PSI Conversion HAR-GEN3-DBC 99-07 LS (DBC) Standalone Harness

#25800003-DBC

PSI Conversion HAR-GEN3-DBC 99-07 LS (DBC) Standalone Harness

Name: PSI Conversion HAR-GEN3-DBC 99-07 LS (DBC) Standalone Harness
Brand: PSI Conversion
SKU: 25800003-DBC
Price: 724 USD
Availability: InStock
Rating: 5 (1 reviews)

1 Review

Ask a Question

For manual cable operated throttle bodies on pre 2003 and earlier gen LS engines
Allows use of the factory Vortec intake manifold and Multec injectors, including flex-fuel injectors

Model:

Drive By Cable

$724.00

/each

In Stock

Quantity

Need Help? Call to Order

Add to a list

Select an engine to verify Fitment

Select Engine

Product Summary

For manual cable operated throttle bodies on pre 2003 and earlier gen LS engines
Allows use of the factory Vortec intake manifold and Multec injectors, including flex-fuel injectors
Designed for retrofitting 1999-2007 Chevrolet, GMC, Cadillac and Hummer truck Vortec engines (4.8L, 5.3L, 5.7L, 6.0L) with 4L60E or 4L80E transmissions into older muscle cars, street rods or non-emissions-controlled vehicles
Harness features a sliding grommet seal and 4–5 feet of length from the rear of the cylinder head to the PCM mounting position under the dashboard
Sliding grommet seal provides a professional, leak-proof firewall installation

See more details

Key Specs

MFG. Part #	HAR-GEN3-DBC
Brand	PSI Conversion

See more specs

Need To Know

Need help?

855.313.9176

View the Help Center

Quick and Easy Returns

Return Policy

PSI Conversion HAR-GEN3-DBC Details

This PSI standalone harness package lets you choose the right setup for your LS swap, whether you’re running a manual drive-by-cable throttle body on an early Gen 3 truck engine or an electronic drive-by-wire throttle body on a later model. Designed to retrofit 1999-2007 GM truck-based LS/Vortec engines with 4L60E or 4L80E transmissions into older muscle cars, street rods and other non-emissions-controlled vehicles, both harness options are plug-and-play with a simple four-wire hookup, a sliding grommet for clean firewall routing and all the connections you need to get your swap up and running.

Compatible with 1999-2007 Chevrolet, GMC, Cadillac and Hummer truck 4.8L, 5.3L, 5.7L and 6.0L LS/Vortec engines using 4L60E or 4L80E transmissions
Choose 25800003-DBC for manual cable-operated throttle bodies on pre-2003 and other drive-by-cable truck engines, using the red/blue 411 PCM (PCM-1003)
Choose 25800003-DBW for electronic drive-by-wire throttle bodies on 2003-2007 truck engines, using the green/blue 242 PCM (PCM-1005)
Both harness options are designed for retrofits into older muscle cars, street rods or non-emissions-controlled vehicles while retaining the factory Vortec intake manifold and Multec or flex-fuel injectors
Simple four-wire hookup for switched power, constant power and grounds, with a sliding grommet and 4–5 feet of length from the rear of the cylinder head to the PCM for a clean, leak-free firewall pass-through
Harnesses are professionally constructed with all-new GM Delphi connectors and TXL high-temperature wire built to GM specifications and 100% quality inspected before shipping
Each harness includes connections for fuse/relay box, fuel pump control (relay included), fan controls (relays and fuses available separately as KIT-1010), check engine light, speedometer output, tachometer and OBD2 port
Supports all critical engine and transmission sensors and actuators including MAF, MAP, coolant temp, alternator control, upstream O2 sensors, crank and cam sensors, fuel injectors, coil packs, knock sensors and automatic or manual transmission control
Includes complete engine and transmission harness plus instruction manual, with user hook-ups required for fuel pump, switched ignition power, malfunction indicator lamp, speedometer, tachometer and fan relay controls

Specs

If use with a 4L80E trans is needed, you must purchase psi part # HAR-4L80-1 (25800480) Adaptor.

CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

PSI Conversion HAR-GEN3-DBC Specifications

KEY SPECS
MFG. Part #	HAR-GEN3-DBC
Brand	PSI Conversion

GENERAL
Notes	For manual cable operated throttle bodies on pre 2003 and earlier gen LS engines.
Sold in Quantity	Each

Ratings & Reviews

1 Review

Write A Review

1 reviews

Filter by Ratings

Sort Reviews

Made my life easy! Highly recommend.

5.0

8 months ago

Leo

Surrey Canada

Verified

I was stripping the stock lq4 wiring harness to make my own standalone, I got fed up and ordered this unit, was shipped right away and the detail on this harness is beautiful. Very well put together, and almost falls into place. I could have never made my harness look this pretty. Thanks a lot!

Would Recommend

Showing 1 of 1 reviews

Questions & Answers

Be the first to ask a question.

Fitment

2004 Buick Rainier

GM LM4

2004-2005 Cadillac CTS

GM LS6

2006-2007 Cadillac CTS

GM LS2

2002-2011 Cadillac Escalade

GM LM7
GM LQ9

2003-2006 Cadillac Escalade ESV

GM LM7
GM LQ9

2002-2006 Cadillac Escalade EXT

GM LM7
GM LQ9

2007-2011 Chevy Avalanche

GM L76
GM LC9
GM LMG
GM LY5

2012-2013 Chevy Avalanche

GM LY5

2002-2006 Chevy Avalanche 1500

GM LM7

2000-2002 Chevy C1500

4.8 Chevy LS V8
GM LM7
GM LQ4

1998-2002 Chevy Camaro

GM LS1

1997-2000 Chevy Corvette

GM LS1

2001-2004 Chevy Corvette

GM LS1
GM LS6

2005-2007 Chevy Corvette

GM LS2

2006-2009 Chevy Impala

GM LS4

2006-2007 Chevy Monte Carlo

GM LS4

1999 Chevy Silverado 1500

4.8 Chevy LS V8
GM LM7

2000-2011 Chevy Silverado 1500

4.8 Chevy LS V8
GM L20
GM LM7
GM LY2

2012-2014 Chevy Silverado 1500

4.8 Chevy LS V8
GM LM7

2015-2023 Chevy Silverado 1500

5.3 Chevy LT V8

2007 Chevy Silverado 1500 Classic

GM LQ4

2001-2003 Chevy Silverado 1500 HD

GM LQ4

2005-2006 Chevy Silverado 1500 HD

GM LQ4

2007 Chevy Silverado 1500 HD

GM LQ9

2007 Chevy Silverado 1500 HD Classic

GM LQ4

2000-2004 Chevy Silverado 2500

GM LM7
GM LQ4

2005 Chevy Silverado 2500

GM LQ9

2001-2011 Chevy Silverado 2500 HD

GM LQ4

2007 Chevy Silverado 2500 HD Classic

GM LQ4

2001-2006 Chevy Silverado 3500

GM LQ4

2007 Chevy Silverado 3500 Classic

GM LQ4

2007-2011 Chevy Silverado 3500 HD

GM LQ4

2003-2004 Chevy SSR

GM LM4

2014 Chevy Suburban

GM LMG
GM LY5

2015 Chevy Suburban

5.3 Chevy LT V8

2018-2023 Chevy Suburban

5.3 Chevy LT V8

2000-2001 Chevy Suburban 1500

GM LM7

2002-2006 Chevy Suburban 1500

GM L59
GM LM7

2007-2009 Chevy Suburban 1500

GM LC9
GM LMG
GM LY5

2010-2011 Chevy Suburban 1500

GM LC9
GM LMG

2012-2014 Chevy Suburban 1500

GM LMG
GM LY5

2000-2006 Chevy Suburban 2500

GM LQ4

2012-2013 Chevy Suburban 2500

GM LMG
GM LY5

2016-2019 Chevy Suburban 3500 HD

5.3 Chevy LT V8

2000-2006 Chevy Tahoe

4.8 Chevy LS V8
GM L59
GM LM7

2007 Chevy Tahoe

4.8 Chevy LS V8
GM LMG
GM LY5

2008-2011 Chevy Tahoe

GM LC9
GM LMG

2012-2014 Chevy Tahoe

GM LMG
GM LY5

2015-2023 Chevy Tahoe

5.3 Chevy LT V8

2002-2005 Chevy Trailblazer

GM LH6

2006-2009 Chevy Trailblazer

GM LS2

2002-2009 GMC Envoy

GM LM4

2002-2006 GMC Envoy XL

GM LM4

2004-2005 GMC Envoy XUV

GM LM4

2001-2005 GMC Savana 1500

4.8 Chevy LS V8
GM LM7
GM LQ4

2006 GMC Savana 1500

4.8 Chevy LS V8
GM L33
GM LM7
GM LQ4

2007-2014 GMC Savana 1500

4.8 Chevy LS V8
GM L33
GM LQ4

2001-2005 GMC Savana 2500

4.8 Chevy LS V8
GM LM7
GM LQ4

2006-2013 GMC Savana 2500

4.8 Chevy LS V8
GM L33
GM LQ4

2014-2019 GMC Savana 2500

5.3 Chevy LT V8

2002-2005 GMC Savana 3500

4.8 Chevy LS V8
GM LM7
GM LQ4

2006-2013 GMC Savana 3500

4.8 Chevy LS V8
GM L33
GM LQ4

2014-2019 GMC Savana 3500

5.3 Chevy LT V8

2019 GMC Sierra

5.3 Chevy LT V8

1999-2011 GMC Sierra 1500

GM L20
GM LC9
GM LMG

2012-2023 GMC Sierra 1500

5.3 Chevy LT V8

2007 GMC Sierra 1500 Classic

GM L33
GM L59
GM LM7

2001-2003 GMC Sierra 1500 HD

GM LQ4

2005-2006 GMC Sierra 1500 HD

GM LQ4

2007 GMC Sierra 1500 HD

5.3 Chevy LT V8

2007 GMC Sierra 1500 HD Classic

GM LQ4

2019 GMC Sierra 1500 Limited

5.3 Chevy LT V8

1999-2001 GMC Sierra 2500

GM LM7
GM LQ4

2002-2004 GMC Sierra 2500

GM LQ4

2001-2011 GMC Sierra 2500 HD

GM LQ4

2007 GMC Sierra 2500 HD Classic

GM LQ4

2001-2006 GMC Sierra 3500

GM LQ4

2007 GMC Sierra 3500 Classic

GM LQ4

2001 GMC Sierra C3

GM LQ4

2000-2011 GMC Yukon

4.8 Chevy LS V8
GM L20
GM LM7
GM LY2

2012-2013 GMC Yukon

GM LC9
GM LMG

2014-2023 GMC Yukon

5.3 Chevy LT V8

2015-2020 GMC Yukon XL

5.3 Chevy LT V8

2000 GMC Yukon XL 1500

GM LM7

2001-2011 GMC Yukon XL 1500

GM L59
GM LM7
GM LQ4

2000-2011 GMC Yukon XL 2500

GM LQ4

2003-2007 Hummer H2

GM LQ4

2008-2009 Hummer H3

GM LH8

2009 Hummer H3T

GM LH8

1998-2002 Pontiac Firebird

GM LS1

2004 Pontiac GTO

GM LS1

2005-2006 Pontiac GTO

GM LS2