Smart Repairboy 4PCS PT3739 Injector Pigtail Kit for Duramax L5P Engine V8 6.6L | OE-Style Wiring Harness
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Description
xOverview
Elevate your GM wiring repairs with the Smart Repairboy PT3739 injector pigtail kit. This 4-piece set is designed to align with OE-style specifications, offering a robust, easy-to-route solution for injector connectors across a range of GM, Chevrolet, GMC, and Cadillac models. The kit aims to provide a dependable path for electrical connections in everyday driving and more demanding use alike, without promising guarantees.
What’s included
- 4 injector wiring connectors
- 8 heat shrink sleeves for secure sealing
Key specifications
- Length: 12 inches (30 cm)
- Conductor: 18 gauge tinned copper wire
- Construction aims for durable conductivity and longer service life
Compatibility snapshot
The kit is designed to fit a broad array of GM vehicles and select Cadillacs, Chevrolets, and Jeeps in the listed scope. Refer to your vehicle’s wiring harness part numbers to confirm compatibility with the Duramax L5P V8 and related engines, along with models such as the 2020–2022 Chevrolet Express, Silverado, GMC Sierra, Canyon, Savana, Colorado, and Bolt family. The goal is an OEM-aligned fitment that supports clean, reliable installations in everyday maintenance or repairs.
Why consider this kit
- OE-spec compatibility helps align with factory-style wiring harnesses
- Copper core offers good electrical conductivity and stable power transfer
- 12" length provides flexible routing in engine bays with tight spaces
- Includes four connectors and heat shrink for secure, weather-ready sealing
- One-year warranty provided for added peace of mind
Real-world use cases
Use this kit to refresh injector connections on Duramax L5P engines and other listed GM platforms. It’s well suited for replacing worn pigtails, tidying up aged wiring, or supporting routine maintenance that aims to minimize diagnostic interruptions. These are practical options to keep electrical paths clean and organized, especially when routing around the engine bay’s contours.
Installation tips
- Confirm part numbers and vehicle compatibility before installation
- Route wiring away from heat sources and moving parts
- Test continuity after connections are made and inspect for wear during routine checks
Note: This product is a replacement part intended to reference OEM specifications and is not a medical product or guarantee of performance improvements. Results can vary based on vehicle condition and proper installation.
FAQ
Q: What vehicles does the Smart Repairboy PT3739 injector pigtail kit fit?
A: Designed to fit a broad GM range, including Duramax L5P engines and listed Chevrolet, GMC, and Cadillac models.
Q: What is included with the 4-piece injector pigtail kit?
A: Four connectors and eight heat shrink sleeves are included, with a one-year warranty option for support.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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