20586428 Nipple Spare Part Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Closed Crankcase Ventilation Separator Nipple / Connection Spare Part Kit - Part Number: 20586428 A genuine Volvo / Volvo Penta connection-nipple service assembly for selected closed-crankcase-ventilation oil separators.

🚤 Compatibility

• Engine Family: D, TAD, TWD, TWG
• HP Range: Approximately 700 HP
• Year Range: Approximately 2007 onward

Full model list at the end of this description.

⚙️ Key Features

• OEM separator connection nipple
• Used in Volvo and Mack crankcase ventilation assemblies
• Also catalogued for selected Volvo Penta D16 generator separators
• Supplied as a complete sealed connection assembly
• Same OEM number used by Mack
• Engine type: Volvo D13 / D16 and Mack MP8 crankcase ventilation system

📋 Kit Contents

• 1 x nipple / connection assembly 20586428
• Integrated sealing and retaining pieces are supplied within the assembly and do not have separate public Volvo service numbers

🔌 Function

Provides the sealed hose or pipe connection at the crankcase separator so vapour and separated oil are routed without leakage.

⚠️ Common Signs of Failure

• Oil mist or liquid oil leaks at the separator connection
• Nipple is cracked, loose or corroded
• Hose connection will not remain secure
• Internal seal is hardened or damaged
• Crankcase ventilation flow is restricted by contamination

🛠️ Service Notes

• Renew the seal at the connection point when fitting — this is supplied as a complete sealed nipple assembly, not a bare nipple, so the sealing element comes with it
• Same OEM number is used by Mack for the shared D13 crankcase-ventilation circuit and is separately catalogued against D16 generator separators — confirm which separator housing you are actually working on before ordering
• Inspect the hose or pipe stub that mates to the nipple for hardening or cracking, since this is the vapour/oil connection point most exposed to heat cycling on the separator

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 21122539 D13 / MP8 crankcase separator
• 21098264 D16 separator
• 20763721 earlier separator references
• 20591306 earlier separator references
• 22543173 separator pipe
• 20580933 hose
• 20532891 gasket
• 20723207 sealing ring

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D13C4-B MH, D13C1-B MH, D13C2-B MP, D13B-E MG, D13B-E MG (FE), D13B-F MG, D13B-F MG (FE), D13B-N MH, D13B-N MH (FE), D13C4-B MP, D13C5-B MP, D13C1-B MG, D13C3-B MG, D13C2-B MG, D13C4-B MG, D13C7-B MP, D13C8-B MP, D13C9-A MP
• Volvo Penta TAD1640-42GE-B, TAD1640GE, TAD1640VE-B, TAD1640-42VE-C
• Volvo Penta TAD1341-43GE-B, TAD1341VE, TAD1341GE
• Volvo Penta TAD1344-45GE-B, TAD1344VE, TAD1344GE
• Volvo Penta TAD1641VE-B, TAD1641GE, TAD1641VE
• Volvo Penta TAD1642VE-B, TAD1642GE, TAD1642VE
• Volvo Penta TAD1342VE, TAD1342GE
• Volvo Penta TAD1343VE, TAD1343GE
• Volvo Penta TAD1345GE, TAD1345VE
• Volvo Penta TAD1350GE, TAD1350VE
• Volvo Penta TAD1340VE
• Volvo Penta TAD1346GE
• Volvo Penta TAD1351GE
• Volvo Penta TAD1352GE
• Volvo Penta TAD1353GE
• Volvo Penta TAD1354GE
• Volvo Penta TAD1355GE
• Volvo Penta TAD1360-62VE
• Volvo Penta TAD1363-65VE
• Volvo Penta TAD1643VE
• Volvo Penta TAD1650GE
• Volvo Penta TAD1651GE
• Volvo Penta TWD1643GE
• Volvo Penta TWD1652GE
• Volvo Penta TWD1653GE
• Volvo Penta TWD1663GE
• Volvo Penta TWG1663GE