Explainer
Which Ram 1500 Years Have the 8-Speed, eTorque, EcoDiesel or Hurricane?
Year-by-year Ram 1500 engines and transmissions, 2015-2027, with hp, torque and tow-chart maximums from Stellantis spec sheets and towing charts.
By the West CDJR editorsUpdated November 8, 20267 min read
Short answers first, all taken from the engineering spec sheets and towing charts in our research data. The 6‑speed automatic shows up only on the 2015 and 2016 sheets, and only with the 5.7‑liter HEMI. Every other Ram 1500 sheet from 2015 through 2027 lists eight-speed automatics. The 3.0‑liter EcoDiesel appears on the 2015 through 2018 and 2020 through 2023 sheets, with no diesel on the 2019 or 2024 to 2027 sheets. eTorque first appears on the 2019 sheet. The Hurricane inline-six (listed as "Straight-Six Turbo" before 2027) appears on the 2025, 2026 and 2027 sheets.
The matrix below lists what each year's sheet shows. It is a record of what the document lists, not a build guide, so a specific truck can differ by trim and package.
Engines by year
| Year | Engines listed on the spec sheet | Gap or oddity |
|---|---|---|
| 2015 | 3.0L EcoDiesel V6, 3.6L Pentastar V6, 5.7L HEMI V8 | Rebel has its own sheet block (V6 and V8 only) |
| 2016 | EcoDiesel, Pentastar, 5.7L HEMI | None |
| 2017 | EcoDiesel, Pentastar, 5.7L HEMI | None |
| 2018 | EcoDiesel, Pentastar, 5.7L HEMI | None |
| 2019 | 3.6L Pentastar with eTorque, 5.7L HEMI, 5.7L HEMI eTorque | No diesel listed; EPA mpg for both eTorque engines reads "TBA" |
| 2020 | EcoDiesel, 3.6L eTorque, 5.7L HEMI, 5.7L HEMI eTorque | None |
| 2021 | Same four, plus 6.2L supercharged V8 in a TRX block | TRX is a separate variant on the sheet |
| 2022 | EcoDiesel, 3.6L eTorque, 5.7L eTorque, 5.7L, 6.2L supercharged | None |
| 2023 | EcoDiesel, 3.6L eTorque, 5.7L eTorque, 6.2L supercharged | Plain 5.7L no longer listed |
| 2024 | 3.6L eTorque, 5.7L eTorque, 6.2L supercharged | No diesel listed |
| 2025 | 3.0L Straight-Six Turbo (SST), SST High Output, 3.6L eTorque | No V8 listed |
| 2026 | SST, SST High Output, 3.6L eTorque, 5.7L HEMI eTorque | 5.7L returns |
| 2027 | Hurricane I6 standard output and high output, 3.6L eTorque, 5.7L eTorque, 5.7L, 6.2L supercharged, 6.4L HEMI | Widest list of any year; three mpg figures (plain 5.7L, 6.2L, 6.4L) read "Pending certification" |
If a year looks thin, remember that the sheet is the source. A missing engine means the sheet did not list it, which is not the same as proof that no truck was built with it.
Horsepower and torque, as printed on the sheets
| Engine | Years | Power | Torque |
|---|---|---|---|
| 3.0L EcoDiesel V6 | 2015–2018 | 240 hp at 3,600 rpm | 420 lb‑ft at 2,000 rpm |
| 3.0L EcoDiesel V6 | 2020–2023 | 260 hp at 3,600 rpm | 480 lb‑ft at 1,600 rpm |
| 3.6L Pentastar V6 (eTorque from 2019) | 2015–2021 | 305 hp | 269 lb‑ft (at 4,175 rpm through 2018; at 4,800 rpm for 2019–2021) |
| 3.6L Pentastar V6 eTorque | 2022–2027 | 305 hp at 6,500 rpm | 271 lb‑ft at 4,900 rpm |
| 5.7L HEMI V8 (with or without eTorque) | 2015–2024, 2026–2027 | 395 hp at 5,600 rpm | 410 lb‑ft at 3,950 rpm |
| 6.2L supercharged HEMI V8 | 2021–2024 | 702 hp | 650 lb‑ft |
| 3.0L Hurricane / SST, standard output | 2025–2027 | 420 hp at 5,200 rpm | 469 lb‑ft at 3,500 rpm |
| 3.0L Hurricane / SST, high output | 2025–2027 | 540 hp at 5,700 rpm | 521 lb‑ft at 3,500 rpm |
| 6.2L supercharged HEMI V8 | 2027 | 777 hp at 6,500 rpm | 680 lb‑ft at 4,800 rpm |
| 6.4L HEMI V8 | 2027 | 470 hp at 6,000 rpm | 455 lb‑ft at 4,200 rpm |
Two small details in that table are easy to miss. The V6's torque figure moved from 269 to 271 lb‑ft on the 2022 sheet, while its horsepower stayed at 305. And the EcoDiesel's step from 240 to 260 hp and from 420 to 480 lb‑ft shows up between the 2018 and 2020 sheets, with no diesel on the 2019 sheet to show which year it happened.
The 6‑speed versus the 8‑speed
The 6‑speed is the 65RFE. The 2015 and 2016 sheets say it was available on trucks with the 5.7‑liter V8, and no later sheet in the research data lists it. The 8-speeds were already on the sheets for the same years: the 845RE came standard with the 3.6‑liter V6, and the 8HP70 came standard with the EcoDiesel and "select" 5.7‑liter trucks.
Where the same engine was offered with both gearboxes, the sheet gives separate fuel economy numbers:
| 5.7L HEMI V8, EPA city/hwy | 2015 | 2016 |
|---|---|---|
| Eight-speed automatic | 15/22 | 15/22 |
| Six-speed automatic | 14/20 | 14/20 |
The sheets do not say why the numbers differ, but the gearing is different. The 65RFE's first gear is 3.00 and its sixth is 0.67. The eight-speed's first gear is 4.71 and its eighth is 0.67, so it has a lower first gear and two more steps between the ends. The 2015 sheet also lists a 4.10 axle ratio alongside the 6‑speed, while the eight-speed blocks that year top out at 3.92.
After 2016 the sheets show only eight-speeds, but the part numbers move. The 8HP70 becomes the 8HP75 on the 2019 sheet. The 845RE becomes the 850RE on the 2021 sheet. The TRX uses an 8HP95, listed on 2021 through 2024 and again in 2027.
What eTorque is, and when it applies
eTorque is a 48-volt assist system (the 2019 sheet lists a 12-cell lithium-ion battery of .43 kWh), and the sheets list it as a belt-starter generator with an output rating. The 2019 sheet gives the V6 version as 9 kW with 90 lb‑ft of launch torque, and the V8 version as 12 kW with 130 lb‑ft. The V6 figure is unchanged on every sheet through 2027, and the V8 figure is unchanged on the 2019 through 2024, 2026 and 2027 sheets.
Here is when each pairing shows up:
- 3.6L V6 eTorque: every sheet from 2019 through 2027. The 2019 sheet lists no non-eTorque V6.
- 5.7L HEMI eTorque: 2019 through 2024, then 2026 and 2027. The 2025 sheet has no V8 at all.
- Plain 5.7L HEMI: listed alongside the eTorque version in 2019 through 2022 and again in 2027.
- EcoDiesel, Hurricane, supercharged 6.2L: none are listed with eTorque.
Maximum trailer weight by engine, 2020-2027
Towing charts only exist in the research data from 2020 on, so there are no tow figures here for 2015 through 2019. The figure below is the highest max-trailer value in any configuration of that engine on that year's chart. Engines on the chart often span a wide range, so treat it as a ceiling and never an average.
| Year | EcoDiesel | 3.6L V6 | 5.7L HEMI | Hurricane SO | Hurricane HO | Other |
|---|---|---|---|---|---|---|
| 2020 | 12,560 | 7,710 | 12,750 | n/a | n/a | n/a |
| 2021 | 12,560 | 7,710 | 12,750 | n/a | n/a | n/a |
| 2022 | 12,560 | 7,690 | 12,750 | n/a | n/a | 6.2L: 8,100 |
| 2023 | 12,560 | 7,690 | 12,750 | n/a | n/a | 6.2L: 8,100 |
| 2024 | n/a | 7,690 | 12,750 | n/a | n/a | 6.2L: 8,100 |
| 2025 | n/a | 8,170 | n/a | 11,600 | 10,050 | n/a |
| 2026 | n/a | 8,130 | 11,320 | 11,610 | 10,000 | n/a |
| 2027 | n/a | 8,100 | 8,890 (plain), 11,370 (eTorque) | 11,530 | 9,240 | 6.2L: 8,580; 6.4L: 7,460 |
All values are pounds. Two things stand out. The most powerful Hurricane tows less than the standard-output one on every chart where both appear. And the EcoDiesel, with the smallest displacement and horsepower of the group, has the second-highest ceiling through 2023.
One data note: the 2022 through 2024 tow charts list the 6.2L supercharged V8 with an 8HP75, while the spec sheets for the same years call the TRX transmission an 8HP95. The two documents disagree, and we have not resolved it.
Naming trouble when you search
Stellantis labels change from year to year. The 2025 and 2026 sheets say "Straight-Six Turbo (SST)"; the 2025 through 2027 tow charts say "Hurricane I6"; the 2027 sheet says "Hurricane I6 twin‑turbo". They describe the same 420 hp and 540 hp engines. In the other direction, the tow charts for 2020 through 2024 list the 5.7 as "HEMI V8" without eTorque even though the 2023 and 2024 sheets list only the eTorque version, so use the sheet when you need to know whether a given engine had the assist.
How to check your own truck
Run the VIN through the VIN decoder to see the engine and transmission your truck left the factory with. Each year page above has the engine-level spec tables, and the spec explorer lets you compare configurations for 2023 onward. For ratings, open the towing hub or the Ram 1500 model page rather than relying on an engine name alone, since the trailer maximum depends on cab, axle ratio and package.
