Goodridge 03-12 Toyota 4Runner (All Models) 4in Extended SS Brake Lines

Goodridge 4-21186 4-Inch Extended Stainless Steel Braided Brake Lines for 2003-2013 Toyota 4Runner (All Models)

The Goodridge 4-21186 is a set of 4-inch extended stainless steel braided brake lines designed for 2003-2013 Toyota 4Runner in all trims including Limited, Sport, SR5, and Trail. Engineered for lifted 4Runners where factory brake lines create tension or restrict suspension travel, part number 4-21186 features Goodridge's PTFE inner lining wrapped in a stainless steel braid outer layer to eliminate the spongy pedal feel caused by line expansion under pressure. The result is improved braking efficiency, a firmer pedal, and greater resistance to abrasion and corrosion compared to factory rubber brake lines. All lines are DOT compliant for street use.

Features and Benefits

• 4-inch extended length accommodates lifted 4Runner suspension without line tension
• PTFE inner lining prevents line expansion under braking pressure for a firm, consistent pedal
• Stainless steel braid outer layer provides superior abrasion, corrosion, and heat resistance
• DOT compliant for street, off-road, and competition use
• Eliminates spongy pedal feel caused by expanding rubber brake hoses under high pressure
• Superior resistance to ozone, grease, and environmental degradation compared to rubber lines
• Precision-machined end fittings for leak-free installation
• Fits 2003-2013 Toyota 4Runner Limited, Sport, SR5, and Trail

Fitment

Specifications

What Is Included

• Extended stainless steel braided brake lines for the 2003-2013 Toyota 4Runner (complete set)
• All end fittings and hardware required for installation

Frequently Asked Questions

Why do I need extended brake lines on my lifted Toyota 4Runner?
When a 4Runner is lifted, the suspension travels farther from the chassis, increasing the distance between fixed chassis brake line hard points and the caliper fittings at the wheel. Factory rubber brake lines can become taut, restricting suspension travel and potentially cracking or failing. The 4-21186 adds 4 inches of length to prevent tension and maintain safe full suspension travel.

Will the Goodridge 4-21186 improve my 4Runner's braking feel?
Yes. The PTFE-lined stainless steel braid construction of the 4-21186 does not expand under braking pressure the way rubber hoses do. This eliminates the spongy, mushy pedal feel that rubber lines can create, providing a firmer, more consistent brake pedal with better modulation.

Are the 4-21186 brake lines DOT legal for street use?
Yes. The Goodridge 4-21186 are DOT compliant and approved for use on public roads as well as off-road and competition environments.

What lift kit heights work with the Goodridge 4-21186?
The 4-21186 provides 4 inches of additional length, making it compatible with lift kits in the range of 2 to 6 inches on 4th and 5th generation Toyota 4Runners. For very large lifts exceeding 6 inches, verify that the extended length is sufficient for your specific setup.

Does installing the 4-21186 require brake fluid bleeding?
Yes. Any time brake lines are disconnected, the brake system must be bled to remove air and restore firm pedal feel. Follow proper brake bleeding procedures and use fresh DOT-compliant brake fluid.

Do the 4-21186 brake lines fit 4Runners with a factory KDSS system?
Consult the product fitment guide for your specific 4Runner configuration. Some 4Runner models with the Kinetic Dynamic Suspension System may have different brake line routing requirements.

How long does it take to install the Goodridge 4-21186?
Typical installation time is 1 to 2 hours for a mechanic with brake line experience. Proper bleeding of the brake system is required after installation.

What does the stainless steel braid outer layer do?
The stainless steel braid protects the PTFE inner hose from abrasion by rocks, debris, and off-road hazards, and also prevents expansion under pressure. This dual-layer construction far outlasts factory rubber hoses in off-road environments and provides a firmer, more predictable pedal feel in all conditions.

Installation Instructions

1. Safely lift and support the vehicle on jack stands. Have a brake bleeding assistant or pressure bleeder available.
2. Place absorbent rags under each brake line connection to catch brake fluid drips during removal.
3. Remove the factory brake line from the hard line fitting at the frame, using a flare-nut wrench to avoid rounding the fitting.
4. Remove the lower end of the factory brake line from the caliper banjo bolt fitting.
5. Compare the Goodridge 4-21186 to the factory line to confirm correct routing and end fitting orientation.
6. Install the new Goodridge 4-21186 at both the frame hard-line fitting and the caliper banjo bolt fitting. Use new copper crush washers at banjo bolt connections if applicable. Torque fittings to specification.
7. Repeat for all brake lines in the kit.
8. Bleed the entire brake system per OEM procedure to remove all air.
9. Pump brakes and verify firm pedal before lowering the vehicle.
10. Test braking function at low speed in a safe area before returning to normal use.

Prop 65 Warning: This product can expose you to chemicals including lead and other compounds known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.