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Ignitions and Electrical› Wiring Harnesses

PSI Conversion

LS1/LS6 Standalone Wiring Harness

$574.00 $400.00 Save $174.00

SKU: HAR-1012

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The PSI Conversion HAR-1012 is a standalone wiring harness designed for retrofitting 1997-2002 LS1/LS6 engines and electronic automatic transmissions. It is completely plug-and-play with a four-wire hookup, requiring switched power, constant power, and ground connections. The harness features a sliding grommet seal for leak-proof installation and is constructed with new GM Delphi Connectors and TXL high-temperature wire to GM specifications.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandPSI Conversion
Part NumberHAR-1012
CategoryIgnitions and Electrical

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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