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  • S15 SR20DET Main Engine Harness for S15 RHD Silvia - OEM SERIES
  • S15 SR20DET Main Engine Harness for S15 RHD Silvia - OEM SERIES
  • S15 SR20DET Main Engine Harness for S15 RHD Silvia - OEM SERIES
  • S15 SR20DET Main Engine Harness for S15 RHD Silvia - OEM SERIES
  • S15 SR20DET Main Engine Harness for S15 RHD Silvia - OEM SERIES

S15 SR20DET Main Engine Harness for S15 Silvia (RHD JDM) - OEM SERIES

  • WRS-S15S15-MAIN
  • S15 SR20DET ECU Patch Harness
  • 5-Point Grounding Kit

USD $449.00

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IN STOCK - Stock OEM option harnesses usually ship in 2-5 days. CALL US if you have a deadline.

ENGINE: S15 SR20DET
CHASSIS: Nissan S15 Silvia RHD 1999-2002
ECU: QT or NQ (S15 OEM) or compatible aftermarket plug-in ECU 

Completely replace your crusty old OEM Engine & Coil Pack harness with a brand-new harness.  Each Pre Made Harness will save you time, improve engine performance, give your engine bay a factory look and includes Tech Support & our Turn-key Start-Up Guarantee!

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

Upgrade to a PRO Series Coil Pack Harness and/or Add a PRO Series Fuel Injector Sub-Harness if you need one.

Harness is for MANUAL TRANSMISSIONS ONLY, including vehicles converted from automatic to manual.

This Plug-N-Play harness completely replaces your JDM RHD S15 Silvia 1999 - 2002 main engine wiring.  

Engine Harness Features:

  • Brand new wiring and connectors
  • 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 S15 Silvia
  • 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
  • Coil Pack Harness included
  • Will improve engine performance through better grounding and power wiring
  • Turn Key ENGINE START Guarantee 
  • Tech support for our customers 7 days a week.