Shopping from Canada? 
Go to Defender Canada!
Promotions
-
8% offFusion Apollo Amplifier Power & Remote On Connector - 010-12964-00
$36.79 -
T-H Marine Aerator Filter Dome
$10.01 - $12.78 -
Up to 10% offT-H Marine Directional Flow Aerator Head
$10.79 - $16.23 -
T-H Marine Straight Head Aerator Spray Head Black - 3/4" - AHV-1-DP
$14.87 -
10% offShakespeare AM/FM Antenna - 24" - 4353
$38.69 -
8% offFusion SXV300B Sirius Receiver - 010-12773-00
$119.59 -
10% off
Boss Audio 2-Way Coaxial Marine Loudspeaker with Multi-Color Illumination Options
$94.49 - $104.99 -
Boss Audio Systems MR50W 2-Way Marine Speakers
$37.99 -
10% offBoss Audio Systems MR60W 2-Way Marine Speakers
$45.89 -
10% offBoss Audio Systems 2-Way Marine Speakers - 6" x 9" - MR690
$93.59 -
8% offBoss Audio Systems AM/FM Bluetooth Marine Stereo Receiver - MR1308UAB
$70.83 -
10% offBoss Audio Systems Marine Stereo Antenna - MRANT12
$13.49 -
8% offJL Audio Marine Lighting Controller - 010-13428-00
$303.59 -
10% offJL Audio Motorola Style AM/FM Antenna - 010-13555-00
$29.69 -
8% offJL Audio Panel Mounting USB Port - 010-13563-00
$54.27 -
8% offJL Audio USB-C and USB-A Charging Jack - 010-13623-00
$97.51 -
8% offJL Audio SiriusXM to Stereo Aux Connector - 010-13857-00
$29.43 -
6% offJL Audio 2-Channel Marine Audio Y-Adaptor
$17.76 -
Up to 9% offJL Audio Core Audio Interconnect Splitter
$16.99 - $22.99 -
Up to 8% offJL Audio Resettable Circuit Breaker
$102.11 - $111.31 -
8% offJL Audio Core Barrel Connectors (2-Pack) - 010-13651-00
$7.01 -
8% offJL Audio Master ANL Fuse Block - 010-13727-00
$52.43 -
8% offJL Audio Side-Post to Top-Mount Battery Terminal Adapters (2-Pack) - 010-13729-00
$16.44 -
Up to 8% offJL Audio Core Audio Interconnect Cables
$13.74 - $32.19 -
Up to 8% offJL Audio Crimpable Ring Terminals (4-Pack)
$16.08 - $26.67 -
19% offBoss Audio Marine Gauge Digital Media AM/FM Receiver - MGR300B
$152.99 -
10% offFusion Signature Series 3i Marine LED Wake Tower Sports Speakers - 6.5"
$374.39 -
Up to 7% offFusion Sound-Panel Mounting Spacer
$16.22 - $26.99 -
8% offFusion Panel-Stereo Accessory Mounting Spacer - 010-12753-00
$34.03 -
T-H Marine Automatic Aerator Control - AAC-1-DP
$123.99 -
SHURflo Pentek CC-10 Coconut Shell Cartridge - 155155-43
$19.78 -
General Ecology Nature Pure QC2 Basic Pure Water Filter System - 420630
$465.99 -
8% offJL Audio 2-Channel Mini to RCA Audio Interconnect Cable - 6' - 010-13458-00
$32.19 -
8% offJL Audio Digital Preset Controller - 010-13551-00
$118.67 -
8% offJL Audio MediaMaster 2-Way Y-Adaptor - 010-13854-00
$32.19 -
8% offJL Audio Rotary DRC Adaptor - 010-13865-00
$141.67 -
Up to 8% offJL Audio Cable for Non-NMEA 2000 Remote Controllers
$32.19 - $53.35 -
Up to 8% offJL Audio NMEA 2000 MediaMaster Powered Network Cable
$49.67 - $67.15 -
8% offJL Audio MediaMaster Mounting Adaptor Plate
$93.83 -
Up to 8% offJL Audio Maxi Fuse
$5.12 - $7.58 -
8% offJL Audio 4-Channel Load Sensing Adaptor for FiX OEM Integration DSP - 010-13540-00
$43.23 -
8% offJL Audio Amplifier Stacking Hardware Kit for HD & MHD Amplifiers - 010-13542-00
$37.71 -
8% offJL Audio Dual USB Port Audio Connector for Panel-Mounting - 010-13678-00
$67.15 -
8% offJL Audio Heavy-Duty USB 2.0 Cable - 010-13486-00
$33.11 -
8% offJL Audio MAX Probe Kit - 010-03202-00
$390.07 -
8% offJL Audio MediaMaster MM55 Dash Kit for Polaris RZR- 010-13849-00
$56.11 -
8% offJL Audio Splitter Cable - 010-13846-00
$46.91 -
8% offJL Audio Tweeter Pods (2-Pack) - 1" - 010-13624-00
$184.91