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Coiled copper-nickel brake tubing, transparent finish

AGS

AGS CNJ-351 NiCopp Brake Line 3/16 x 51

SKU CH-ZWJ5-JYP98

Nickel-copper alloy brake tubing meets SAE J1047 and ISO 4038 standards, resists corrosion better than steel and bends easily for installation

  • Product typeAutomotive Brakes, Steering & Suspension
  • Product colorTransparent
  • Nickel-copper alloy resists corrosion far better than steel
  • Meets SAE J1047 and ISO 4038 brake tubing standards
  • Softer tubing bends and flares easily without special tools
  • 51-inch length suits many brake line replacement jobs
  • Prop 65 warning notes chemical hazard for California buyers

AGS CNJ-351 NiCopp Brake Line

The AGS CNJ-351 is a 3/16 inch by 51 inch nickel-copper alloy brake line built for automotive hydraulic systems. It meets SAE J1047 and ISO 4038 standards for brake tubing. The UNS C70600 alloy provides the strength of steel with superior corrosion resistance. Professional technicians and DIY restorers use it to replace deteriorated original lines.

SAE J1047 and ISO 4038 compliance limits

The tubing conforms to SAE J1047 and ISO 4038 specifications for burst pressure and dimensional tolerances. It is designed for inverted flare and metric flare fittings common on many vehicles. The material composition is fixed at approximately 88.6 percent copper, 9.2 percent nickel, 1.4 percent iron and 0.8 percent manganese. California Proposition 65 warnings apply due to chemical content.

Replaces steel brake lines on older vehicles

This NiCopp line upgrades factory steel tubing that has rusted, cracked or failed inspection. The alloy has been used on European brake systems since the 1970s and resists road salt far better than plain steel. It bends by hand without kinking, simplifying routing around chassis components. The jump is worth it when the original steel lines show any external corrosion or internal restriction.

How it compares

Measured against everything we stock in Solar-Powered Chargers & Devices, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 75% of the 874 comparable items (median $25.99).

Specifications

Product
Brand nameAGS
Product typeAutomotive Brakes, Steering & Suspension
Product colorTransparent

Questions about this item

Should I pick the 3/16-inch by 51-inch NiCopp line or a different size?

The 3/16-inch diameter matches standard SAE inverted flare fittings on most vehicles, while the 51-inch length suits many single-run replacements without joining sections.

What does the 90-10 copper-nickel alloy mean once the line is fitted to the car?

The alloy — 88.6% copper, 9.2% nickel, 1.4% iron, .8% manganese — gives steel-like burst strength but far better corrosion resistance and bends by hand without kinking.

Which brake-line standard does the SAE J1047 / ISO 4038 rating actually cap in practice?

Those standards govern wall thickness, burst pressure and material composition for 3/16-inch tubing, so the line meets every OEM requirement for hydraulic brake circuits worldwide.

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