21400685 Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta transparent seawater filter cover, listed as fitting all seawater filters for D4 and D6 engines. It weighs 1.377 kg and is listed for 51 applications across the D4, D6 and IPS ranges. The clear cover lets the strainer be inspected for weed and debris without opening the filter, and it is used with seawater filter assembly 3889148.

🚤 Compatibility

• Engine Family: D
• HP Range: 210-435 HP
• Year Range: Approximately 2003-2020, dependent on engine series

Full model list at the end of this description.

⚙️ Key Features

• Transparent cover
• Fits all seawater filters for D4 and D6 engines
• Used with seawater filter assembly 3889148
• 1.377 kg
• 51 applications across the D4, D6 and IPS ranges
• Transparent, so the strainer can be inspected without opening the filter
• Fits: All seawater filters for D4 and D6 engines

📋 Kit Contents

• Earlier service configuration: 3 × spacer sleeve - 3583853
• Alternative transparent-cover configuration: 1 × cover - 21400696
• 4 × spacer sleeve - 994722
• 4 × handle - 21457174
• 2 × mounting bracket - 21400686
• 2 × hexagon socket screw - 942001
• 2 × lock nut - 963105
• 1 × support bracket - 21368510
• 3 × flange screw - 946173
• 2 × flange nut - 945408
• The correct configuration is selected by filter version and Volvo service bulletin P-26-6-4

🔌 Function

Closes and seals the top of the seawater filter housing while leaving the strainer basket and the raw water flow visible for inspection.

⚠️ Common Signs of Failure

• Raw water leaking or weeping around the filter cover
• Cover clouded, crazed or cracked so the strainer cannot be seen
• Loose handles or uneven cover compression
• Air being drawn into the raw water circuit at the cover seal
• Overheating because the strainer cannot be inspected or sealed correctly

🛠️ Service Notes

• Close the seacock before removing the cover, and renew the seal rather than reusing one that has taken a set
• A clear cover is only useful if the strainer is checked - make it part of the pre-start routine after running in weedy or silty water

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21400685 → Supersedes 3889146

OEM / Related Numbers

• 3889146 earlier number superseded by this part
• 3889148 seawater-filter assembly
• 3583342 strainer housing
• 3583340 sealing ring
• 3583341 strainer
• 3583339 pressure plate
• 21400696 transparent cover
• 21457174 handle

Other-Brand OEM Numbers

• VOE21400685

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D6-370A-C, D6-350A-A, D6-350A-B, D6-330A-D, D6-370D-B, D6-330D-B, D6-370D-A, D6-330D-C, D6-330A-C, D6-370D-C, D6-330D-D, D6-370D-D, D6-370A-D, D6-310D-B, D6-310D-D, D6-310D-C, D6-310A-B, D6-280A-C, D6-310A-A, D6-280A-D, D6-280A-A, D6-280A-B, D6-435D-A, D6-435D-D, D6-435D-C, D6-330A-B, D6-370A-B
• Volvo Penta D4-260A-B, D4-260A-A, D4-260A-C, D4-260A-D, D4-260D-B, D4-260D-C, D4-260D-D, D4-300A-A, D4-300A-C, D4-300A-D, D4-300D-A, D4-300D-C, D4-300D-D, D4-210A-A, D4-210A-B, D4-225A-B, D4-225A-C, D4-225A-D, D4-225I-B
• Volvo Penta 8.1IPSCE-JF, 8.1IPSCE-MF, 8.1IPSCE-P, 8.1IPSCE-Q, 8.1IPSE-JF