This is the new (October, 2025) Carp Coastal Marine website. Looking for our old online shopping website? Both websites allow purchasing of our entire line of marine supplies. Click Here for the old Marine Store

Product Search

POLY PLANAR MB41W 4 WHITE VHF EXTENSION SPEAKE
Price: $44.39
Not In Stock
May be available soon with price change.
Item may be special order or out of stock. Please call 321-952-1303 or Contact Us for price and availability.
Retail price is shown. * Add this item to the Shopping Cart to see your reduced price.

Product Description: Poly-Planar MB41W Waterproof VHF Extension Speakers Surface Mount 10W 4-5/8" x 4-5/8", White Waterproof VHF extension speaker can be mounted in any convenient location and feature polypropylene speaker cones with stainless steel grills and mounts. Includes a 10' lead wire with mini-plug.
ALT Part Numbers: PPL MB41W, 12-2001
Important Note for Boat, Engine and Generator Parts: The responsibility for the accuracy of your order rests with you, the customer. If you have any question as to whether or not the part you are ordering is the right one for your boat/engine/generator, please do not hesitate to call us immediately at 321-952-1303 Monday-Friday 8-5pm. This is important to save both time and money. Carp Coastal Marine will be responsible for any mistakes that we make. However, if you make the decision without consult from us, then restocking and freight charges will be added to your order.

Brand: Poly Planar

SKU:665-MB41W

UPC:731128004105

POLY PLANAR MB41W 4 WHITE VHF EXTENSION SPEAKE
POLY PLANAR MB41B 4" BLK EXTENSION SPEAKER
Price: $44.39
Not In Stock
May be available soon with price change.
Item may be special order or out of stock. Please call 321-952-1303 or Contact Us for price and availability.
Retail price is shown. * Add this item to the Shopping Cart to see your reduced price.

Product Description: Poly-Planar MB41B Waterproof VHF Extension Speakers Surface Mount 10W 4-5/8" x 4-5/8", Black Waterproof VHF extension speaker can be mounted in any convenient location and feature polypropylene speaker cones with stainless steel grills and mounts. Includes a 10' lead wire with mini-plug.
ALT Part Numbers: PPL MB41B, 25-0284
Important Note for Boat, Engine and Generator Parts: The responsibility for the accuracy of your order rests with you, the customer. If you have any question as to whether or not the part you are ordering is the right one for your boat/engine/generator, please do not hesitate to call us immediately at 321-952-1303 Monday-Friday 8-5pm. This is important to save both time and money. Carp Coastal Marine will be responsible for any mistakes that we make. However, if you make the decision without consult from us, then restocking and freight charges will be added to your order.

Brand: Poly Planar

SKU:665-MB41B

UPC:731128004112

POLY PLANAR MB41B 4" BLK EXTENSION SPEAKER
POLY PLANAR MB21W 2-1/2 WHITE VHF EXT SPEAKER
Price: $32.39
Not In Stock
May be available soon with price change.
Item may be special order or out of stock. Please call 321-952-1303 or Contact Us for price and availability.
Retail price is shown. * Add this item to the Shopping Cart to see your reduced price.

Product Description: Poly-Planar MB21W Waterproof VHF Extension Speakers Surface Mount 8W 2-15/16" x 2-3/4", White Waterproof VHF extension speaker can be mounted in any convenient location and feature polypropylene speaker cones with stainless steel grills and mounts. Includes a 10' lead wire with mini-plug.
ALT Part Numbers: PPL MB21W, 12-2000
Important Note for Boat, Engine and Generator Parts: The responsibility for the accuracy of your order rests with you, the customer. If you have any question as to whether or not the part you are ordering is the right one for your boat/engine/generator, please do not hesitate to call us immediately at 321-952-1303 Monday-Friday 8-5pm. This is important to save both time and money. Carp Coastal Marine will be responsible for any mistakes that we make. However, if you make the decision without consult from us, then restocking and freight charges will be added to your order.

Brand: Poly Planar

SKU:665-MB21W

UPC:731128002101

POLY PLANAR MB21W 2-1/2  WHITE VHF EXT SPEAKER
POLY PLANAR MB21B COMPACT VHF REMOTE - BLKK
Price: $31.79
Retail price is shown. * Add this item to the Shopping Cart to see your reduced price.

Product Description: Poly-Planar MB21B Waterproof VHF Extension Speakers Surface Mount 8W 2-15/16" x 2-3/4", Black Waterproof VHF extension speaker can be mounted in any convenient location and feature polypropylene speaker cones with stainless steel grills and mounts. Includes a 10' lead wire with mini-plug.
ALT Part Numbers: PPL MB21B, 25-0286
Important Note for Boat, Engine and Generator Parts: The responsibility for the accuracy of your order rests with you, the customer. If you have any question as to whether or not the part you are ordering is the right one for your boat/engine/generator, please do not hesitate to call us immediately at 321-952-1303 Monday-Friday 8-5pm. This is important to save both time and money. Carp Coastal Marine will be responsible for any mistakes that we make. However, if you make the decision without consult from us, then restocking and freight charges will be added to your order.

Brand: Poly Planar

SKU:665-MB21B

UPC:731128002118

POLY PLANAR MB21B COMPACT VHF REMOTE - BLKK
POLY PLANAR MA3030G 4IN GREY BOX SPEAKER 1PR/BX
Price: $144.99
Not In Stock
May be available soon with price change.
Item may be special order or out of stock. Please call 321-952-1303 or Contact Us for price and availability.
Retail price is shown. * Add this item to the Shopping Cart to see your reduced price.

Product Description: Poly-Planar MA3030 Waterproof 3" Component Box Speakers, Grey (Sold as Pair) Completely waterproof, they are easily mounted in either the horizontal or vertical orientation with the supplied bracket.
ALT Part Numbers: PPL MA3030G, 02-9905
Important Note for Boat, Engine and Generator Parts: The responsibility for the accuracy of your order rests with you, the customer. If you have any question as to whether or not the part you are ordering is the right one for your boat/engine/generator, please do not hesitate to call us immediately at 321-952-1303 Monday-Friday 8-5pm. This is important to save both time and money. Carp Coastal Marine will be responsible for any mistakes that we make. However, if you make the decision without consult from us, then restocking and freight charges will be added to your order.

Brand: Poly Planar

SKU:665-MA3030G

UPC:10731128000036

POLY PLANAR MA3030G 4IN GREY BOX SPEAKER    1PR/BX
POLY PLANAR MA4056W 6 WHITE ROUND GRILL SPKRS-80
Price: $100.49
Not In Stock
May be available soon with price change.
Item may be special order or out of stock. Please call 321-952-1303 or Contact Us for price and availability.
Retail price is shown. * Add this item to the Shopping Cart to see your reduced price.

Product Description: Poly-Planar Waterproof 6" 2 Way Coax - Integral Grill Performance Speakers 80W Per Pair, White (Sold as Pair) Coated internal wiring for long life. Polypropylene cones and UV stabilized plastic grills stand up to harsh marine effects. Heavy-duty ABS plastic frames. Low magnetic field does not interfere with compass and autopilot.
ALT Part Numbers: PPL MA4056W, 16-2102
Important Note for Boat, Engine and Generator Parts: The responsibility for the accuracy of your order rests with you, the customer. If you have any question as to whether or not the part you are ordering is the right one for your boat/engine/generator, please do not hesitate to call us immediately at 321-952-1303 Monday-Friday 8-5pm. This is important to save both time and money. Carp Coastal Marine will be responsible for any mistakes that we make. However, if you make the decision without consult from us, then restocking and freight charges will be added to your order.

Brand: Poly Planar

SKU:665-MA4056W

UPC:731128405605

POLY PLANAR MA4056W 6 WHITE ROUND GRILL SPKRS-80
POLY PLANAR WC3 RADIO SPLASH COVER 4 X9 X2
Price: $42.79
Not In Stock
May be available soon with price change.
Item may be special order or out of stock. Please call 321-952-1303 or Contact Us for price and availability.
Retail price is shown. * Add this item to the Shopping Cart to see your reduced price.

Product Description: Poly-Planar WC3 Radio Splash Cover Protect your stereo from the harsh marine environment. Gasketed covers are designed to keep moisture away from your stereo. Panel mount accommodate dual post, removable and DIN-style stereos.
ALT Part Numbers: PPL WC3, 16-3102
Important Note for Boat, Engine and Generator Parts: The responsibility for the accuracy of your order rests with you, the customer. If you have any question as to whether or not the part you are ordering is the right one for your boat/engine/generator, please do not hesitate to call us immediately at 321-952-1303 Monday-Friday 8-5pm. This is important to save both time and money. Carp Coastal Marine will be responsible for any mistakes that we make. However, if you make the decision without consult from us, then restocking and freight charges will be added to your order.

Brand: Poly Planar

SKU:665-WC3

UPC:731128000305

POLY PLANAR WC3 RADIO SPLASH COVER 4 X9 X2
POLY PLANAR RM10 OVERHEAD/UNDER RADIO MOUNT
Price: $24.99
Retail price is shown. * Add this item to the Shopping Cart to see your reduced price.

Product Description: Poly-Planar RM10 Overhead Radio Mount Designed to accommodate today's larger front panel format marine radios as well as older DIN style and post mount. Made from heavy wall ABS plastic. It has room for all the accessory cables found on the newest radios. Can be installed overhead or under dash. Mounting hardware included. Accepts PolyPlanar and most other brands of stereos, including Sony, Jensen and more.
ALT Part Numbers: PPL RM10, 08-8924
Important Note for Boat, Engine and Generator Parts: The responsibility for the accuracy of your order rests with you, the customer. If you have any question as to whether or not the part you are ordering is the right one for your boat/engine/generator, please do not hesitate to call us immediately at 321-952-1303 Monday-Friday 8-5pm. This is important to save both time and money. Carp Coastal Marine will be responsible for any mistakes that we make. However, if you make the decision without consult from us, then restocking and freight charges will be added to your order.

Brand: Poly Planar

SKU:665-RM10

UPC:731128040103

POLY PLANAR RM10 OVERHEAD/UNDER RADIO MOUNT
POLY PLANAR MA-840B COMPACT BOX SPEAKERS
Price: $94.16
Not In Stock
May be available soon with price change.
Item may be special order or out of stock. Please call 321-952-1303 or Contact Us for price and availability.
Product Description:
ALT Part Numbers: PPL MA840B, 24-2282
Important Note for Boat, Engine and Generator Parts: The responsibility for the accuracy of your order rests with you, the customer. If you have any question as to whether or not the part you are ordering is the right one for your boat/engine/generator, please do not hesitate to call us immediately at 321-952-1303 Monday-Friday 8-5pm. This is important to save both time and money. Carp Coastal Marine will be responsible for any mistakes that we make. However, if you make the decision without consult from us, then restocking and freight charges will be added to your order.

Brand: Poly Planar

SKU:665-MA840B

UPC:731128084015

POLY PLANAR MA-840B COMPACT BOX SPEAKERS
POLY PLANAR MA-9060B POLY-PLANAR SPEAKER
Price: $324.74
Not In Stock
May be available soon with price change.
Item may be special order or out of stock. Please call 321-952-1303 or Contact Us for price and availability.
Product Description:
ALT Part Numbers: PPL MA9060B, 41-7297
Important Note for Boat, Engine and Generator Parts: The responsibility for the accuracy of your order rests with you, the customer. If you have any question as to whether or not the part you are ordering is the right one for your boat/engine/generator, please do not hesitate to call us immediately at 321-952-1303 Monday-Friday 8-5pm. This is important to save both time and money. Carp Coastal Marine will be responsible for any mistakes that we make. However, if you make the decision without consult from us, then restocking and freight charges will be added to your order.

Brand: Poly Planar

SKU:665-MA9060B

UPC:731128906010

POLY PLANAR MA-9060B POLY-PLANAR SPEAKER