DodgeRAM Van, Wagon19985.9L/dodge/ram-van-wagon/1998/5-9l/
AB platform

1998 Dodge RAM Van, Wagon — 5.9L

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1998 RAM Van, Wagon 5.9L.

Engine 5.9L

The 1998 Dodge RAM Van and Wagon, built on the AB platform and powered by a 5.9L engine, requires 5.0 quarts of 10W-30 or 5W-30 API oil. With 27 owner complaints logged—predominantly centered on the electrical system—and just one recall, this model year occupies a middle ground in the nameplate’s reliability history, meaning that while it avoids widespread recall campaigns, prospective owners should still scrutinize the electrical components closely.

Quick specs

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

Engine oil capacity5.0 qtOEM · verified
Engine oil type10W-30 / 5W-30 APIOEM · verified
Lug nut torque80-110 ft-lbsOEM · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI 27 · 600 CCA battery, OE oil filter 05281090AB. Note the factory engine air filter, fuel filter and front wiper blades are now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known. 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 27 · 600 CCAOEM · verified
Tire size6400 GVWROEM · verified
Wheel / rim9 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter05281090AB
Engine air filter05016646AA discontinued
Fuel filter04798825AD discontinued
Spark plug68303921AA
BatteryBB27F101AA
Front wiper blades55076885AB discontinued
Serpentine belt53010305AC alt 53010306AB
Thermostat52028185AC alt 53021051AB

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length240.2 in
Overall width79.5 in
Overall height71.7 in
Wheelbase154.7 in
Curb weight4795 lb
Track (front / rear)66.5 / 66.9 in

Service quick specs OEM factory data

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

This engine holds 5.0 qt of 10W-30 / 5W-30 API engine oil, 75W-90 · GL-5 in the differential, DOT 3 brake fluid. Torque lug nuts to 80-110 ft-lbs, the oil drain plug to 44.0 ft-lbs. The firing order is 1-10-9-4-3-6-5-8-7-2.

Lubricants & capacities

Brake FluidDOT 3
Differential Gear Oil75W-90 · GL-5
Differential Gear Oil Capacity7.5 Pints, non_mvc
Differential Gear Oil80W-90 · GL-5
Differential Gear Oil Capacity7.6 Pints,
Differential Gear Oil75W-90 · GL-5
Differential Gear Oil Capacity4 Pints,
Engine CoolantETHYLENE GLYCOL

Engine torques

Connecting Rod (Large End) Bearings48 ft-lbs
Cylinder Head StepsStep 1 -
Engine Flywheel Bolts100 ft-lbs
Engine Flywheel Bolts55 ft-lbs
Exhaust Manifold to Cylinder Head Bolts18 ft-lbs
Exhaust Manifold to Cylinder Head Bolts25 ft-lbs
Engine Oil Pan Drain Plug25.0 ft-lbs
Engine Oil Pan Drain Plug44.0 ft-lbs

Chassis torques

Leaf Spring to Axle (U-bolts)6010
Leaf Spring to Chassis Bracket6010
Leaf Spring to Rear Shackle6010
Leaf Spring Rear Shackle to Chassis Bracket6010
Lug Nuts80-110 ft-lbs
Transfer Case Fill Plug30.0-40.0 ft-lbs
Transfer Case Drain Plug30.0-40.0 ft-lbs
Front Wheel Hub180 ft-lbs

Ignition

Cylinder Firing Order1-8-4-3-6-5-7-2
Cylinder Firing Order1-10-9-4-3-6-5-8-7-2
Curb Idle Speed (No Load)700 rpm
Curb Idle Speed Variance (No Load)200 rpm
Spark Plug ManufacturerChampion
Spark Plug TypeRC12LC4
Spark Plug Gap0.040 in
Spark Plug Torque30.0 ft-lbs

Battery & A/C

RefrigerantR134a
Oil GroupPAG
Oil TypeSP-15
Standard BCI Group Number27
Standard BCI Cranking Performance600 cca
Optional BCI Group Number27
Optional BCI Cranking Performance750 cca
Standard BCI Group Number27

Service checks

Pressure Test15 psi
Radiator Cap Pressure Relief14-20 psi
Thermostat Opening Temperature192-199 °F
Pressure Test15 psi
Radiator Cap Pressure Relief14-18 psi
Fuel Pump Pressure Minimum54.0 psi
Regulated Fuel System Pressure (With Vacuum)44.0-54.0 psi
Regulated Fuel System Pressure (With Vacuum)25.0 psi

Brakes

Brake ApplicationWITH 12 inch DRUM / WITH STANDARD
Torque Caliper to Bracket24 ft-lbs
Torque to Knuckle210 ft-lbs / 130 ft-lbs / 38 ft-lbs
OtherHeavy Duty
Torque to Knuckle38 ft-lbs
Torque to Knuckle38 ft-lbs
OtherLight Duty / Heavy Duty
Torque to Knuckle38 ft-lbs

Multi-step torque procedures OEM · verified

Connecting Rod (Large End) Bearings — tightening sequence 1 stages
126 ft. lbs., Step 2: 51 ft. lbs., Step 3: 7326 ft. lbs
Cylinder Head — tightening sequence 2 stages

Prep Do not reuse old bolts. Coat new bolts with the specified engine oil.

150.0 ft. lbs.50 ft. lbs
2105.0 ft. lbs.105 ft. lbs
Intake Manifold to Engine Bolts — tightening sequence 1 stages
16 ft. lbs. ( 1 ft. lb. at a time.), step 2: bolts 5-12: 6 ft. lbs., step 3: all to 6 ft. lbs., step 4: all to 12 ft. lbs., step 5: all to 126 ft. lbs
Intake Manifold to Engine Bolts — tightening sequence 1 stages
16 ft. lbs. ( 1 ft. lbs. at a time.), step 2: bolts 5-12: 6 ft. lbs., step 3: all to 6 ft. lbs., step 4: all to 12 ft. lbs., step 5: all to 126 ft. lbs
Main Bearings — tightening sequence 1 stages
144 ft. lbs., Step 2: 60 ft. lbs., Step 3: 9044 ft. lbs
Oil Pump to Cylinder BLock Bolts/Studs — tightening sequence 1 stages
17 ft. lbs., Step 2: 187 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 7,500 mi; coolant every 30,000 mi. The big-interval services (every 30,000 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) · CV Joint Boot (inspect) · Differential (inspect fluid level) · Driveshaft U-Joint (lubricate) · Engine Coolant System (leak inspection) · Exhaust System (Complete) (inspect)
Every 7,500 miEngine Oil (drain & refill) · Fuel Line (inspect) · Suspension Control Arm Bushings (inspect)
Every 12,000 miFuel Filter (replace) · Water Pump (inspect)
Every 15,000 miAccessory Drive Belt (inspect) · Brake Pedal Assembly (lubricate pivot points)
Every 18,000 miAccessory Drive Belt (inspect) · Brake Linings (inspect)
Every 22,500 miSuspension Ball Joint (inspect)
Every 24,000 miBands (adjust) · Crankshaft Vibration Damper (inspect) · Engine Air Filter Element (replace) · Engine Breather Filter (clean) · Engine Valves (inspect valve lash) · Radiator Fan Clutch (inspect)
Every 30,000 miEngine Coolant System (drain, flush & refill)
Every 48,000 miIntake Air Temperature Sensor (inspect)

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 1998 Dodge RAM Van, Wagon top in one area — the electrical system, 4 of 27 reports (15%), well ahead of the next concern. None of this vehicle's 1 recall campaigns target the electrical system, so those reports read as owner-reported wear-and-tear rather than an acknowledged defect. 0 of the reports describe a crash and 5 a fire — a small share of the total, but worth weighing against the electrical system 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.

1
Open recalls
NHTSA campaigns
84
Service bulletins
Manufacturer communications
1
ODI investigations
Office of Defects Investigation
27
Owner complaints
0 involved a crash · 5 a fire

Owner complaints filed with NHTSA, by component

All 27 complaints on record, top 8 components.

Electrical System4
Service Brakes, Hydraulic3
Service Brakes, Hydraulic,Electrical System2
Air Bags2
Power Train2
Visibility2
Steering,Suspension,Structure1
Steering,Suspension,Unknown Or Other1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 1 of 1 campaigns on record for this vehicle.

98V076000Seats:Front Assembly:Power AdjustReported 08/04/1998

VEHICLE DESCRIPTION: PASSENGER VEHICLES BUILT WITH POWER SEAT OPTION. THE DRIVER'S SIDE FRONT SEAT ATTACHING RISER WELDS WERE NOT CORRECT. Remedy: DEALERS WILL REPLACE THE DRIVER'S SIDE POWER FRONT SEAT RISE WITH A RISER THAT WAS MIG WELDED.

Technical service bulletins NHTSA · verified

Showing 5 of 84 bulletins on record with NHTSA.

BulletinDateComponentSummary
90042752020-07-22Electrical SystemKEY, Master If replacing the key/FOBIK on a WJ, KJ, TJ, or PT Cruiser, use the "AC" NIC…
90042752020-07-22Electrical SystemKEY, Master If replacing the key/FOBIK on a WJ, KJ, TJ, or PT Cruiser, use the "AC" NIC…
08-049-202020-04-22Electrical SystemCharging System, Battery Diagnostic Tools and Warranty This information only bulletin…
31005192019-11-20StructureUse of Aftermarket Parts This bulletin involves discussing FCA US LLC position with…
31006192019-11-20StructureRepair Parts Used For Structural Repairs This bulletin involves discussing FCA US LLC…

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 Van, Wagon. 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 1998 RAM Van, Wagon 5.9L take?

5.0 qt of Above 0 F: 10W-30 API, Below 32 F: 5W-30 API, per the factory manual.

Does the 1998 RAM Van, Wagon have open recalls?

NHTSA lists 1 recall campaign(s) for this model year. Check your specific vehicle by VIN.