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Pro Marine Marine-Grade Heat Shrink Electrical Connectors

Pro Marine YFD Yellow Female Heat Shrink Disconnect – 10–12 AWG – 25 Pack

The Pro Marine YFD Yellow Female Heat Shrink Disconnect is a fully insulated, marine-grade electrical terminal designed for creating secure, removable electrical connections in boat wiring systems.

Featuring a 0.250-inch (1/4-inch) female quick-disconnect receptacle, this terminal connects to a compatible male blade terminal, allowing electrical components to be disconnected for maintenance, troubleshooting, or replacement.

Designed for 10–12 AWG electrical wire, these yellow female disconnects are suitable for marine electrical repairs, accessory installations, wiring harness repairs, and electrical equipment connections requiring larger wire sizes.

Each connector features an adhesive-lined heat-shrink insulation sleeve that helps protect the crimped wire termination from moisture, corrosion, and environmental exposure when properly installed.

The female quick-disconnect design provides a convenient, serviceable connection that can be separated and reconnected without cutting the wiring or removing the crimped terminal.

Each package contains 25 yellow female heat shrink disconnect terminals, making them ideal for marine repair shops, electrical installers, boat builders, and boat owners performing wiring repairs.

PRO MARINE BULK PURCHASE SAVINGS

BUY 4 PACKS AND SAVE 10%!

Purchase 4 packs of YFD Female Disconnects and receive a 10% discount.

Ideal for marine repair shops, boat builders, electrical installers, service technicians, and customers purchasing connectors in bulk.

Product Information

• Part Number: YFD
• Brand: Pro Marine
• Product Type: Female Heat Shrink Disconnect
• Connector Type: Female Quick Disconnect
• Terminal Configuration: Fully Insulated
• Wire Gauge: 10–12 AWG
• Insulation Color: Yellow
• Terminal Size: 0.250 Inch / 1/4 Inch
• Terminal Material: Tinned Copper
• Insulation Type: Adhesive-Lined Heat Shrink
• Connection Method: Crimp and Heat Shrink
• Shrink Ratio: Approximately 3:1
• Package Quantity: 25 Female Disconnect Terminals
• Bulk Purchase: 4 Packs / 100 Connectors – Save 10%
• Application: Marine Electrical Wiring and Equipment Connections
• Matching Male Disconnect: Pro Marine YMD (Sold Separately)
• Condition: New

Product Identification

The following Pro Marine part numbers identify the yellow female disconnect and its separately available matching male disconnect.

What This Part Is Used For

Female heat shrink disconnect terminals provide the receptacle side of a removable electrical connection.

The terminal is crimped onto the end of an electrical wire and then connected to a compatible male quick-disconnect blade.

The 10–12 AWG wire range makes these yellow terminals suitable for installations using larger-gauge electrical wiring, provided the connector and mating connection are properly rated for the circuit.

The adhesive-lined heat-shrink sleeve helps protect the wire termination from moisture and corrosion, while the female quick-disconnect design allows connected electrical equipment to be removed or serviced without cutting the wiring.

Common Marine Electrical Applications

• Boat electrical wiring repairs
• Marine accessory installations
• Electrical panel and distribution connections
• Marine switch and control wiring
• Boat wiring harness repairs
• Replacement of damaged electrical terminals
• Electrical equipment connections requiring periodic service
• Marine lighting and accessory circuits
• Custom boat wiring installations
• Electrical maintenance and troubleshooting

These are general application examples. Confirm the terminal's electrical suitability before installation. Wire gauge alone does not establish the current rating of a completed connection.

Important Wire Gauge and Connector Fitment Note

Pro Marine YFD is a yellow female disconnect intended for 10–12 AWG wire and compatible 0.250-inch male disconnect terminals.

The yellow insulation identifies the 10–12 AWG wire range. This connector should not be substituted for a smaller wire-gauge terminal without verifying the appropriate crimp specifications.

This product is the female side of the connection. The corresponding male disconnect is sold separately.

Always confirm wire gauge, terminal dimensions, electrical load, and mating connector compatibility before installation.

Compatible Wire Sizes and Electrical Applications

Pro Marine YFD is designed for 10–12 AWG wire and a compatible 0.250-inch male quick-disconnect terminal.

Connector Configuration

MATCHING MALE CONNECTION AVAILABLE

Pro Marine YMD Yellow Male Heat Shrink Disconnect – 25 Pack

Complete your electrical connection with the matching Pro Marine YMD Yellow Male Heat Shrink Disconnect.

YMD provides the male blade side of the connection and is designed to mate with a compatible 0.250-inch female terminal.

Pairing the male and female disconnects allows electrical components to be connected, disconnected, and serviced without cutting the wiring.

Both products are sold in 25-piece packages. Male and female terminals are purchased separately.

Common Symptoms and Replacement Reasons

Marine electrical terminals may need replacement when corrosion, physical damage, or poor contact affects the reliability of the connection.

Common Reasons to Replace a Female Disconnect

• Corrosion or oxidation on the female terminal
• Loose or worn female receptacle
• Damaged heat-shrink insulation
• Broken or deteriorated wire termination
• Intermittent electrical accessory operation
• Signs of overheating or discoloration
• Damaged wiring harness connections
• Installation of new marine electrical equipment
• Replacement of unsuitable or incorrectly sized terminals
• Preventive electrical wiring maintenance

Inspect both sides of the electrical connection. A damaged or undersized mating male terminal can also contribute to unreliable contact.

Installation and Service Tips

Proper crimping and heat-shrink installation help produce a dependable wire termination in marine electrical environments.

Recommended Installation Practices

• Disconnect electrical power before beginning wiring repairs.
• Confirm that the wire size is 10 AWG or 12 AWG.
• Verify that the mating male terminal uses a compatible 0.250-inch blade.
• Strip the wire insulation to the appropriate length for the crimp barrel.
• Insert the prepared wire fully into the terminal barrel.
• Use a crimping tool designed for insulated heat-shrink terminals and the correct wire-gauge range.
• Crimp the terminal securely and inspect the completed connection.
• Use a controlled heat gun to recover the heat-shrink sleeve.
• Apply heat evenly until the insulation conforms around the wire and forms its seal.
• Allow the connection to cool before handling or applying mechanical stress.
• Inspect the terminal for exposed wire, incomplete shrinkage, or damaged insulation.
• Verify secure engagement with the male terminal before restoring electrical power.

Key Features and Benefits

• Marine-Grade Electrical Terminal: Suitable for marine wiring applications where moisture and corrosion protection are important.
• Female Quick-Disconnect Design: Provides the receptacle side of a removable electrical connection.
• Adhesive-Lined Heat Shrink: Helps seal the crimped wire termination against moisture and environmental exposure.
• Tinned Copper Construction: Provides electrical conductivity with corrosion-resistant terminal plating.
• 10–12 AWG Wire Compatibility: Designed for the specified larger-gauge electrical wiring range.
• Standard 0.250-Inch Connection: Connects to compatible 1/4-inch male quick-disconnect terminals.
• Serviceable Electrical Connection: Allows connected equipment to be disconnected without cutting the wiring.
• Yellow Insulation: Provides convenient identification of the intended wire-gauge range.
• Convenient 25-Pack: Provides multiple terminals for marine wiring repairs and installations.
• Bulk Purchase Savings: Buy four 25-packs for 100 total connectors and save 10%.
• Matching Male Version Available: Pro Marine YMD male disconnects are sold separately.
• Dealer Pricing: Qualified marine professionals can apply for wholesale pricing.

Frequently Asked Questions

What is Pro Marine YFD?

Pro Marine YFD is a yellow female heat shrink quick-disconnect terminal sold in a 25-piece package. It provides the female receptacle side of a removable electrical connection.

What wire gauge does YFD fit?

YFD is intended for 10–12 AWG wire. Always verify the wire gauge before installation.

What size male terminal fits YFD?

YFD accepts a compatible 0.250-inch (1/4-inch) male blade. The male terminal must have the correct dimensions and electrical rating.

Does Pro Marine sell the matching male disconnect?

Yes. Pro Marine offers the YMD Yellow Male Heat Shrink Disconnect in a 25-piece package.

View Pro Marine YMD Male Disconnect

Are these female disconnects waterproof?

The adhesive-lined heat-shrink sleeve helps create a moisture-resistant seal around the crimped wire termination. The removable male-to-female interface itself should not be considered waterproof unless the complete assembly is rated for that application.

Can YFD connectors be disconnected and reconnected?

Yes. Quick-disconnect terminals are designed to allow electrical equipment to be separated and reconnected for servicing. Replace terminals if they become loose, corroded, or damaged.

How many connectors are included in one pack?

Each Pro Marine YFD package contains 25 yellow female heat shrink disconnect terminals. Male terminals are sold separately.

Is there a discount when purchasing 100 connectors?

Yes. Purchase 4 packs of YFD for a total of 100 female disconnect terminals and save 10%.

Can these terminals be used for boat electrical repairs?

Yes. They can be used in suitable marine electrical wiring applications when the wire gauge, connector size, electrical load, and installation environment are appropriate.

Are yellow disconnects interchangeable with red disconnects?

Not for crimping onto the same wire size. Yellow disconnects are designed for 10–12 AWG wire, while red disconnects in this product range are intended for smaller wire gauges. Select the terminal according to the actual wire size.

What tools are needed to install YFD terminals?

Use a suitable wire stripper, a crimping tool and die appropriate for 10–12 AWG insulated heat-shrink terminals, and a controlled heat gun to recover the insulation sleeve.

Dealer Discounts & Store Policies

Wholesale Marine Parts Pricing

Pro Marine USA supplies genuine OEM and aftermarket marine engine parts, electrical connectors, wiring components, and maintenance products to professional marine technicians, repair shops, dealerships, and retail customers.

Qualified marine businesses can apply for a Pro Marine dealer account to access wholesale pricing on eligible marine parts and supplies.

Dealer accounts provide professional marine businesses with access to competitive wholesale pricing and convenient online ordering.

Apply for Dealer Pricing

Shipping Information

• Free shipping on orders over $100 within the continental United States.
• In-stock orders received before 5:30 PM EST ship the same business day, Monday–Friday.
• Shipping options available through UPS, USPS, and FedEx.
• Typical delivery time is 1–5 business days.
• Shipping times may vary based on destination, carrier service, and product availability.

30-Day Return Policy

• Eligible returns are accepted within 30 days.
• Products must be new, unused, and in original packaging.
• Installed or crimped electrical terminals are not returnable.
• Return authorization is required before returning merchandise.
• Contact Pro Marine USA before returning any merchandise.

Need Help Selecting Electrical Connectors?

Need assistance confirming the correct wire gauge, connector type, or marine electrical component?

Contact Pro Marine USA or call 941-721-3000.

Searchable Part Numbers

YFD, YMD

YMD is the separately available matching male disconnect. Male terminals are not included with YFD.

Searchable Terms

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Pro Marine Marine-Grade Heat Shrink Electrical Connectors

Pro Marine YMD Yellow Male Heat Shrink Disconnect – 10–12 AWG – 25 Pack

The Pro Marine YMD Yellow Male Heat Shrink Disconnect is a marine-grade electrical terminal designed to create secure, removable connections in boat wiring systems. Featuring a 0.250-inch (1/4-inch) male blade terminal, this connector mates with a compatible female quick-disconnect terminal.

Designed for 10–12 AWG electrical wire, these yellow male disconnects are suitable for marine electrical repairs, accessory installations, wiring harness repairs, and equipment connections requiring larger wire sizes.

Each connector features an adhesive-lined heat-shrink insulation sleeve that helps protect the crimped wire termination from moisture, corrosion, and environmental exposure when properly installed.

The male quick-disconnect design provides a convenient connection point for electrical components that may need to be disconnected for maintenance, troubleshooting, inspection, or replacement.

For a complete removable connection, pair this male terminal with the matching Pro Marine YFD Yellow Female Heat Shrink Disconnect, sold separately.

Each package contains 25 yellow male heat shrink disconnect terminals, making them ideal for marine repair shops, boat builders, electrical installers, and boat owners performing wiring repairs.

PRO MARINE BULK PURCHASE SAVINGS

BUY 4 PACKS AND SAVE 10%!

Purchase 4 packs of YMD Male Disconnects and receive a 10% discount.

Ideal for marine repair shops, boat builders, electrical installers, service technicians, and customers purchasing connectors in bulk.

Product Information

• Part Number: YMD
• Brand: Pro Marine
• Product Type: Male Heat Shrink Disconnect
• Connector Type: Male Quick Disconnect
• Terminal Configuration: Insulated Crimp Barrel with Male Blade
• Wire Gauge: 10–12 AWG
• Insulation Color: Yellow
• Terminal Size: 0.250 Inch / 1/4 Inch
• Insulation Type: Adhesive-Lined Heat Shrink
• Connection Method: Crimp and Heat Shrink
• Package Quantity: 25 Male Disconnect Terminals
• Bulk Purchase: 4 Packs / 100 Connectors – Save 10%
• Application: Marine Electrical Wiring and Equipment Connections
• Matching Female Disconnect: Pro Marine YFD (Sold Separately)
• Condition: New

Product Identification

The following Pro Marine part numbers identify the yellow male disconnect and its separately available matching female disconnect.

What This Part Is Used For

Male heat shrink disconnect terminals provide the blade side of a removable electrical connection. The terminal is crimped onto the end of a wire and then connected to a compatible female quick-disconnect receptacle.

The 10–12 AWG wire range makes these yellow terminals suitable for electrical installations using larger-gauge wiring, provided the terminal and mating connection are appropriately rated for the circuit.

The heat-shrink insulation helps protect the crimped wire termination from moisture and corrosion, while the male quick-disconnect design allows connected equipment to be removed or serviced without cutting the wiring.

Common Marine Electrical Applications

• Boat electrical wiring repairs
• Marine accessory installations
• Electrical panel and distribution connections
• Marine switch and control wiring
• Boat wiring harness repairs
• Replacement of damaged electrical terminals
• Electrical equipment connections requiring periodic service
• Marine lighting and accessory circuits
• Custom boat wiring installations
• Electrical maintenance and troubleshooting

These are general application examples. Confirm the terminal's electrical suitability before installation. Wire gauge alone does not establish the current rating of a completed connection.

Important Wire Gauge and Connector Fitment Note

Pro Marine YMD is a yellow male disconnect intended for 10–12 AWG wire and compatible 0.250-inch female disconnect terminals.

The yellow insulation identifies the 10–12 AWG wire range. This connector should not be substituted for a smaller wire-gauge terminal without verifying the appropriate crimp specifications.

This product is the male side of the connection. The corresponding female disconnect is sold separately.

Always confirm wire gauge, terminal dimensions, electrical load, and mating connector compatibility before installation.

Compatible Wire Sizes and Electrical Applications

Pro Marine YMD is designed for 10–12 AWG wire and a compatible 0.250-inch female quick-disconnect terminal.

Connector Configuration

MATCHING FEMALE CONNECTION AVAILABLE

Pro Marine YFD Yellow Female Heat Shrink Disconnect – 25 Pack

Complete your electrical connection with the matching Pro Marine YFD Yellow Female Heat Shrink Disconnect.

YFD provides the female receptacle side of the connection and is designed to mate with a compatible 0.250-inch male blade terminal.

Pairing the male and female disconnects allows electrical components to be connected, disconnected, and serviced without cutting the wiring.

Both products are sold in 25-piece packages. Male and female terminals are purchased separately.

Common Symptoms and Replacement Reasons

Marine electrical terminals may need replacement when corrosion, physical damage, or poor contact affects the reliability of the connection.

Common Reasons to Replace a Male Disconnect

• Corrosion or oxidation on the male blade terminal
• Bent, broken, or damaged male blades
• Loose or worn quick-disconnect connections
• Damaged heat-shrink insulation
• Broken or deteriorated wire termination
• Intermittent electrical accessory operation
• Signs of overheating or discoloration
• Damaged wiring harness connections
• Installation of new marine electrical equipment
• Preventive electrical wiring maintenance

Inspect both sides of the electrical connection. A damaged or loose female receptacle can also contribute to unreliable contact with the male blade.

Installation and Service Tips

Proper crimping and heat-shrink installation help produce a dependable wire termination in marine electrical environments.

Recommended Installation Practices

• Disconnect electrical power before beginning wiring repairs.
• Confirm that the wire size is 10 AWG or 12 AWG.
• Verify that the mating female terminal accepts a compatible 0.250-inch male blade.
• Strip the wire insulation to the appropriate length for the crimp barrel.
• Insert the prepared wire fully into the terminal barrel.
• Use a crimping tool designed for insulated heat-shrink terminals and the correct wire-gauge range.
• Crimp the terminal securely and inspect the completed connection.
• Use a controlled heat gun to recover the heat-shrink sleeve.
• Apply heat evenly until the insulation conforms around the wire and forms its seal.
• Allow the connection to cool before handling or applying mechanical stress.
• Inspect the male blade for damage or distortion before connecting.
• Verify secure engagement with the female terminal before restoring electrical power.

Key Features and Benefits

• Marine-Grade Electrical Terminal: Suitable for marine wiring applications where moisture and corrosion protection are important.
• Male Quick-Disconnect Design: Provides the blade side of a removable electrical connection.
• Adhesive-Lined Heat Shrink: Helps seal the crimped wire termination against moisture and environmental exposure.
• 10–12 AWG Wire Compatibility: Designed for the specified larger-gauge electrical wiring range.
• Standard 0.250-Inch Connection: Connects to compatible 1/4-inch female quick-disconnect terminals.
• Serviceable Electrical Connection: Allows connected equipment to be disconnected without cutting the wiring.
• Yellow Insulation: Provides convenient identification of the intended wire-gauge range.
• Convenient 25-Pack: Provides multiple terminals for marine wiring repairs and installations.
• Bulk Purchase Savings: Buy four 25-packs for 100 total connectors and save 10%.
• Matching Female Version Available: Pro Marine YFD female disconnects are sold separately.
• Dealer Pricing: Qualified marine professionals can apply for wholesale pricing.

Frequently Asked Questions

What is Pro Marine YMD?

Pro Marine YMD is a yellow male heat shrink quick-disconnect terminal sold in a 25-piece package. It provides the male blade side of a removable electrical connection.

What wire gauge does YMD fit?

YMD is intended for 10–12 AWG wire. Always verify wire gauge before installation.

What size female disconnect fits YMD?

YMD features a 0.250-inch (1/4-inch) male blade. It connects to a compatible female disconnect of the same size.

Does Pro Marine sell the matching female disconnect?

Yes. Pro Marine offers the YFD Yellow Female Heat Shrink Disconnect in a 25-piece package.

View Pro Marine YFD Female Disconnect

Are these male disconnects waterproof?

The adhesive-lined heat-shrink sleeve helps create a moisture-resistant seal around the crimped wire termination. The removable male-to-female interface itself should not be considered waterproof unless the complete assembly is rated for that application.

Can the male and female terminals be disconnected and reconnected?

Yes. Quick-disconnect terminals allow electrical equipment to be disconnected and reconnected for maintenance or replacement. Replace terminals if they become loose, damaged, or corroded.

How many connectors are included in one pack?

Each Pro Marine YMD package contains 25 yellow male heat shrink disconnect terminals. Female terminals are sold separately.

Is there a discount when purchasing 100 connectors?

Yes. Purchase 4 packs of YMD for a total of 100 male disconnect terminals and save 10%.

Can these terminals be used for boat electrical repairs?

Yes. They can be used in suitable marine electrical wiring applications when the wire gauge, connector size, electrical load, and installation environment are appropriate.

Are yellow disconnects interchangeable with red disconnects?

Not for crimping onto the same wire size. Yellow disconnects are designed for 10–12 AWG wire, while red disconnects in this product range are intended for smaller wire gauges. Select the terminal according to the actual wire size.

What tools are needed to install YMD terminals?

Use a suitable wire stripper, a crimping tool and die appropriate for 10–12 AWG insulated heat-shrink terminals, and a controlled heat gun to recover the insulation sleeve.

Dealer Discounts & Store Policies

Wholesale Marine Parts Pricing

Pro Marine USA supplies genuine OEM and aftermarket marine engine parts, electrical connectors, wiring components, and maintenance products to professional marine technicians, repair shops, dealerships, and retail customers.

Qualified marine businesses can apply for a Pro Marine dealer account to access wholesale pricing on eligible marine parts and supplies.

Dealer accounts provide professional marine businesses with access to competitive wholesale pricing and convenient online ordering.

Apply for Dealer Pricing

Shipping Information

• Free shipping on orders over $100 within the continental United States.
• In-stock orders received before 5:30 PM EST ship the same business day, Monday–Friday.
• Shipping options available through UPS, USPS, and FedEx.
• Typical delivery time is 1–5 business days.
• Shipping times may vary based on destination, carrier service, and product availability.

30-Day Return Policy

• Eligible returns are accepted within 30 days.
• Products must be new, unused, and in original packaging.
• Installed or crimped electrical terminals are not returnable.
• Return authorization is required before returning merchandise.
• Contact Pro Marine USA before returning any merchandise.

Need Help Selecting Electrical Connectors?

Need assistance confirming the correct wire gauge, connector type, or marine electrical component?

Contact Pro Marine USA or call 941-721-3000.

Searchable Part Numbers

YMD, YFD

YFD is the separately available matching female disconnect. Female terminals are not included with YMD.

Searchable Terms

Pro Marine YMD, YMD male disconnect, yellow male heat shrink disconnect, yellow male quick disconnect, marine male disconnect terminal, marine electrical quick disconnect, yellow male spade connector, yellow male blade connector, 1/4 inch male disconnect, 0.250 inch male disconnect, 250 series male terminal, 10 AWG male disconnect, 12 AWG male disconnect, 10-12 AWG heat shrink terminal, 12-10 AWG male disconnect, yellow insulated male terminal, adhesive lined heat shrink terminal, marine grade electrical connector, marine wiring connector, boat electrical connector, boat wiring repair terminal, marine accessory wiring connector, marine switch wiring terminal, marine electrical repair supplies, removable electrical connector, crimp heat shrink disconnect, heat shrink spade terminal, heat shrink blade terminal, male quick connect terminal, marine quick connect terminal, yellow male disconnect 25 pack, male electrical connectors bulk, 100 male disconnect terminals, bulk marine electrical connectors, Pro Marine heat shrink terminals, marine electrical terminal supplies