My Account
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order

Blue Sea Systems 4002 Dual Entry PowerPost Cable Insulator Cap Black

Manufacturer

Picture for manufacturer Blue Sea Systems

Part Number

4002
12 reviews
Sale Price

$8.84

In Stock (7)

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Blue Sea Systems 4002 is a dual entry PowerPost cable insulator designed to protect battery terminals and power distribution posts from accidental short circuits. This black protective cap provides essential safety coverage for marine, RV, and automotive electrical systems.

Key Features:

  • Dual cable entry design accommodates two cables on a single post
  • Top-hinged lid allows easy access to connection points without complete removal
  • Accepts cable sizes up to 2/0 AWG (70 mm²)
  • Cable entry holes sized at 0.7 inches (17.8 mm) diameter
  • Durable black insulating material for long-lasting protection
  • Prevents accidental contact with live terminals

This cable cap is an essential safety component for any electrical system using PowerPost or standard battery terminals. The hinged lid design makes it convenient to inspect connections or add additional wiring without removing the entire insulator. Ideal for marine applications, recreational vehicles, emergency vehicles, and any application requiring protected high-current connections.

WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (DEHP) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Awesome company!!!!!! Will definitely order from here again! Order arrived fast. Was exactly as described/pictured. Great price!

No bad. Could indicate line size, like 5/16 in. I had to lookup Dorman's P/N to find the size. Tks

Great price on a great product! The Thule Raceway 9002 3-bike trunk-mounted rack is what I purchased. Shipping was fairly quick and the product was new, in original packaging and was a great deal compared with other sites for the same product! Would order again!

quick and easy

so far so good thanks

Thank you.

found what I need at the price I want to pay. there is not a lot of details on what you are buying. I found I had to check with other sites to insure I was buying what I wanted. also postponed buying brakes becuase of this.

Lowest prices as far as I could find on the internet that shipped to Hawaii. Seem very reliable and good on updating you on the status of your order.

Easy to deal with about shipping questions, great prices, and friendly customer service. One of the few places who says "I'll return you call" and actually does. Thanks...

Quick and easy

- Updated review -<br>Autoplicity.com contacted me after my original review and admitted to making a mistake with my order. They have refunded my shipping and I am happy now.<br><br>- Original review -<br>After 18 days the part finally arrived. The filter appears to have been sent directly from K&N, but I ordered on the 20th of June, yet the packing date that K&N Engineering Inc. shows is July 3rd.

Amazed

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy