More than ever, boaters need a single comprehensive reference that combines the best traditions of seamanship with cutting-edge practices, gear, and technology. That's why, for nearly a century, Chapman Piloting & Seamanship has remained the most respected and widely used guide for boating under pow...

Sierra fuel water separators remove over 99.8% of emulsified water from your gasoline. Sierra's 10 micron filters are over 90% efficient at removing particles as small as 10 microns. All filters flow @ 90 GPH to feed even the hungriest motor. Sierra 10 micron filters are recommended to prevent damag...

The AMPRO T33338 3/8-Inch drive by 5/8-Inch extendable flex spark plug socket has been constructed of chrome vanadium steel. This socket features a mirror chrome finish and has a magnet. It is 13 1/2-Inch long.

Magnetic shafts hold fasteners securely to free up your hands in tight spaces. Sizes: 5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm Quick release 1/4" hex shanks Lobular drive prevents rounding by putting torque on the sides, not the corners Overall length: 2"

The DEWALT DCK296M2 20V XR Lithium Ion Premium Brushless Hammer/Impact Combo (4.0Ah) features a DEWALT-built brushless motor that delivers up to 57% more run time over brushed. The XR Li-Ion batteries with fuel gauge provide 33% more capacity over standard packs. The DCD995 20V MAX1/2" hammerdrill f...

The Precision Brand B-H series partial stainless steel worm gear clamp has a stainless steel band and housing, a plated steel screw, and is for general purpose use. The band’s edges are rounded to help prevent hose damage. A worm gear mechanism adjusts the clamp’s diameter to precisely apply sealing...

The LENOX Tools Bi-Metal Speed Slot Hole Saw with T3, 1-1/8"-29mm, has enhanced tooth geometry that cuts 50% faster than previous LENOX hole saws. Twice as durable as our previous generation when cutting through metal, this bi-metal hole saw features thicker walls to minimize tooth loss and improve...

SX9510-80SX9510-80 Smart Tabs SX Series Trim TabsSmart Tabs SX Series for boats 16 - 20 ft with 150 - 225 hp motors.Smart Tabs SX Series from Nauticus, Inc.IMPROVES YOUR BOAT'S OVERALL PERFORMANCE - GUARANTEED!!!If these trim tabs don't provide you with an outstanding performance increase, contact u...

Sierra International 18-5227-1 Premium MagForce 9"" Marine Spark Plug Wire Lead for Mercury/Mariner Outboard Engines Sierra’s MagForce Ignition Wires are “Electronics Friendly” protecting all of your electronic devices and electronic engine controls from Radio Frequency Interference (RFI) and El...

The Precision Brand B-H series partial stainless steel worm gear clamp has a stainless steel band and housing, a plated steel screw, and is for general purpose use. The band’s edges are rounded to help prevent hose damage. A worm gear mechanism adjusts the clamp’s diameter to precisely apply sealing...

The best protection available against expensive stern drive theft. Simply replace one of the stern drive mounting nuts with a McGard lock. These stern drive locks are fully machined from high quality stainless steel and are through-hardened. This proven design features a free-spinning collar that tu...

Water Pump Kit with Housing for OMC Stringer Stern Drives 1962-1986! Replaces OMC 983218. Fits 100 - 260 sterndrives from 1962 to 1986. (Does not fit Cobra sterndrives). There are some late 1960's models that took a water pump housing that is slightly smaller in diameter. These are rare -- b...