Description
The Cleveland Tank RS15100LC-51 is a 100-gallon rectangular steel diesel fuel tank engineered as a direct-fit aftermarket replacement, cross-referenced to IC Bus OEM part number 4137183C91. If your factory fuel tank is leaking, rusted, or malfunctioning, the RS15100LC-51 mounts between the frame rails and restores your bus or truck to full service without cutting, drilling, or fabrication. It’s built from heavy-duty mild-grade steel with an internal rust-preventive coating and a gloss black powder coat exterior finish, engineered to the same quality standards and specifications as the original OE tank, and every unit is pressure tested to confirm leak-free performance before it ships. Always confirm exact fitment against your chassis VIN or existing OE tank part number before ordering, as capacity and mounting configuration can vary by model year and build.
The RS15100LC-51 measures 72.00 inches long by 25.00 inches wide by 15.25 inches high and weighs 190 lbs. It mounts between the frame rails with a passenger-side fill configuration, holds 100 gallons of diesel fuel, and carries full DOT approval. Every tank ships ready to install with a magnetic drain plug, rollover protection vent, vent tubing, fuel cap, drawtube, return fitting, equalizer fitting, and sending unit flange. A sending unit, sight gauge, locking fuel cap, and drain check valve are available as optional add-ons at the time of order.
For high-capacity, between-frame-rail tanks like the RS15100LC-51, steel remains the standard: it stands up to the mounting stress and road exposure of a 100-gallon frame-rail-mounted tank while keeping cost down. Cleveland Tank offsets steel’s main weakness — corrosion — with an internal rust-preventive coating plus a gloss black powder coat exterior, and every tank is pressure tested and DOT-approved for diesel fuel use























