6.7L Cummins ISB Service Information

6.7L Cummins Maintenance schedule, Fluid Specs/Capacities, & Service Part Numbers

"Severe" driving conditions includes any or any combination of the following:

• Excessive idling
• Frequent short trips or start-shutdown cycles in which the engine does not reach full operating temperature
• Driving in dusty environments
• Driving off-road or in conditions that require the use of 4 wheel drive
• Frequent towing or hauling

6.7L Cummins Maintenance Schedule

Note - All service intervals are the maximum recommended period before the service procedure should be performed. Always adhere to the OEM recommendations regarding alternative maintenance schedules for vehicles falling under the "severe duty" or "heavy duty" conditions. If unsure which service category your vehicle falls under, follow the "severe" maintenance schedule. Always mind the factory service monitoring system and perform maintenance as prompted.

Service Procedure

Interval(s)

Notes/Comments

Replace engine air filter

30,000 miles/24 months

Inspect at oil change intervals & replace as necessary; replace regardless at 30,000 mi/24 mo.

Change engine oil & oil filter

2007.5 - 2012

7,500 miles/6 months

Maximum oil change intervals listed; replace engine oil as prompted by the oil change indicator. Do not exceed 12,500 mi/6 mo/400 hrs when running a biodiesel concentration greater than B5.

2013 - 2019

15,000 miles/6 months/500 hours

Replace crankcase ventilation (CCV) filter

 

2007.5 - 2018

67,500 miles/54 months

Replace as indicated by vehicle display; do not exceed listed intervals.

2019+

75,000 miles/60 months

Replace fuel filters

15,000 miles/12 months

Engine & chassis mounted fuel filters

Replace serpentine drive belt

---

Inspect drive belt condition at oil change intervals & replace as necessary; recommend replacing belt ~ 100,000 mi regardless

Flush engine cooling system

2007.5 - 2012

97,500 miles/60 months

Flush cooling system & perform full cooling system service; replace upper/lower radiator hoses, radiator cap (if applicable), thermostat.

2013 - 2019

150,000 miles/120 months

Replace automatic transmission fluid & filter

68RFE

120,000 miles (normal)
60,000 miles (severe)

Replace transmission fluid, internal transmission filter, & external/auxiliary transmission filter (as applicable)

Aisin AS69RC

30,000 miles/24 months

Replace manual transmission fluid

120,000 miles (normal)
60,000 miles (severe)

Recommend "severe" interval for most driving conditions

Replace transfer case fluid

60,000 miles/48 months (normal)
30,000 miles/24 months (severe)

Adhere to "severe" interval if 4 wheel drive system is used frequently and/or vehicle is driven off-road.

Replace front differential fluid (4x4)

2007.5 - 2017

15,000 miles/12 months (severe)

Differential service only required if driving conditions place vehicle in "severe" service category (most vehicles will apply). Differentials should be inspected for leaks at oil change intervals. Fluid should be replaced anytime a leak is detected and immediately if axle/differential housing is submerged in water.

2018+

20,000 miles (severe)

Replace rear differential fluid

2007.5 - 2017

15,000 miles/12 months (severe)

2018+

20,000 miles (severe)

Check & adjust valve lash

2007.5 - 2018

150,000 miles

Valve lash adjustment not required on 2019 & newer models.

2019+

N/A

 

6.7L Cummins Service Part Numbers

Unless otherwise noted, part numbers are confirmed through 2019 model RAM 2500, 3500, 4500, 5500 models.

Engine air filter

Fleetguard AF27684, MOPAR 53034051AB

Engine oil filter

Fleetguard LF16035

Oil pan drain plug

MOPAR 68210509AA, MOPAR 05080631AB

Oil fill cap

MOPAR 68003321AA

Crankcase vent filter

MOPAR 68002433AB, Fleetguard CV520010

Fuel filter

2007.5 - 2009

Fleetguard FS43258, MOPAR 68061634AA

2010 - 2012

Fleetguard FS43255

2013 - 2019

MOPAR 68197867AA (chassis mounted separator/filter)

MOPAR 68157291AA, Fleetguard FS53000 (engine mounted filter)

Serpentine belt

2007.5 - 2012

Gates K081264 (single alt w/ AC)

2013 - 2019

MOPAR 4627751AA (single alt w/ AC)
MOPAR 4627589AA (dual alt w/ AC)

Belt tensioner

Gates 38285

Thermostat

2007.5 - 2009

Stant 14289

2010 - 2012

Stant 49212

2013 - 2019

Stant 14289

Thermostat housing gasket

MOPAR 5086740AA, Fel-Pro 35703

Radiator cap

2007.5 - 2010

Stant 10234, Gates 31525

2011 - 2012

Stant 10230, Gates 31528

Upper radiator hose

2007.5 - 2009

MOPAR 52028872AG, Gates 22892

2010 - 2012

MOPAR 55056954AB, Gates 23955

2013 - 2014

MOPAR 68166469AC (single Alt), MOPAR 68224266AB (dual alt)

2015 - 2018

MOPAR 68227796AA

Lower radiator hose

2007.5 - 2009

MOPAR 55056945AE, Gates 22893

2010 - 2012

MOPAR 55056955AA, Gates 23956

2013 - 2014

MOPAR 68166470AF

2015 - 2018

MOPAR 68227797AB

Water pump

2007.5 - 2012

Gates 42291

2013 - 2018

Gates 42133, MOPAR 68210961AA

Automatic transmission filter

2007.5 - 2009 68RFE

2WD sump filter: MOPAR 5015267AD

4WD sump filter: Fleetguard TF15072J (includes gasket)

External/auxiliary filter: MOPAR 5179267AC

2010 - 2018 68RFE

MOPAR 5013470AE

Aisin AS69RC

MOPAR 68224232AA

Transmission pan gasket

68RFE

Fel-Pro TOS18733

Aisin AS69RC

MOPAR 68214914AA

Front differential gasket

9.25" AAM

Fel-Pro RDS55474

Rear differential gasket

11.5" AAM

Fel-Pro RDS55473

2007 - 2017 Ram 2500/3500, 6.7L Cummins Fluid Specs & Capacities

Notes - All units of measure used herein refer to U.S. measurements.. All fluid capacities are nominal and to be used for the purpose of obtaining an adequate amount prior to service. Always bring fluid level to proper indicating marker on dipstick, bottom of fill plug hole, etc. Always recheck fluid levels after driving vehicle. Some fluid capacities may vary for chassis cab trucks; the following specifications are based on 2500/3500 pickup models.

Engine oil

2007.5 - 2018

SAE 15W-40, ambient temperature > 0° F

12 qts oil capacity w/ oil filter change

SAE 5W-40 full synthetic, all temps, required < 0° F

2019

SAE 10W-30, ambient temperature > 0° F

SAE 5W-40 full synthetic, all temps, required < 0° F

Engine cooling system

2007.5 - 2012

MOPAR 100,000 mile/5 year anti-freeze
50/50 distilled water & coolant
(MOPAR 68048953AB)

~ 5.7 gallons

2013 - 2019

MOPAR 150,000 mile/10 year antifreeze
50/50 distilled water & coolant
(MOPAR 68163848AB)

Automatic transmission fluid

68RFE 6 spd auto

MOPAR ATF+4 automatic transmission fluid
(MOPAR 5013457AA)

17.5 qts total capacity
~ 5.5 - 6.5 qts service refill

Aisin AS69RC 6 spd auto

MOPAR ASRC automatic transmission fluid
(MOPAR 5189966AB)

13.7 qts total capacity
~ 7.2 qts service refill

DEF tank capacity

2013 - 2019

5.5 gallons

Manual transmission fluid

G56 6 spd manual

MOPAR ATF+4 automatic transmission fluid
(MOPAR 5013457AA)

4.95 qts

Transfer case fluid

NV271/NV273

MOPAR ATF+4 automatic transmission fluid
(MOPAR 5013457AA)

2 qts

NV241/NV243/NV244

1.7 qts

BW44-46/BW44-47

MOPAR BW44-44 transfer case fluid
(MOPAR 68089195AA)

1.7 qts

Front differential fluid

9.25" AAM

2007.5 - 2012

SAE 75W-90 full synthetic GL-5 gear oil

2.45 qts

2013 - 2017

SAE 75W-85 full synthetic GL-5 gear oil

Magna 275

SAE 75W-90 full synthetic GL-5 gear oil

5.4 qts

Rear differential fluid

AAM 10.5"

2007.5 - 2012

SAE 75W-90 full synthetic GL-5 gear oil

2.65 qts

2013 - 2017

SAE 75W-85 full synthetic GL-5 gear oil

AAM 11.5"

2007.5 - 2012

SAE 75W-90 full synthetic GL-5 gear oil

3.8 - 4.50 qts

2013 - 2017

SAE 75W-85 full synthetic GL-5 gear oil