Dynamic Friction 355-42021 Brake Master Cylinder

Brake Master Cylinder for Jeep Wrangler

Dynamic Friction DFC Brake Master Cylinder 355-42021 is a direct-fit brake hydraulic replacement for select Jeep Wrangler applications. It is listed for 2007-2018 Jeep Wrangler and 2018 Jeep Wrangler JK models with 302mm front discs where noted, giving buyers a fitment-specific option for brake system service.

Key Features

• Brake master cylinder for Jeep Wrangler brake hydraulics service
• Fits 2013-2018 Jeep Wrangler, N/A, with 302mm front discs
• Fits 2018 Jeep Wrangler JK, N/A, with 302mm front discs
• Fits 2007-2012 Jeep Wrangler, N/A
• Dynamic Friction DFC Brake Master Cylinder line
• Part number 355-42021 for application matching and catalog lookup

Product Details

The DFC Brake Master Cylinder line from Dynamic Friction focuses on brake hydraulic replacement parts for vehicle-specific service. This master cylinder is cataloged for Jeep Wrangler brake repairs where the original hydraulic unit needs replacement, and the fitment notes help narrow selection for vehicles equipped with 302mm front discs. Use part number 355-42021 when verifying the correct master cylinder for your Jeep Wrangler or Jeep Wrangler JK.

What It Helps Address

• Low or inconsistent brake pedal response
• Internal master cylinder leakage
• Brake fluid loss at the hydraulic unit
• Brake warning concerns tied to master cylinder wear
• Restoration of proper hydraulic pressure in the brake system

Installation Notes

Confirm year, model, and brake configuration before installation. This listing includes Jeep Wrangler applications with 302mm front discs where specified, so match the vehicle’s brake setup to the catalog notes before ordering. After installation, bleed the brake system and inspect for leaks, pedal feel, and proper hydraulic operation.

Quality Assurance

Dynamic Friction catalogs this part within its DFC Brake Master Cylinder line for brake hydraulic replacement service. Verify fitment against the vehicle application and part number 355-42021 before installation.