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โก Power Your LS Swap with Precision & Reliability!
The Gledewen Standalone Wiring Harness is a premium, OEM-designed wiring solution tailored for 1997-2006 GM Vortec LS engines with 4L60E or 4L80E transmissions. Featuring high-quality copper core TXL wires and GM Delphi connectors, it offers a complete plug-and-play package including all essential sensors and fuse blocks. Built for durability and ease of installation, it comes with universal color coding and a 10-year warranty, making it the go-to harness for professional-grade LS swaps.



| ASIN | B09PMJ3JPK |
| Best Sellers Rank | #32,396 in Automotive ( See Top 100 in Automotive ) #79 in Car Electrical Wiring Harnesses |
| Brand | Gledewen |
| Brand Name | Gledewen |
| Cable Type | automotive wiring |
| Connector Type | Gm Delphi Connectors |
| Connector type | Gm Delphi Connectors |
| Customer Reviews | 4.0 out of 5 stars 153 Reviews |
| EU Spare Part Availability Duration | 10 Years |
| Included Components | 1 x English Manual. 1 x Complete Engine and Transmission Wiring Harness including all engine and transmission sensor connectors, EV1 fuel injectors, 3 wire MAF sensor, 6 fuse blocks, 24x Crank Sensor. |
| Item Weight | 2.97 Kilograms |
| Item weight | 2.97 Kilograms |
| Manufacturer | Gledewen |
| Material | Polyethylene (PE) Plastic Copper |
| Material Type | Polyethylene (PE) Plastic Copper |
| Model | GW-QXS03 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | GW-QXS03 |
| Recommended Uses For Product | body |
| Recommended uses for product | body |
| Unit Count | 1 Count |
R**H
Decent value
I haven't installed it yet but it looks like all the plugins will clip on to stock items and it looks well made. I looked at one that was twice the cost and it was no better than this one
N**A
Worth the money
All pins were correct. Replaced the loom with some better but over all a good harness
K**S
Excatly what I needed
Just what I needed.
C**S
๐๐ป๐๐ป
So far quality is good and I did have to move a few pins to set it up for the Truck LS ECM. Most of the colors are the same as the factory harness just double check your schematics to make sure everythingโs in the right spot and make sure you check everything with a multi meter for connectivity. I will update this post when I have the motor running so far I will give it the five stars. Stay tuned. Update: it works perfectly and worth every penny.
T**N
Wrong injector plugs
Seems to be fine. Can confirm the injector plugs are wrong tho, have to pigtail them all, that's annoying but whatever. Fan connection isn't clear either (requires separate fan relay setup). Damned good, but not great. Worth the lower cost tho, imo. Edit: noticed somethibg else, it's a 3-PIN MAF connector. This is a giant pain in the neck. 99% of available MAF sensors aren't the old school 3 pin. Trying to sort this out now.
Trustpilot
1 month ago
2 weeks ago