Johnson Pump Impeller Kit 09-821B – Fits Volvo Penta D6 Series Diesel Engines (Replaces 21951358, 876771, 3887761) 340HP 4L (Big Block) 330–370 4-Stroke

4L (Big Block) 330–370 4-Stroke 1986–Present 93322A12 For wet joint systems Mercruiser 8

Apply a suitable marine-grade thread sealant to the threads of the new sensor

For Crusader engines

Remove the old gasket and clean all mating surfaces of residue

or flat spots

Johnson Pump Impeller Kit 09-821B – Fits Volvo Penta D6 Series Diesel Engines (Replaces 21951358, 876771, 3887761) 340HP 4L (Big Block) 330–370 4-StrokeProduct Details This is a direct replacement flexible **Johnson Pump Impeller Kit 09 821B**, designed for reliable performance in various marine diesel engines. It is fully compatible with Volvo Penta D6 series engines (280435 HP, 2003present) and Yanmar 6LY and 6LYA series engines (300400 HP, all years). This kit serves as a direct interchange for numerous OEM and aftermarket part numbers, including Volvo Penta 21951358, Yanmar 119574 42550, and