OPR Ecklers 1947-1987 Chevy-GMC Truck Brake Lines, Prebent, Front, Use With Power Brakes & GM Style Proportioning Valve C-20-79

Product Information

Features, Description, Reviews, Q&A, Specs & Installation

Features

OPR Brake Lines
Pre-bent
Front Model
For Use with Power Brakes and GM Valves
Crafted from Stainless Steel
Plumbs Dual Master Cylinder to Late Model GM Proportioning Valves (Part Numbers 57-132389-1 and 57-159963-1)
Raw Metal Finish
Direct Replacement for Ecklers Legacy Number 20-79
Comes in Pairs
Universal Fit

Description

Precision Brake Plumbing. Designed for a universal fit on different classic models, these OPR Brake Lines provide a dependable solution for restoring proper brake system plumbing and hydraulic routing. Engineered for use with power brakes and GM valves, they help simplify brake system upgrades and restoration projects by utilizing a pre-bent configuration. Their direct replacement design supports dependable installation and reliable brake system operation.

Construction and Appearance. Crafted from stainless steel, these brake lines are engineered to provide excellent corrosion resistance, durability, and long-term reliability. The pre-bent construction is designed to help maintain accurate routing while reducing the need for extensive line fabrication during installation. A raw metal finish delivers a clean, factory-style appearance that complements restoration and upgrade projects. Quality manufacturing standards contribute to dependable hydraulic performance, structural integrity, and extended service life.

Installation. Designed as a direct replacement for Ecklers Legacy Number 20-79, these brake lines are intended to integrate with compatible braking system components and related hardware. The adaptable design supports a versatile installation process and is configured to plumb a dual master cylinder to late model GM proportioning valves, including Part Numbers 57-132389-1 and 57-159963-1. Standard service procedures and commonly available tools are typically sufficient for installation. Proper installation helps maintain dependable hydraulic operation and consistent braking performance.

Application. These OPR Brake Lines have a universal fit for different models. By providing accurate brake line routing and dependable hydraulic connections, they help support reliable braking system performance and restoration accuracy. Their stainless steel construction and pre-bent design make them a practical solution for brake system upgrades and maintenance projects.

OPR C-20-79

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Install Details & What's in the Box

Installation Info

Installation Time

(approx) 1 Hour

Difficulty Level:

Light to Moderate mechanical skill required.

Installation Guides

No guide available for this part yet.

What's in the Box

(2) Brake Lines

Warranty

OPR offers our valued customers the following Limited Warranty on all OPR product purchased after September 1st, 2026.

What is Covered

Subject to the terms, exclusions and limitations herein, and with respect only to products first sold in the United States, OPR warrants that its products shall be free of manufacturing defects for five (5) years from the date of initial retail purchase when the OPR product is installed and used on purchaser's vehicle according to supplied product installation instructions and/or warnings. This Limited Warranty is made only with respect to the initial purchaser and is not transferrable. OPR reserves the right to require proof of purchase as a condition of this Limited Warranty and to make future revisions to this product or its Limited Warranty without obligation to provide notice of same to purchaser or to conform existing product to future revisions. Any change to this warranty made after purchase may be applied retroactively at the sole discretion of OPR.

What is Not Covered

Your OPR Limited Warranty does not cover damage or claims to any component, vehicle, or person other than the OPR product purchased. Your Limited Warranty is expressly limited to replacement of the item itself shall OPR determine item was not free of defect. As such, this Limited Warranty does not cover damage or claims to any component, vehicle, or person OPR determines to have been damaged by or subjected to:

Installation damage, collision damage, alteration, modification, misuse or failure to maintain.
Damage in any part attributable to:
1. vehicle systems or components or
2. combination with non-OPR products.
Normal wear and tear/product deterioration.
Theft, vandalism or other negligent or intentional damage.

Remedy Limited to Repair/Replacement:

The exclusive remedy provided for products covered under this Limited Warranty shall be, upon OPR's inspection and at OPR's option, either repair or replacement of product or parts (new or refurbished). Any parts repaired or replaced will be considered part of the original product and will not extend the term of Limited Warranty. Customers requesting warranty consideration should first contact the independent distributor selling your product to obtain a Returned Goods Authorization number. All removal, shipping, and installation costs are customer's responsibility. If a replacement part is needed before your part can be returned, you must first purchase the replacement part. Then, if OPR determines the part warrantable, you will be credited the purchase price of that part.

This warranty is the only warranty made in connection with the purchase of this product. OPR neither assumes nor authorizes any manufacturer, vendor, retailer, other person or entity to assume for it any other obligation or liability in connection with its products or this Limited Warranty.

Other Limitations - Exclusion of Damages - Your Rights Under State Law:

In consideration of the purchase price paid, neither OPR nor any independent distributor are responsible for any loss of use or time, rental costs, or for any incidental, consequential, punitive or other damages (whether arising in tort or contract) you may have or incur in connection with your vehicle, or your OPR product. Your exclusive remedy hereunder is repair/replacement of the item itself or refund as described above at OPR's option. All implied warranties of merchantability and fitness for a particular purpose are hereby disclaimed or limited to the extent allowed under your jurisdiction.

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