Best Automotive Ground Bus Bar in 2022 [*Top Picks*]

Looking for the best automotive ground bus bar on the market? We’ve got you covered. Check out our ratings of absolute bestsellers below and make a final decision.

1675 Reviews Scanned

  • 4
    Bestseller #1
    4" Ground/Power Distribution Terminal Block Battery Bus Bar Set [Max. 300V AC/48V DC] Negative/Positive Insulated Busbar for Auto Marine Car Trailer RV Boat - Black/Red (2426)
      START WITH THE BEST - Every successful project starts with a solid foundation. These sturdy junction blocks feature a robust, tin-plated brass busbar, a flame-resistant base, and durable stainless steel hardware. TRULY UNIVERSAL -  In order to work wherever you might need it, we designed each busbar to handle up to 300V AC, 48V DC, and 150A at 32V DC (4,800W). So whether your working on a boat, a car, or an RV, we've got you covered. YOU'RE COVERED - What's the first thing that always breaks on a busbar? The cover. They're usually thin, rigid, and brittle. Not these covers. Our covers are flexible, flame-resistant, and aren't held on by tiny, breakable clips or easy to lose nuts. WORKS WITH YOU, NOT AGAINST YOU -  Extra tall cover cutouts give you maximum flexibility with minimal effort. Use whatever gauge wire you need, route your wires from either side, double-stack wires if necessary, the covers will still fit. SIMPLE - Sometimes "more options" just means more difficult. Our power and ground 12 terminals, 4-1/2? distribution block gives you everything you need without overcrowding your system, or your patience.
  • 6 Terminal Bus Bar - 150A BusBar Block with Cover, Ground Distribution, Power Distribution Terminal Block w/ 6 M4 Screws + 2 Studs, for Car Boat Marine Caravan RV (New)
    Bestseller #1
    6 Terminal Bus Bar - 150A BusBar Block with Cover, Ground Distribution, Power Distribution Terminal Block w/ 6 M4 Screws + 2 Studs, for Car Boat Marine Caravan RV (New) (273)
      HIGH QUALITY - ni-plated copper bus contact plate for low resistance ,maximum conductivity and protect against corrosion. MAIN PARAMETER - Continuous Ratin:130A AC/150A DC; Max Voltage is 300V AC/48V DC; Terminal Screw: M4 x 6; Terminal Stud: M6 x 2 WIDE USE - JOYHO busbar gives a neat and clean finish to any installation in your Car Boat Marine caravan RV. PROTECT COVER - Cover are Manufactured From PC, Base are Made of Nylon, for Excellent Strength and Durability in Even the Harshest of Environments. BUY WITH CONFIDENCE - Every bus bar is backed by an industry leading 12-month warranty. If you are not 100% satisfied with your purchase, simply take advantage of the No Questions Asked, 30-Day Money Back Guarantee.
  • 12-Way Modular Ground Terminal Block [Expand With Up To 12 Fuses] [Protective Cover] [Copper Bus Bar] Distribution Block for Truck Boat Automotive
    Bestseller #1
    12-Way Modular Ground Terminal Block [Expand With Up To 12 Fuses] [Protective Cover] [Copper Bus Bar] Distribution Block for Truck Boat Automotive (2426)
      1 IS GOOD, 12 ARE BETTER - Instead of piling a mess of wires on top of one single ground post(what happens when you need the bottom one?), our bus bar gives you 12 dedicated grounding locations to keep all of your wires organized. STOP SEARCHING - Looking for a clean ground in a modern car full of plastic can be a challenge. But a bus bar wired directly to the negative battery post can provide each of your accessories with a clear path back to the battery. All-IN-ONE - The modular design can be easily expanded now or later to include up to two ACCEPSPWR0031 6-Way 100A M4 fuse boxes, providing up to 12 fuse protected power terminals and 12 clean grounds in one convenient location. A SOLID CONNECTION - A durable plastic base and cover protect your wiring while a tin-plated, 100A rated copper bar provides exceptional conductivity and corrosion resistance. MORE THAN A WARRANTY - We've got you covered with an industry leading two-year warranty and one of the best customer support in the business.
  • Fastronix 12 Terminal Ground Distribution Block Kit
    Bestseller #1
    Fastronix 12 Terminal Ground Distribution Block Kit (460)
      1/4-20 Input Stud on a Nickel-Plated Bus Bar with 12 #8-32 Stainless Steel Terminal Screws (12) #8 Stainless Steel Terminal Screws (12) Premium Double Crimp Nylon Insulated Ring Terminals and (1) 1/4" Premium Double Crimp Nylon Insulated Ring Rerminal Use with Fastronix Relay Panel (#900-004) and LED Fuse Panel (#500-043) for Professional, Protected Circuits High Current Capacity Rating at 240 Amps (20A per Screw Terminal)
  • PSEQT 6 Terminal Bus Bar Ground Power Distribution Terminal Block Bus Bar with Cover for Auto Marine Car Pickup Trailer RV Boat - Red & Black 2Pcs
    Bestseller #1
    PSEQT 6 Terminal Bus Bar Ground Power Distribution Terminal Block Bus Bar with Cover for Auto Marine Car Pickup Trailer RV Boat - Red & Black 2Pcs (322)
      ✅【Main Parameters】A pair of red & black base 6 screw terminal power distribution block with ring terminal and cover, wide range of use to protect your safety. Max voltage: 300V AC/48V DC; Continuous Rating: 130A AC/150A DC. Terminal Screw: M4 x 6; Terminal Stud: M6 x 2. ✅【Safety Quality】Nickel-plated copper busbar contact plate has low resistance, maximum conductivity and anti-corrosion protection. High temperature resistance, abrasion resistance, and safer use. 6 terminal bus bars are ideal for car and marine boat wiring, helping to organize and clean up messy wiring, suitable for all types of power and ground distribution. ✅【Excellent Accessories】Transparent polycarbonate cover adds extra protection, fireproof and dustproof, and protection from accidental touch. Environmentally friendly flame-retardant nylon base has best mechanical strength and durability. Stainless steel studs and screws are anti-rust and anti-corrosion, suitable for any environment. ✅【Wide Application】Widely used for car, pickup, Trailer, RV, motorcycle, recreational vehicles, truck, Van, caravan, yacht, boat, etc. 6-position single-row busbar provides neat and clean finish for any installation in your boat or car, perfect for all your electrical wiring projects. Easy to install, use M4 screws to fix it in place. ✅【PSEQT WARRANTY】5 Years Warranty Guarantee. Strictly testing before shipping. Feel free contact us for any question, we have professional service and excellent quality team.
  • 6 Terminal Bus Bar - 150A Bus Bar Block & Cover for Ground Distribution for Car Boat Marine Power Distribution Terminal Block w/ 6 Screws + 2 Studs
    Bestseller #1
    6 Terminal Bus Bar - 150A Bus Bar Block & Cover for Ground Distribution for Car Boat Marine Power Distribution Terminal Block w/ 6 Screws + 2 Studs (273)
      HIGH QUALITY - ni-plated copper bus contact plate for low resistance ,maximum conductivity and protect against corrosion. MAIN PARAMETER - Continuous Ratin:130A AC/150A DC; Max Voltage is 300V AC/48V DC; Terminal Screw: M4 x 12; Terminal Stud: M6 x 2 WIDE USE - JOYHO busbar gives a neat and clean finish to any installation in your boat, car or caravan. PROTECT COVER - Cover and base manufactured from robust ABS plastic for excellent strength and durability in even the harshest of environments. BUY WITH CONFIDENCE: Every bus bar is backed by an industry leading 12-month warranty. If you are not 100% satisfied with your purchase, simply take advantage of the No Questions Asked, 30-Day Money Back Guarantee.
  • Ampper 4 Terminals Bus Bar, 4.2
    Bestseller #1
    Ampper 4 Terminals Bus Bar, 4.2" Ground Distribution Block Brass Battery BusBar Junction for Car Vehicle Rv Truck Marine Boat Audio Amplifier and More (Black) (1261)
      Heavy Duty: nickle plated brass thick busbar, base is made of heavy ABS material, mechanically strong, insulated, heat resistant and flame resistant, durable made for safety use. Customized Design: 4 stainless M5 terminal stud & nut for easy installation and route your wires with minimal effort. Operation: Max operating voltage 48V DC / 300V AC, Max continuous amperage: 150A AC / 200A DC. Compatible: this brass battery bus bar junction block is widely used for car, vehicle, Rv, truck, marine and boat, audio, amplifier, video, also electrical equipment / appliances. Package Includes: 1 pcs 4 terminals 4.2" ground distribution brass battery junction block bus bar.
  • Ampper 12 Terminals Bus Bar, 5.3
    Bestseller #1
    Ampper 12 Terminals Bus Bar, 5.3" Power/Ground Distribution Block Brass Battery BusBar Junction for Car Vehicle Rv Truck Marine Boat Audio Amplifier and More (Red & Black) (1261)
      Heavy Duty: nickle plated brass thick busbar, base is made of heavy ABS material, mechanically strong, insulated, heat resistant and flame resistant, durable made for safety use. Customized Design: 12 stainless M4 terminal screws, 1 x 1/4" (M6) terminal stud & nut for easy installation and route your wires with minimal effort. Operation: Max operating voltage 48V DC / 300V AC, Max continuous amperage: 150A AC / 200A DC. Compatible: this brass battery bus bar junction block is widely used for car, vehicle, Rv, truck, marine and boat, audio, amplifier, video, also electrical equipment / appliances. Package Includes: 2 pcs 12 terminals 5.3" power / ground distribution brass battery junction block bus bar.
  • Fastronix 3/8
    Bestseller #1
    Fastronix 3/8" 4 Stud Ground Distribution Block with Cover (460)
      Corrosion Resistant 3/8" Stainless Steel Studs 3 Additional 20 Amp Screw Terminals for Smaller Ground Wires Nickel Plated Brass Bus-Bar and Stainless Steel Hardware for Increased Current Transfer Block is 6.5"x 1.5"x 2" and Rated to 250 Amps at 12VDC Use with Fastronix 2 and 4 Gauge Quality Copper Lugs (405-013 and 405-113)
  • Waterproof Ground Power Distribution Terminal Block Battery Bus Bar [Max. 300V AC/48V DC] [IP65] [Positive/Negative] Insulated Busbar for 12V Automotive Auto Vehicle Marine Car Trailer RV Boat
    Bestseller #1
    Waterproof Ground Power Distribution Terminal Block Battery Bus Bar [Max. 300V AC/48V DC] [IP65] [Positive/Negative] Insulated Busbar for 12V Automotive Auto Vehicle Marine Car Trailer RV Boat (2426)
      SOLID PROTECTION - Busbars installed in water prone areas require the kind of protection that most "universal" products just can’t handle.  Our fully enclosed, waterproof busbars shield your wiring against water intrusion and accidental shorts. BUILT BETTER - You take pride in your project, we take pride in our product. We use copper, not brass, for improved conductivity and corrosion resistance.  And the box is heavy-gauge nylon, not cheap plastic, for better heat resistance and longevity. A COMPLETE KIT - Our busbar includes all of the seals, terminals and mounting bolts you'll need to get the job done. We even include a 2' 4 AWG power wire; because there’s nothing worse than missing that one small part you need to finish a project! BUILD WITHOUT BARRIERS - Your equipment should never hold you back; and these junction blocks don't. With AC/DC Compatibility, carrying a 300V AC & 48V DC rating that supports up to 150A at 32V DC per bus, they are built to make your plans possible. VERSATILE - Multiple mounting options simplify the install process. Mount it directly to any flat surface, use the included Z brackets to mount it to uneven surfaces, or even pair it with PWR0312 to create an incredibly powerful distribution center.
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