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Sierra Marine alternators are designed to OEM specifications. All models meet or exceed USCG and SAE J1171 safety requirements and are 100 percent load-tested for assured reliability. Order the replacement alternator recommended for your watercraft application.
Not Yet Reviewed
$758.99
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$799.99
Sierra Marine alternator conversion kits will allow you to convert an aluminum block Merc engine with stator charging system and water-cooled voltage regulator to alternator system. Kits include new alternator, mounting brackets, pulley, wiring, hardware, and instructions. Sierra provides premium-quality aftermarket replacements for over 6,000 marine parts, tools, and components. Sierra Marine products are engineered to meet or exceed OEM standards and stand up in harsh marine environments. Note: Fuse kit P/N:18-8220 (sold separately) is required on engines with a Delco starter. Prestolite starters with remote solenoid do not require fuse kit.
Not Yet Reviewed
$896.99
MSD Pro-Billet Ready-to-Run marine distributors are the perfect upgrade for boats that are relying on worn-out breaker points or weak ignition systems. These distributors feature a powerful ignition module built into the billet aluminum housing. That means no extra ignition box is needed! This module produces a stout inductive spark that will improve combustion of the fuel mixture for better drivability. Beneath the durable bolt-down injection-molded cap, a maintenance-free magnetic pickup produces accurate trigger signals, while an oversized shaft is guided by a sealed ball bearing. An easy-to-adjust mechanical advance allows you to custom-tailor a timing curve to match your application. Their Ready-to-Run design makes installation a breeze. Simply drop one in the engine, connect three wires—and you're ready-to-run across the lake! All distributors are equipped with flame arrestor holes in their CNC-machined aluminum housings, and are supplied with a cap, rotor, gear, and weathertight wiring harness.
( 16 )
$799.95
Replace your watercraft's OE distributor with a Sierra Marine YLM Series model. These are modern, high performance magnetic breaker-less upgrades. Their complete, self-contained ignition system combines the triggering device and amplifier into a single unit that sits inside the distributor housing. The self-contained module/pickup assembly has no moving parts to wear out, making YLM superior to many other designs. Their time-tested breaker-less ignition circuit and surface-mounted, thermal-clad construction provide reliability in harsh marine environments. Designed for 12 V negative-ground systems, YLM distributors improve combustion efficiency and spark plug life, provide accurate timing, and have a simple wiring hookup for easy installation. They're designed to work with both OE and aftermarket coils, so you're sure to find the combination you need. Order the model recommended for your marine make and engine application.
( 1 )
$771.99
Odyssey extreme marine batteries are like an athlete that is both a sprinter and a long distance runner! The dual-purpose batteries have massive starting power, along with amazing deep cycling capability—up to 400 cycles at 80 percent depth of discharge. With twice the overall power and 3x the life of conventional marine batteries, the Odyssey extreme is ideal for trolling, starting, and for powering the many on-board electronic accessories common in today's boats and recreational vehicles.
( 1 )
$977.99
Sierra offers portable lithium batteries for powering a powered cooler and other 12-volt appliances while being off-grid. The battery is lightweight, with a weatherproof interface and feature an ergonomically designed stainless steel handle, so you can effortlessly take it to any remote location. The integrated DC-DC charger offers three ways to charge a vehicle: 12V DC socket, solar panel or AC home power. Integrated LCD display provides battery capacity, charging and discharging status and output status. Enjoy true independence while off-grid by using Sierra's portable lithium batteries.
Not Yet Reviewed
$849.99
The legacy continues … and now it is bigger, better, and faster! Built for enthusiasts and professionals, MPV13 is the fastest most sophisticated OBDII interface device to date, and Pro is the new standard. Take advantage of Pro Feature Set capabilities, like standalone data logging and PROLINK+ compatibility (sold separately) already built in. MPVI3 redefines the limits of speed and control with faster standalone data logging and two times the storage capacity compared to the previous generation. Log more runs (faster) and store more calibrations on your MPVI3, all with the convenience of eliminating your laptop from the equation. HP Tuners VCM Suite MPVI3 Credit Pro packages equip you with the most inclusive scanning, logging, and calibration, making them the only tool you need in your toolbox. The MPVI3 connects your vehicle's control modules to HP Tuners' VCM Suite software. You can run complete diagnostics, monitor vehicle performance, read from various vehicle control modules, and more in VCM Suite. Optimize your performance, fuel economy, or whatever your vehicle goals may be in VCM Editor with a multitude of defined parameters. When you are ready, license and tune any vehicle currently supported by HP Tuners with the fastest read and write speeds available. Connect, read, edit, write, drive; HP Tuners VCM Suite MPVI3 Credit Pro packages are offered with or without tuning credits.
( 1 )
$799.91
HP Tuners Introduces VCM Suite MPVI4 Credit Pro packages, the latest evolution of their industry-leading OBDII interface. Built for professionals and enthusiasts alike, the computer programmers connect your vehicle to VCM Suite software (5.2+) for faster, smarter, and more powerful tuning and diagnostics than ever before. With upgraded hardware, expanded connectivity, and future-ready Wi-Fi capabilities, the MPVI4 redefines what's possible in performance calibration and data acquisition. Models are available with 0, 2, 4, 6, or 8 credits. HP Tuners VCM Suite MPVI4 Credit Pro packages feature: * Improved standalone logging: the most powerful device yet, capable of delivering standalone logging performance on par with VCM scanner and a wired connection * Upgraded hardware architecture: New internal processor for improved data throughput and flashing performance; 30x more memory than previous generation MPVI3 * High-speed USB-C connectivity: Faster, more reliable communication with your PC and vehicle * Bluetooth 5.2: Seamless wireless connection for scanning, logging, and TDN support * Wi-Fi ready (future update): Wireless VCM Suite connectivity coming soon * Enhanced storage and efficiency: Increased onboard memory for robust logging sessions * Improved OBDII fitment: A revised, tapered design means a more secure connection and better compatibility with even more makes/models * Built-In Pro feature set: Standard on every MPVI4, enabling standalone data logging and external sensor integration with PROLINK+ * RGB status LEDs: Clear visual indicators for power, connection, and activity status * Cross-Platform Compatibility: Works with VCM Suite (5.2+), TrackAddict, and RaceRender
Not Yet Reviewed
$799.91
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