Zinc Pencil Anode – Fits Volvo Penta D19 D21 D27 D29 D30 D31 D32 D40 D41 D42 2001 2002 2003 (Replaces 838929, 804107, 800476) Force then remove the lower unit

then remove the lower unit (gearcase) mounting bolts and carefully separate it from the upper section

covering a wide range of models primarily from 1970–1991

Replacement is typically needed only when the unit is physically damaged

or visible corrosion and damage to the fitting itself

Zinc Pencil Anode – Fits Volvo Penta D19 D21 D27 D29 D30 D31 D32 D40 D41 D42 2001 2002 2003 (Replaces 838929, 804107, 800476) Force then remove the lower unitProduct Details This Zinc Pencil Anode is designed for Volvo Penta marine diesel engines, providing essential corrosion protection for critical components including oil coolers, intercoolers, and cylinder heads. Compatible with D series models (D19, D21, D27, D29, D30, D31, D32, D40, D41, D42) and 2000 series engines (2001, 2002, 2003), this pencil rod anode ensures reliable galvanic protection in saltwater and brackish environments. This aftermarket