Aftermarket Volvo Penta 3840181 Alternator Aftermarket Volvo Penta 3840181 Alternator Replaces Volvo Penta part number: 3803911, 3840181 12 Volt, 115 amp, 51mm diameter pulley, 6 rib pulley Suits Volvo Penta engines: D4-180, D4-210, D4-225, D4-260, D4-300 D6-280, D6-310, D6-330, D6-350, D6-370,... MSRP: Was: Now: $760.00 Add to Cart