Gradall OEM Part # 91373001 | Cummins B3.9c-110 EPA Diesel Engine (Used)

Get your heavy equipment back to work with this genuine OEM Gradall-certified used engine assembly (Part # 91373001). Powered by the highly reliable Cummins B3.9c-110 platform, this 110-horsepower turbocharged diesel engine is built to deliver high torque and rugged durability under the most demanding job site conditions.

Optimized for Gradall telehandlers and material handlers (such as the 534D series), this engine is an excellent, cost-effective drop-in replacement that meets EPA emission standards.

Key Benefits & Features

• Genuine OEM Fitment: Avoid the headache of aftermarket adapters. Because this is an authentic Gradall-specified part (91373001), it features the correct mounting points, flywheel housing, and accessory configurations designed specifically for Gradall machinery.

• Proven Cummins Reliability: The Cummins 3.9L engine family is legendary for its simple, mechanical design, easy cold-starts, and straightforward maintenance.

• Significant Cost Savings: Choosing a high-quality used OEM runner instead of a brand-new crate engine saves you thousands of dollars while minimizing your machinery's downtime.

• EPA Compliant: Configured to meet required EPA emissions standards for its vintage tier, ensuring your equipment stays compliant on regulated jobsites.

Technical Specifications

• Gradall Part Number: 91373001

• Engine Manufacturer: Cummins (B3.9C-110)

• Configuration: Inline 4-Cylinder, 4-Stroke Diesel

• Displacement: 3.9 Liters

• Aspiration: Turbocharged

• Power Output: 110 HP

• Emission Rating: EPA Compliant

• Condition: Pre-Owned / Used

Common Equipment Compatibility

This engine assembly is commonly found in Gradall Telehandlers and Material Handlers, specifically the 534D-6, 534D-9, 534D-10, and related series requiring the 110 HP engine upgrade.

(Please verify your machine's serial number and existing engine bracket configuration before purchasing to ensure a perfect match.)

Note on Used Parts: This is a pre-owned, used engine assembly. It has been visually inspected for structural integrity. Auxiliary components (such as alternators, starters, and turbos) are included as-is. We highly recommend replacing standard wear-and-tear items like oil filters, fuel filters, and belts prior to installation.