Skip to product information
1 of 1
1 product view Open images for a closer look Compare photos with product details

Blue Sea Systems

Blue Sea Systems CableCap Stud Insulator, Black – 0.70 to 0.30 Stud, Made in USA

Blue Sea Systems CableCap Stud Insulator, Black – 0.70 to 0.30 Stud, Made in USA

SKUCT-100345

Regular price $3.70
Regular price Sale price $3.70
Sale Sold out
Shipping calculated at checkout.
Shipping rewards at $100 U.S. orders of $100 or more get free standard shipping, plus $10 off Expedited and Overnight.

In stock

Quantity
Use the Tug & Tow SKUInclude this SKU when you contact us about fit, availability, or reorders.
Delivery shown at checkoutShipping options, final costs, and delivery estimates appear before payment.
Check fit before orderingReview dimensions, part numbers, model details, and compatibility notes.
Confirm the details before checkoutFit can depend on your boat, RV, trailer, vehicle, or equipment. Contact us before ordering if compatibility is critical.Ask a product question

Product details

Review the details before ordering.

Ensure the safety and longevity of your marine electrical system with the Blue Sea Systems 4011 CableCap. This essential stud insulator is engineered to protect high-amperage electrical connections on alternators, starters, windlasses, and other critical devices from accidental shorts, corrosion, and dangerous arcing in harsh marine environments. Proudly made in the USA, this durable PVC cap offers reliable, marine-grade protection for a wide range of applications. Upgrade your vessel's electrical integrity today.

Key Benefits & Features:

  • Robust Electrical Insulation: Designed to insulate single stud-type connectors, preventing short circuits and arcing on high-amperage termination points.
  • Broad Compatibility: Securely fits stud sizes ranging from 0.70 to 0.30 inches and is compatible with 4, 6, and 8 AWG cable sizes, offering versatile application.
  • Durable Marine-Grade Construction: Crafted from resilient PVC material for long-lasting performance and resistance to salt spray and moisture in demanding conditions.
  • Discreet & Professional Finish: Features a black color for seamless integration into your vessel's electrical setup.
  • Easy, Tool-Free Installation: Slip-on design allows for quick and simple installation, minimizing vibration-induced loosening.

California Proposition 65 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.

Shipping & returns

Shipping methods, delivery estimates, and final costs appear at checkout before payment. Some bulky, supplier-shipped, or special-handling items may ship separately. See Shipping & Returns for return windows and eligibility.

Fit & compatibility

Review the product title, description, images, dimensions, part numbers, and manufacturer details before purchase. For fit-sensitive items, confirm compatibility with your boat, RV, trailer, vehicle, or equipment.

Need help choosing?

Send us the product link or SKU, plus details about your boat, RV, trailer, vehicle, or project. We will help you narrow down the right option when product fit is not obvious.

View full details