833913 Zinc Anode | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta sacrificial zinc nut anode that screws onto the propeller shaft nut, listed for a 30 mm shaft with a 3/4 inch Whitworth thread. It weighs 0.29 kg and is listed for 218 applications across MD, MB, TMD, AQ, AD and AQAD series engines. Thread is the thing to check here: 873412 is also a 30 mm shaft anode but takes an M20 metric thread, and the 35 mm anode 833915 weighs 0.288 kg - only 2 grams less than this one - so weight separates nothing in this family.

🚤 Compatibility

• Engine Family: MD, MB, TMD, AQ, AD, AQAD, D, BB, TAMD, MS, DP, SP, HS, AQD, KAD, KAMD
• HP Range: 13-75 HP

Full model list at the end of this description.

⚙️ Key Features

• For a 30 mm propeller shaft
• 3/4 inch Whitworth thread
• Screws onto the propeller shaft nut
• 0.29 kg
• The metric M20 anode for the same 30 mm shaft is 873412
• 30mm (Volvo assembly listing)
• Sacrificial zinc
• Material: zinc
• Propeller shaft diameter: 30 mm
• Thread: 3/4"
• Fits: Volvo Penta propeller shafts, 30 mm shaft, 3/4" thread

🔌 Function

Corrodes sacrificially in place of the shaft and underwater metalwork, taking the galvanic attack onto itself.

⚠️ Common Signs of Failure

• Anode wasted to half its original size or less
• Anode still bright and unmarked after a season, showing it is not making electrical contact
• White or pink corrosion appearing on the propeller or shaft
• Anode loose on the shaft or lost altogether

🛠️ Service Notes

• Volvo Penta now recommends aluminium anodes for salt and brackish water rather than zinc, and is gradually phasing most zinc anodes out, so check the current listing for your shaft before reordering zinc
• Renew when about half the anode has gone, and clean the seat to bright metal so it makes proper contact - never paint an anode
• An anode left in the air for a long time can passivate and stop working; rub it back with emery paper before launching, and never use sandpaper, a wire brush or steel tools on it
• Match the thread as well as the shaft diameter - the range mixes imperial and metric threads

🔄 Supersession & Cross Reference

Aftermarket / Verified Equivalents

• Tecnoseal: TEN00719
• Recmar: REC833913

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta 2003, 2003R, 2003R SOLAS, 120S-B, 740B, 500A, 501A, 501B, 570A, 572A, 740A, 430A, 430B, 431A, 431B, 432A, 434A, 2003TB, 2003TB SOLAS, 280B, 290DP, 120SC, 130SR-C, 130S, 130S-C, 130S-B, 130SR, 130SR-A, 130SR-B, 150S, 150S-B, 150SR, 150SR-B, 2001AG, 2001B, 2001BG, 2001D, 2003D, 2003T, 2003TR, 2002AG, 2002B, 2002BG, 2002D, 2003B, 2003B SOLAS, 2003 SOLAS, 2001, 570, 500B, 2002, 430, 130S-D, 130SR-D, 150S-D, 150SR-D, 150S-C, 150SR-C, 2001R
• Volvo Penta D2-40, D2-40B, D2-40F, D2-55, D2-55B, D2-55C, D2-55D, D2-55E, D2-55F, D2-50F, D2-75, D2-75B, D2-75C, D2-75F, D2-60F
• Volvo Penta D1-30, D1-30B, D1-30F, D1-13, D1-13B, D1-13F, D1-20, D1-20B, D1-20F
• Volvo Penta AD41P-B, AD41B, AD41D, AD41, AD41A, AD41BJ
• Volvo Penta DP-C, DP-C1, DP-D, DP-D1, DP-A, DP-A2
• Volvo Penta AD31, AD31B, AD31D, AD31D-A, AD31XD
• Volvo Penta BB225A, BB225AV, BB225B, BB225C
• Volvo Penta MD2010, MD2010B, MD2010-C, MD2010-D
• Volvo Penta MD2020, MD2020B, MD2020-C, MD2020-D
• Volvo Penta MD2030, MD2030B, MD2030-C, MD2030-D
• Volvo Penta MD2040, MD2040B, MD2040-C, MD2040-D
• Volvo Penta MD22, MD22A, MD22L, MD22P
• Volvo Penta TAMD31M, TAMD31A, TAMD31B, TAMD31D
• Volvo Penta TAMD41B, TAMD41D, TAMD41M-A, TAMD41A
• Volvo Penta AQ225D, AQ225E, AQ225F
• Volvo Penta BB260AV, BB260B, BB260C
• Volvo Penta D41, D41B, D41D
• Volvo Penta KAD42A, KAD42B, KAD42P-A
• Volvo Penta KAMD42A, KAMD42B, KAMD42P-A
• Volvo Penta MD5A, MD5B, MD5C
• Volvo Penta MS2B-A, MS2B, MS2V
• Volvo Penta SP-C, SP-A2, SP-C1
• Volvo Penta TMD22A, TMD22B, TMD22P-C
• Volvo Penta TMD31A, TMD31B, TMD31D
• Volvo Penta TMD40A, TMD40B, TMD40C
• Volvo Penta TMD41A, TMD41B, TMD41D
• Volvo Penta AQ260A, AQ260B
• Volvo Penta AQAD40B, AQAD40A
• Volvo Penta MD11C, MD11D
• Volvo Penta MD17C, MD17D
• Volvo Penta MD6A, MD6B
• Volvo Penta MD7B, MD7A
• Volvo Penta MS3B, MS3C
• Volvo Penta MS4B, MS4A
• Volvo Penta TAMD40A, TAMD40B
• Volvo Penta AD30A
• Volvo Penta AD40B
• Volvo Penta AQ120B
• Volvo Penta AQ125A
• Volvo Penta AQ140A
• Volvo Penta AQ145A
• Volvo Penta AQAD30A
• Volvo Penta AQD2B
• Volvo Penta AQD21B
• Volvo Penta AQD40A
• Volvo Penta BB140A
• Volvo Penta BB145A
• Volvo Penta BB231A
• Volvo Penta BB261A
• Volvo Penta BB740A
• Volvo Penta D2002AG
• Volvo Penta D2003AG
• Volvo Penta HS1A
• Volvo Penta MB10A
• Volvo Penta MD1B
• Volvo Penta MD2B
• Volvo Penta MD21B
• Volvo Penta MD3B
• Volvo Penta MD30A
• Volvo Penta MD31A
• Volvo Penta MD40A
• Volvo Penta MD67C
• Volvo Penta MS5B
• Volvo Penta TAMD22P-B
• Volvo Penta TAMD30A
• Volvo Penta TAMD42B
• Volvo Penta TMD30A