This is a Wiring Specialties RB25DET Transmission/Lower Wiring Harness. Includes connections to the Starter, alternator, transmission and fuse box. The harness will fit the USDM 240sx and JDM/AusDM S14 Silvia. The Pre-Made Harness will save you time, improve engine performance, give your engine bay a factory look and comes equipped with our Turn Key Start-Up Guarantee! 

Engine: R33/Stagea RB25DET

• Any RB25DET from 1994-1997 Skyline GTS-T- Any RB25DET from Nissan Stagea- Supports Series 1 and Series 2 engines/trans- Only supports engines running a manual transmission

Chassis: S14 240SX

• Any S14 240sx manufactured in 1994-1998- Transmission Harness supports 5-speed and Auto to 5-speed conversions- Harness supports ABS equipped cars- Harness MUST BE used with an OEM RB 2-pin Oil Pressure sending unit

Transmission Harness Features:

• Brand new wiring and connectors
• Nylon Expandable high-temp sleeving. NO TAPE.
• Installs in 15 minutes- Improved grounding connectors over stock
• OEM connector specs (no cheap aftermarket connectors that fall apart)
• Replaces the OEM transmission harness entirely
• Designed for a factory-like installation and look for the S14 240sx
• Supports RB25/RB20 Speed Sensor ONLY
• OEM wiring connections and 'T' junctions. No soldered connections at all
• Fully tested after production for an easy plug-and-play replacement
• Turn Key ENGINE START Guarantee 
• Tech support for our customers 7 days a week.