International RH Series — International's regional Class 8 platform
The International RH Series is International's Class 8 regional haul tractor — launched in 2017 to serve regional, less-than-truckload, intermodal drayage, and short-haul Class 8 segments that don't require the long-haul capability of the LT but do require Class 8 highway tractor performance. Day cab and short sleeper configurations span the regional operational range, with the RH's shorter wheelbase and more maneuverable architecture suited to regional operational reality. The platform succeeds regional-spec ProStar configurations and the older DuraStar regional tractor work.
The platform serves regional haul fleet operations, less-than-truckload carriers, intermodal drayage at major port operations, refuse hauling on the lighter end of the refuse fleet population, beverage and food distribution, and the broader range of regional Class 8 tractor work. The RH competes alongside Freightliner Cascadia day cab, Kenworth T680 regional, Peterbilt 579 day cab, Volvo VNR, and Mack Pinnacle regional configurations. For regional fleet operators choosing between platforms, the RH's combination of International dealer network access, A26 and Cummins engine options, and chassis configuration for regional duty cycles all factor into platform selection.
Why RH Series Trucks Come To Our Bench
RH Series calibration work tracks International's regional Class 8 platform operational reality with A26 / Cummins L9 / B6.7 platform behavior across the production range:
A26 DPF derate. Standard A26 pattern, expressed through the specific operational stress profile of regional haul, intermodal drayage, refuse, and distribution applications. DPF accumulation patterns produce derate clustering at predictable mileage thresholds depending on application severity. Cummins B6.7 and L9 calibration approaches draw on the broader B6.7/L9 application population work we maintain across the medium-duty market.
DEF dosing failures on EPA 2010+ builds. Standard post-2010 pattern. RH Series trucks accumulating mileage show DEF dosing failures, NOx sensor drift, SCR catalyst efficiency drops, and inducement countdown patterns clustering at predictable mileage thresholds.
EGR cooler degradation. Standard pattern across the A26 platform. Coolant intrusion into intake, intermittent fault codes, eventual catastrophic failure if untreated.
Performance tuning and operational character improvements. RH Series customers benefit from calibration work that delivers improved torque response, broader operating envelope at working RPM, and operational character matched to regional haul, intermodal drayage, refuse, and distribution reality. Stock fleet calibrations leave operational capability available.
Calibration recovery on A26 ECMs. Standard recovery scope across the platform.
A26 / Cummins L9 / B6.7 Calibration Approach On The RH Series
RH Series calibration work uses International's diagnostic ecosystem alongside Cummins INSITE for Cummins-equipped configurations. The libraries are RH Series application-specific within the broader engine platform ecosystem — International's regional Class 8 platform calibration approaches differ from other International platform calibrations because the operational reality differs meaningfully.
For each RH Series customer, intake conversation centers on engine identification, application, year, and operational priorities. Regional duty cycle conversations focus on stop-and-go operation; emissions calibration conversations focus on resolving recurring aftertreatment-driven service issues.
Service Paths For RH Series Programming
Ship-in is the most common path. Pull the ECM, ship to Fort Lauderdale, 2-3 day programming turnaround. Remote programming works for shops with appropriate diagnostic software access. On-site service is available for South Florida fleet customers running RH Series inventory.
Quotes return same business day. Tell us the year, the engine, the application, fleet size, and current operational situation. For fleet customers running multiple RH Series trucks or mixed International inventory (modern RH Series alongside legacy MaxxForce-powered International trucks), multi-truck programming pricing applies and scheduling coordinates around operational priorities.
The RH Series In International Truck Family Context
The RH Series draws on International's broader truck family architecture and the modernized engine ecosystem that replaced MaxxForce-era platforms. Our calibration work draws on the broader International platform expertise we maintain across LT, RH, CV, MV, HV, HV507, and HX applications, with calibration approaches consistent across the broader International truck family.
For fleet customers running mixed International inventory across legacy MaxxForce-powered platforms (ProStar, WorkStar, DuraStar) and modern Cummins/A26-powered platforms (RH Series and related), calibration approaches benefit from the consistent platform expertise we maintain across both generations.
Intermodal Drayage Considerations
The RH appears prominently in intermodal drayage operations at major port complexes including Port Everglades, Port of Miami, Port of Los Angeles, Port of Long Beach, and similar major intermodal facilities. Drayage operations face specific calibration challenges — extended idle at port queues, frequent stops at container terminals, mixed-load operation, and the broader operational stress of port drayage work. Our calibration approaches matched to drayage duty cycle deliver operational improvements for RH fleet operators in port operations. For South Florida intermodal drayage operators specifically, our Fort Lauderdale location provides direct on-site service access.
Regional Drayage And Hub-And-Spoke Considerations
Regional RH operations frequently involve hub-and-spoke distribution patterns where the truck cycles between regional distribution centers and local delivery points. The operational pattern produces specific calibration challenges — frequent stop-start cycles, sustained idle at distribution facilities, mixed-load operation, and the broader operational reality of regional distribution work. For regional fleet operators running RH inventory across hub-and-spoke distribution networks, calibration approaches matched to the actual regional duty cycle deliver operational improvements over generic Class 8 highway calibrations. We work with regional fleet operators across less-than-truckload carriers, regional grocery and food distribution, regional industrial distribution, and broader regional Class 8 tractor service.
