( Brand: Crossdesign ), ( Manufacturer Part Number: BIG20260210-137 ), ( Manufacturer Warranty: 1 Year ), ( Type: Wiring Harness ), ( Custom Bundle: No ), ( Fitment Type: Performance/custom ), ( Year: 2002, 2003, 2004, 2005, 2006 ), ( Mounting Hardware Included: Yes )
Review CROSSDESIGN Fit Standalone T56 Non electric Tran 4.8 5.3 6.0 Wiring Harness fits LS1 1997–2006
Introducing the CrossDesign Big20260210-137 wiring harness, a must-have accessory for LS1 standalone engine swaps in 1997-2006 Chevrolet and GMC trucks with non-electric T56 4.8L, 5.3L, or 6.0L engines. This high-quality wiring harness is designed to simplify the process of integrating your new LS1 engine into your vehicle's electrical system.
The Big20260210-137 wiring harness comes with a comprehensive set of connectors, allowing you to properly connect all necessary electrical components. This includes power distribution, fuel injection, ignition, and accessory circuits. Each connector is color-coded and clearly labeled for easy identification and installation.
This wiring harness features a rugged design with heavy-duty insulation, ensuring reliable and consistent power delivery to your engine and electrical components. The connectors are also sealed to protect against moisture and other environmental factors, making this harness an excellent choice for both street and off-road applications.
Installing the CrossDesign Big20260210-137 wiring harness is a straightforward process. The harness includes detailed instructions and all necessary hardware to make the installation as hassle-free as possible. This harness is also compatible with popular EFI systems, such as Holley, FAST, and Edelbrock, making it a versatile choice for various engine management setups.
By using the CrossDesign Big20260210-137 wiring harness, you can ensure a proper electrical connection between your LS1 engine and your vehicle's electrical system. This not only improves the reliability and performance of your engine but also simplifies the installation process. With its comprehensive set of connectors, rugged design, and straightforward installation, this wiring harness is an essential accessory for any LS1 engine swap in Chevrolet or GMC trucks.
The Crossdesign Big2 T56 wiring harness (part number 20260210-137) is designed for use with standalone T56 manual transmissions in LS1 engines for vehicles manufactured between 1997 and 2006. This wiring harness is a non-electric option, meaning it does not include the electrical connections required for electronic shift control or other advanced features. Here are some pros and cons to help you make an informed decision about purchasing this wiring harness.
Pros:1. Compatibility: This wiring harness is specifically designed for use with the T56 manual transmission in LS1 engines within the given model year range.
2. Simplified Installation: As a non-electric harness, it eliminates the need for complex electronic shift control connections, making the installation process potentially simpler.
3. Cost-Effective: Non-electric transmissions and their corresponding wiring harnesses are generally less expensive than their electronic counterparts.
4. Retains Original Shift Feel: As the wiring harness does not include electronic shift control connections, it allows the driver to maintain the original shift feel of the T56 transmission.
Cons:1. Limited Features: This wiring harness does not include the connections for electronic shift control or other advanced features, which may be desirable for some users.
2. Manual Shifting: With a non-electric wiring harness, the driver must manually shift the transmission, which may not be preferred by those who are used to the convenience of electronic shift control.
3. Potential for Inconsistent Shifting: The manual shifting process may result in inconsistent shifts, particularly when compared to the precision and accuracy of electronic shift control systems.
In conclusion, the Crossdesign Big2 T56 wiring harness (part number 20260210-137) is a suitable choice for individuals who prefer a more traditional manual transmission setup and are looking to save costs. However, it may not be the best option for those who prioritize the convenience and precision of electronic shift control. Ultimately, the decision to purchase this wiring harness depends on your personal preferences and requirements for your LS1-powered vehicle.
part # big20260210137 price
- $102.68
specifications injectiopug:
- for models: Ls1
- for years: 1997-2006
- brand: Crossdesign
- manufacturer part number: BIG20260210-137
- manufacturer warranty: 1 Year
- type: Wiring Harness
- custom bundle: No
- fitment type: Performance/custom
- year: 2002, 2003, 2004, 2005, 2006
- mounting hardware included: Yes
general injectiopug:
- Air Fuel Delivery > Fuel Injection Parts > Additional Fuel Injection Parts
- condition: New
offer injectiopug:
- options: Ship-to-home
- availability: In Stock
- sold: 0
- best offers: True
- started: March 14, 2026
returns injectiopug:
- time: 30 Days
- paid by: Seller
- policy: Returns Accepted
payments injectiopug:
- other
- wallet: Paypal
- credit card: Mastercard
shipping injectiopug:
- class: Standard
- transit: 4-6 Days
- cost: $0.00
- type: Fixed
- service: Standard
seller injectiopug:
- rating: 99.7%
- # reviews: 57366
Crossdesign BIG20260210-137 Is Similar To:
- Crossdesign Ht-02egj0001ard Fit For Car Sport Jdm Aluminum Oil / Gauge Red Filter Sandwich Adapter Plate Set (34.4% similar) $14.02. (December 22nd, 2024)
- Crossdesign Ht-02pha0001abk Wire Harness Fit For 03-07 Ls3 Vortec Standalone Drive By 4l60e Dbw 4.8 6.0 (48.6% similar) $103.37. (January 8th, 2025)
- Crossdesign Ht-02pha0002abk Wiring Harness Fit For Ls1 Standalone T56 Non-electric Tran 4.8 5.3 6.0 1997-06 (75.7% similar) $92.76. (November 3rd, 2025)
- Crossdesign Big20260307-96 Fit For Hyundai Terracan 2000 New Injector Wiring Harness 338104x600 (58.4% similar) Limited life guarantee for workmanship and defects. New injector wiring harness 338104X600 fit for Hyundai Terran 2000 title: injector. Package include: 1 injector wiring harness, if not shown in the photo, it is included. Direct pricing by the factory, no price increase middleman. (April 12th, 2026)
1 offer $102.68 USD
- Offer #1: $102.68 price + free delivery = $102.68* total. 1Set Wiring Harness. Wiring Harness Fit For LS1 Standalone T56 Non-Electric Tran 4.8 5.3 6.0 1997-06.FREE SHIPPING