Quick answers5.7L HEMI replacement engine FAQs
MDS vs non-MDS, VCT/VVT, Ram 1500 vs 2500/3500, EZC/EZH/EZL, eTorque, core charges and fitment verification.
Are all 5.7L HEMI engines interchangeable? +
No. The current catalog separates 5.7L HEMI engines by year, VIN code, MDS status, EGR, VCT/VVT, engine ID, platform and eTorque. Match the original application before ordering.
What is MDS on a 5.7 HEMI? +
MDS is the cylinder-deactivation system referenced throughout the current engine catalog as Multiple Displacement. Some applications are specifically listed with MDS while others, especially certain heavy-duty truck and Challenger paths, are listed without it.
What changed in the 2009 5.7 HEMI catalog? +
The 2009 products in this catalog introduce VCT terminology and continue to separate MDS-equipped and non-MDS applications. The 2009 Ram/Aspen/Durango listing is MDS-equipped, while the 2009-2012 Ram 2500/3500 path is listed without MDS.
Is the Ram 1500 5.7 HEMI the same as the Ram 2500/3500? +
Not necessarily. The 2009-2018 catalog repeatedly separates Ram 1500 MDS applications from Ram 2500/3500 non-MDS applications. Use the exact truck and engine ID rather than assuming interchange.
What do EZC, EZH and EZL mean on this page? +
They are engine IDs used in the current catalog to distinguish later 5.7L HEMI applications. EZC is used here on non-MDS VCT paths, EZH on MDS-equipped VCT paths, and EZL on the late eTorque path.
Why can a 2018 Challenger show two possible engines? +
The catalog contains both an EZH MDS/VCT 2018 Challenger-family engine and an EZC non-MDS/VCT 2018 Challenger engine. The finder intentionally returns both so the original engine ID and MDS status can be verified.
What is the 5.7 HEMI eTorque engine in this catalog? +
The late EZL listing covers 2019-2022 Ram 1500 and 2022 Grand Wagoneer eTorque applications and is listed with MDS and variable valve timing. It should be treated as a separate application path.
How much is the core charge? +
The active 5.7L HEMI products in this collection use refundable core deposits of $500, $550 or $1,000 depending on the engine. The live product card and checkout use the fee assigned to that specific product.
Does the finder use NHTSA for Year/Make/Model? +
No. The Year/Make/Model selector on this collection is generated from the GOAT application map. NHTSA is only used when a shopper chooses the separate VIN-decoder workflow.
Why are there duplicate-looking products for some years? +
The source catalog contains alternate offerings for certain 2009 and 2013-2017 applications. The hub preserves those separate products rather than silently collapsing them, and recommends final application verification.
What should I keep from my original HEMI? +
Keep the original engine complete until you review the replacement instructions and core-return requirements. Vehicle-specific intake, accessories, sensors, covers and other external components may need to transfer.
How do I confirm the correct 5.7 HEMI before buying? +
Start with Year/Make/Model, then verify the full VIN, engine ID, MDS status, EGR status on early applications, VCT/VVT on later engines and eTorque where applicable.
