21688380 Seawater Pipe | Genuine Volvo Penta Part

🔧 Product Description

Rigid raw-water cooling pipe used on Volvo Penta D13B marine engines with the documented ZF335A transmission arrangement. It carries seawater between the transmission cooler, heat-exchanger circuit and connected hose assemblies.

🚤 Compatibility

• Engine Family: D
• HP Range: 13-435 HP

Full model list at the end of this description.

⚙️ Key Features

• Listed for the ZF335A, MG5114SC and MG5114DC transmission arrangements
• 4.309 kg
• Rigid raw-water cooling pipe
• Listed for 149 applications on D series engines

🔌 Function

Carries seawater between the transmission cooler, the heat-exchanger circuit and the hose assemblies each end, holding the run clear of the gearbox and engine.

⚠️ Common Signs of Failure

• Salt crusting, green staining or a dried white trail along the pipe
• Seawater dripping into the bilge below the pipe run
• Raw-water flow at the outlet weaker than usual, or overheating under load
• Pipe found pitted, thinned or holed by internal corrosion at a bend

🛠️ Service Notes

• This pipe is listed for the ZF335A, MG5114SC and MG5114DC arrangements - confirm which transmission is fitted before ordering, as the run differs between them
• Renew the hose ends and clips at both connections; seawater pipework rarely fails alone
• Inspect the inside of the pipe as well as the outside - raw-water corrosion works from the bore outwards and the pipe can look sound from outside

🔄 Supersession & Cross Reference

Other-Brand OEM Numbers

• VOE21688380

Aftermarket / Verified Equivalents

• Alternative pipes: 21360567 and 23630597
• Plugs: 982363 and 823662
• Gasket: 843584
• Brackets: 21275337 and 21737423
• Clamp: 20724640
• Related pipe: 22554116

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D6-330A-D, D6-330D-E, D6-370D-E, D6-330A-F, D6-370A-F, D6-330D-D, D6-370D-D, D6-330D-F, D6-370A-D, D6-330A-E, D6-370A-E, D6-370D-F, D6-330I-D, D6-280I-D, D6-310I-D, D6-435I-D, D6-280I-E, D6-310I-E, D6-300A-F, D6-300D-F, D6-300I-F, D6-310D-D, D6-310D-E, D6-280A-D, D6-310A-D, D6-280A-E, D6-310A-E, D6-330I-F, D6-370I-F, D6-400A-E, D6-435D-D, D6-435D-E, D6-435D-F, D6-435I-E, D6-400A-F, D6-435I-F, D6-370I-D, D6-330I-E, D6-370I-E
• Volvo Penta D13C3-B MH, D13C1-B MH, D13C4-B MH, D13C2-B MP, D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-A MP, D13B-C MH, D13B-H MP, D13B-G MP, D13B-L MP, D13B-E MH, D13B-E MH (FE), D13B-K MP, D13B-N MH, D13B-N MH (FE), D13B-B MP, D13B-D MP, D13B-J MP, D13B-M MP, D13B-C MP, D13C4-B MP, D13C5-B MP, D13C6-A MP, D13C1-A MH, D13C5-A MP, D13C8-B MP, D13C7-B MP, D13C9-A MP
• Volvo Penta D4-260A-D, D4-260A-E, D4-260A-F, D4-260D-D, D4-260D-E, D4-260D-F, D4-260I-D, D4-260I-E, D4-260I-F, D4-300A-D, D4-300A-E, D4-300A-F, D4-300D-D, D4-300D-E, D4-300D-F, D4-180I-D, D4-225I-D, D4-180I-E, D4-225I-E, D4-180I-F, D4-225I-F, D4-225A-D, D4-300I-D, D4-300I-E, D4-300I-F, D4-225A-E, D4-225A-F
• Volvo Penta D3-220I-G, D3-140A-G, D3-170A-G, D3-200A-G, D3-220A-G, D3-140I-G, D3-110I-G, D3-150I-G, D3-170I-G, D3-200I-G, D3-110I-H, D3-140A-H, D3-170A-H, D3-200A-H, D3-220A-H, D3-150I-H, D3-170I-H, D3-200I-H, D3-220I-H, D3-140I-H
• Volvo Penta D11C1-A MP, D11C3-A MP, D11B3-A MP, D11A-A, D11A-B, D11A-C, D11A-D, D11A-E, D11B1-A MP
• Volvo Penta D8A5-A MH, D8A6-A MH, D8A5-A MG, D8A6-A MG, D8A1-A MP, D8A3-A MP, D8A7-A MP
• Volvo Penta D12D-C MP, D12D-D MP, D12D-E MP, D12D-F MP, D12D-G MP, D12D-H MP
• Volvo Penta D2-40F, D2-55F, D2-50F, D2-75F, D2-60F
• Volvo Penta D1-30F, D1-13F, D1-20F
• Volvo Penta D9A2H, D9A2K