Why MDS Lifters Fail, and What an MDS Delete Does

Choose Your 5.7L HEMI Eagle Build

Fraser handles warranty claims directly with engine specialists, not call-center reps; labor is reimbursed using Mitchell or ALLDATA book time. For Options 3 and 4, the tuner and ECM unlock (2015+) are the customer's responsibility; check your state's emissions requirements before choosing a delete build. Optional No-Fault upgrades from 1 to 5 years are available on every option. Coverage, eligibility, exclusions and claim procedures are governed by Fraser Engines' written warranty agreement.

The Fraser Advantage™

Why Choose a Fraser Advantage™ 5.7L HEMI Gen II Engine?

Our Fraser Advantage™ Premium Remanufactured 5.7L HEMI engines are built to exceed OEM standards. We don't just rebuild engines; we correct the root causes of wear and upgrade critical systems for long-term durability.

Every engine is fully tested and quality inspected, matched by VIN to the correct Gen II 5.7L HEMI for your vehicle, and ships free to commercial addresses with core pickup coordinated by Fraser.

5.7L HEMI Gen II fitment matters

Vehicle Applications and VIN-Based Fitment

Our Gen II 5.7L HEMI engines fit 2009-and-newer Ram, Jeep, Dodge and Chrysler applications. The 2009+ Eagle engine (VVT, Eagle heads) is not interchangeable with the 2003–2008 Gen I, and fitment also varies by VIN, model year, truck vs. car, eTorque and emissions package, so Fraser matches every order to your VIN before shipment.

VIN-specific matching: have your full 17-character VIN ready so our team can match the exact Gen II 5.7L HEMI replacement engine for your vehicle. Have a 2003–2008 vehicle? See our 2003–2008 5.7L HEMI page.

5.7L HEMI Gen I vs. Gen II Eagle

Know the warning signs

Common 5.7L HEMI Gen II Engine Problems

These issues are exactly why a used or junkyard 5.7L HEMI is risky: without correcting the known weak points, the same failures come right back. Most customers start shopping after the famous "HEMI tick," a wiped cam lobe, MDS lifter failure, a VVT / cam-phaser fault or timing noise.

Diagnose first

Repair or Replace? Signs You Need a 5.7L HEMI Gen II Engine

Some HEMI issues can be repaired externally, but a failed lifter that has wiped the cam, metal in the oil, internal noise, low compression or severe overheating make a replacement engine the better long-term repair.

• Lifter tick, knocking, rattling or internal noise
• Overheating damage or repeated coolant loss
• Low compression or failed leak-down test
• Misfires that continue after ignition and fuel repairs
• Timing chain rattle, MDS or timing fault codes
• Oil pressure warnings or metal in the oil
• Coolant mixing with oil or a failed head gasket
• Replacement recommended by a licensed repair shop

True remanufacturing, not a budget rebuild

How Your Fraser 5.7L HEMI Gen II Is Built

Every Fraser 5.7L HEMI Gen II is torn down to the bare block and rebuilt in a controlled, multi-step process. Choose the Fraser Advantage™ option and every applicable OEM and aftermarket Technical Service Bulletin update is applied, so known weak points are corrected before the engine ships.

1. Complete teardown to the bare block and industrial cleaning.
2. Precision-machined block built to OEM or tighter tolerances.
3. Remanufactured Eagle cylinder heads: pressure tested, resurfaced; upgraded lifters and valvetrain on Fraser Advantage™.
4. New pistons, rings and bearings installed to factory-clearance specs.
5. New timing components, or fixed-timing VVT delete and HP camshaft on Option 4.
6. New oil pump (high-performance pump on Option 4) with oil passages restored.
7. New gaskets and seals throughout to prevent leaks.
8. Balanced and tested rotating assembly and final quality inspection.

Know the difference

Used 5.7L HEMI Gen II vs. Low-Cost Rebuild vs. Fraser Remanufactured

A used 5.7L HEMI may seem like the lower-cost option upfront, but it often comes with unknown mileage, hidden internal wear and the same factory lifter and oiling issues that caused the original engine to fail. Fraser Advantage™ engines are fully remanufactured, upgraded and tested, the smarter choice for long-term value and dependability.

5.7L HEMI Eagle Installation Tips to Prevent Repeat Failure

• Flush or replace the oil cooler and lines
• Replace the oil pan and pickup if metal was found
• Replace broken exhaust manifold bolts
• Flush the radiator and cooling system
• Have the tuner and ECM unlock ready for delete builds
• Prime the oil system before first start
• Use the specified oil grade and change it on time
• Change oil after the first 500 miles

Metal left in the oil cooler or pan can ruin a new engine. Your engine ships with Fraser's installation guidelines. Follow them closely and keep your receipts to keep your warranty in force.

How to Order Your 5.7L HEMI Eagle Engine

1. Send your VIN. Use the Fast Quote form, call 800-731-3177 (press 1), or text (586) 284-4941.
2. Pick your build. A product specialist confirms fitment, eTorque and emissions, and helps you choose Option 1, 2, 3 or 4.
3. Ship to your shop. In-stock engines ship the same day when ordered before 3 PM EST.
4. Install and return the core. Fraser coordinates free commercial core pickup after installation.

Answers before you order

5.7L HEMI Gen II Engine Replacement FAQs

What is an MDS Delete engine and do I need a tuner?

An MDS Delete engine uses non-MDS lifters and a non-MDS camshaft, permanently removing cylinder deactivation, the Eagle HEMI's #1 failure point. Yes, a tuner is required, and 2015+ vehicles also need an unlocked ECM; both are the customer's responsibility. Check your state's emissions requirements first.

What's the difference between Option 3 and Option 4?

Option 3 deletes MDS. Option 4 deletes MDS and VVT, adding fixed cam timing, a high-performance camshaft and a high-performance oil pump for towing and performance. Both carry 3 years / unlimited miles plus 1 year free No-Fault.

Does the Fraser HEMI fix the lifter and camshaft problems?

Yes. Fraser Advantage™ builds use upgraded lifters and valvetrain with restored cam and heads. MDS Delete builds remove the MDS lifters entirely, eliminating the root cause.

Is a remanufactured 5.7L HEMI Gen II better than a used engine?

Yes. A used Eagle HEMI has the original MDS lifters and unknown mileage. A Fraser HEMI is zero-mile with all-new internal and timing parts, and you choose upgraded lifters or a full MDS delete.

What are common 5.7L HEMI Gen II engine problems?

MDS lifter failure (the #1 failure), the HEMI tick, camshaft wear, timing chain and VVT phaser wear, oiling sensitivity, and broken exhaust manifold bolts.

What's the difference between the Standard and Fraser Advantage™ options?

Standard is a fully remanufactured Eagle HEMI with a 3-year / unlimited-mile warranty. Fraser Advantage™ adds upgraded lifters and valvetrain, restored cam and heads and all TSB updates, with a 5-year / unlimited-mile warranty and 1 year free No-Fault. Both keep MDS active.

Will a 2003–2008 HEMI fit my 2009+ vehicle?

No. The Eagle has VVT, Eagle heads and other changes, so it doesn't interchange with the 2003–2008 HEMI. We confirm by VIN.

Does Fraser help verify 5.7L HEMI Gen II engine fitment?

Yes. Fitment varies by VIN, year, truck vs. car, eTorque and emissions, so we match every order to your VIN.

Can Fraser ship my 5.7L HEMI Gen II engine to my repair shop?

Yes. We ship directly to commercial repair facilities, free in the continental U.S., and coordinate free commercial core pickup after installation.

Is a No-Fault warranty upgrade available?

Yes. Optional No-Fault upgrades from 1 to 5 years are available on every option. Options 2, 3 and 4 already include 1 year of free No-Fault coverage.