Hellwig 7298 Big Wig Rear Sway Bar for 2014-2025 Ram 3500 6.7L Diesel 2WD/4WD

Vehicle Fitment

• 2014-2025 Ram 3500 (All Trims, 2WD/4WD, SRW & Dually, 6.7L Cummins Turbo Diesel I6)

Fitment Notes

• Requires 6.7L Cummins Turbo Diesel engine - does not fit Ram 3500 models equipped with gasoline engines.
• Fits both Single Rear Wheel (SRW) and Dually (DRW) configurations.
• Compatible with vehicles equipped with or without factory rear air suspension.
• Compatible with aftermarket air bag kits (e.g., Air Lift 7500XL); sway bar mounts at the differential housing, inboard of the shock mounts.
• Hellwig recommends pairing with a Hellwig front sway bar for a complete front-to-rear handling upgrade.

Features

• Largest diameter Big Wig sway bar available from Hellwig - purpose-built for heavy-duty tow and haul applications on the Ram 3500 platform.
• Solid 4140 chromoly steel construction with heat treatment that nearly doubles tensile strength compared to standard steel.
• Gray hammertone powdercoated finish on the bar and plate steel brackets for corrosion resistance and long-term durability.
• Reduces body roll by over 20% compared to factory suspension, improving stability and safety under heavy loads.
• Specifically engineered for vehicles with a high center of gravity - ideal for slide-in truck campers, heavy trailers, and commercial hauling.
• Quick bolt-on installation using factory mount locations - no cutting, drilling, or welding required.
• High-durometer polyurethane bushings included for optimal performance, reduced noise, and long service life.
• Heavy-duty upsized mounting hardware included to withstand the amplified vibration and shock loads associated with heavy towing and hauling.
• ISO 9001:2015 certified manufacturing ensures precision quality on every unit.
• Made in the USA at Hellwig's Visalia, California facility. Backed by a Limited Lifetime Warranty.

Specifications

• Part Number: 7298
• Bar Diameter: 1-5/16" (1.313 in. / 33.35 mm)
• Bar Material: Solid, heat-treated 4140 chromoly spring steel
• Finish: Gray Hammertone Powdercoated
• Position: Rear
• Rate Type: Fixed
• Drivetrain: 2WD and 4WD
• Configuration: SRW and Dually compatible
• Engine Requirement: 6.7L Cummins Turbo Diesel I6 only
• UPC: 745662072988
• Warranty: Limited Lifetime

Included Components

• 1x Hellwig 7298 Big Wig Rear Sway Bar (1-5/16" diameter, chromoly, gray hammertone powdercoated)
• 1x Set of powdercoated plate steel mounting brackets
• 1x Set of high-durometer polyurethane bushings
• 1x Complete heavy-duty mounting hardware kit
• 1x Installation instruction sheet

Product Description

The Hellwig 7298 Big Wig Rear Sway Bar is a purpose-built heavy-duty suspension upgrade designed specifically for 2014-2025 Ram 3500 trucks equipped with the 6.7L Cummins Turbo Diesel engine. Most factory-equipped 3500-series trucks lack a rear sway bar capable of adequately controlling body roll under the demands of heavy hauling, truck camper use, or loaded trailer towing. The 7298 closes that gap with its massive 1-5/16" solid chromoly bar - the largest diameter in the Hellwig Big Wig lineup - delivering over 20% greater roll stiffness than stock. The result is dramatically improved stability through corners and transitions, more planted traction on all four tires, and significantly reduced trailer sway during towing.

Built from solid 4140 chromoly spring steel that is heat-treated to nearly double its base tensile strength, the 7298 is finished in a gray hammertone powdercoat that protects both the bar and its plate steel mounting brackets from corrosion. The fixed-rate design is optimized for the Ram 3500's specific suspension geometry and axle placement, mounting directly to the differential housing using the included heavy-duty hardware - no fabrication, cutting, or drilling required. The kit is fully compatible with factory rear air suspension and aftermarket airbag systems such as the Air Lift 7500XL, with the sway bar mounting inboard of the shock positions without interference.

Fitment spans the full 2014-2025 Ram 3500 lineup across all trim levels, covering both 2WD and 4WD configurations as well as Single Rear Wheel and Dually models. This makes the 7298 one of the broadest-coverage Big Wig applications in the Hellwig catalog for the Ram platform. Manufactured in Hellwig's ISO 9001:2015 certified facility in Visalia, California and backed by a Limited Lifetime Warranty, the 7298 is an ideal investment for Ram 3500 owners who depend on their truck for demanding commercial, recreational, or agricultural hauling applications.