🚚 Normally Delivers in 2-3 Business Days
Engine Block
Updated Timing Components
Updated Pistons
Updated Lifters
Updated Connecting Rods
Remanufactured & Updated Cylinder Head
Premium Gasket Set
Oil Pump
4 Years / Unlimited Miles Parts & Labor
At Fraser Engines, every remanufactured engine is updated to meet or exceed the latest OEM Technical Service Bulletins (TSBs). That means recurring factory-identified issues are corrected before your engine ever leaves our facility—ensuring greater reliability, performance, and longevity.
Our process is far more than a simple rebuild. Every engine goes through a rigorous, multi-stage remanufacturing procedure that includes:
Complete Disassembly – Engine is fully torn down to the bare block for precise inspection.
Thorough Cleaning – Components are cleaned with high-pressure and chemical treatments to remove all oil, carbon, and debris.
Precision Inspection – Blocks, heads, crankshafts, rods, and other critical parts are magnafluxed, measured, and checked against OEM tolerances.
Block & Head Machining – Surfaces are decked, honed, and align-bored to exact factory specifications.
Component Replacement – Worn or out-of-tolerance parts are replaced with new OEM-quality or upgraded components (bearings, pistons, rings, lifters, gaskets, seals, oil pump, timing components, etc.).
TSB Updates Applied – Design improvements and manufacturer fixes are incorporated, eliminating known factory issues.
Precision Assembly – Engines are reassembled in a controlled environment, with exact torque specifications and clearances.
Testing & Quality Control – Each engine undergoes pressure testing, oil flow checks, and strict final inspections to ensure flawless performance.
✅ Backed by Fraser’s industry-leading warranty
✅ Built to OEM specifications or better
✅ Trusted by shops and customers nationwide
Core Deposit: $620.00 (Waivable)
Round Trip Shipping: FREE
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| Year(s) | Make | Model | Engine Code (VIN) | Notes |
|---|---|---|---|---|
| 1984–2000 | Jeep | Cherokee (XJ) | VIN P / VIN H | 2.5L AMC I4, fuel injected after 1987 |
| 1986–1992 | Jeep | Comanche (MJ) | VIN P / VIN H | Pickup version of Cherokee |
| 1987–1995 | Jeep | Wrangler YJ | VIN P / VIN H | Carbureted early, fuel injected after 1991 |
| 1997–2002 | Jeep | Wrangler TJ | VIN P / VIN H | Revised MPI version until discontinued |
| 1993–1996 | Jeep | Grand Cherokee ZJ (base) | VIN P | Rare; phased out quickly in favor of 4.0L I6 |
When it comes to replacing your Jeep’s engine, you have options. But here’s why choosing a Fraser remanufactured 2.5L engine is the smartest investment:
A rebuilt engine only fixes the failed components. A remanufactured Fraser engine, on the other hand, goes through a complete tear-down, machining, and rebuild process. Every critical wear component is replaced with new or upgraded parts—from pistons and rings to bearings, seals, gaskets, oil pump, and timing components.
We incorporate all Jeep 2.5L TSB updates during remanufacturing. That means common factory-known problems are eliminated before the engine ever ships, giving you peace of mind and long-term reliability.
Every 2.5L Jeep engine we remanufacture undergoes:
Complete hot tank and pressure cleaning
Magnaflux inspection for cracks and flaws
Cylinder block boring and honing to precise tolerances
Cylinder head resurfacing and valve replacement
Crankshaft regrinding and balancing
Final oil flow, compression, and leak-down testing
This ensures your remanufactured Jeep engine performs like new—or better.
All Fraser Engines come with a standard 4-year nationwide warranty, giving you confidence that your investment is protected. We also offer extended warranty options and no-fault coverage for maximum protection.
A remanufactured 2.5L Jeep engine costs far less than buying a brand-new crate engine, while still delivering equal—or greater—reliability. Plus, remanufacturing reduces waste, making it the eco-friendly choice for Jeep owners who care about sustainability.
Our remanufactured 2.5L Jeep engines are perfect fits for:
Jeep Cherokee (XJ) 1984–2000
Jeep Wrangler (YJ & TJ) 1987–2002
Jeep Comanche (MJ) 1986–1992
If you’re not sure whether your Jeep is equipped with the 2.5L engine, our fitment specialists can confirm with your VIN number.
Over 50 years in the remanufacturing industry
Highest quality parts from trusted vendors
Nationwide shipping available
Live customer support before, during, and after the sale
When you choose Fraser Engines, you’re not just buying a product—you’re partnering with a company that stands behind every engine we sell.
Don’t settle for a junkyard motor or a quick rebuild. Invest in a remanufactured 2.5L Jeep engine from Fraser Engines and get back on the road or trail with confidence. Call today for a fast quote, nationwide shipping, and expert support.
👉 Call Fraser Engines at 1-800-731-3177 or request a quote online now!
The 2.5L Jeep engine has been a staple in Jeep history, powering models like the Jeep Wrangler YJ/TJ, Cherokee XJ, and Comanche MJ from the mid-1980s through the early 2000s. Known for its durability, simplicity, and off-road capability, the 2.5L engine remains a favorite among Jeep enthusiasts who value reliability and easy maintenance.
If you’re looking to replace, rebuild, or upgrade your Jeep’s 2.5L engine, Fraser Engines offers remanufactured 2.5L Jeep engines that combine modern updates with legendary Jeep toughness.
Engine Type: Inline-4 cylinder, cast-iron block and head
Displacement: 150 cubic inches (2.5 liters)
Horsepower: ~117–130 HP depending on model year
Torque: 135–150 lb-ft, tuned for low-end power
Fuel System: Early carbureted → later throttle-body and multi-port fuel injection
Applications:
Jeep Wrangler YJ (1987–1995)
Jeep Wrangler TJ (1997–2002, base models)
Jeep Cherokee XJ (1984–2000)
Jeep Comanche MJ (1986–1992)
Simplicity & Serviceability – Easy to work on, perfect for DIY Jeep owners.
Durability – With proper maintenance, these engines often surpass 200,000 miles.
Fuel Economy Advantage – While not as powerful as the 4.0L inline-six, the 2.5L provides better fuel efficiency for daily drivers.
Great for Off-Roading – Balanced torque and a lightweight design make it an excellent choice for trail rigs and budget builds.
Like any older engine, the 2.5L Jeep has a few common weak points:
Exhaust manifold cracking from heat stress
Valve cover leaks due to age and worn gaskets
Fuel injector clogging on higher-mileage units
Lower power output compared to the 4.0L, which sometimes leads owners to consider engine swaps
That’s where Fraser Engines steps in — with remanufactured 2.5L Jeep engines built stronger than stock.
At Fraser Engines, every remanufactured Jeep 2.5L engine undergoes a complete teardown, machining, and rebuild to meet or exceed OEM standards.
Complete Disassembly & Cleaning – All components hot-tanked and blasted
Precision Machining – Blocks are bored, honed, and decked to exact tolerances
Cylinder Head Reconditioning – Pressure tested, resurfaced, with new valve seats and guides
New & Premium Components – Pistons, rings, bearings, gaskets, and timing sets replaced with top-tier parts
Latest TSB & OEM Updates – We apply factory improvements for longevity and reliability
Rigorous Testing – Oil pressure, compression, and leak testing before shipping
4-Year / Unlimited Mileage Warranty
Built in the USA with premium components
Direct fit for Jeep Wrangler, Cherokee, and Comanche models
Free shipping to commercial addresses nationwide
Dedicated customer support before, during, and after your purchase
Rebuild Option – Only restores worn parts; limited lifespan depending on who rebuilds it.
Used Engine Option – Cheaper upfront, but risky due to unknown history and no warranty.
Remanufactured Option – Like a factory-fresh engine, but with stronger updates and a full warranty.
Fraser Engines recommends remanufactured 2.5L Jeep engines as the best value, combining affordability, performance, and reliability.
Jeep 2.5L engine replacement
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Jeep Wrangler 2.5L engine rebuilt
Jeep Cherokee 2.5L engine replacement cost
Jeep Comanche 2.5L remanufactured engine
Best place to buy Jeep 2.5L engine
Looking to breathe new life into your Jeep? A remanufactured 2.5L Jeep engine from Fraser Engines is the perfect solution for Wrangler, Cherokee, and Comanche owners who want reliable performance backed by the best warranty in the industry.
Call Fraser Engines today at 1-800-731-3177 or visit fraserengineco.com to get a quote and secure your remanufactured 2.5L Jeep engine.
A remanufactured engine is built with precision-machined surfaces, new piston rings, bearings, gaskets, seals, and updated components. The break-in process allows these components to properly seat and ensures long-term reliability. Failure to follow break-in procedures can cause:
Excessive oil consumption
Premature wear or scuffing
Overheating issues
Warranty denial for improper installation or neglect
Prime the Oil System – Before starting, pre-fill the oil filter and crank the engine without spark/fuel to build oil pressure.
Check Fluids – Fill with manufacturer-recommended oil (typically conventional, not synthetic, for break-in) and coolant.
First Start – Start the engine and immediately bring RPM to 1,500–2,000 for the first 15–20 minutes. This allows proper camshaft and lifter break-in while ensuring good oil splash.
Monitor Gauges – Watch oil pressure, coolant temperature, and listen for abnormal noises.
Inspect for Leaks – Shut down and check for oil, coolant, or fuel leaks before proceeding.
Avoid High RPM & Heavy Loads – Keep RPM under 3,500 and avoid towing, hauling, or aggressive driving.
Vary Engine Speed – Do not use cruise control; vary speeds to help piston rings seat properly.
Short Trips vs. Long Trips – Mix city and highway driving, but avoid extended idling or long highway trips at constant RPM.
Oil Change at 500 Miles – Drain the break-in oil, replace filter, and refill with fresh conventional oil. This removes metal particles from the seating process.
Continue varying engine speed.
Light to moderate loads are acceptable, but no full-throttle accelerations.
At 1,000 miles, perform a second oil and filter change.
Switch to high-quality synthetic or synthetic-blend oil if desired.
Normal driving, towing, and hauling can resume.
Maintain regular oil changes every 3,000–5,000 miles (conventional) or 5,000–7,500 miles (synthetic), or as recommended by Fraser Engines.
Always use premium filters (Fram Ultra, Wix, Mopar, Motorcraft, AC Delco, etc.).
Maintain proper cooling system function – replace thermostat, water pump, and radiator hoses during engine install.
Replace spark plugs, wires, and sensors if worn.
Use only manufacturer-approved coolant and oil specifications.