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Item #:
26696764
Painless Performance 60217 Standard Length EFI Harness for 1999-2006 GM Gen III 4.8, 5.3 & 6.0L w/Mechanical Throttle Body
77% of respondents would recommend this to a friend
Item #:
26696764
XCD 2111
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Painless fuel injection wiring utilizes all new TXL wire, OEM fitment connectors and grouped harness breakouts making for an easy install and saving you from using old re-worked wiring
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What Stands Out
Custom Fit Design
Engineered specifically for 1999-2006 GM Gen III engines, ensuring perfect compatibility with 4.8, 5.3, and 6.0L models, simplifying installation and reducing setup time.
Painless Installation
Includes clear labeling and simplified wiring, allowing even novice users to navigate the harness easily, thus facilitating a quick and hassle-free installation process.
Durability Assurance
Constructed with high-quality materials to withstand demanding engine conditions, offering enhanced longevity and reliability compared to competitors, guaranteeing long-term performance for your vehicle.
Product Details
- Utilizes new TXL wire and OEM fitment connectors for easy install
- Machine crimped terminals ensure OE quality
- Each harness is tested before leaving the facility
- Includes diagnostic port and check engine light with powder coated bracket
- Features high strand count copper and high-quality insulation for reliability
- Compatible with 1999-2006 GM Gen III 4.8, 5.3 & 6.0L w/Mechanical Throttle Body
| Brand Name | Painless |
| Number of Items | 1 |
| Manufacturer | Painless Performance Products, LLC |
| UPC | 749823602175 |
| Unit Count | 1 Count |
| Global Trade Identification Number | 00749823602175 |
| Included Components | Harness |
| Item Type Name | Standard Length EFI Harness for 1999-2006 GM Gen III 4.8, 5.3 & 6.0L w/Mechanical Throttle Body |
| Model | 60217 |
| Part Number | 60217 |
| Item Dimensions | 14.5 x 10.25 x 5.25 inches (36.8 x 26 x 13.3 cm) |
| Item Weight | 7.5 pounds (3.4 kg) |
| Connector Type | [Oem Connectors] |
| Material Type | Copper |
| Cable Type | Proprietary |
| Brand | Painless |
| Material | Copper |
| Item dimensions L x W x H | 14.5 x 10.25 x 5.25 inches (36.8 x 26 x 13.3 cm) |
Who Should Buy?
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Engine Swappers
Ideal for individuals swapping GM Gen III engines into custom builds needing a reliable EFI harness.
-
Restoration Enthusiasts
Great for those restoring classic vehicles with Gen III engine swaps, simplifying wiring with quality materials.
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Performance Tuners
Beneficial for tuners looking to enhance engine performance with a high-quality and adaptable EFI wiring solution.
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Standard Vehicles
Not suitable for factory vehicles without modifications, as it’s designed specifically for swapped Gen III engines.
Product Description
Painless Performance 60217 Standard Length EFI Harness for 1999-2006 GM Gen III 4.8, 5.3 & 6.0L w/Mechanical Throttle Body
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is included in the Painless Performance 60217 EFI Harness package?
Answer: The Painless Performance 60217 EFI Harness package includes a high-quality, standard length EFI harness specifically designed for the 1999-2006 GM Gen III engines. You'll find all necessary connectors, terminals, and detailed installation instructions that facilitate a seamless setup. This comprehensive package is essential for ensuring compatibility with the 4.8, 5.3, and 6.0L engines, with a mechanical throttle body configuration. It's perfect for enthusiasts looking to upgrade their fuel system without complications. -
Question:
Is the Painless Performance EFI Harness compatible with aftermarket accessories?
Answer: Yes, the Painless Performance EFI Harness is designed to work with a range of aftermarket accessories. Its versatile setup allows you to integrate additional components such as upgraded fuel pumps, custom tuning systems, or modern engine management solutions. This adaptability is particularly valuable for car enthusiasts who want to enhance their vehicle's performance while using advanced aftermarket options, ensuring you can fine-tune your vehicle as desired. -
Question:
How does the installation process for the Painless Performance EFI Harness work?
Answer: Installing the Painless Performance EFI Harness involves a series of straightforward steps that can be completed with basic tools. The package includes a clear instructional manual that outlines the wiring connections needed for your specific engine model. It's advisable to plan your installation in a clean workspace, taking time to double-check connections to ensure a smooth operation once installed. This makes it an excellent choice for both professional mechanics and DIY enthusiasts. -
Question:
What are the benefits of using a Painless Performance EFI Harness?
Answer: Using a Painless Performance EFI Harness offers several advantages, including enhanced reliability and performance of your engine's fuel management system. Its design minimizes the risk of electrical issues by providing high-quality wiring components and connectors. Additionally, users appreciate how the harness helps streamline the wiring process, reducing potential troubleshooting time. This is particularly beneficial when undertaking engine swaps or upgrades, where efficient and reliable wiring makes all the difference. -
Question:
Can the Painless Performance EFI Harness be used with custom fuel setups?
Answer: Absolutely, the Painless Performance EFI Harness is engineered to accommodate custom fuel setups. Whether you’re looking to install a performance fuel pump or tweak fuel delivery systems, this harness supports a variety of configurations. This flexibility makes it ideal for tuners and builders who are customizing their engine setups for optimized performance, ensuring that you have the proper connections for all your unique fuel management needs. -
Question:
What tools are required for the installation of the EFI Harness?
Answer: To install the Painless Performance EFI Harness, you'll typically need basic hand tools such as wire strippers, crimpers, a screwdriver set, and possibly a multimeter for testing connections. A good workspace with ample lighting will also help you work efficiently. These tools ensure that you can connect and secure the wiring safely, giving you confidence in your installation. Advanced projects may require additional tools, but the core installation remains accessible for many. -
Question:
Is professional installation recommended for this harness?
Answer: While it is possible to install the Painless Performance EFI Harness yourself, professional installation is recommended for those unfamiliar with automotive electrical systems, especially in high-performance builds. Professionals can ensure that every connection is properly made and that the harness integrates seamlessly with your engine's setup. This thorough approach also helps in avoiding potential pitfalls that can arise during DIY installations, giving you peace of mind as you prepare to hit the road. -
Question:
Will the EFI harness work with traditional ignition systems?
Answer: The Painless Performance EFI Harness is primarily designed for vehicles using electronic fuel injection and may not be fully compatible with traditional ignition systems without modifications. Users planning to mix these systems need to verify compatibility with their specific vehicle setup. For those maintaining original ignition setups, consider consulting an expert to assess the possibility of integration with the harness features effectively. -
Question:
Which engines can the Painless Performance EFI Harness be used on?
Answer: The Painless Performance 60217 EFI Harness is specifically designed for the GM Gen III engines, including the popular 4.8L, 5.3L, and 6.0L models, particularly those fitted with a mechanical throttle body. This specification ensures that users get a tailored solution that meets the unique wiring requirements for these engines, making it an excellent choice for enthusiasts undertaking swaps or upgrades involved with these popular GM models. -
Question:
Where can I buy Painless Performance 60217 Standard Length EFI Harness in Montserrat?
Answer: You can purchase the Painless Performance 60217 Standard Length EFI Harness for 1999-2006 GM Gen III 4.8, 5.3 & 6.0L w/Mechanical Throttle Body at Ubuy in Montserrat. Ubuy offers a reliable online shopping experience, where you can find a variety of automotive products, including this harness, with convenience and trusted customer service.
Painless Wiring Harnesses Editorial Review
The B000N8K874 harness is suitable for those attempting to do a motor swap to a 99-2006 mechanical throttle Vortec V8. However, if one is looking to retain the factory gauges, ABS or air conditioning, then additional circuits would have to be added. It is also worth noting that the harness won't work on a V6 engine, and the Delco# AFS106 or equivalent is required for the O2 sensors. The tank pressure sensor is not necessary unless one plans on running E85, and whether or not this same harness will work for an engine swap into another vehicle is dependent on the year, make and model of the engine and vehicle.
Customer Reviews & Ratings
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Pros
- Suitable for motor swaps to 99-2006 mechanical throttle Vortec V8 engines
Cons
- Additional circuits need to be added to retain factory gauges, ABS or air conditioning
Platform Trust & Buyer Confidence
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Jazz
Verified buyer
“Easy to use and always helpful and sorts any issues I've had past and present”
1 September 2026 · via Trustpilot
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“I always receive support when I engage customer service. Overall my experience with UBUY has been top notch. Keep up the good work.”
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“The delivery was fast and the product came undamaged and authentic.”
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“Fast, convenient and cheap. Great store!”
27 August 2026 · via Trustpilot
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XCD 2111
Order now and get it around Saturday, September 26
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Features & Benefits
- Utilizes all new TXL wire, OEM fitment connectors and grouped harness breakouts
- Easy install and saves you from using old re-worked wiring
- Machine crimped terminals match OE quality
- Every EFI harness is tested before leaving the facility
- Diagnostic port and check engine light included with powder coated bracket
- High strand count copper and high-quality insulation for high abrasion resistance and easy routing.
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Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.