Mastervolt Alpha Compact 14/140 Volvo Penta incl. Alpha Pro III Charge Regulator - 46614142

Mastervolt 46614142 - Alpha Compact 14/140 Alternator for Volvo Penta + Alpha Pro III (12V, 140A)

The Alpha Compact 14/140 VP alternator (46614142) is a compact, high-efficiency 12V alternator designed specifically for Volvo Penta marine engines. Pre-bundled with the Alpha Pro III digital charge regulator, this system provides fast, intelligent multi-stage battery charging in both new installations and retrofits.

Delivering up to 140 A at 6000 RPM and 70 A at 1800 RPM, this alternator is engineered to charge large service battery banks—including Lithium Ion, AGM, Gel, and flooded batteries—even at low engine speeds. An integrated temperature sensor and the advanced Alpha Pro III ensure charging is always safe, optimized, and battery-specific.

Its open-frame design with dual internal fans improves thermal regulation, allowing safe operation in tight, high-temperature engine spaces. Compared to conventional alternators, the Alpha Compact is up to 40% lighter and 25% smaller, with 30% lower fuel consumption due to high efficiency and reduced mechanical drag.

Key Features:

• Complete plug-and-play system with Alpha Pro III regulator included
• Optimized for Volvo Penta engines (direct-fit mount)
• High idle charge output – 70 A at 1800 RPM
• Fully compatible with Lithium Ion, AGM, Gel, and Wet Cell batteries
• Dual internal fan cooling – no external fan belt needed
• Integrated temperature sensor (RJ12 interface)
• Magnetically optimized, open design – lighter and more efficient
• Engineered for high ambient temperature environments
• Protected from oil, dust, and vibration
• OE quality – 2-year full warranty

Technical Specifications:

Electrical Connections:

• Positive Output: Dual M8 studs
• RPM Signal: Isolated W-terminal (Fast-on)
• Field Connection: Mastervolt plug
• Temperature Sensor: Integrated, RJ12 interface

Included Components:

• Alpha Compact 14/140 VP Alternator (Volvo Penta fit)
• Alpha Pro III Charge Regulator

This Mastervolt alternator kit is ideal for engine rooms where high charge output, compact size, and installation simplicity are top priorities. Paired with the Alpha Pro III regulator, it forms a complete high-performance charging system ready for modern energy storage demands.