ISR Performance Stainless Steel Clutch Line Kit (Shorty) | 1989-1998 Nissan 240SX S13 / S14 | IS-240-412
ISR Performance Stainless Steel Clutch Line Kit (Shorty) – 1989–1998 Nissan 240SX S13 / S14 | IS-240-412
ISR Performance’s stainless steel braided clutch line in the Shorty length for the 1989–1998 Nissan 240SX (S13 and S14) — a direct replacement for the factory rubber clutch line with a stainless steel braided outer sleeve and PTFE inner liner. The Shorty length is specifically designed for engine-swapped 240SX builds where the stock-length clutch line is too long or routes incorrectly with the swapped engine in place. Eliminates the hydraulic line expansion that causes a spongy, inconsistent clutch pedal on the factory rubber line.
Shorty vs. Standard Length — Which Do You Need?
ISR Performance offers this clutch line in two lengths — standard and Shorty. The correct choice depends on your engine:
- Shorty (this listing — IS-240-412): Designed for engine-swapped 240SX builds — primarily SR20DET, RB20DET, RB25DET, and other common S-chassis swap engines where the engine position and firewall routing differs from the stock KA24DE. The Shorty length routes correctly with the swapped engine in place
- Standard length: Designed for stock KA24DE-powered 240SX builds where the factory clutch line routing is retained
If you have a stock KA24DE engine, the standard-length line is the correct choice. If you have an SR20DET, RB, or other engine swap, the Shorty is the correct choice. Confirm your specific engine and routing before ordering.
Why Upgrade the Clutch Line
The factory 240SX clutch line is rubber — adequate for stock use but prone to expansion under hydraulic pressure as the rubber ages and softens. This expansion absorbs some of the hydraulic pressure that should be moving the slave cylinder, resulting in a spongy, inconsistent clutch pedal with a vague engagement point. On a performance or drift build where precise clutch engagement timing matters, this vagueness is a real problem. The stainless steel braided outer sleeve on ISR’s line is dimensionally rigid under pressure — all hydraulic pressure goes directly to moving the slave cylinder, producing a firm, consistent pedal with a precise, repeatable engagement point. The PTFE inner liner is chemically resistant to brake and clutch fluid and does not degrade over time the way rubber does.
Key Features
- Stainless Steel Braided Construction: Stainless steel braided outer sleeve is dimensionally rigid under hydraulic pressure — eliminates line expansion and delivers all hydraulic pressure directly to the slave cylinder for a firm, consistent pedal feel
- PTFE Inner Liner: Chemically resistant PTFE inner liner is compatible with DOT 3 and DOT 4 clutch fluid and does not degrade or swell over time like rubber — maintaining consistent performance over the life of the line
- Shorty Length for Engine Swaps: Specifically sized for SR20DET, RB, and other common S-chassis engine swaps where the stock-length line does not route correctly. Confirm your specific swap and routing before ordering
- S13 and S14 Fitment: Fits both the S13 (1989–1994) and S14 (1995–1998) 240SX — covering the full run of the S-chassis 240SX in the North American market
- Direct Replacement: Uses the factory clutch line mounting points and connections — no additional modification required beyond confirming correct routing for your specific engine swap
- ISR Performance: ISR Performance is one of the most established S-chassis specialists in the North American aftermarket — with a product line developed specifically for the S13, S14, and S15 platform
Fitment
- Nissan 240SX S13 (1989–1994) — Engine swap applications (SR20DET, RB, etc.)
- Nissan 240SX S14 (1995–1998) — Engine swap applications (SR20DET, RB, etc.)
- Nissan 180SX S13 (1989–1998) — Verify routing for your specific swap
Shorty length is designed for engine-swapped builds. If your 240SX has the stock KA24DE engine, the standard-length clutch line is the correct choice. Confirm your specific engine swap and clutch line routing before ordering. Bleed the clutch hydraulic system after installation. Professional installation recommended.
Specifications
- Brand: ISR Performance
- Part Number: IS-240-412
- Construction: Stainless Steel Braided / PTFE Inner Liner
- Length: Shorty (Engine Swap)
- Application: Nissan 240SX S13 (1989–1994) / S14 (1995–1998) — Engine Swap