841812 For Volvo Penta AD31 AD41 AQAD30 AQAD40 AQAD41 Double Alternator Pulley

Double Alternator Pulley for Volvo Penta

This double alternator pulley for Volvo Penta is a replacement part that allows dual alternators to be driven from a single belt, increasing charging capacity for engines like AD31, AD41, AQAD30, AQAD40, and AQAD41, with OEM part number 841812.

Overview

The double alternator pulley for Volvo Penta is a precision-machined component designed to mount two alternators for enhanced electrical output. This alternator pulley for Volvo Penta ensures reliable belt alignment and reduces belt wear. It is an essential upgrade for marine engines that need additional power for electronics and battery charging.

Built For Performance

• Machined from high-grade steel for durability
• Precision-balanced to minimize vibration
• Dual-groove design for secure belt grip
• Corrosion-resistant coating for marine environments
• Direct replacement for original Volvo Penta part 841812

Fits These Machines

• for Volvo Penta AD31
• for Volvo Penta AD41
• for Volvo Penta AQAD30
• for Volvo Penta AQAD40
• for Volvo Penta AQAD41

On-The-Job Use

• Upgrading a single-alternator system to dual alternators
• Replacing a worn or damaged pulley on a marine diesel engine
• Improving charging output for heavy electrical loads
• Maintaining proper belt tension in a twin-alternator setup

Specs At A Glance

Good To Know

Q: What is a double alternator pulley? A: It is a pulley with two grooves that allows one belt to drive two alternators simultaneously.

Q: Will this fit my Volvo Penta engine? A: It is designed for the listed models, but please verify your engine serial number for compatibility.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.