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The Wiring Specialties RB20DET Wiring Harness includes the engine and transmission harnesses for an RB20DET motor installed into any S13 240SX.

Completely replace your old engine and transmission harnesses with brand new ones, save time and money! 

Package includes:

  • Brand new ENGINE harness
  • Brand new INJECTOR sub-harness
  • Brand new TRANSMISSION harness
  • Brand new KNOCK SENSOR harness
  • Instructions on S13/S14 Tach adjustment for RB engine 
  • Any 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
  • Each Engine harness contains the OEM 5-pin MAFS connector
  • Replaces the OEM engine harness entirely
  • INCLUDES ABS wiring for any S13 240sx
  • Support the OEM Consult port (DOHC models and up)
  • Installs in 15 minutes- Improved ECU 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
  • Requires RB20DET/S13 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. 

RB20DET Wiring Harness COMBO for S13 240sx - OEM SERIES

$550.00 Regular Price
$495.00Sale Price
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