Ram 1500 Bolt Pattern, Center Bore & Wheel Offset (2013–2027)
Ram 1500 wheel fitment: 6x139.7 bolt pattern, 77.8mm center bore (2019–2027); 5x139.7 bolt pattern, 77.8mm center bore (2013–2014). OE wheel sizes and offsets
- 6x139.7bolt pattern (PCD), most common
- 77.8 mmcenter bore
- M14x1.5 Nutwheel bolt / nut
- 9 guidesmodel years 2013–2027
Bolt pattern by generation
- 6x139.7, 77.8 mm center bore — 2019–2027 (6 variants)
- 5x139.7, 77.8 mm center bore — 2013–2014 (3 variants)
Ram 1500 wheel specs by year and trim
| Year | Model / trim | Bolt pattern | Center bore | OE wheel |
|---|---|---|---|---|
| 2027 | Ram 1500 SRT TRX | 6x139.7 | 77.8 mm | 18x9.0J |
| 2025 | Ram 1500 | 6x139.7 | 77.8 mm | 20x9.0J |
| 2024 | Ram 1500 TRX 6.2L Supercharged V8 Final Edition | 6x139.7 | 77.8 mm | 18x9.0J |
| 2023 | Ram 1500 TRX Havoc Edition | 6x139.7 | 77.8 mm | 18x9.0J |
| 2021 | Ram 1500 TRX | 6x139.7 | 77.8 mm | 18x9.0J |
| 2019 | Ram 1500 | 6x139.7 | 77.8 mm | 20x9.0J |
| 2014 | Ram 1500 | 5x139.7 | 77.8 mm | 20x9.0J |
| 2013 | Ram 1500 | 5x139.7 | 77.8 mm | 20x8.0J |
| 2013 | Ram 1500 Black Express | 5x139.7 | 77.8 mm | 20x8J ET19 |
Factory wheel sizes on the Ram 1500
Across the 9 Ram 1500 trims with a documented factory wheel, the OE diameter is 18-20 inch, width 8-9J and offset ET19. A forged wheel that keeps the bolt pattern and hub bore of your generation (see the table above) and stays inside that offset range bolts on without spacers or hub rings. Going one inch up in diameter with a lower-profile tyre keeps the rolling circumference inside the usual 1.5% tolerance; every extra 0.5J of width moves the outer lip about 6 mm outward at the same offset, and each 5 mm less offset moves the whole wheel 5 mm outward.
Forged wheels for the Ram 1500 (6x139.7)
Shop all Ram 1500 forged wheels →
Get a quote for Ram 1500 wheels
Vehicles With the Same Hub as the Ram 1500 (6x139.7, 77.8 mm Bore)
In our database, 20 other vehicle entries from 4 makes use exactly the same 6x139.7 bolt pattern and 77.8 mm center bore. Factory wheels from these cars bolt on and center on the hub without rings; offset and width still have to be checked.
6x139.7 is used by 4.0% of the vehicle pages in our English fitment guide (258 of 6,503); 12.4% of those also use a 77.8 mm center bore.
Offset and Backspacing: Factory Wheel vs Options
Backspacing ≈ width/2 + ET/25.4 + 0.5 in. "Inward" means closer to the suspension; "outward" means closer to the fender lip.
| Setup | Size | ET | Backspacing | Inward vs OE | Outward vs OE |
|---|---|---|---|---|---|
| Factory (OE) | 18x9J | ET19 | 5.75 in (146 mm) | — | — |
| Flush | 18x9J | ET0 | 5.00 in (127 mm) | −19 mm | +19 mm |
| Maximum | 20x10J | ET-18 | 4.79 in (122 mm) | −24 mm | +50 mm |
Hub-Centric Rings for a 77.8 mm Center Bore
A wheel with a center bore larger than 77.8 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 78.1 mm | 78.1 → 77.8 mm |
| 84.1 mm | 84.1 → 77.8 mm |
| 93.1 mm | 93.1 → 77.8 mm |
| 100.1 mm | 100.1 → 77.8 mm |
ANKUSI forged wheels are bored to exactly 77.8 mm for this vehicle, so no ring is needed.
Sources and Last Update
Bolt pattern and center bore were checked against at least two independent fitment references before publication.
This record is part of the open ANKUSI Wheel Fitment Dataset (DOI 10.5281/zenodo.23241521, CC BY 4.0).
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.
FAQ
What is the bolt pattern on a Ram 1500?
The Ram 1500 uses a 6x139.7 bolt pattern on most variants we cover with a 77.8mm center bore. Other generations use 5x139.7 / 77.8mm (2013–2014). Always check the exact year and trim before ordering.
What is the Ram 1500 center bore?
The hub-centric center bore is 77.8 mm on the most common generation; see the table for variants. Aftermarket wheels should match this bore or use hub-centric rings so the hub, not the bolts, carries the load.
Do all Ram 1500 years share the same wheel fitment?
No. The bolt pattern or center bore changed between generations, so wheels are not interchangeable across all years. Use the year-by-year table on this page to pick the right specification.
Which forged wheels fit the Ram 1500?
Any wheel drilled 6x139.7 with a 77.8mm hub bore in the offset range shown on the model guide. ANKUSI forges wheels to order for this exact specification, in 14–24 inch diameters, so no adapters or hub rings are needed.