Dodge RM350 Parts & Accessories

Dodge RM350 Parts & Accessories

The Dodge RM350 sits in the middle of Chrysler's medium-duty R-series commercial truck lineup, slotted between the lighter RM300 and the heavier RM400. These trucks were purpose-built for demanding commercial applications, and owners keeping them in service today need parts that are both correct for the platform and durable enough to match the original design intent. Restoration work and fleet maintenance drive most parts demand for this model.

Popular Upgrades

The highest-demand parts for the RM350 include heavy-duty leaf spring packs, replacement shock absorbers, brake drums, wheel cylinders, and brake shoes. Carburetor rebuild kits and ignition components for the LA V8 engine family are consistently needed as these trucks age. Exhaust manifold gaskets, intake manifold gaskets, and valve cover gaskets are also frequent purchases given the heat cycling these engines have seen over decades of commercial service.

Performance & Handling

The RM350 was equipped with the 318 LA V8 as standard equipment, with the 360 LA V8 available as an option for heavier payload configurations. Both displacements share the same LA block architecture and benefit from the same aftermarket support, including performance intake manifolds, four-barrel carburetor upgrades, and electronic ignition conversion kits. Suspension work on the RM350 focuses on restoring correct ride height and payload capacity, with heavy-duty leaf spring replacements being the most impactful single upgrade.

What are the most common mechanical issues on the Dodge RM350?

The most frequently reported issues on aging RM350 trucks involve the brake hydraulic system, carburetor wear, and front suspension wear at the king pins and tie rod ends. All three areas have solid parts availability through Mopar commercial truck suppliers. Addressing these in combination during a restoration or recommissioning gives the truck a reliable foundation for continued use.

Does the RM350 share parts with other Dodge R-series trucks?

Yes, the RM350 shares significant mechanical parts with the RM300 and RM400, as well as the conventional D300 and D350 series. This includes engine components, brake hardware, suspension parts, and much of the drivetrain. Cross-referencing part numbers across these models often opens up additional sourcing options and makes it easier to find in-stock parts quickly.

Black Ops Auto Works carries the full range of Dodge commercial truck parts. Explore exhaust systems, suspension components, and Mopar parts and accessories to keep your RM350 working.