Rockville
M8G20B
M8G20B
Amplifier, 20′, 8 AWG, Includes Pre-Installed, Includes 4 Black Heat Shrinks And, Includes 4 Grommets
Features
- Compact 6.5mm size fits easily in installations.
- Designed for premium audio experiences in your environment.
- Crafted to enrich your living space with resonant sound.
- Engineered to pair style with high-fidelity performance.
- Resilient build quality stands up to the elements.
Couldn't load pickup availability
SKU: SKU: M8G20B
View full details



Product Details
Features
-
Mgb Awg Tinned Ofc
Rockville M8G20B 8 AWG Tinned OFC 20-Feet Marine or Car Power/Ground Wire ensuring reliable performance in any setup delivering dependable results in real-world applications.
-
Preinstalled With Black Heat
Pre-installed with black heat shrink and ring terminal designed for convenience and durability delivering dependable results in real-world applications.
-
Includes Black Heat Shrinks
Includes 4 black heat shrinks and 4 black ferrules offering long-lasting reliability and ease of use delivering dependable results in real-world applications.
-
Includes Grommets
Includes 4 grommets for professional-grade performance and ease delivering dependable results in real-world applications.
-
Includes Zip Ties
Includes 8 zip ties to deliver dependable service every time delivering dependable results in real-world applications.
Technical Specifications
- Type of Product AWG Marine/Car Tinned OFC Ground Wire+Loom+Ring Terminal
- Description Introducing the Rockville M8G20B 8 AWG Tinned OFC Wire – the ultimate choice for marine and car audio applications
- Outer Diameter 6.5mm
- Max Load 80A at 20 feet
- Why Choose Our Wire True 8 AWG Gauge: Delivers optimal thickness for high-power applications, minimizing voltage drop and maximizing current flow
- Dimensions 6.5mm (Outer Diameter)
Support
Yes. It's true 8 AWG, made of 735 strands of 0.12mm tinned OFC with a 6.5mm outer diameter, and it's rated for up to 80A over 20 ft. Full-gauge copper cuts voltage drop, so your amp gets the current it needs and doesn't starve when the bass hits.
Tinned copper resists the oxidation that slowly turns bare copper green and drains performance, especially around saltwater and humidity. The M8G20B is 100% tinned OFC, so it keeps conducting cleanly for years in boats and stays reliable in cars that see rain, road salt, and moisture.
You get 20 ft of 8 AWG wire wrapped in black mesh split loom, with a ring terminal, washer, and heat shrink already installed. The kit also includes 4 ferrules, 4 heat shrinks, 4 grommets, and 8 zip ties, which covers terminating, routing, and securing the run.
Yes. Cut it to fit your install, then finish the end with one of the included ferrules and heat shrinks for a clean, tight connection. The flexible marine-grade PVC jacket bends easily through tight spaces, and the grommets protect the wire where it passes through panels or firewalls.
It works for power or ground runs in marine and car audio systems, and it's also suitable for solar panel installations. The PVC jacket holds up to heat, cold, saltwater, oil, gas, and fumes, so it can run through bilges, trunks, and engine bays without breaking down.