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GM Gen III Drive-By-Cable Standalone Wiring Harness
for Jeep Conversions
WH-G3-DBC — Configurable Harness Package
Novak has long been the go-to source for clean, reliable wiring integration on Jeep swap projects. For our Gen III Drive-By-Cable customers, we now offer a best-in-class standalone harness solution built to pair cleanly with the way Jeep conversions are actually installed.
We’ve partnered with BP Automotive to provide a premium, conversion-focused harness package — labeled, simplified, and configured to match your injector, transmission, MAF, alternator, and MAP sensor requirements.
What This Harness Is
- Standalone GM Gen III engine harness for Drive-By-Cable throttle bodies
- Configured to your build using the options above (injectors, transmission, MAF, ALT, MAP)
- Designed for conversion installs — organized, labeled, and intended for clean Jeep integration
Drive-By-Cable (DBC) Clarification
This product is for Drive-By-Cable throttle setups (no electronic throttle pedal/TAC module requirements). If you are running Drive-By-Wire, you’ll want the DBW harness option instead.
Choosing Your Options
The images below help you identify the correct connector style before ordering.
Injectors
Tip: If your injector has the “USCAR/EV6” rectangular plug with a top latch, pick EV6.
Transmissions
MAF
Tip: If you are not running a MAF (speed density), contact us before ordering so the correct strategy is selected.
ALT (Alternator Plug)
MAP Sensor
Jeep Conversion Integration
Many standalone harnesses are built generically. This offering is selected specifically to support the conversion workflow Novak customers expect: clean routing, practical branch lengths, and a simplified integration mindset for Jeep installs.
PCM / ECM Notes
- Harness and PCM must be compatible for your engine generation and operating strategy.
- If your PCM and harness did not come from the same donor configuration, compatibility must be verified.
- Transmission selection impacts wiring and PCM requirements (especially for 4L60E / 4L80E).
If you need help confirming your PCM/harness match, contact our sales team and we’ll help you get it right before you order.
Important Notes
- Emissions & O2 sensors: Your final configuration must comply with your local jurisdiction.
- Do not modify harness circuits unless you fully understand the effect on reliability and warranty coverage.
- Lead times: Build/ship timing can vary seasonally. If your project is schedule-driven, contact us for current timing.
Need the Rest of the Swap Electronics?
- Vehicle Speed Sensor solutions (speed signal for GM PCM + speedometer needs)
- Tachometer signal solutions for popular Jeep clusters
- PCM mounting bracket assembly for clean underhood installation
Support
If you’re not certain which option set matches your engine, call our sales team before ordering. A few minutes confirming injector connectors, MAF style, alternator plug, MAP sensor style, and transmission type prevents delays and rework.
For inquiries and orders, contact our sales team at the number listed on the Contact page.