JBtuned Nissan 240SX S13/S14 Auto-to-Manual / Full Replacement Clutch Line

Product Description

Complete the clutch hydraulics on an automatic-to-manual converted Nissan 240SX or replace the factory clutch plumbing on an original manual-transmission car with the JBtuned S13/S14 Full Clutch Line.

This system runs directly from the clutch master cylinder to the transmission slave cylinder, providing a complete hydraulic path without relying on the original chassis hard lines or factory flexible clutch hose.

Quick Specifications

• Product Type: Full master-to-slave clutch line
• Vehicle: Nissan 240SX
• Chassis: S13 / S14
• Applications: Automatic-to-manual transmission conversions or factory manual clutch-line replacement
• Line Construction: PTFE hydraulic hose with stainless-steel braid and black outer coating
• Fittings / Hardware: CNC-machined stainless steel
• Factory Clutch Hard Line: Not required
• Factory Flexible Clutch Hose: Not required
• Installation: Direct master-to-slave hydraulic connection
• Manufactured: Assembled in-house by JBtuned in the USA

Designed for 240SX Automatic-to-Manual Conversions

Converting an S13 or S14 Nissan 240SX from an automatic transmission to a manual requires adding a complete clutch hydraulic system that was not present in the automatic chassis.

The JBtuned Full Clutch Line solves the hydraulic-line portion of that conversion by providing a dedicated connection from the clutch master cylinder directly to the transmission slave cylinder.

Instead of sourcing and installing the original multi-piece 240SX clutch-line arrangement, the JBtuned line provides a simpler master-to-slave solution designed specifically for the conversion.

This product addresses the clutch hydraulic line only. The clutch pedal assembly, master cylinder, slave cylinder, manual transmission, and other components required for an automatic-to-manual conversion are not included.

Also a Complete Replacement for Factory Manual Cars

You do not need to be performing an automatic-to-manual conversion to use this line.

On an original manual-transmission S13 or S14, the JBtuned line can replace the existing clutch hard lines and flexible hose with a single full-length master-to-slave hydraulic line.

This makes it useful for aging factory clutch plumbing, restored or modified cars, and engine-bay cleanup projects where the original hard-line routing is no longer desired.

Eliminates the Factory Multi-Piece Clutch Line

The factory manual 240SX clutch hydraulic system uses multiple sections between the master and slave cylinders.

The JBtuned system bypasses that arrangement and creates a direct hydraulic path between the two components. The smaller factory flexible clutch-line section is therefore no longer required.

The result is a simpler clutch hydraulic system with fewer original lines and connections remaining in the engine bay.

Cleaner Engine-Bay Routing

Because the line does not need to follow the original hard-line path, installers have greater freedom to route the clutch hydraulics cleanly through the engine bay.

This makes the system particularly useful for modified or tucked engine bays where eliminating unnecessary factory hard lines helps create a simpler, more deliberate layout.

Final routing should maintain adequate clearance from exhaust components, moving parts, sharp edges, and other potential sources of heat or abrasion.

PTFE Line with Stainless-Steel Fittings

The clutch line uses a PTFE inner liner with stainless-steel braided reinforcement and a black protective outer coating.

CNC-machined stainless-steel fittings and hardware are used throughout the system, creating a durable hydraulic assembly intended for long-term automotive clutch use.

Separate Adapter Design for Easier Installation

The JBtuned clutch line uses separate stainless-steel connection adapters rather than requiring the entire hose assembly to be rotated during installation.

The adapters can be installed at the master and slave connections first, allowing the hydraulic line to be attached afterward without repeatedly twisting or winding the hose around during assembly.

The slave-side connection also uses a smooth-radius 90° configuration to redirect the line without relying on a sharp internal corner.

What Is Included?

The kit includes the JBtuned full-length clutch hydraulic line and the stainless-steel connection fittings required for the intended S13/S14 master-to-slave installation.

Clutch master cylinder, slave cylinder, pedal assembly, transmission, and any other components shown for installation reference are not included.

Which Application Is This For?

Automatic-to-Manual Conversion: Use this line when adding clutch hydraulics to an S13/S14 chassis originally equipped with an automatic transmission.

Factory Manual Replacement: Use the same line to replace and bypass the original clutch hard-line and flexible-hose arrangement on an existing manual-transmission 240SX.

In both applications, the end result is the same: a complete direct hydraulic connection from the clutch master cylinder to the slave cylinder.

Installation Notes

Install the stainless-steel connection adapters before attaching the hydraulic line so the hose does not need to be twisted during installation.

After installation, properly bleed the clutch hydraulic system and inspect all fittings and connections for leaks before operating the vehicle.

This product is designed for Nissan 240SX S13/S14 clutch hydraulic applications. Do not assume compatibility with other vehicles based solely on similar master or slave cylinder connections.