Ram350020156.4L/ram/3500/2015/6-4l/
D2 platform

2015 Ram 3500 — 6.4L

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2015 3500 6.4L.

Engine 6.4L

The 2015 Ram 3500 utilizes the D2 platform and is equipped with a 6.4L engine requiring 7.0 quarts of 0W-40 API viscosity oil. This model year recorded 136 total owner complaints and 16 recalls, with the power train identified as the top complaint area. Within the 2007-2026 model history, these figures place the 2015 version well below the series peak of 777 complaints in 2018, though significantly above the low of 3 complaints seen in 2009.

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity7.0 qtOEM · verified
Engine oil type0W-40 APIOEM · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI H7 · 730 CCA battery, OE oil filter 04892339BE. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI H7 · 730 CCAOEM · verified

OE service part numbers OEM · verified

Engine oil filter04892339BE alt 05083285AA
Engine air filter68441763AA alt 68190705AB
Fuel filter68157291AA alt 68197867AB
Spark plugSP138239AC alt SP143877AB
BatteryBBH7F001AA
Front wiper blades55277446AB
Serpentine belt04627589AA alt 04627751AA
Thermostat52028898AJ alt 68534176AA

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length236.2 in
Overall width80.7 in
Overall height99.2 in
Wheelbase159.1 in
Curb weight4963 lb
Track (front / rear)71.3 / 70.5 in

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 7.0 qt of 0W-40 API engine oil, DOT 3 brake fluid. The firing order is 1-8-4-3-6-5-7-2. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.

Lubricants & capacities

Automatic Transmission FluidATF+4
Automatic Transmission Fluid Capacity5.0-6.5
Brake FluidDOT 3
Clutch FluidDOT 3
Differential Gear Oil Capacity215FD Front Axle
Engine Coolant Capacity16.6
Engine Oilsynthetic · API · 0W-40 · MS-12633
Engine Oil Capacity7.0 qt

Engine torques

Exhaust Manifold to Cylinder Head Bolts32
Intake Manifold to Engine Bolts9

Chassis torques

Leaf Spring to Axle (U-bolts)110.0 ft-lbs
Leaf Spring to Chassis Bracket254.5 ft-lbs
Leaf Spring to Rear Shackle160.0 ft-lbs
Leaf Spring Rear Shackle to Chassis Bracket160.0 ft-lbs
Steering Track (Rod End) Bolts80.0 ft-lbs
Transfer Case Fill Plug15.0-22.0 ft-lbs
Transfer Case Drain Plug15.0-22.0 ft-lbs
Front Wheel Hub149 ft-lbs

Ignition

Cylinder Firing Order1-5-3-6-2-4
Cylinder Firing Order1-8-4-3-6-5-7-2

Battery & A/C

RefrigerantR134a
Refrigerant Capacity18.08 lbs
RefrigerantR134a
Refrigerant Capacity1.18-1.38 lbs
Oil GroupPAG
Oil Type46
Oil Capacity6.00-6.10 oz
RefrigerantR134a

Service checks

Secondary Fuel Pump Pressure500 ml in 10 seconds psi
Engine Compression350 min psi / Maximum Variation 2 psi

Brakes

Brake Caliper Bolt to Carrier TorqueFront: 24; Rear: 22 /; Front: 24; Rear: 22
Brake Caliper Carrier to Hub Bolt TorqueFront: 260; Rear: 190 /; Front: 260; Rear: 190
ABS Sensor TorqueFront: 9.5; Rear: 17.3 /
Minimum Pad ThicknessFront: 0.040; Rear: 0.040 in
Vented Rotor Minimum Thickness for ReplacementFront: 1.472; Rear: 1.275
Variation from Parallelism Thickness Variation.0004
Maximum Rotor Runout.0009
Maximum Drum DiameterFront and Rear: NA; Parking Brake: 8.157

Multi-step torque procedures OEM · verified

Cylinder Head — tightening sequence 7 stages
1Bolts 1-1025 ft. lbs
2Bolts 11-1515 ft. lbs
3Bolts 1-1040 ft. lbs
4Bolts 11-1515 ft. lbs
5Bolts 1-1045 ft. lbs
6Bolts 1-1090 degrees
7Bolts 11-1525 ft. lbs

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 15,000 mi; coolant every 15,000 mi. The big-interval services (every 15,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

Every 7,500 miDiesel Emissions Fluid (inspect fluid level) · Driveshaft U-Joint (lubricate) · Tie Rod (lubricate) · Tire & Wheel Assembly (rotate)
Every 8,000 miBattery (inspect) · Brake System (inspect) · Driveshaft U-Joint (lubricate) · Tire & Wheel Assembly (rotate)
Every 15,000 miDrive Axle Assembly (inspect) · Engine Coolant System (inspect fluid level) · Engine Coolant System Hoses (inspect) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Exhaust System (Complete) (inspect)
Every 22,500 miAccessory Drive Belt (inspect) · Brake Linings (inspect) · Parking Brake System (inspect)
At 30,000 miTransmission Assembly (drain & refill)
Every 30,000 miCV Joint Boot (inspect) · Differential (inspect fluid level) · Engine Air Filter Element (replace) · Transfer Case Assembly (inspect fluid level) · Wheel Bearing (inspect)
Every 60,000 miTransmission Assembly (drain & refill) · Transmission Fluid & Filter (replace)
Every 67,500 miEngine Breather Filter (replace)
Every 97,500 miPower Steering System (drain, flush & refill)

Owner how-tos

Condensed service procedures for routine maintenance. Procedures that require dealer diagnostic equipment are identified and summarized only.

Common procedures

Key fob — remote (RKE) programming programming new fob buttons Dealer tool OEM · verified
Tool requiredDRBIII scan tool (dealer / locksmith)
WhyTransmitter codes are written into the receiver in the passenger door module
Anti-theft (SKIS) — module initialization after immobilizer module replacement Dealer tool OEM · verified
When neededAfter Sentry Key Immobilizer Module (SKIM) replacement
Tool requiredDRBIII scan tool
Also requiredThe vehicle's four-digit PIN code

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

The 2015 Ram 3500 sits in a mid-run sweet spot: with 136 complaints, 16 recalls, 4 investigations, and 522 TSBs, it follows the 2014 high of 202 complaints and 17 recalls and immediately precedes the 2016–2018 escalation that culminated in 777 complaints and 11 recalls in 2018. Against the earliest years in the record—2007 through 2009, which posted only 6, 4, and 3 complaints respectively—the 2015 tallies are far higher, yet they are also well below the 2017–2018 spike. The leading 2015 complaint categories are Power Train (13), Service Brakes (12), Steering (11), and Wheels (10), while the data records 3 crash-related and 5 fire-related complaints without identifying root causes. Because 2015's complaint and recall volumes sit between the cleaner early years and the much busier 2017–2018 period, it represents a relatively moderate-risk model year in this record. For a buyer considering a used heavy-duty Ram, 2015 appears to be a reasonable choice within this span, provided a pre-purchase inspection focuses on brakes, steering, and powertrain.

16
Open recalls
NHTSA campaigns
522
Service bulletins
Manufacturer communications
4
ODI investigations
Office of Defects Investigation
136
Owner complaints
3 involved a crash · 5 a fire
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 136 complaints on record, top 8 components.

Power Train13
Service Brakes12
Steering11
Wheels10
Engine8
Unknown Or Other7
Power Train,Engine7
Suspension6

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 16 campaigns on record for this vehicle.

19V021000Steering:Linkages:Drag:Link:ConnectionReported 25/01/2019

Chrysler (FCA US LLC) is recalling certain 2013-2018 Ram 3500 and 2014-2018 Ram 3500 Chassis Cab and Ram 2500 vehicles. The outboard steering linkage jam nut may loosen, allowing one end of the drag link to separate. Remedy: Chrysler will notify owners, and dealers will check the steering linkage jam nut tightness, replacing the drag link assembly or welding the nut to the adjuster sleeve, free of…

18E096000Steering:LinkagesReported 16/10/2018

Streetcar ORV LLC (Streetcar) is recalling certain American Expedition Vehicles (AEV) 3" Dualsport aftermarket suspension kits, part numbers N0436000 and N0436001, sold for installation on 2013-2018 RAM 2500 and 3500HD… Remedy: Streetcar will notify owners and dealers will inspect and install a new steering knuckle, free of charge. The recall began December 3, 2018. Owners may contact AEV customer…

Technical service bulletins NHTSA · verified

Showing 5 of 522 bulletins on record with NHTSA.

BulletinDateComponentSummary
S1203000003 REV.A2026-06-26Service BrakesTrac-Rite Operation Diagnosis, Chatter, Shudder, Moving From A Stop And Turning
1129062026-06-17EngineBEARING - CRANKSHAFT THRUST and KIT
1129062026-06-17EngineBEARING - CRANKSHAFT THRUST and KIT
S1623000028 Rev. K2026-06-12Electrical SystemOutside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window…
S1623000028 REV.J2026-06-05StructureOutside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

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VIN
Decode a VIN to confirm the transmission and build data for a specific 3500. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Frequently asked

How much oil does the 2015 3500 6.4L take?

7.0 qt of Full synthetic engine oils that meet the American Petroleum Institute categories of SN. The manufacturer recommends the use of Pennzoil UltraTM 0W-40 or equivalent MOPAR engine oil meeting the requirements of Chrysler Material Standard MS-12633 for use in all operating temperatures., per the factory manual.

Does the 2015 3500 have open recalls?

NHTSA lists 16 recall campaign(s) for this model year. Check your specific vehicle by VIN.