The Lemon Index
Dodge's 6.4 L naturally aspirated V8, pushrod in the Challenger SRT 392 / Scat Pack, Jeep Grand Cherokee SRT, Chrysler 300 SRT8, Charger SRT 392 / Scat Pack, Durango SRT 392, Jeep Wrangler Rubicon 392 and Jeep Grand Wagoneer, model years 2011–2026. YouTube likes the 2020 best.
A safer bet: YouTube owner tone 53/100, #47 of 165 engines with a YouTube study (in the top third); no engine-related recall on record, 1 known issue listed below.
Everyday cars with this engine Tap a year for that car's full report.
- Dodge Challenger SRT 392 / Scat Pack, SRT8 / Scat Pack 3922011201220132014201520162017201820192020202120222023
- Dodge Charger SRT 392 / Scat Pack, SRT8 / SRT 392 / Scat Pack201220132014201520162017201820192020202120222023
- Jeep Grand Cherokee SRT2012201320142015201620172018201920202021
- Dodge Durango SRT, SRT 39220182019202020212022202320242025
- Jeep Wrangler Rubicon 39220212022202320242025
- Chrysler 300 SRT8201220132014
Model years from EPA version lists. Only years we have a car page for.
Reliability by year
Why the car pages show more: the Challenger Scat Pack page counts 1,252 complaints and 27 recall campaigns for 2011–2023, everything NHTSA files as "Challenger", other engines included; the Charger 392 page counts 2,173 complaints and 37 recall campaigns for 2012–2023, everything NHTSA files as "Charger", other engines included; the Durango SRT page counts 748 complaints and 16 recall campaigns for 2018–2025, everything NHTSA files as "Durango", other engines included. This page counts only the 61 complaints and 0 recalls we can tie to the 6.4 HEMI (392) by model name or the owner's own words.
YouTube videos are most positive about the 2020 (59) and least about the 2016 (48); neighboring years share many of the same videos, so small gaps mean little.
How we count: owner complaints only where the car's name and year leave no doubt; YouTube tone from videos that name this engine or its cars. How we count
Owner complaints (NHTSA) are filed by model and year, not engine. We count one for this engine only when the model name and year had no other engine (e.g. "488 GTB", "GT-R"), or when the owner's own words name a version that had only this engine that year (Z06, ZR1, Hellcat, GT500 ...). They cover the whole car (wheels, air bags, electrics ...), not only the engine, and none of them is a failure rate. We chart them only for engines with 30 or more, over 3 or more years. YouTube tone = how positive the videos are, 0–100, from titles and transcripts (praise vs trouble words, the title counts 3 times), weighted by views; a year needs at least 3 videos' worth. A video counts for this engine when its title names the engine or a car that only had this engine in the years it names; a video whose title names no model year counts toward every year of that car, so neighboring years share most of their videos.
All the numbers, year by year
Recalls on cars with this engine
No NHTSA recalls we can tie to this engine's cars.
Engine problems Dodge told dealers about
Dodge sent dealers 1 repair note about the engine on these cars, including:
- Variable Valve Timing (VVT) Solenoid, Variable Valve Timing (VVT) Phaser For a 2016/2017 MY 6.4L SRT with…
NHTSA manufacturer communications (technical service bulletins), matched by model name and year like the complaints, engine-related ones only. A repair note is not a recall: ask a seller whether it was done.
Known issues on record
- Lifter and camshaft failure ("HEMI tick") (Owner-reported). Owners report a tick from failed roller lifters that then wear the camshaft. SlashGear ties most cases to the cylinder-deactivation lifters, used on automatics only. Fix: The repair is new lifters and a camshaft; catch it before metal debris spreads. 69 owner complaints to NHTSA mention it (LC (2011–2014) Challenger Scat Pack, LC (2015–2023) Challenger Scat Pack, LD Charger 392, LD (2015 update) Charger 392, WD Durango SRT).
- No engine recall (Recall). NHTSA lists no recall for the 6.4 engine on 2011–2023 Challengers. The 2015 and 2017 engine recalls cover the supercharged Hellcat only.
- No engine recall on the Charger (Recall). NHTSA lists no recall for the 6.4 engine on 2012–2023 Chargers. The 2012 SRT8 recall was for the tire-pressure monitor.
- No engine recall on the Durango (Recall). NHTSA lists no recall for the 6.4 engine on 2018–2024 Durangos. The recalls that hit SRT models are for other parts, such as the rear spoiler.
Sources: SlashGear: How reliable are 6.4L HEMI engines? Here's what owners have to say (Sep 2024), Chrysler Group: New high-tech features boost 2012 Dodge Challenger SRT8 392's overall performance (Aug 2011), NHTSA owner complaints and recalls, NHTSA recall 12V004000: 2012 Charger SRT8 / 300 SRT8 tire-pressure monitoring, NHTSA recall 23V115000: 2021–2023 Durango rear spoiler may detach. The same list as on the Challenger Scat Pack page, the Charger 392 page, the Durango SRT page.
Every US version with this engine
| Car and versions | Years |
|---|---|
| Dodge Challenger SRT 392 / Scat Pack Challenger, Challenger SRT, Challenger SRT8, Challenger Widebody · Dodge Challenger, every year | 2011–23 |
| Jeep Grand Cherokee SRT Grand Cherokee SRT 4WD, Grand Cherokee SRT8, Grand Cherokee SRT8 4WD · Jeep Grand Cherokee, every year | 2012–21 |
| Chrysler 300 SRT8 300 SRT8 · Chrysler 300, every year | 2012–14 |
| Dodge Charger SRT 392 / Scat Pack Charger, Charger SRT, Charger SRT8, Charger Widebody · Dodge Charger, every year | 2012–23 |
| Dodge Durango SRT 392 Durango AWD, Durango SRT AWD · Dodge Durango, every year | 2018–26 |
| Jeep Wrangler Rubicon 392 Wrangler 4dr 4WD · Jeep Wrangler, every year | 2021–25 |
| Jeep Grand Wagoneer Grand Wagoneer 2WD, Grand Wagoneer 4WD | 2022–23 |
Engine code: 6.4 "392" HEMI. Power: 470–485 hp, factory figures. Versions and years: EPA (fueleconomy.gov). Sources: Chrysler Hemi engine · Dodge Durango.
Quick answers
What cars have the 6.4 HEMI (392) engine?
In the US: the Dodge Challenger SRT 392 / Scat Pack, Jeep Grand Cherokee SRT, Chrysler 300 SRT8, Dodge Charger SRT 392 / Scat Pack, Dodge Durango SRT 392, Jeep Wrangler Rubicon 392, Jeep Grand Wagoneer, model years 2011–2026. See the version table for each one.
Is the 6.4 HEMI (392) reliable?
Mostly yes. YouTube owner tone 53/100, #47 of 165 engines with a YouTube study (in the top third); no engine-related recall on record, 1 known issue listed below. Owners filed 61 complaints we can tie to it, about any part of the car. Have any used car inspected.
How much horsepower does the 6.4 HEMI (392) make?
470–485 hp in factory figures, depending on the car.