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SKU:
NLT1W01678
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GM Holden VZ 8-Pin to 6-Pin Electronic Throttle Body Adapter Harness
$42.99
In Stock
$42.99
Sale price
$42.99
Regular price
This electronic-throttle adapter harness connects a compatible eight-pin engine harness to a compatible six-pin throttle body on selected 2003-2007 GM and Holden VZ applications.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- 2003-2007 GM electronic-throttle applications using the pictured eight-pin harness and six-pin throttle body
- Holden VZ applications using the same connector pair and pinout
- LS-engine conversions only when ECM, pedal, TAC strategy, throttle body, and calibration are compatible
Product Overview
An LS throttle-body swap can be mechanically bolted together and still fail because the pedal, TAC/ECM, throttle body, and pinout are not electrically compatible. This short harness solves only the specified eight-pin-to-six-pin connection; it does not convert an incompatible control strategy.
The listing previously treated 25383922 as the harness number, but that GM number is also associated online with an intake-manifold assembly, so it is not being claimed here as a confirmed interchange. Compare connector keys, wire count, pin locations, and the conversion instructions before powering the throttle system.
Key Features & Performance
- Eight-pin vehicle-side to six-pin throttle-body adaptation
- For selected GM / Holden electronic throttle systems
- Prewired connector conversion where pinout matches
- Avoids cutting an otherwise correct harness
- New aftermarket adapter lead
Common Uses
- Connecting a six-pin throttle body to a compatible eight-pin harness
- Completing an electronic-throttle intake conversion
- Replacing a damaged adapter after the system design is verified
Technical Specifications
- Product Type: Throttle Body Adapter Harness
- Primary Application: GM / Holden electronic-throttle conversions using 8-pin to 6-pin adapter
- Package Quantity: 1 harness
- Condition: New
- Replacement Type: Aftermarket
- Vehicle-Side Connector: 8-pin
- Throttle-Body Connector: 6-pin
- System: Drive-by-wire electronic throttle
- Programming: Vehicle calibration may be required
- Condition: New aftermarket
Installation & Fitment
- Disconnect battery power before opening throttle connectors
- Compare pin locations rather than wire color alone
- Confirm pedal, ECM/TAC, and throttle-body compatibility
- Secure away from exhaust and moving linkage, then perform the required throttle learn and code check
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Model, production date, serial number, connector, dimensions, installed options, and previous repairs can affect fitment. Compare the original component and reference information before purchase.
Frequently Asked Questions
Q: Does this harness make any six-pin throttle body work with any eight-pin car? A: No. Connector adaptation does not change incompatible electronics, motor control, sensors, or calibration.
Q: Is 25383922 a confirmed harness reference? A: Available research also identifies that number with a GM intake manifold, so rely on connector and pinout verification rather than that number alone.
Q: How do I confirm this is the correct part? A: Match both connector shells, pin count and population, wiring diagram, throttle-body number, ECM/TAC system, pedal assembly, Holden/GM platform, and required calibration.
Q: Is this supplied by the original equipment manufacturer? A: No. This is a new aftermarket item. Brand, model, and part numbers are used only to identify compatible applications.
Part Summary
keywords: 8 pin to 6 pin throttle adapter, Holden VZ throttle body harness, GM drive by wire adapter, LS electronic throttle conversion, six pin throttle connector
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.