Internal hose degradation and environmental wear are common causes of pressure loss, uneven caliper response, and dangerous fluid leaks in fleet and industrial brake systems. Upgrading to this high-quality replacement caliper restores immediate hydraulic response, eliminates internal fluid expansion, and ensures consistent braking under severe-duty conditions. Designed for durability and performance, this caliper assembly offers a direct fit replacement to maintain your vehicle’s safety and operational efficiency.
Constructed with new seals, guide pins, dust boots, bleeder screws, and stainless-steel hardware, the PowerStop L4881 caliper meets stringent quality standards. The high-temperature EPDM rubber dust boots and premium assembly lubricants resist extreme heat and harsh environments, providing smooth operation and long-lasting reliability. Each caliper is 100% pressure tested and inspected, guaranteeing leak-free performance and high braking power. Suitable for heavy-duty fleet applications and cross-over passenger vehicles, these calipers are bolt-on ready, requiring no modifications for installation.
- Overall Length: As Specified
- Fitting / Outlet Size: 10mm INV thread
- Application: Commercial-Grade / Heavy-Duty Fleet / Passenger Automotive Cross-Over
Part Numbers
L4881
Expert Installation & Field Note
Based on our shop experience specializing in heavy-duty brakes since 1985, it is critical to route hoses properly to avoid chassis chaffing and ensure full lock steering clearance. Always check line mounting brackets on heavy commercial frames for compatibility and secure fitment. Proper routing and secure mounting prevent line chafing, reduce vibration, and maintain hydraulic integrity during demanding fleet operations.
Features:
- New seals, guide pins, dust boots, bleeder screws, stainless steel hardware and brackets for reliable performance
- Premium lubricant ensures smooth caliper operation and durability in harsh conditions
- 100% pressure tested and inspected for leak-free, high-quality braking
- Bolt-on ready with no modifications required
- High temperature EPDM rubber dust boots resist extreme heat and environmental wear



