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Stainless Steel

When failure isn’t an option, go stainless. Our 316L stainless-steel brake line coils deliver unmatched burst strength and rust-proof reliability for performance builds, daily drivers, and hard-working fleet vehicles that face salt, mud, or coastal air. With thick 0.028" walls that exceed SAE J527 and FMVSS 106 specifications, these lines handle big-brake upgrades and track-day demands without compromise.

The marine-grade 316L alloy forms a lifetime corrosion shield, outlasting zinc-coated or galvanized steel in the harshest environments—from road salt and chemicals to winter brine. You’ll also enjoy precise modulation under repeated hard braking, thanks to rigid tubing that minimizes volumetric expansion for a firmer pedal and confident stopping power. Plus, compatibility with all DOT 3, DOT 4, DOT 5.1, and racing fluids means no pitting or chemical breakdown—just reliable performance every mile.

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Showing 1 — 16 of 29 Products
Showing 1 — 16 of 29 Products
3/16" x 25 | Stainless Steel Tubing Coil
Stainless Steel
5.0
Rated 5.0 out of 5 stars
6 Reviews
3/16" x 25' | Stainless Steel Tubing Coil
3/16" x 25 | Stainless Steel Brake Line Kit | 16 SAE Thread Fittings - 4LifetimeLines
Stainless Steel
4.7
Rated 4.7 out of 5 stars
46 Reviews
3/16" x 25' | Stainless Steel Brake Line Kit | 16 SAE Thread Fittings
1/4" x 25 | Stainless Steel Brake Line & Fitting Kit - 4LifetimeLines
Stainless Steel
4.7
Rated 4.7 out of 5 stars
3 Reviews
1/4" x 25' Stainless Steel Brake Line & Fitting Kit
1/4" x 25 | Stainless Steel Tubing Coil - 4LifetimeLines
Stainless Steel
5.0
Rated 5.0 out of 5 stars
1 Review
1/4" x 25' Stainless Steel Tubing Coil
3/16" x 16 Stainless Steel Spring Gravel and Rock Guard
5.0
Rated 5.0 out of 5 stars
1 Review
3/16" x 16' Stainless Steel Spring Gravel and Rock Guard
3/16" x 8 Stainless Steel Spring Gravel and Rock Guard
5.0
Rated 5.0 out of 5 stars
4 Reviews
3/16" x 8' Stainless Steel Spring Gravel and Rock Guard
1/4" x 16 Stainless Steel Spring Gravel and Rock Guard
5.0
Rated 5.0 out of 5 stars
1 Review
1/4" x 16' Stainless Steel Spring Gravel and Rock Guard
Sale
1/4 Stainless Steel 12 ft Coil Flared & Fitted - 4LifetimeLines
Stainless Steel
4.5
Rated 4.5 out of 5 stars
2 Reviews
1/4" x 12' Stainless Steel Coil Flared & Fitted
5/16" x 25 | Stainless Steel Tubing Coil
Stainless Steel
5.0
Rated 5.0 out of 5 stars
3 Reviews
5/16" x 25' | Stainless Steel Tubing Coil
3/8" x 16 Stainless Steel Spring Gravel and Rock Guard
5.0
Rated 5.0 out of 5 stars
1 Review
3/8" x 16' Stainless Steel Spring Gravel and Rock Guard