced updates, reinforced components, and modern precision, Fraser delivers unmatched power, reliability, and longevity for Jeep enthusiasts who demand the best.
Power Your Jeep with Confidence – Choose Fraser Engines.
Our journey begins with a thorough visual inspection of each engine block for casting defects. We meticulously disassemble the components, inspecting each part for damage and identifying the cause of failure. We remove oil and water passage plugs to guarantee optimal results during thermal cleaning. We select only premium castings for our marine blocks, insisting on replacements in all salt-water applications. For high-performance engines, we utilize premium cores, never employing repaired castings or sleeved blocks, preserving the authenticity of your classic car’s original block casting with our skilled technicians’ craftsmanship.
We elevate engine parts to a new level of clean with our thermal cleaning system. This process evenly distributes heat throughout the chamber, avoiding overheating or warping. Components are heated in an oxygen-deficient atmosphere, decomposing combustible hydrocarbons and leaving parts dry. We use the Ace RKE 230 oven exclusively for cast iron blocks, ensuring ash residue is effortlessly removed in the subsequent stainless steel shot blasting phase.
Our shot-blasting method employs stainless steel shot to remove surface contamination like rust, creating a smoother finish. This step is vital for detecting surface and subsurface defects during quality inspection. The peening process imparts compression strength to the metal, preparing it for a preliminary defect inspection.
We use magnetic particle inspection to detect cracks and imperfections in ferrous engine parts, ensuring the highest quality for our cast iron blocks. Before proceeding to aluminum blocks, we explain their specific cleaning, testing, and defect checking processes.
Aluminum engine blocks first encounter our AXE SW20 OS spray cleaning system, which removes all foreign material with its powerful spraying action and multi-integrated nozzles. This step is crucial for a thorough inspection.
We use ultrasonic cleaning for aluminum blocks, known as the benchmark in cleanliness. This method reaches inaccessible areas, breaking the bonds that hold small particles to surfaces. Post-cleaning, the block undergoes pressure testing.
We employ the Delta Pressure tester to double-check for pinholes after magnafluxing and dye testing, ensuring the integrity of all castings used in our products.
After a complete visual inspection, we repair minor casting defects, remove broken bolts, tap threads, and perform gasket surface repairs to minimize stock removal.
We use the RMC CNC V40 enclosed machining center for precise and versatile machining. This computerized machine measures and levels blocks, measures deck heights & cylinder bore sizes, eliminating operator error. Our machine determines Ra finish based on block type and gasket used, utilizing CBN cutters and checking surface finish with the Mitutoyo SJ-301.
The Sunnen LBB-1600 Hone, measuring accuracy within .0001″, is our choice for precision rod reconditioning and pin fitting, ensuring honed bores equal to or better than new rods. High-performance engines are fitted with ARP high-strength bolts and nuts prior to this step.
We are the first to use Rottler’s newest cylinder honing machine, ensuring the most accurate honing with cylinders finishing within .0001″ roundness and straightness. This machine continuously analyzes and corrects the bore, maintaining evolving engine designs’ critical oil clearances and machining tolerances.
After precise machining, our blocks undergo a second high-pressure wash cycle, ensuring absolute cleanliness for final assembly.
We ultrasonically clean all parts prior to assembly, ensuring the ultimate cleanliness level. This method reaches every surface and internal area, providing the cleaning force required for the most stringent standards.
Each assembler at Fraser Engines conducts a thorough visual inspection and measures parts for proper size. We fit blocks with new cam bearings, oil restrictors, relief valves, new water and oil plugs, and more. Cylinder heads are installed with new bolts and gaskets, and each cylinder’s seal integrity is checked. The final inspection by our assembly manager ensures the highest quality for your remanufactured engine.
Fraser Engines is committed to delivering engines of exceptional quality and performance. Our rigorous, detailed remanufacturing process ensures every engine we deliver meets our high standards and exceeds your expectations.
At Fraser Engines, we embrace cutting-edge technology to ensure that every engine we remanufacture meets the highest standards of quality and performance. A cornerstone of our state-of-the-art machinery is the ACF200 Cylinder Boring-Resurfacing Machine. This sophisticated equipment plays a pivotal role in our engine rebuilding process, allowing us to deliver products that consistently exceed expectations.
The ACF200 is renowned for its precision and versatility. Our skilled technicians utilize this machine’s advanced capabilities to perform intricate machining tasks with unmatched accuracy.
Incorporating the ACF200 into our remanufacturing process allows us to offer several distinct advantages:
Meticulous Cylinder Machining: Each engine’s cylinders are bored and honed to exact dimensions, ensuring optimal fit and function. This meticulous attention to detail is crucial for the engine’s performance and the vehicle’s overall efficiency.
Flawless Surface Finishing: Proper head gasket sealing is paramount in engine rebuilding. The ACF200 enables us to resurface engine blocks and cylinder heads to precise specifications, ensuring a perfect seal and reliable performance.
Assured Quality and Performance: With the ACF200’s precision, every engine remanufactured at Fraser Engines is a testament to our commitment to quality. We don’t just rebuild engines; we enhance them, setting new benchmarks for performance and reliability in the remanufacturing industry.
At Fraser Engines, we pride ourselves on being at the forefront of remanufacturing innovation, and our CNC Crankshaft Grinder stands as a testament to this commitment. As a leading remanufacturer, we boast the utilization of CNC Crank Grinders, a technology that sets us apart and reinforces our position as an industry pioneer in the United States.
Our CNC Crankshaft Grinder represents the pinnacle of modern engineering, bringing the precision of fully automated production processes, typically exclusive to OEM plants, into our remanufacturing workflow.
One-Chucking Complete Grinding: Designed for efficiency and excellence, the CNC Crankshaft Grinder performs complete grinding of crankshafts in a single chucking. This advanced approach ensures consistency and precision throughout the entire process.
Unmatched Precision and Quality: The machine’s capabilities extend far beyond the current industry standards, offering:
At Fraser Engines, we’re committed to innovation and excellence in every facet of our remanufacturing process. Our continuous pursuit of improvement and our investment in the latest technologies underscore this commitment. A shining example of our forward-thinking approach is the integration of state-of-the-art flame spray technology into our operations.
Recently, Fraser Engines has taken a significant leap forward by incorporating the latest flame spray machine into our remanufacturing facilities. Installed and fully operational since 2016, this technology marks a new era in our production capabilities.
Setting New Standards in Finish Quality: The flame spray machine elevates our ability to meet and exceed the finish requirements for engine block cylinder bores. With this technology, Fraser Engines effortlessly surpasses the industry benchmarks for remanufacturing current model year engines.
Unparalleled Precision and Durability: Flame spray technology allows us to apply coatings with unmatched precision and uniformity, ensuring each engine block’s durability and performance are maximized. This process not only enhances the quality of the finished product but also extends the lifespan of the engines we remanufacture.
| Metric | Value |
|---|---|
| Bore | 98.4 mm |
| Stroke | 86.7 mm |
| Compression ratio | 8.8:1 |
| Max power @ RPM | 190 hp @ 4,750 rpm |
| Max torque @ RPM | 225 lb-ft @ 3,000 rpm |
| Cylinder head | Cast iron |
| Cylinder block | Cast iron |
| Camshaft drive | Timing chain |
| Vehicle | Transmission | Drive Wheels | Power @ RPM | Torque (lb-ft) @ RPM |
|---|---|---|---|---|
| Jeep Cherokee (1991 – 2001) | Four-speed automatic | RWD / 4WD | 190 @ 4,750 | 225 @ 3,000 |
| Jeep Grand Cherokee (1993 – 2004) | Four-speed automatic | RWD / 4WD | 190 @ 4,750 | 225 @ 3,000 |
| Jeep Wrangler (1991 – 2006) | Five-speed manual | 4WD | 190 @ 4,750 | 225 @ 3,000 |
| Jeep TJ (1997 – 2006) | Five-speed manual | 4WD | 190 @ 4,750 | 225 @ 3,000 |
| Jeep XJ (Cherokee Sport) (1991 – 2001) | Four-speed automatic | RWD / 4WD | 190 @ 4,750 | 225 @ 3,000 |
| Jeep YJ (Wrangler) (1991 – 1995) | Five-speed manual | 4WD | 180 @ 4,750 | 220 @ 3,000 |
Use conventional or break-in oil (non-synthetic) for the first 600 miles of operation. Do not drive for long periods at any single speed, always vary your speed. Do not tow a trailer or put other heavy loads on the vehicle. Check the engine oil and coolant levels daily.
At 600 Miles change the engine oil and filter using conventional (non-synthetic) oil. Check fuel and ignition settings; adjust valves (where applicable).
Fraser Engines & Transmissions is your trusted partner for 4.0L JEEP engine remanufacturing, offering unmatched quality and performance. Our state-of-the-art remanufacturing process involves precision engineering and the use of high-grade materials, ensuring each engine surpasses original specifications for durability and reliability.
We back our remanufactured our 4.0L JEEP engines with an industry-leading warranty, reflecting our commitment to quality and customer satisfaction. This robust warranty coverage is our guarantee of reliability, offering you peace of mind with every purchase.
Our team of experts is dedicated to providing personalized consultation services, ensuring that your 4.0L JEEP engine selection is perfectly aligned with your vehicle’s performance requirements. We focus on understanding your needs to recommend the best engine solution, promising optimal performance and seamless integration.
Opting for a remanufactured 4.0L JEEP engine from Fraser Engines & Transmissions means choosing an upgrade that enhances your vehicle’s efficiency, power, and reliability. Explore our selection of premium remanufactured engines today and take the first step towards a superior driving experience.
At Fraser, we understand that replacing your engine or transmission is a significant investment. To assist with the financial burden, we offer core waiver options that allow you to defer your core deposit, freeing up substantial funds to complete your project efficiently.
