Engine Parts & Service - Alternators

Temp Sensor Battery - 20'Temperature Sensor, Battery - 20' LengthThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

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Zeus A225OB-12V High Output Outboard Alternator Engineered KitKit includes everything needed for Verado applications: alternator, alternator positive fuse link wire, alternator ground wire, battery sense wire, and OEM replacement alternator belt.The ARCO Zeus A225ob-12V is a 225-amp, 3,500-watt high-output outboard alternator delivering 2 to 3x faster charge times compared to OEM units. It is part of the ARCO Zeus High Energy product family, engineered for boaters who need a complete onboard power upgrade, not just a component swap.Features: 225 amps and 3,500 watts of charging capability with 2 to 3x faster charge times vs OEM units Engineered to help recharge large lithium banks at significantly faster rates than typical OEM alternators Built to support stabilizers, inverters, air conditioning, refrigeration, trolling motors, water and ice makers, and premium audio Batteries continue charging even at low engine speeds, including idle, so power is available when and where you need it Enables efficient charging without a dedicated engine or generator runtime Brochure (pdf)

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Zeus 24V 4kW Low Turn On (LTO) J180 4" Alternator with Isolated GroundThe ARCO Zeus 24v 4kW LTO alternator turns on at lower RPMs, runs cooler, and provides more power than older designs that are larger and heavier. This alternator continuously generates over 1.4kW (51 Amps) at just under 1,500 RPM and almost 2.4kW (87 Amps) at 2,000 Alternator RPM. Put in real-world terms, a marine diesel engine idling at 750 RPM with a 2:1 pulley ratio is generating over 1.5kW (55 Amps), and a Mercedes Sprinter at 750 RPM with a 3.21:1 ratio is generating over 2.5kW (91 Amps)!The ARCO Zeus 24v 4kW alternator turns on at lower RPMs, runs cooler, and provides more power than older designs that are larger and heavier. The newest generation of 24V performance has arrived.Competitor’s 24V alternators utilize a 12V rotor and field current which is less efficient and limits output at all RPMs. ARCO utilizes a native 24V rotor and field current. This results in our 24V alternator running cooler than competitor’s 24V alternators, having a direct impact on the alternator lifespan.Features: Engineered for high energy production. Suitable for marine, RV, military, and commercial applications. Rapidly charges large battery banks. Coolest operating temperatures for increased performance: Heat shedding coatings Rectifier located on housing exterior Dual cooling fans OEM components Optimized for performance at cruising speeds. Reduces the need for a generator by creating additional power with your engine. Unleash peak performance with E-Coat/Cerakote, keeping the high amp alternator cooler for sustained amperage output. For maximum performance or lithium battery charging, use the ARCO Zeus Bluetooth Alternator Regulator. SAE J1171 Certified. Proudly made in the U.S.A. Technical Specifications: Voltage - 24v Field Type - P Rotor Poles - 16 Stator Size - 138mm Frame Size - Large Weight - 15.89lbs/7.2kg Regulation - External Only Finish - (Black) E-coating Cut-In RPM - 1,072 Alternator RPM Maximum Alt RPM - 19,000 Battery Post - M8 Thread Post, Side Mount Standard Pulley - 49K6 (6-groove, 49mm) Pulley Mount - 17mm diameter shaft, 25mm long, threaded M17 x 1.5 Pulley Hardware - M17 x 1.5 x 24mm nut, w/ 18mm ID x 29mm OD washer (Included) Diodes - 6 positive, 6 negative, 50A Rated, Avalanche Max Output (Cold, 9,000 RPM) at 27.5v - 144 Amps - 3,960 Watts – 5.7Kw PTO Sustained Cruising Output (Hot, 6,000 RPM) at 27.5v - 130 Amps - 3,575 Watts – 5.1Kw PTO Sustained Idle Output (Hot, 3,000 RPM) at 27.5v - 108 Amps - 2,970 Watts – 4.2kW PTO Max Continuous Operating Temperature - 100°C / 212°F Mounting Application:Replaces most Volvo Penta alternators using a 4” J180 saddle-style mount. Quick Guide (pdf)Brochure (pdf)

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Max Charge MC618 Multi-Stage Regulator without Harness - 12VBalmar's MC-618 Regulator communicates with the SG200 Battery Monitor to provide information to the SG200 Color Display and Smartphone App.  Now you can see how the MC-618 Regulator is directing your onboard charging activity from either the SG200 2" Color Display and/or the optional Bluetooth Smartphone App.  Basic setup functions can be accomplished from the SG200 Color Display, Smartphone App, or the traditional on-regulator programming tool.  Advanced Programming functions are available from the Bluetooth Smartphone App.  Balmar customers have been asking for years to view regulator information from outside the engine compartment.  Balmar has accomplished this goal without the need for a separate dedicated display device!This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

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Alternator Vortec K6 Serpentine Pulley Regulator & Temp Sensor - 170A - 12VBalmar offers a wide range of alternator power upgrades designed specifically for marine industry applications. Balmar installs high reliability bearings, robust rectifier diodes and improved heat-sinking capabilities on all our alternators to ensure improved system reliability combined with increased charging power.Features: Vortec K6 Serpentine Pulley Regulator & Temp Sensor 170A Kit 12V This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Specifications: Voltage: 12v Amperage: 170A Box Dimensions: 11"H x 11"W x 14"L WT: 17.25 lbs UPC: 676205500883 Brochure (pdf)

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Alternator Protection Module APM12 - 12VAlternators can be subjected to voltage spikes caused by lithium battery shutdowns, intermittent connections, and other over-voltage events.  Balmar has introduced a robust Alternator Protection Module which helps to protect the alternator’s diodes and internal voltage regulator against spikes (clamping up to 60V) and sustained over-voltage conditions (beginning around 20V for the 12V version).  The APM can absorb multiple surges of such energy and can absorb surges in excess of 200 amps without failure to continually protect your alternator.  Visual and audible alarms indicate if the device has been compromised and needs replacement.Balmar APM devices provide intelligent, robust, solid-state protection in a small easily mounted package at the rear of the alternator between the B+ and B- terminals.  Balmar APM devices can be used to protect all alternator brands.  Balmar APM devices meet ISO 16750-2 for Load Dump Protection and ISO 7637-2 for Surge Protection.This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

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Max Charge MC-618 Regulator 12V with Harness Multi-StageThe MC-618-H premium 12-volt multi-stage voltage regulator provides the ultimate in charging safety and control. Includes wiring harness. Features: Intelligent multi-stage regulation. Digital numeric LED display. Epoxy-encapsulated circuitry. For use with 12 volt systems Wiring harness included Can be used to drive twin alternator installations. For use with P-type externally regulated alternators Dash lamp and auxiliary lamp terminals Small engine mode Magnetic programming tool included LiFePo4 (lithium) program Optional alternator and battery temperature sensors sold separately This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

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Alternator 170 AMP 12V 4" Dual Foot Saddle K6 PulleyBalmar offers a wide range of alternator power upgrades designed specifically for marine industry applications. They install high-reliability bearings, robust rectifier diodes, and improved heat-sinking capabilities on all their alternators to ensure improved system reliability combined with increased charging power.Features: 4" Dual-Foot K6 Serpentine Pulley 170A 12V Case Ground J-180 Mount; Typical for John Deere, Cummins, & Caterpillar Engines This product may not be returned to the original point of purchase.  Please contact the manufacturer directly with any issues or concerns.This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Specifications: Amperage: 170A Voltage: 12v Box Dimensions: 9"H x 9"W x 10"L WT: 15 lbs UPC: 676205503464 Brochure (pdf)

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Alternator 120 AMP 12V 3.15" Dual Foot Saddle Dual Pulley with Isolated GroundAlternator, 60 Series, 120A, 12V, Saddle Mount (Dual Foot), 3.15in, Dual Deep Vee Pulley, Isolated Ground Hitachi-Style Mounting; Typical for Yanmar, Westerbeke, Lehman & Perkins-Sabre EnginesReplaces: 60-120-SR-IGThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Specifications: Amperage: 120A Voltage: 12v Box Dimensions: 9"H x 10"W x 10"L WT: 13.65 lbs UPC: 676205131025 Brochure (pdf)

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Alternator 1-2" Single Foot K6 Serpentine Pulley - 170A - 12VBalmar offers a wide range of alternator power upgrades designed specifically for marine industry applications. Balmar installs high reliability bearings, robust rectifier diodes and improved heat-sinking capabilities on all our alternators to ensure improved system reliability combined with increased charging power.Features: 1-2" Single Foot K6 Serpentine Pulley 170A 12V This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Specifications: Voltage: 12v Amperage: 170A Box Dimensions: 9"H x 10"W x 10"L WT: 14.45 lbs UPC: 676205500852 Brochure (pdf)

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Premium Replacement Alternator with Single Groove Pulley - 12V, 55APremium replacement alternator that will fit late model Mercruiser, 12 Volt, 55 Amp, Internal regulator. 2-inch mounting foot. Single groove pulley included.Features: All alternators are engineered for performance and reliability All alternators are engineered and manufactured with precision and quality All alternators must meet or exceed OEM performance before being boxed Warranty Information:When properly installed, all ARCO products are warrantied against defects in materials and workmanship for a period of 12 months for leisure use and 90 days for commercial or racing applications. Add an extra year of warranty to your rotating electric ARCO product (Tilt/Trim Motors, Alternators, Outboard Starters, and Inboard Starters) when you register your product within 30 days of purchase. You can register your product by visiting arcomarine.com/product-registration Replaces:MARINE POWER Alternator 1210-000MERCURY Alternator 12449MERCURY Alternator 78403A1MERCURY Alternator 78403A2MERCURY Alternator 817119A1MERCURY Alternator 817119A4MERCURY Alternator 92497A3MERCURY Alternator 98555MERCURY Alternator 98555A1SIERRA Alternator 18-5957SIERRA Alternator 18-5966This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Specifications: Amperage: 55A Voltage: 12v Box Dimensions: 7"H x 8"W x 8"L WT: 9.75 lbs UPC: 693006001258 Quick Guide (pdf)

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Alternator 100 AMP Kit 12V 1-2" Single Foot Spindle Mount K6 Pulley Regulator & Temp SensorKit Includes: 621-100-K6 Alternator, MC-618 Regulator, Temperature Sensors, Mounting Hardware621-100-K6 Alternator: 100A, 12V, Spindle Mount (Single Foot), 1-2in, K6 Serpentine Pulley, Isolated Ground1" Motorola-Style Mounting;  Typical for Westerbeke, Lehman, Hino & Pathfinder Engines2" Delco-Style Mounting;  Typical for Volvo Penta (Gas & Diesel), John Deere, Perkins, Mercruiser, Pleasurecraft, Crusader, Indmar, Marine Power & other GM-based EnginesReplaces: 621-VUP-MC-100-SR-KITThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Specifications: Amperage: 100A Voltage: 12v Box Dimensions: 11"H x 11"W x 15"L WT: 16.3 lbs UPC: 676205750943 Brochure (pdf)

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