RETURNS NOT ACCEPTED for: Pigtails, Harnesses, or Extensions. These are custom built per order. Please ask any questions before ordering.

Holley-Terminator-X-Max-ECU-26-Pin-J4-(P4)-GM-4L60E-4L80E-Transmission-Extension-Harness

Holley Terminator X Max ECU 26 Pin J4 (P4) GM 4L60E 4L80E Transmission Extension Harness

Part Number: AWP-3033-12
Regular price
$94.50
Sale price
$75.60
Unit price
per 
Shipping calculated at checkout.

This extension harness is a plug and play solution that extends the Holley Terminator X Max ECU 26 pin J4 (P4) connection.

J4, also referred to as P4, is the 26 pin ECU connector on Holley Dominator ECUs and Terminator X Max ECUs that is used for electronic transmission purposes.

AUTOMOTIVE WIRING PRODUCTS Extension Harnesses meet or exceed the quality of Original Equipment (OE) harnesses:

  • Assembled with the same materials found on production engine harnesses.
  • Terminals are crimped with production applicators and/or Rennsteig hand tools to exceed pull test requirements.
  • Wires are protected with high temperature fiberglass sleeving.
  • Assembled in the USA