Replacement RF31500020 Throttle Body OEM Replacement for Cummins Engine (OEM Ref 4934537)

The Replacement RF31500020 is a direct-fit OEM replacement throttle body designed for Cummins diesel engines found in heavy-duty commercial trucks. This unit cross-references OEM part number 4934537 and is engineered to restore precise airflow management and throttle response to factory specifications.

The throttle body is a critical component in the engine's air intake system, regulating the volume of air entering the engine to ensure optimal fuel-air mixture, efficient combustion, and proper power delivery. A faulty or worn throttle body can result in rough idling, poor acceleration, reduced fuel economy, or engine fault codes — making timely replacement essential for maintaining uptime in commercial fleet applications.

Key Features:

• OEM Cross-Reference: Replaces Cummins OEM part number 4934537
• Direct-Fit Replacement: Engineered for precise, hassle-free installation with no modifications required
• Cummins Engine Compatible: Designed specifically for Cummins diesel powerplants used in heavy-duty commercial vehicles
• Restores Factory Performance: Returns throttle response and airflow control to OEM specifications
• Heavy-Duty Construction: Built to withstand the demands of commercial trucking environments
• Application: Freightliner Cascadia / 114SD (2013–2020) and Kenworth T800 (2010–2016)

This throttle body is an ideal solution for fleet operators and independent owner-operators seeking a reliable, cost-effective alternative to dealer-sourced OEM parts without sacrificing fit or function.