Battery Cable Flanged Bulkhead Connector + Insulator Boot - Heavy Duty Weatherproof 12V Copper Core 3/8 Post, 550 Amp Max Rating – for Marine, Solar, Car Audio - Made in the USA (Black & Red)
Condition: New
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Availability:
In Stock.
Arrives
Monday, Sep 22
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Color: Red + Black
Features
- IP65 Weatherproof Design - Protect your electrical system from the elements and pass current through a panel or bulkhead up to 13/32" (0.40") thick. Includes a reinforced silicone gasket for the flange of the connector and a boot for the terminal post to keep water, dirt, and debris out
- High Energy Transfer - The nickel-plated steel 3/8" post and solid copper core allow higher torque than conventional bulkhead connectors with brass shaft. They are continuously rated for 440 amps @ 12V, or a maximum of 550A @12V for up to 12 minutes with a 80% duty cycle. Max voltage rating of 48vDC
- Easy to Install - A 1.375" hole is all the connector needs to pass through the panel and a large hex nut secures it on the back side. The 4 holes of the flange allow you to use screws or bolts to further secure the connector and prevent any rotation
- Heavy Duty Construction - The body is made of glass-filled Nylon, the core is made from copper, the silicone gasket is fiberglass reinforced, and the insulator boot has a IP65 weatherproof rating and meets USCG, ISO and ABYC safety requirements for energized terminals
- Proudly Made in the United States - We are USA based, firefighter-owned, and we stand behind our products. All our connectors and parts are manufactured using high-quality materials. We understand it takes reliable power to get the job done right, so we only offer the best of the best
Manufacturer: R2X Racing
Brand: R2X Racing
Item Weight: 12.3 ounces
Package Dimensions: 7.2 x 3.35 x 2.32 inches
Item model number: R2X-WPFBC-38
Manufacturer Part Number: R2X-WPFBC-38
Date First Available: August 30, 2021
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Sep 22
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Red + Black
These are excellent quality. But you're paying for it
Reviewed in the United States on August 1, 2025 by Dan T.
Color: Red + Black
Fit and function was spot on. They are well built and were exactly what I needed to clean up the engine compartment of my classic car.
Reviewed in the United States on July 20, 2025 by Birdman727 Birdman727
Color: Red
High quality. Used this on the firewall for the power wire ro run through. Comes with a gasket but no bolts though. Other than that I recommend it.
Reviewed in the United States on July 4, 2025 by Amazon Customer
Color: Red + Black
Installing these as a bulkhead pass-thru where I need connector covers for both sides - the weather side and the inside to prevent accidental shorts. It would be nice if I could order a pair of covers I would be sure would fit tightly and potentially as a replacement should something happen to the original.
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Reviewed in the United States on October 2, 2024 by Eric N.
Color: Red + Black
Built my own 412 ah 12v lifepo4 attery for my rv. These terminals were perfect. A little spendy, but heavy duty and safe. We'll worth it.
Reviewed in the United States on January 5, 2025 by Michael T. Doherty
Color: Red
Well built. Definitely worth it!
Reviewed in the United States on October 17, 2024 by Justin
Color: Red
Really nice power pass-thru; highly recommend
Reviewed in the United States on April 28, 2025 by Daughter's Equipment Manager
Color: Red + Black
Absolutely perfect and good quality! A little expensive but totally worth it!!! They even give torque specs to make sure you get the best cleaning force without ruining stud. And customer service is responsive and very accommodating!!!
Reviewed in the United States on May 2, 2023 by Michael M. Michael M.