2009 Dodge Ram 2500 Wheel Interchange

2009 Dodge Ram 2500 Wheel Fitment Guide | wheelinterchange.com

Known OEM Fitment For 2009 Dodge Ram 2500

The specifications below are provided data points for the 2009 Dodge Ram 2500. Factory equipment can vary by trim, brake package, and SRW vs DRW. If a value is not shown for your exact wheel or tire size, verify it on your door-jamb tire placard, in the owner’s manual, or by using the on-page calculator to compare setups.

Notes:

• The presence of a 245/70R17 tire size indicates some 2009 trucks were equipped with 17-inch wheels. Other OEM wheel and tire packages may exist. Confirm your truck’s exact factory size on the door placard.
• If your current or donor wheels differ, use the calculator to compare inner clearance, poke, and tire diameter change before you buy.

How To Use The Wheel Interchange Calculator

• Set “Installed on (your vehicle)” to 2009 Dodge Ram 2500.
• For “Wheels from (donor vehicle),” select the donor truck or manually enter its known wheel specs.
• Use “Custom wheel size” to enter rim diameter, width, and offset you plan to run. The tool will show changes in inner clearance to the suspension and outer poke versus your current setup.
• Use “Custom tire size” to try different section widths and aspect ratios. When you change rim diameter, the calculator updates tire diameter in the comparison so you can keep the overall tire height within your target range.
• Watch the tire diameter difference percentage. For daily driving without recalibration or trimming, many owners aim to keep overall tire diameter change within about 3 percent of stock. Verify what is acceptable for your use and local regulations.
• Compare backspacing. If you have the OEM 20x8 ET +50 package, the reference backspacing is 5.97 in. Try to keep new backspacing close unless you intentionally need more inner clearance or more outer poke, then verify fender and suspension clearance.
• If brake clearance is close, measure your brake package and consult wheel manufacturer templates when available.

Fitment Checklist Before You Buy

• Bolt pattern: Must match exactly at 8x165.1 mm. 8x170 mm wheels do not fit.
• Center bore: Truck hub is 121.3 mm. Aftermarket wheels with a larger bore require hub-centric rings sized to 121.3 mm inner diameter.
• Offset and backspacing: Use the calculator to compare your target wheel to the OEM reference. Large positive offset reduces outer poke but can reduce inner clearance to suspension and steering components.
• Load rating: Choose wheels and tires with load ratings that meet or exceed the truck’s GAWR and payload requirements shown on the door placard. Heavy-duty tires often require Load Range E or higher. Do not downrate.
• Brake and steering clearance: Verify caliper and tie-rod clearance. Turn lock-to-lock at ride height to check for contact.
• TPMS: If equipped, transfer or replace TPMS sensors compatible with your year. Relearn procedures vary by system.
• Lug nuts: Thread is M14x1.5. Seat type must match the wheel’s seat design. If the seat style is unknown, confirm with the wheel manufacturer or dealer. Do not mix seat types.
• Stud engagement: Aim for full nut engagement at least equal to the stud diameter. Avoid spacers unless hub-centric and properly engineered for the load.
• SRW vs DRW: Dual rear wheel trucks use different wheels and offsets. Do not interchange SRW and DRW wheels without OEM verification.

Plus Sizing And Common Upgrades

The provided data shows both 17-inch and 20-inch factory configurations for 2009. Owners often consider 18 to 20 inch upgrades with wider tires for stance and traction.

• Use the calculator to hold overall tire diameter near your stock reference so speedometer and gearing remain reasonable. If you increase diameter, expect changes to acceleration, braking, and speedometer accuracy.
• If increasing width or reducing offset for a wider stance, confirm outer fender clearance and inner clearance to upper control arms, sway bar, and wheel liners.
• Leveling kits and lift kits change clearance. Recheck with the calculator and measure at full steering lock and under compression.
• Maintain or exceed OEM load index when changing tire size. Choose the correct tire construction for towing, plowing, or off-road use.

Installation Tips

• Test fit each wheel on the hub before mounting tires. Verify that the wheel seats fully on the hub and clears the brakes.
• Clean rust and debris from the hub face and lug seats. A wire brush helps ensure proper seating.
• If the wheel bore is larger than 121.3 mm, install the correct hub-centric rings before mounting.
• Hand start all lug nuts to avoid cross-threading. Tighten in a crisscross pattern with a calibrated torque wrench to the OEM torque specification listed in your owner’s manual or service information.
• Inflate tires to the pressures on the door placard, unless a different pressure is specified for your exact tire size and load. Relearn or program TPMS if applicable.
• Re-torque lug nuts after 50 to 100 miles of driving and again after towing or hauling heavy loads.

Tools And Helpful Supplies

• 1/2 inch drive torque wrench: https://www.amazon.com/s?k=1%2F2+inch+drive+torque+wrench&tag=auto-spec-20
• Thin wall impact socket set for lug nuts: https://www.amazon.com/s?k=thin+wall+impact+socket+set&tag=auto-spec-20
• Wheel hub wire brush: https://www.amazon.com/s?k=wheel+hub+wire+brush&tag=auto-spec-20
• Anti-seize compound for hub faces and rotor hats: https://www.amazon.com/s?k=anti-seize+compound&tag=auto-spec-20

FAQs

What is the bolt pattern on a 2009 Dodge Ram 2500?
8x165.1 mm. This is the same as 8x6.5 inch.

What is the center bore?
121.3 mm. If your aftermarket wheel has a larger bore, use hub-centric rings sized to 121.3 mm on the inner diameter.

What is the lug thread size?
M14 x 1.5. Match this exactly and ensure the lug nut seat style matches the wheel’s seat design.

What OEM wheel and tire sizes were available?
Data provided includes a 20x8 wheel with ET +50 mm and backspacing 5.97 in, and an OEM tire size of 245/70R17. Other factory packages may exist. Check your door-jamb placard to confirm your truck’s original size.

Will 8x170 wheels fit?
No. 8x170 is a different bolt pattern. The Ram 2500 requires 8x165.1 mm.

How do I choose offset for an aftermarket wheel?
Use the calculator to compare your target wheel to the OEM reference. Try to keep inner clearance safe from suspension parts and avoid excessive outer poke. Backspacing close to the OEM reference helps maintain geometry, but always verify clearances on your truck.

Do I need hub-centric rings?
Only if the new wheel’s center bore is larger than 121.3 mm. Choose rings that match the wheel’s outer bore to 121.3 mm inner.

What lug nut torque should I use?
The exact torque varies. Refer to your owner’s manual or OEM service information for the 2009 Ram 2500 and use a calibrated torque wrench.

Will changing tire diameter affect my truck?
Yes. Larger diameters can alter speedometer accuracy and performance. Use the calculator to keep overall tire diameter change within your target range and verify there is no rubbing at full lock or under load.