2018 RAM 3500 Dimensions, Sizes & Specifications
Based on 26 trims — exact values when identical, ranges when trims differ. Generation: Fourth generation (DS/DJ/D2) - Facelift.
- Length230.4 in – 259.3 in
- Width79.4 in
- Height77.7 in – 79.8 in
- Wheelbase140.0 in – 169.5 in
- Ground clearance7.3 in – 8.7 in
- Curb weight6,022 lb – 7,217 lb
- Length230.4 in – 259.3 in
- Height77.7 in – 79.8 in
- Wheelbase140.0 in – 169.5 in
- Ground clearance7.3 in – 8.7 in
- Curb weight6,022 lb – 7,217 lb
- Width79.4 in
Proportional exterior silhouette from catalog length, width and height. The explorer below is a systems map — different purpose, not a second silhouette.
Explore your 2018 RAM 3500
Interactive systems diagram for this model year — measure, check fitment, and open the matching SpecSizes tools. Schematic only; not photorealistic body styling.
- Dimensions
- Wheels
- Tires
- Wipers
- Battery
- Oil
- Interior
Available for this vehicle
- Dimensions
- Wheels
- Tires
- Wipers
- Battery
- Oil
- Interior
Select a system below or on the diagram. This schematic marks measurement areas — it is not body-accurate styling.
Catalog summaries
Exterior: 230.4 in – 259.3 in · 79.4 in · 77.7 in – 79.8 in. Full dimensions
Wheels: bolt pattern 8x165.1, bore 120.9 mm. Wheel sizes
Tires: LT275/70SR18.0E BSW AS, 235/80R17, 275/70R18, 285/60R20…. Tire sizes
What do you want to check?
- Compare this vehicleSize vs a competitor
- See size by yearModel history & chart
- Will it fit in my garage?Door & bay clearance calculator
- Find cars similar in sizeExterior length, width & height neighbors
- Browse cars by sizeReverse-search by length, width & height
- Check tire sizeOEM tire sizes
- Check wiper sizeBlade lengths
- Check battery sizeGroup size
- Check oil capacityCapacity & viscosity
- Check wheel sizeBolt pattern, bore, offset
- Wheel fitment & interchangeCompare donor or custom wheels
Exterior dimensions
| Length | 230.4 in – 259.3 in |
|---|---|
| Width | 79.4 in |
| Height | 77.7 in – 79.8 in |
| Wheelbase | 140.0 in – 169.5 in |
| Ground clearance | 7.3 in – 8.7 in |
Interior dimensions
| Front headroom | 40.0 in – 41.0 in |
|---|---|
| Rear headroom | 40.0 in |
| Front legroom | 41.0 in |
| Rear legroom | 40.3 in – 43.3 in |
| Front shoulder room | 66.0 in |
| Rear shoulder room | 66.0 in |
| Front hip room | 63.0 in |
| Rear hip room | 63.0 in |
Weight & capacities
| Curb weight | 6,022 lb – 7,217 lb |
|---|---|
| GVWR | 10,100 lb – 11,400 lb |
| Fuel tank | 31.0 gal – 32.0 gal |
| Max towing capacity | 10,000 lb – 12,000 lb |
Engine
- 1873 1914
- 1872 1914
| Torque | 400 – 429 lb-ft |
|---|
Torque shown in lb-ft as stored in the catalog.
Wheels, tires & maintenance sizes
Tire sizes Full tire size page → · Wheel fitment →
- LT275/70SR18.0E BSW AS
- 235/80R17
- 275/70R18
- 285/60R20
- 305/45R22
Wiper sizes Full wiper size page →
- Driver22"
- Passenger22"
Battery group size Full battery size page →
- 94RH7
- H7-AGM
Oil capacity Full oil capacity page →
- 5W-207 qt
- 0W-407 qt
- 5W-4012 qt
Trim-by-trim dimensions (26 trims)
| Trim | Length | Width | Height | Wheelbase | Clearance | Curb wt |
|---|---|---|---|---|---|---|
| Laramie 4x2 Crew Cab 149.5 in. WB SRW | 237.4 | 79.4 | 78.4 | 149.5 | 7.3 | 6552 |
| Laramie 4x2 Crew Cab 169.5 in. WB | 259.3 | 79.4 | 78.2 | 169.5 | 7.3 | 6648 |
| Laramie 4x2 Mega Cab 160.5 in. WB | 248.4 | 79.4 | 78.3 | 160.5 | 7.3 | 6780 |
| Laramie 4x4 Crew Cab 149.5 in. WB SRW | 237.4 | 79.4 | 79.8 | 149.5 | 8.6 | 6925 |
| Laramie 4x4 Crew Cab 169.5 in. WB | 259.3 | 79.4 | 79.6 | 169.5 | 8.6 | 7071 |
| Laramie 4x4 Mega Cab 160.5 in. WB | 248.4 | 79.4 | 79.7 | 160.5 | 8.7 | 7109 |
| Laramie Longhorn 4x2 Crew Cab 149.5 in. WB SRW | 237.4 | 79.4 | 78.4 | 149.5 | 7.3 | 6586 |
| Laramie Longhorn 4x2 Crew Cab 169.5 in. WB | 259.3 | 79.4 | 78.2 | 169.5 | 7.3 | 6746 |
| Laramie Longhorn 4x2 Mega Cab 160.5 in. WB | 248.4 | 79.4 | 78.3 | 160.5 | 7.3 | 6897 |
| Laramie Longhorn 4x4 Crew Cab 149.5 in. WB SRW | 237.4 | 79.4 | 79.8 | 149.5 | 8.6 | 7005 |
| Laramie Longhorn 4x4 Crew Cab 169.5 in. WB | 259.3 | 79.4 | 79.6 | 169.5 | 8.6 | 7151 |
| Laramie Longhorn 4x4 Mega Cab 160.5 in. WB | 248.4 | 79.4 | 79.7 | 160.5 | 8.7 | 7217 |
| SLT 4x2 Crew Cab 149.5 in. WB SRW | 237.4 | 79.4 | 78.4 | 149.5 | 7.3 | 6458 |
| SLT 4x2 Crew Cab 169.5 in. WB | 259.3 | 79.4 | 78.2 | 169.5 | 7.3 | 6555 |
| SLT 4x2 Mega Cab 160.5 in. WB | 248.4 | 79.4 | 78.3 | 160.5 | 7.3 | 6661 |
| SLT 4x2 Regular Cab 140 in. WB | 230.4 | 79.4 | 77.7 | 140.0 | 7.3 | 6053 |
| SLT 4x4 Crew Cab 149.5 in. WB SRW | 237.4 | 79.4 | 79.8 | 149.5 | 8.6 | 6784 |
| SLT 4x4 Crew Cab 169.5 in. WB | 259.3 | 79.4 | 79.6 | 169.5 | 8.6 | 6951 |
| SLT 4x4 Mega Cab 160.5 in. WB | 248.4 | 79.4 | 79.7 | 160.5 | 8.7 | 6945 |
| SLT 4x4 Regular Cab 140 in. WB | 230.4 | 79.4 | 79.1 | 140.0 | 8.6 | 6384 |
| Tradesman 4x2 Crew Cab 149.5 in. WB SRW | 237.4 | 79.4 | 78.4 | 149.5 | 7.3 | 6412 |
| Tradesman 4x2 Crew Cab 169.5 in. WB | 259.3 | 79.4 | 78.2 | 169.5 | 7.3 | 6524 |
| Tradesman 4x2 Regular Cab 140 in. WB | 230.4 | 79.4 | 77.7 | 140.0 | 7.3 | 6022 |
| Tradesman 4x4 Crew Cab 149.5 in. WB SRW | 237.4 | 79.4 | 79.8 | 149.5 | 8.6 | 6732 |
| Tradesman 4x4 Crew Cab 169.5 in. WB | 259.3 | 79.4 | 79.6 | 169.5 | 8.6 | 6909 |
| Tradesman 4x4 Regular Cab 140 in. WB | 230.4 | 79.4 | 79.1 | 140.0 | 8.6 | 6370 |
Values in inches / pounds as stored. Ranges above reflect trim variation.
Same generation (Fourth generation (DS/DJ/D2) - Facelift): years 2013–2018. View model overview