Blue Sea Systems Rotating Single Entry Cable Cap, Small Pair, For Integral Wing Nut Posts, 360 Degree Rotating Top

Overview

The Blue Sea Systems 4001 is a rotating single-entry cable cap pair for insulating battery terminals with integral marine wing nut posts. The top rotates 360 degrees so the cable can enter from the angle that works best in a tight battery compartment, and the pair includes one red cap and one black cap for quick polarity identification.

The caps are molded in PVC and suit installations where the battery cable does not leave the terminal in a straight line. On boats with limited clearance around the battery, that extra freedom can make routing cleaner and help keep the terminal area covered once the connection is made.

Key features

• Fits batteries with integral marine wing nut posts
• Rotating top allows 360 degree cable entry from any angle
• Red and black pair makes positive and negative terminals easy to identify
• PVC construction for terminal insulation
• Single-entry cap design keeps the cable exit controlled at the battery post

Compatibility and fit

This model is intended for batteries that use integral marine wing nut posts. It is a practical match when you need to cover the terminal and still bring the cable in from the side that clears the battery box, tie-down, or nearby wiring.

The small pair format works well in compact battery spaces where post protection matters and cable direction cannot be forced into one fixed path. It suits owners who want a cleaner battery connection without changing the existing post style.

Installation and use

On board, this is useful where the cable changes direction as soon as the lug lands on the post. The rotating top lets you line up the opening after the connection is made, which helps reduce strain at the terminal and avoids a hard turn right at the battery.

It is a good fit for starting or house battery installations on smaller boats, service compartments, and other spaces where access is tight and the battery terminals need basic insulation.

What’s included

• One red cable cap
• One black cable cap

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We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

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Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

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Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

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