- Home Page /
- Car & Vehicle Electronics /
- Vehicle Electronics Accessories /
- Vehicle Audio & Video Installation /
- Amplifier Installation /
- Power & Ground Cable /
- Sky High Oversized 4 Gauge AWG Big 3 Upgrade ...
0 ratings
Item #:
11429364
Sky High Oversized 4 Gauge AWG Big 3 Upgrade Green/Black Electrical Wiring Kit
Item #:
11429364
GBP 33
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
Order now and get it around Sunday, August 02
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
IMPROVES POWER FLOW & REDUCES VOLTAGE DROP - Designed to increase current flow and reduce resistance, helping stabilize voltage and improve overall performance for car audio systems and electrical components.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Heavy Duty Gauge
The Sky High kit features a robust 4 gauge AWG wire, ensuring maximum conductivity and power delivery for your audio system, significantly improving performance over standard wiring options.
User-Friendly Installation
Designed for easy installation, this wiring kit includes all necessary components, streamlining the process for beginners and experts alike, reducing time spent on setup.
Stylish Design
Available in eye-catching green and black colors, this wire not only performs exceptionally well but also adds a stylish touch to your vehicle’s audio setup, appealing to aesthetic-conscious users.
Product Details
- 🔹 COMPLETE BIG 3 UPGRADE KIT - Includes three 4 gauge cables designed to upgrade your vehicle’s primary electrical connections: alternator to battery positive, battery to chassis ground, and engine block to chassis ground.
- 🔹 IMPROVES POWER FLOW & REDUCES VOLTAGE DROP - Designed to increase current flow and reduce resistance, helping stabilize voltage and improve overall performance for car audio systems and electrical components.
- 🔹 PREMIUM OVERSIZED CCA WIRE - Built using Sky High Car Audio oversized copper clad aluminum (CCA), this wire delivers reliable conductivity while maintaining flexibility and cost-effective performance.
- 🔹 PRE-TERMINATED FOR EASY INSTALLATION - Each cable is equipped with copper ring terminals and heat shrink for secure connections, making installation faster, cleaner, and more professional.
- 🔹 IDEAL FOR CAR AUDIO & 12V SYSTEMS - Perfect for supporting amplifiers, subwoofers, and other electrical upgrades by strengthening your vehicle’s grounding and power delivery system.
| Connector Type | Terminal Block Connector |
| Cable Type | CCA 4 Gauge |
| Compatible Devices | Amplifier, Speaker, Head Unit, Battery, Alternator, Ignition System |
| Other Special Features of the Product | Pre-terminated & Shrinked Ends |
| Compatible Phone Models | No Compatible Phone Models |
| Connector Gender | Male-to-Male |
| Number of Pins | 18 |
| Maximum Current | 100 Amps |
| Maximum Voltage | 14 Volts (DC) |
| Gauge | 4.0 |
| Recommended Uses For Product | Upgrading and improving vehicle electrical system ground and power cables |
| Indoor Outdoor Usage | Indoor, Outdoor |
| Color | Green and Black 4 Gauge CCA |
| Item Shape | Round |
| Outer Material | Insulating material |
| Brand Name | Sky High Car Audio |
| Model Name | BIG 3 Battery Upgrade Kit |
| Customer Package Type | Standard Packaging |
| Model | SHA-BIG-4-GRBK |
| Manufacturer | Sky High Car Audio |
| UPC | 747150664798 |
| Part Number | SHA-BIG-4-GRBK |
| Included Components | 3x 4ga cables with terminals for big 3 upgrade |
| Unit Count | 1.0 Count |
| Number of Items | 1 |
| Brand | Sky High Car Audio |
| Special Feature | Pre-terminated & Shrinked Ends |
| Package Weight | 1.3 Pound |
What's in the box
3x 4ga cables with terminals for big 3 upgrade
Who Should Buy?
-
Car Audio Enthusiasts
Ideal for users aiming to enhance their car's audio system performance with high-quality wiring.
-
Performance Vehicles
Perfect for tuning shops or enthusiasts looking to maximize electrical efficiency in high-performance cars.
-
DIY Installers
Great for those who want to tackle their own automotive wiring upgrades without professional help.
-
Casual Users
Not suitable for individuals who do not have any advanced car audio or electrical system needs.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is included in the Big 3 Upgrade Kit?
Answer: The kit includes three 4 gauge cables for upgrading your vehicle's electrical connections. -
Question:
Is the installation easy for beginners?
Answer: Yes, the cables come pre-terminated with copper ring terminals for fast and clean installation. -
Question:
What type of systems is this kit suitable for?
Answer: It's perfect for car audio systems and enhancing 12V electrical setups.
Sky High Car Audio Power & Ground Cable Editorial Review
The Sky High Oversized 4 Gauge AWG Big 3 Upgrade GreenBlack Electrical Wiring Kit is a great first step in upgrading your car's electrical system. It is compatible with any car model and Consists of a set of wires that replace the three main cables - the alternator positive cable, negative battery cable, and chassis grounding cable. The kit is made of CCA (copper clad aluminum) wire, which is not the best material for high-performance audio systems as it is not as conductive as OFC (oxygen-free copper). Overall, it is a budget-friendly option that can improve the performance of your car's electrical system.
Customer Reviews & Ratings
147 customers ratings
-
5 Star
83%
-
4 Star
8%
-
3 Star
1%
-
2 Star
2%
-
1 Star
6%
Review this product
Share your thoughts with other customers
Pros
- Compatible with any car model
- Improves the performance of the car's electrical system
- Budget-friendly option
Cons
- Made of CCA wire, which is not the best material for high-performance audio systems
Platform Trust & Buyer Confidence
MT
Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer
“Accurate delivery timing given”
16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer
“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
LM
Leila
Verified buyer
“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
GBP 33
Order now and get it around Sunday, August 02
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Complete Big 3 Upgrade Kit for optimal electrical connections.
- Enhances power flow and minimizes voltage drop.
- Constructed from premium oversized CCA wire for reliability.
- Easy installation with pre-terminated cables and secure connections.
- Ideal for car audio systems and 12V electrical upgrades.
- Boosts performance of amplifiers, subwoofers, and more.
Ubuy Assurance
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.