The complete 4th-gen Ram 1500 (DT) maintenance schedule for 2019–2024—covering the 5.7L HEMI, 3.6L Pentastar with eTorque mild-hybrid, EcoDiesel, and TRX with oil-life intervals, common Mopar part numbers, and how towing changes the chart. These engines do not share the same filters, so track the right one in Carmainty.
Quick reference
Factory-style intervals for 2019–2024 Ram 1500 (DT) trucks under normal driving. The oil-life monitor sets oil timing on most builds—treat mileage figures as maximums, not fixed targets. Towing, eTorque, and dusty jobsite use still favor earlier air filters and axle fluids; see the towing section below.
| Interval | Service item | Notes & Mopar |
|---|---|---|
| Per oil-life / ≤1 yr | Engine oil & filter | 3.6: 68191349AC · 5.7: 4892339BE · 0W-20 / 5W-20 |
| Severe: 5,000–7,500 mi (8,000–12,000 km) | Engine oil & filter | Towing, short trips, idling, dust—don’t wait on the monitor |
| Every oil service | Tire rotation | Check pressure and tread · matched depth protects 4x4 |
| Every oil service | Brake inspection | Pads, rotors, lines · towing accelerates wear |
| 20,000–30,000 mi (32,000–48,000 km) | Cabin air filter | 68535623AA — many DT trucks · behind glove box |
| 30,000 mi (48,000 km) | Engine air filter | 5.7 common: 68414387AA · confirm 3.6 / EcoDiesel / TRX |
| 30,000 mi (48,000 km) | Brake fluid inspection | Replace if contaminated · every 2 yr if towing |
| 30,000–60,000 mi (48,000–96,000 km) | Front / rear axle fluid | Inspect · replace sooner if towing, off-road, or deep water |
| 4x4: ~60,000 mi (96,000 km) | Transfer case fluid | Sooner if towing or off-road · confirm spec by VIN |
| Severe: ~60,000 mi (96,000 km) | Automatic transmission fluid | Don’t treat “long-life” as infinite on a towing truck |
| Per engine chart | Spark plugs | Interval varies by engine · confirm in owner’s manual |
| Per manual / age | Engine coolant | Inspect yearly · replace per schedule or if contaminated |
| Every 2–3 years | Brake fluid replacement | Sooner if towing or in humid climates |
| eTorque only | 48V system inspection | Check for fault messages at each oil service · see eTorque section |
| EcoDiesel / TRX | Oil, filters & fluids | VIN-specific · gas-engine numbers do not apply |
Engine-specific — don’t mix up your parts
The 5.7 HEMI and 3.6 Pentastar use different Mopar oil filters—cartridge on the V6, spin-on on the V8. EcoDiesel and TRX need VIN-specific lookups, and eTorque trucks still use the standard gas-engine filter for their engine.
Tradesman · Big Horn · Laramie · Rebel · Laramie Longhorn · Limited
4892339BESpin-on Mopar filter; supersedes 4892339AA/AB. eTorque trucks use the same filter—the 48V system does not change the oil filter.
Tradesman · Big Horn · Lone Star · Rebel · Laramie · Limited
68191349ACCartridge filter only—do not use the HEMI spin-on. Same filter on eTorque and non-eTorque builds.
EcoDiesel: Big Horn · Laramie · Limited · TRX: 2021–2024 (HEMI-based)
Do not assume gas-engine numbers apply. Look up filters and oil on store.mopar.com by VIN or ask a Ram dealer.
Detailed schedule
Expand each item for OEM numbers, capacities, and owner notes. Always confirm fitment for your year, engine, and drivetrain.
Per oil-life monitor · at least yearly
The 4th-gen Ram uses an oil-life monitor that tracks load, temperature, and trip patterns. Highway use can stretch intervals, but towing, hauling, short cold trips, and idling shorten them. Change oil at least once a year even if the monitor hasn’t triggered.
Many 3.6 and 5.7 gas engines specify 0W-20 or 5W-20—read the filler cap. eTorque mild-hybrid trucks still need conventional oil and filter service on the gas engine. EcoDiesel and TRX use different oil and filters.
68191349ACCartridge Mopar filter for most 3.6L applications.
4892339BESpin-on Mopar filter for most 5.7L (supersedes 4892339AA/AB). TRX / EcoDiesel differ—VIN check.
Every oil service
Rotate at every oil service and measure tread. 4x4 and towing trucks need matched depths to protect axles, transfer case, and ABS. Inspect pads, rotors, and lines at the same visit—heavy payloads and trailers accelerate wear.
Every 20,000–30,000 miles (32,000–48,000 km)
DT trucks have a factory cabin filter behind the glove box—replace every 20,000–30,000 miles (32,000–48,000 km) or annually, and sooner in dusty or pollen-heavy areas. Weak HVAC airflow or a musty smell with the A/C on are the usual signs.
68535623AACurrent Mopar cabin element for many DT trucks (supersedes 68406048AA / 68318365AA).
Every 30,000 miles (48,000 km)
Replace about every 30,000 miles (48,000 km) under normal use; inspect earlier on unpaved roads or jobsites. Engine air part numbers vary by powertrain—HEMI vs 3.6 vs EcoDiesel vs TRX.
68414387AACommon DT 5.7 element—confirm 3.6 / EcoDiesel / TRX alternatives by VIN.
Per engine chart · coolant per manual
Spark-plug intervals and part numbers vary by engine and build year—confirm in your owner’s manual rather than guessing. Check coolant level and condition yearly; towing and hot climates justify earlier service.
This page does not list spark-plug or coolant part numbers because they vary by engine and year. Look them up by VIN on store.mopar.com.
Severe service / 4x4
Towing, commercial use, and deep water mean earlier axle and transfer-case fluid than the “normal” chart. Inspect axle fluids around 30,000–60,000 miles (48,000–96,000 km); replace if discolored or after hard off-road use.
Transmission service intervals are long but not infinite on hard-worked trucks. Many owners service ATF around 60,000 miles (96,000 km) under towing—use the fluid specified for your transmission.
If you actually use your truck
Normal-driving intervals assume light loads and highway miles. Regular towing, heavy payloads, jobsite dust, extreme heat, or lots of idling count as severe use—and the schedule shortens. This is where many Ram 1500 owners under-maintain the truck.
3.6L and 5.7L eTorque — 48V mild hybrid
eTorque adds a belt-driven motor-generator and a 48V battery to selected 3.6L and 5.7L trucks. It smooths stop-start and adds assist torque, but it does not replace the gas engine’s normal service—oil, filter, air filter, and fluids follow the same schedule.
Oil filters stay the same as non-eTorque trucks: 68191349AC on the 3.6 and 4892339BE on the 5.7. Don’t stretch oil intervals just because it’s a mild hybrid, especially if you tow.
Master reference
| Service | OEM / Mopar | Notes |
|---|---|---|
| Oil filter — 3.6 / eTorque | 68191349AC | Cartridge |
| Oil filter — 5.7 HEMI / eTorque | 4892339BE | Spin-on · VIN for TRX/diesel |
| Cabin filter | 68535623AA | Supersedes 68406048AA |
| Engine air filter — 5.7 (common) | 68414387AA | Confirm other engines |
| EcoDiesel / TRX filters & oil | VIN lookup | No gas-engine numbers apply |
| Oil viscosity | 0W-20 / 5W-20 | Confirm under-hood / cap |
The real math
Overdue HEMI oil → MDS / valvetrain issues
Vs. monitor-based (or 5–7.5k severe) oil changes
$3,000–$8,000+
Wrong oil filter for engine → fitment / filtration risk
Vs. matching 5.7 vs 3.6 filters
Engine damage risk
Neglected ATF under tow load → transmission failure
Vs. fluid service around 60k severe
$3,500–$6,000+
Neglected 4x4 fluids after hard use → axle work
Vs. fluid services
$1,500–$4,000+
People also ask
When the oil-life monitor says so—and at least yearly. Towing and severe use often land between 5,000 and 7,500 miles (8,000–12,000 km). Gas engines typically specify 0W-20 or 5W-20; confirm the filler cap.
Most 3.6L (including eTorque): Mopar 68191349AC. Most 5.7L (including eTorque): 4892339BE. EcoDiesel and TRX differ—look up on store.mopar.com with your VIN.
Not always. Classic continues the older DS platform alongside 2019–2024 DT trucks. Confirm platform / VIN before ordering filters; DS trucks may follow the 2009–2018 schedule and part numbers.
Cabin filter for many DT trucks: Mopar 68535623AA (~20,000–30,000 miles (32,000–48,000 km)). Common 5.7 engine air filter: 68414387AA (~30,000 miles (48,000 km)). Confirm 3.6, EcoDiesel, and TRX by VIN.
Yes. Under severe/towing use: oil every 5,000–7,500 miles (8,000–12,000 km), inspect axle fluids every 30,000, transfer case and transmission fluid around 60,000 miles (96,000 km), and brake fluid about every 2 years. Air filters also need earlier inspection on dirt roads.
No. eTorque trucks use the same oil filters as non-eTorque: 68191349AC on the 3.6L and 4892339BE on the 5.7L. The 48V system adds inspection items but doesn’t replace the gas engine’s normal service.
Both need VIN-specific oil, filter, and air-filter lookups. We don’t list part numbers for them here—use store.mopar.com or a Ram dealer rather than gas-engine numbers.
No. 2009–2018 trucks are the 3rd gen with different cabin and air filter numbers and no eTorque. See the 2009–2018 schedule linked below.
Yes—Carmainty lets you log mileage, set reminders for each interval on this page, attach receipts, and track multiple vehicles. Free to download on the App Store and Google Play.