877721 Sealing Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta sealing kit from the Marine Propulsion group, weighing 0.156 kg and listed for 21 applications across the D series engines and HS series transmissions. A second sealing kit for the same group, 877723 at 0.249 kg, covers 20 applications, and neither carries a variant note - so order the number your transmission's parts list calls for.

🚤 Compatibility

• Engine Family: D, HS
• HP Range: 300-435 HP

Full model list at the end of this description.

⚙️ Key Features

• 0.156 kg
• Listed for 21 applications across D engines and HS transmissions
• Sealing kit 877723 is the other set listed here, at 0.249 kg for 20 applications

🔌 Function

Renews the seals of the transmission in one set, so every joint disturbed during the strip is closed with a new seal.

⚠️ Common Signs of Failure

• Oil weeping from the transmission casing joints or the output shaft
• Gearbox oil level dropping between checks
• Oil turned milky where water has found its way in
• Drips appearing under the gearbox after running

🛠️ Service Notes

• Confirm the transmission model against the parts list - 877723 is the other HS sealing kit listed here
• Check the shaft sealing surfaces for scoring before fitting new seals

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D6-310I-D, D6-310I-E, D6-300I-F, D6-330I-C, D6-370I-C, D6-330I-D, D6-310I-C, D6-330I-F, D6-370I-F, D6-435I-C, D6-435I-D, D6-435I-E, D6-435I-F, D6-370I-D, D6-330I-E, D6-370I-E
• Volvo Penta D4-300I-C, D4-300I-D, D4-300I-E, D4-300I-F
• Volvo Penta HS80AE