
Internal hose degradation and environmental exposure can lead to pressure loss, uneven caliper response, and dangerous fluid leaks, especially under heavy fleet braking conditions. Upgrading to this high-quality replacement caliper restores hydraulic integrity, eliminating internal line expansion and ensuring immediate, consistent brake response. Designed for severe-duty applications, this caliper assembly offers a structural upgrade that enhances safety and braking performance across demanding commercial environments.
Specifications include an overall length of approximately 9 inches, with a 10mm inlet thread size. This caliper is engineered as a direct-fit, heavy-duty replacement suitable for use in commercial-grade, fleet, and cross-over passenger vehicles. Its robust construction and high-temperature sealing components ensure durability and reliable operation in harsh conditions.
Part Numbers
- L1590
Expert Installation & Field Note
For optimal performance, route the brake line away from chassis chaffing points and ensure there is adequate twist clearance during full-lock steering. Always verify line mounting brackets on heavy commercial frames to prevent undue stress or potential line damage. Our shop experience specializing in heavy-duty brakes since 1985 underscores the importance of inspecting all fittings and mounting points for compatibility and secure attachment before installation.
Before ordering, physically inspect your existing line length, banjos, or flare fitting threads. Variations in wheelbase, production batches, and fleet configurations may alter routing and connection points. Confirm dimensions and hardware compatibility to ensure proper fitment and avoid installation delays.
Features:
- New seals, guide pins, dust boots, bleeder screws, stainless steel hardware, and mounting brackets for comprehensive restoration
- Premium lubricant ensures smooth caliper operation and durability in severe conditions
- 100% pressure tested and inspected for reliable brake performance
- Bolt-on ready, no modifications necessary for installation
- High-temperature EPDM rubber dust boots provide enhanced protection against environmental elements



