Custom Forged Wheels for the Ram Heavy Duty (8x165.1)

ANKUSI forges custom wheels for the Ram Heavy Duty, drilled 8x165.1 with a 121.3 mm hub-centric bore, so no hub rings or adapters are needed. The factory wheel size in our database is 18x8J ET42 (model year 2025).

Recommended wheel sizes for the Ram Heavy Duty

TypeSizeOffset
Factory (OE)18x8JET42
Flush18x9JET18
Max20x10JET0

Flush and max sizes are recommendations from our fitment database; check real clearance on your car before ordering. See bolt pattern and center bore by year for the Ram Heavy Duty

Forged wheels that can be drilled for the Ram Heavy Duty

Get a quote for Ram Heavy Duty wheels

Vehicles With the Same Hub as the Ram Heavy Duty (8x165.1, 121.3 mm Bore)

In our database, 2 other Dodge entries use exactly the same 8x165.1 bolt pattern and 121.3 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.

8x165.1 is used by 0.4% of the vehicle entries in our database (29 of 6,503); 27.6% of those also use a 121.3 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.

SetupSizeETBackspacingInward vs OEOutward vs OE
Factory (OE)18x8JET426.15 in (156 mm)——
Flush18x9JET185.71 in (145 mm)−11 mm+37 mm
Maximum20x10JET05.50 in (140 mm)−17 mm+67 mm

Hub-Centric Rings for a 121.3 mm Center Bore

A wheel with a center bore larger than 121.3 mm needs a hub-centric ring. The most common combinations:

Wheel boreRing size
130.1 mm130.1 → 121.3 mm

ANKUSI forged wheels are bored to exactly 121.3 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.

How to order

  1. Send your model, year and the size you want on WhatsApp.
  2. Our team confirms bolt pattern, center bore and offset for your car.
  3. The set is forged and machined to order in about 25 days, then shipped.

FAQ

How long do custom forged wheels for the Ram Heavy Duty take?

About 25 days of production after the specs are confirmed. Every wheel is drilled 8x165.1 with a 121.3 mm center bore.

What is the factory wheel size of the Ram Heavy Duty?

The factory size in our database is 18x8J ET42. It can vary by trim, so check your exact car before ordering.

What wheel size fits the Ram Heavy Duty flush?

We recommend 18x9J ET18 for a flush fit and 20x10J ET0 as the maximum. Check clearance before ordering.

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