DodgeRAM 1500 Pickup20083.7L/dodge/ram-1500-pickup/2008/3-7l/
DR platform

2008 Dodge RAM 1500 Pickup — 3.7L

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2008 RAM 1500 Pickup 3.7L.

Body TRUCKEngine 3.7LTransmission Automatic 4-spd

The 2008 RAM 1500 Pickup is a full-size truck riding on the DR platform, equipped with a 3.7L engine and a 4-speed automatic transmission. It achieves EPA-estimated fuel economy of 14 mpg city, 19 highway, and 16 combined, while its engine oil system takes 5 quarts of 5W-20 with a filter. In terms of reliability, this model year accumulated 578 owner complaints—most commonly concerning the air bags—and was subject to 12 recalls, signaling a period of notable owner-reported issues.

Model year201020082002

Quick specs

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

Engine oil capacity5 qt w/ filterOEM · verified
Engine oil type5W-20 APIOEM · verified
Lug nut torque135 ft-lbsOEM · verified
EPA fuel economy14/19/16 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI 65 · 600 CCA battery, OE oil filter 04884899AC. 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 65 · 600 CCAOEM · verified
Tire sizeP245-70R17OEM · verified
Wheel / rim8 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter04884899AC alt 04781452BF
Engine air filter68441763AA
Spark plugSPFR8TI332 alt SPFR8TE2AA
Front wiper blades55077100AE
Thermostat68174083AA alt 52028898AJ

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic 4-spd

Dimensions & weight NHTSA vPIC

Overall length218.9 in
Overall width71.7 in
Overall height68.5 in
Wheelbase131.1 in
Curb weight4295 lb
Track (front / rear)63 / 63 in
Weight distribution (front / rear)58/42

Ratings & economy EPA / vPIC

EPA city / highway / combined14 / 19 / 16 mpg
DrivetrainRear-Wheel Drive
Recommended fuelRegular Gasoline

Service quick specs OEM factory data

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

This engine holds 5 qt w/ filter of 5W-20 API engine oil, SYNTHETIC · 75W-90 · GL-5 in the differential, DOT 3 brake fluid. Torque lug nuts to 135 ft-lbs, the oil drain plug to 25.0 ft-lbs. The firing order is 1-8-4-3-6-5-7-2.

Lubricants & capacities

Automatic Transmission FluidATF+4
Automatic Transmission Fluid Capacity4
Automatic Transmission FluidATF+4
Automatic Transmission Fluid Capacity6.5
Automatic Transmission FluidATF+4
Automatic Transmission Fluid Capacity5.5
Brake FluidDOT 3
Differential Gear OilSYNTHETIC · 75W-90 · GL-5

Engine torques

Camshaft Bearing/Carrier Cap Bolts or Studs8.3 ft-lbs
Crankshaft Pulley and/or Damper Bolts130 ft-lbs
Engine Flywheel Bolts70 ft-lbs
Intake Manifold to Engine Bolts8.8 ft-lbs
Exhaust Manifold to Cylinder Head Bolts18 ft-lbs
Intake Manifold to Engine Bolts21 ft-lbs
Exhaust Manifold to Cylinder Head Bolts17 ft-lbs
Engine Oil Pan Drain Plug25.0 ft-lbs

Chassis torques

Leaf Spring to Axle (U-bolts)110.0 ft-lbs
Lug Nuts135 ft-lbs
Transfer Case Fill Plug15.0-22.0 ft-lbs
Transfer Case Drain Plug15.0-22.0 ft-lbs

Ignition

Cylinder Firing Order1-2-3-4-5-6
Cylinder Firing Order1-8-4-3-6-5-7-2
Spark Plug ManufacturerChampion
Spark Plug Gap0.043 in
Spark Plug Torque20.0 ft-lbs

Battery & A/C

RefrigerantR134a
Oil GroupPAG
Oil Type46
Standard BCI Group Number65
Standard BCI Cranking Performance600 cca

Service checks

Pressure Test15 psi
Radiator Cap Pressure Relief14-18 psi
Thermostat Opening Temperature192-199 °F
Regulated Fuel System Pressure (With Vacuum)56.0-60.0 psi
Injector Primary Resistance12+-0.6 @ 68 degreesF ohms
Engine Compression100
Engine Compression100
Engine Oil Pressure25-110 psi

Brakes

Torque Caliper to Bracket24 ft-lbs / 22 ft-lbs
Torque to Knuckle130 ft-lbs / 145 ft-lbs
Rotor Max Parallel Variation0.0005 in
Rotor Runout Limit0.002 in
Rotor Nominal Thickness From1.102 in / 0.86 in
Rotor Nominal Thickness To1.102 in / 0.86 in
Rotor Discard at or Under1.039 in / 0.803 in

Multi-step torque procedures OEM · verified

Connecting Rod (Large End) Bearings — tightening sequence 1 stages
120 ft. lbs., Step 2: 9020 ft. lbs
Main Bearings — tightening sequence 5 stages

Prep Install the bedplate retaining bolts, making sure to place the stud bolts in the correct location, Torque the bolts in the sequence shown.

1Hand tighten bolts 1D, 1G and 1F until the bedplate contacts the block.
2Tighten bolts 1A - 1J to 40 ft. lbs.40 ft. lbs
3Tighten bolts 1 - 8 to 5 ft. lbs.5 ft. lbs
4Turn bolts 1 - 8 an additional 90 degrees.90 degrees
5Tighten bolts A - E 20 to 20 ft. lbs.20 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 6,000 mi; spark plugs every 30,000 mi; coolant at 102,000 mi. The big-interval services (at 102,000 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 6,000 miBrake Line (inspect) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate) · Transmission Assembly (inspect fluid level)
At 12,000 miCV Joint Boot (inspect) · Exhaust System (Complete) (inspect)
Every 12,000 miBrake Linings (inspect)
Every 18,000 miDifferential (inspect fluid level)
Every 24,000 miCV Joint Boot (inspect) · Exhaust System (Complete) (inspect) · Steering Linkage (inspect) · Suspension System (inspect)
Every 30,000 miEngine Air Filter Element (replace) · Spark Plugs (replace) · Transfer Case Assembly (inspect fluid level)
Every 90,000 miPCV Valve (inspect)
At 102,000 miEngine Coolant System (drain, flush & refill)
At 120,000 miDrive Belt (replace) · Transmission Fluid & Filter (replace)

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.

Owner complaints about the 2008 Dodge RAM 1500 Pickup lead in one area — the air bags, 142 of 578 reports (25%), well ahead of the next concern. That matters, because the air bags are also the target of recalls 15V-313 and 16V-352 on this vehicle — so the single most useful check before buying or servicing one is confirming they were actually performed. 44 of the reports describe a crash and 7 a fire — a small share of the total, but worth weighing against the air bags pattern above. These are tallies of what owners actually reported to the federal government, not an editorial score — and higher-selling models naturally rack up more reports.

12
Open recalls
NHTSA campaigns
57
Service bulletins
Manufacturer communications
3
ODI investigations
Office of Defects Investigation
578
Owner complaints
44 involved a crash · 7 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Rollover★★★★

Owner complaints filed with NHTSA, by component

All 578 complaints on record, top 8 components.

Air Bags142
Steering63
Power Train54
Fuel/Propulsion System36
Suspension23
Electrical System23
Engine16
Fuel System, Gasoline12

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 8 campaigns on record for this vehicle.

15V313000Air Bags:Frontal:Driver Side:Inflator ModuleReported 27/05/2015

Chrysler (FCA US LLC) is recalling certain model year 2005-2009 Dodge Ram 2500, 2004-2008 Dodge Ram 1500 and Durango, 2006-2009 Dodge Ram 3500, 2008-2010 Dodge Ram 4500 and 5500, 2007-2008 Chrysler Aspen, 2005-2010… Remedy: Owners are advised not to drive their vehicle until the recall repair is complete. Chrysler will notify the affected Chrysler and Dodge owners and Mitsubishi will notify the…

16V352000Air Bags:Frontal:Passenger Side:Inflator ModuleReported 24/05/2016

Chrysler (FCA US LLC) expanded the affected population to include 73,712 2005-2009 RAM 2500 trucks produced at the St. Louis North Assembly Plant. With this change, Chrysler is recalling certain model year 2004-2008 RAM… Remedy: Owners are advised not to drive their vehicle until the recall repair is complete. Chrysler will notify the Chrysler, Dodge, Jeep and RAM owners. Mitsubishi owners will be…

Technical service bulletins NHTSA · verified

Showing 5 of 57 bulletins on record with NHTSA.

BulletinDateComponentSummary
1037742025-05-01Electrical SystemLAMP - DOME
1012322024-10-29Power TrainPlate - Planetary
91002262023-09-15Electrical SystemConnector kit Before ordering this connector repair kit 68018957A$, check it in the Mopar…
91002262023-09-15Electrical SystemConnector kit Before ordering this connector repair kit 68018957A$, check it in the Mopar…
90040092021-04-07Power TrainTransmission Kit with Torque Converter 1. All Promaster (VF) 3.6L/62TE equipped vehicles…

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

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific RAM 1500 Pickup. 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 2008 RAM 1500 Pickup 3.7L take?

5 qt w/ filter of 5W-20 API MEETING CHRYSLER SPECIFICATION MS-6395, per the factory manual.

Does the 2008 RAM 1500 Pickup have open recalls?

NHTSA lists 12 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the 3.7L get?

EPA figures are 14 city / 19 highway / 16 combined mpg.