
Internal rubber hose degradation and environmental exposure are common causes of pressure loss, uneven caliper response, and dangerous fluid leaks in fleet vehicles. This replacement caliper assembly from DFC provides a structural upgrade designed to restore instantaneous hydraulic response, eliminating internal line expansion during heavy braking conditions typical in commercial operations. Its robust construction ensures reliable operation under severe-duty conditions, reducing maintenance downtime and enhancing safety.
Constructed with a silver zinc coating, the DFC 331-74003 caliper offers corrosion resistance suited for demanding environments. Precision-engineered to match OEM specifications, it fits directly into the original mounting points on 1998 Volkswagen Passat models. This caliper features a durable cast iron body, ensuring long service life and resistance to thermal stress, making it an ideal choice for heavy-duty fleet applications where reliability is critical.
- Overall Length: As Specified
- Fitting / Outlet Size: 10mm INV thread
- Application: Commercial-Grade / Heavy-Duty Fleet / Passenger Automotive Cross-Over
Part Numbers
- 331-74003
Expert Installation & Field Note
With our extensive shop experience specializing in heavy-duty brakes since 1985, we advise technicians to route hoses carefully to prevent chassis chaffing and ensure proper twist clearance during full-lock steering cycles. Always verify the mounting brackets on heavy commercial frames are secure and correctly positioned to avoid unintended line stress or damage. Proper routing and secure mounting are essential to maximize caliper lifespan and maintain consistent hydraulic response under fleet operating conditions.
Ensure you physically inspect your existing line length, banjos, or flare fitting threads before ordering. Variations in production runs and wheelbase configurations can alter line routing in fleet and utility applications. Confirm measurements to prevent installation delays or fitment issues.
Features:
- OE replacement caliper with durable silver zinc coating for corrosion resistance
- Precision-engineered to match OEM specifications for seamless fit
- Heavy-duty cast iron body designed for severe-duty fleet applications
- 10mm inlet thread for reliable hydraulic connection
- Ideal for commercial fleet vehicles requiring high-performance braking



