The Timbren TIM-R145226 BES Severe-Duty Rear Brake Rotor is engineered for demanding towing, hauling, and heavy-duty driving applications. Designed to fit select 2019-2020 Ram 3500 models with the 6.7L inline-six diesel engine, this rear rotor helps address heat-related braking problems such as warping, pedal pulsation, and brake fade. Its premium-grade iron construction provides dependable strength and consistent braking performance under load.
The proprietary OnyxBond™ hybrid corrosion-resistant coating creates a durable matte black barrier against road salt, moisture, and extreme temperatures. Rated for temperatures up to 932 degrees Fahrenheit, OnyxBond™ provides a higher heat threshold than typical zinc coatings, helping the rotor maintain performance during repeated stops and extended towing. The coating also helps protect the cooling vanes from rust buildup so airflow and heat dissipation remain effective over the service life of the rotor.
Each Timbren BES rotor is fly-cut balanced and precision machined to OE specifications to support smooth, vibration-free braking. The non-directional finish promotes even brake pad bed-in, while the OEM-style vane design efficiently moves heat away from the braking surface. As a direct-fit replacement for factory equipment, the TIM-R145226 is designed for straightforward installation and reliable fitment without unnecessary modifications. This rear brake rotor is a practical upgrade for drivers who require durable, consistent braking during job-site use, highway towing, and other severe-duty conditions. Verify vehicle configuration and brake system compatibility before installation.
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