Alternators

Premium Replacement Alternator with 50mm Multi-Groove PulleyReplacement alternator that will fit Mercruiser 4.3L-6.2L, 12 Volt, 70 AMP, Internal Fan, 50-mm multi-groove serpentine pulley included.Features:All alternators are engineered for performance...

621 Series 120A Kit with MC-618 Regulator, T-Sensor, K6 Pulley, Single Foot & Mounting HardwareKit Includes:621-120-K6 AlternatorMC-618 RegulatorTemperature SensorsMounting Hardware621-120-K6 Alternator: 120A, 12V, Spindle Mount (Single Foot),...

Temp Sensor Battery - 30'Temperature Sensor, Battery - 30' LengthThis 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...

Belt Buddy with Universal Offset Adjustment Arm (UAA2)Belt Buddy Kit; Includes the Universal Adjustment Arm (UAA2) with a 1/2" offset for mounting applications which require an offset to the alternator and Belt Buddy Mechanism (BB).To utilize only the...

Temperature Sensor Alternator - 80" LengthIntended for longer runs when the standard 54" Alternator Temp Sensor (PN: MC-TS-A) is insufficient.This product may not be returned to the original point of purchase. Please contact the manufacturer directly...

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...

Alternator Temperature SensorWhen using the Alpha Pro in combination with non-Mastervolt alternators, this alternator temperature sensor may offer additional protection against over heating.

170AMP, 12V, 1-2" Single Foot, K6 Pulley with Internal Regulator & Isolated Grounding1″ Motorola-Style Mounting;  Typical for Westerbeke, Lehman, Hino & Pathfinder Engines2″ Delco-Style Mounting;  Typical for Volvo Penta...

Universal Adjustment Arm - OffsetUniversal Adjustment Arm for the Belt Buddy with a 1/2″ offset for certain mounting applications which require an offset. This part number is for the “Arm Only”, It does not come with the Belt Buddy...

Alternator 120 Amp 12V 1-2" Single Foot Single K6 Pulley with Isolated GroundingAlternator, 621 Series, 120A, 12V, Spindle Mount (Single Foot), 1-2in, K6 Serpentine Pulley, Isolated Ground 1″ Motorola-Style Mounting;  Typical for Westerbeke,...

Alternator 120 Amp 12V 3.15" Dual foot Saddle Single K6 Pulley with Isolated GroundingAlternator, 60 Series, 120A, 12V, Saddle Mount (Dual Foot), 3.15in, K6 Serpentine Pulley, Isolated Ground Hitachi-Style Mounting; Typical for Yanmar, Westerbeke,...

Alternator 170 Amp, 12V Single Foot Internal Regulator K6 PulleyAlternator, XT Series, 170A, 12V, Spindle Mount (Single Foot), 1-2in, K6 Serpentine Pulley, Case Ground1″ Motorola-Style Mounting;  Typical for Westerbeke, Lehman, Hino &...