How it works — 3 easy steps
Confirm your year, make, model, cab and bed match this kit's fitment.
Remove the old rusted lines and drop in the pre-bent, pre-flared NiCopp replacements — no cutting or flaring.
Connect the pre-installed fittings, bleed the brakes, and you're back on the road.
Description
EZ-Fit NiCopp Brake Line Kit — Silverado & Sierra 2500/3500 Crew-Cab Long (2003-2007)
Replace every corroded steel line on your HD GM truck in a single afternoon. The AGS EZ-Fit NiCopp kit is pre-routed and pre-flared for 2003-2007 Silverado 2500/3500 and Sierra 2500/3500 Crew-Cab Long models, eliminating guesswork and garage-floor bending. Built from a nickel-copper alloy that defies salt, moisture, and vibration, each line drops into factory clips and mates with OEM-style fittings for a leak-free seal every time.
Key Features
Model-Specific Routing – CNC-bent to factory geometry for Crew-Cab Long-bed frames
NiCopp Alloy Tubing – Rust-proof, DOT-approved, and easy to hand-form if minor tweaks are needed
Pre-Flared & Fitted – OEM-correct flare angles and zinc-plated fittings—no flaring tools required
Full-System Coverage – Includes front, rear, over-axle, and master-cylinder lines plus clips where applicable
Lifetime Durability – Resists up to 10,000 PSI burst pressure and temperatures to 1,800 °F
DIY-Friendly Install – Step-by-step diagram and part-number tags slash install time
Upgrade to EZ-Fit NiCopp and drive confidently—your heavy-duty Silverado or Sierra deserves brake lines as tough as the truck itself.
Specifications
| Material | NiCopp (copper-nickel) alloy |
| Lines | Pre-bent & pre-flared to factory routing |
| Fittings | Correct fittings installed / included |
| Cutting / flaring | Not required — ready to install |
| Coverage | Complete hard-line replacement for the listed vehicle |
EZ-Fit Adjustable Tubing Straightener 3/16" to 3/8"
Brake & Fuel Line Bending Pliers - 3/16" & 1/4" O.D. Tubing
Tubing Bender 3/16" and 1/4"
Sil-Glyde Silicone Brake Lubricant