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Upgrade the Rear Brake Hoses on Your 2020-2023 Ford Explorer with Rotora L.65257 Stainless Steel Braided Brake Lines
The Rotora L.65257 is a rear axle stainless steel braided brake line kit for the 2020-2023 Ford Explorer. Built with a PTFE inner tube, a stainless steel woven braid outer layer, and a blue abrasion-resistant PVC jacket, the L.65257 replaces the factory rear rubber hoses to deliver a firmer, more consistent brake pedal response. The PTFE tube carries brake fluid without expanding under pressure, eliminating the hose ballooning effect that causes spongy pedal feel in OEM rubber hoses during hard or repeated braking. The stainless braid resists incidental impact and abrasion, while strain relief devices reinforce all end fittings for long-term durability. Every Rotora L.65257 kit is 100% pressure-tested in-house to 3,500 PSI and manufactured to exceed DOT compliance and FMVSS 106 standards. All fittings and hardware are included. Note: there is no return on any brake lines for any reason once installed.
Key Features
- PTFE inner tube eliminates brake fluid-induced expansion for firmer rear pedal feel
- Stainless steel woven braid provides structural support and abrasion resistance
- Blue abrasion-resistant PVC outer jacket protects against chafing and strain at end fittings
- Strain relief devices reinforce all end fittings for long-term durability
- Every L.65257 kit 100% pressure-tested to 3,500 PSI in-house before shipping
- Meets and exceeds DOT compliance and FMVSS 106 standards
- All fittings, hoses, and necessary hardware included per axle
- Direct-fit replacement for 2020-2023 Ford Explorer rear brake hoses
Vehicle Fitment
| Year Range | Make | Model |
|---|---|---|
| 2020-2023 | Ford | Explorer |
Specifications
| Detail | Value |
|---|---|
| Part Number | L.65257 |
| Position | Rear Axle |
| Inner Material | PTFE (Teflon) |
| Braid Material | Stainless steel woven |
| Outer Jacket | Blue abrasion-resistant PVC |
| Test Pressure | 3,500 PSI (100% in-house tested) |
| Compliance | DOT / FMVSS 106 |
| Quantity | Per axle line kit (all hardware included) |
| Return Policy | No returns on brake lines for any reason |
| UPC | N/A |
What's Included
- Rotora L.65257 rear axle stainless steel braided brake line set
- All required fittings and hardware
About Rotora
Rotora is a worldwide aftermarket designer and manufacturer of high-performance braking systems and components, including big brake kits, brake calipers, cast iron and ceramic composite discs, stainless steel braided brake hoses, and brake pads ranging from street performance to full race. Every Rotora brake line is pressure-tested in-house before leaving the facility and manufactured to DOT and FMVSS 106 compliance standards.
Related Brake Parts for Your Ford Explorer on Our Site
- Rotora L.65258 Front Stainless Steel Brake Lines (2020-2023 Ford Explorer) - Complete the full-vehicle brake line upgrade with the matching front axle kit, same PTFE and stainless braid construction tested to 3,500 PSI
- Rotora RFK.641.01 Street Challenge Rear Brake System (2020-2023 Ford Explorer) - Full rear big brake upgrade with forged aluminum caliper and ceramic street pads, pairs directly with the L.65257 rear lines
- Rotora RFK.640.01 Street Challenge 6-Piston 355x35mm Front Big Brake Kit (2020-2023 Ford Explorer / Explorer ST) - Matching front big brake system to pair with the rear Street Challenge upgrade
- Rotora HDExplorer-355x35 HD Challenge Front Brake System (2020-2026 Ford Explorer) - Heavy-duty ductile iron caliper front system for towing and hauling applications
Frequently Asked Questions
What is the Rotora L.65257?
The Rotora L.65257 is a rear axle stainless steel braided brake line kit for the 2020-2023 Ford Explorer. It replaces the factory rubber rear brake hoses with a PTFE inner tube, stainless steel woven braid, and blue PVC outer jacket construction. The kit is DOT and FMVSS 106 compliant, pressure-tested to 3,500 PSI, and includes all hardware needed for installation.
Should I replace front and rear brake lines at the same time?
It is strongly recommended to replace front and rear brake lines together for the most consistent pedal feel and performance across the full braking system. The matching front axle kit is the Rotora L.65258, available separately on our site. Pairing both the L.65257 rear and L.65258 front ensures uniform fluid delivery and consistent brake response at all four corners.
Will these lines work with a rear big brake kit on the Explorer?
The L.65257 is a direct-fit replacement for the OEM rear brake hose connection points. If you are installing a Rotora Street Challenge or HD Challenge rear big brake kit, confirm with Rotora whether the included stainless lines in those kits cover the full hose run or whether the L.65257 is also needed. For stock caliper upgrades, the L.65257 is a direct replacement.
What does FMVSS 106 compliance mean?
FMVSS 106 is the Federal Motor Vehicle Safety Standard for brake hoses and assemblies used on road vehicles in the United States. Compliance means the hose construction, pressure rating, and end fitting integrity meet federal minimum requirements for brake line use on public roads. Rotora manufactures the L.65257 to meet and exceed this standard.
Can I return these lines if they don't fit?
No. There is a strict no-return policy on all Rotora brake lines for any reason once the order is placed. Please verify your vehicle year, make, and model before purchasing. Contact us with any fitment questions before ordering.
How long does installation take?
Rear brake line replacement typically takes one to two hours for an experienced DIY mechanic. The process involves removing the rear wheels for access, disconnecting the OEM rubber hoses from the hard line and caliper connections, routing and connecting the new Rotora lines, and performing a complete brake bleed at all four corners before driving. All necessary hardware is included in the L.65257 kit.
What is the test pressure for Rotora brake lines?
Every Rotora brake line kit, including the L.65257, is 100% pressure-tested in-house to 3,500 PSI before shipping. This exceeds the pressures encountered in both normal and performance driving conditions and confirms there are no defects in the hose or end fittings before the kit ships.
Are these compatible with the Ford Explorer ST rear brakes?
The L.65257 is listed for the 2020-2023 Ford Explorer. The Explorer ST uses the same rear hose connection architecture as the standard Explorer. If you are pairing these lines with a rear big brake kit specific to the Explorer ST, confirm the hose routing and connection specs with Rotora before ordering.
Important Installation Warning
When loosening the factory hard-line fittings, the original bubble-flare tube nut may strip or deform because some OEM tube nuts are manufactured from relatively soft material. This issue may occur on Chevrolet/GM, Ford, Chrysler, Dodge, Jeep, and other OEM applications.
If the tip or threads of the factory tube nut become worn, damaged, or crossed, the Rotora stainless steel brake-line fitting may become difficult to start or may appear to have the incorrect thread pattern.
Installation Instructions
- Lift and support the vehicle safely on jack stands at the rear. Gather a line wrench set, brake fluid catch container, and fresh DOT-rated brake fluid.
- Locate the rear brake hard line-to-flexible hose connections at the chassis bracket on each side. Place a catch container beneath before loosening.
- Using a line wrench, loosen and remove the hard line fitting from the OEM rubber hose, then disconnect the hose from the rear caliper banjo bolt. Cap or plug the hard line immediately to minimize fluid loss.
- Remove the OEM rubber hose from its chassis retaining bracket and set aside.
- Route the Rotora L.65257 stainless line through the chassis retaining bracket in the same orientation as the OEM hose.
- Thread the hard line fitting onto the new line by hand first, then torque with a line wrench to factory specification.
- Connect the caliper end using the supplied banjo bolt and sealing washers. Torque to specification.
- Repeat steps 2 through 7 for the opposite rear corner.
- Top off the brake fluid reservoir with fresh fluid of the correct DOT rating and perform a full brake bleed at all four corners before driving.
- Inspect all connections for leaks with the engine running and brake pedal depressed before moving the vehicle.
WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.
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