The Wiring Specialties SR20DET Wiring Harness includes the engine and transmission harness for a USDM S13 240sx with an SR20DET swap. Replace both harnesses with brand new ones and save time and money! 

* For AEM MAP, Apexi, or Haltech conversions, please consider ordering the Pre-made PRO Series version of this harness 

Engine: S13 SR20DET  

• Any Redtop from 1990-1993.5 Silvia
• Any Blacktop from 1994-1998 180sx
• Supports Engines with ECU - 62, 63, E4, E5 See example of ECU CODE
• For ECU code J4/J5 (Type-X III)
• Select above and we will prep the harness prior to shipping.

Chassis: USDM S13 240SX   For RHD/Australian/JDM chassis - click here

• Any US S13 240sx manufactured in 1989-1994 (Including the convertible and ABS cars)
• Transmission Harness supports 5-speed and Auto to 5-speed conversions

Engine and Transmission Harnesses Feature:

• Brand new wiring and connectors
• INCLUDES ABS wiring for the S13 240sx
• Support the OEM Consult port
• Installs in 15 minutes- Improved grounding routing by addition of internal cross-grounding
• OEM connector specs (no cheap aftermarket connectors that fall apart)
• Designed for a factory-like installation and fit and finish for the S13 240sx
• Retains OEM wiper functionality- Retains Cruise Control and all gauge functions
• Works with the Greddy/Freddy intake manifolds
• All A/C, Temp override, Auto On/Off functions properly
• OEM wiring connections and 'T' junctions. No soldered connections at all
• Fully tested after production for an easy plug-and-play replacement
• Replaces the OEM engine harness entirely
• Supports both S13 and S14 Speed Sensors
• Transmission Harness supports 5-speed and Auto to 5-speed conversions
• Will improve engine performance through better grounding and power wiring
• Turn Key ENGINE START Guarantee 
• Tech support for our customers 7 days a week.