ISR Performance Stainless Steel Front Brake Lines - Nissan 240sx 89-98

The ISR Performance Stainless Steel Front Brake Lines are the front axle replacement brake line pair for the 1989-1998 Nissan 240SX (S13 and S14). PTFE inner core, stainless steel braided cover, and a yellow PVC outer jacket for additional abrasion and corrosion protection. CNC machined zinc plated fittings, permanently crimped. Sold as a pair for the front axle.

What It Does

The factory rubber front brake lines on the S13 and S14 expand under hard braking, which softens pedal feel and reduces stopping consistency. After two or three decades of heat cycling and ozone exposure, those rubber lines are also at the end of their service life on most 240SXs still on the road. The ISR stainless lines replace them with a braided assembly that doesn't expand under pressure and doesn't degrade from environmental exposure.

Net effect: firmer pedal feel, more consistent brake response, and a line that won't fail when you don't expect it. Critical for autocross, drift, and track use where rubber lines can be vulnerable to flying debris and repeated heat cycling.

Construction

• PTFE inner core (no volumetric expansion under pressure)
• Stainless steel braided cover (abrasion resistance, tensile strength)
• Yellow / gold PVC outer jacket (additional abrasion and corrosion protection)
• CNC machined zinc plated fittings, permanently crimped

Fitment

• 1989-1994 Nissan 240SX (S13) with stock front calipers
• 1995-1998 Nissan 240SX (S14) with stock front calipers

Designed for factory front caliper installations. If you've upgraded to aftermarket front calipers or a Z32 conversion, use the dedicated conversion line kit instead of this set.

Pair With Rear Lines

For complete brake line replacement front and rear, pair this set with the ISR Stainless Steel Rear Brake Lines (IS-NIS-1225REARS). Both pairs are needed to replace all four corners.

Warranty

All ISR assembled brake line kits are backed by a lifetime warranty.

What's in the Box

• 1x Pair of ISR stainless steel front brake lines (driver and passenger)
• Mounting bolts and washers required for installation

Product Details

Brand: ISR Performance

Part Number: IS-NIS-1225FRTS

Type: Stainless Steel Front Brake Lines (Pair)

Vehicle Fitment: 1989-1998 Nissan 240SX (S13 and S14)

Axle: Front

Inner Core: PTFE

Cover: Stainless steel braid

Outer Jacket: Yellow / gold PVC (abrasion and corrosion protection)

Fittings: CNC machined, zinc plated, permanently crimped

Caliper Compatibility: Stock 240SX front calipers (not Z32 or big brake conversions - use dedicated conversion kit)

Recommended Pairing: ISR Stainless Steel Rear Brake Lines (IS-NIS-1225REARS) for complete 4-corner replacement

Warranty: Lifetime

Sold: Pair (driver and passenger), with installation hardware

Legality: Off-road and competition use only