21168724 Nipple | Genuine Volvo Penta Part

🔧 Product Description

A threaded low-pressure fuel nipple at the D13 engine-driven pump/filter circuit. It provides the correct hose connection and internal flow passage and seals against gasket 947622.

🚤 Compatibility

• Engine Family: D, TWD, TAD

Full model list at the end of this description.

⚙️ Key Features

• D13 low-pressure fuel-system connection
• Correct thread and sealing shoulder
• Internal bore sized for pump supply flow
• Machined hose end prevents leakage and air ingress
• Used with hose 21163011 and pump 22677520
• Engine type: D13 low-pressure fuel-pump and filter system

🔌 Function

Provides the sealed transition between the D13 fuel pump and its connected low-pressure hose.

⚠️ Common Signs of Failure

• Unstable idle, misfire or reduced power
• Fuel leakage or air ingress
• Injection or fuel-pressure fault codes
• Excessive smoke, combustion knock or uneven exhaust temperature

🛠️ Service Notes

• Check the bore is clear before fitting — a nipple is often the feed point or restriction for a circuit, and debris left in it will starve whatever it supplies
• On tapered threads use the paste or liquid sealant specified for the fluid concerned, applied a few threads back from the open end; avoid thread tape on fuel and oil lines, where a shed shred travels downstream into filters, pumps and injectors
• Where the nipple seals on a face or against a washer rather than on its thread, fit a new sealing washer instead of curing a weep by overtightening
• Tighten to the figure in the workshop manual for your engine — these are small fittings in castings and are easily stripped, or the surrounding boss cracked
• Support the pipe or hose so it meets the nipple square and without side load, then check the joint at working pressure and temperature

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 947622 - sealing gasket
• 22677520 - fuel pump
• 21163011 - fuel hose
• 3849120 - fuel-filter housing references
• 21140141 - fuel-filter housing references

📦 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, D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-A MP, D13B-H MP, D13B-G MP, D13B-L MP, D13B-E MG, D13B-E MG (FE), D13B-F MG, D13B-F MG (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-B MG, D13C3-B MG, D13C2-B MG, D13C4-B MG, D13C5-A MP, D13C7-B MP, D13C8-B MP, D13C9-A MP
• Volvo Penta TAD1641VE-B, TAD1641GE, TAD1641VE
• Volvo Penta TAD1642VE-B, TAD1642GE, TAD1642VE
• Volvo Penta TAD1341-43GE-B, TAD1341GE
• Volvo Penta TAD1344-45GE-B, TAD1344GE
• Volvo Penta TAD1640GE, TAD1640VE-B
• Volvo Penta TAD1650GE, TAD1650VE
• Volvo Penta TAD1342GE
• Volvo Penta TAD1343GE
• Volvo Penta TAD1345GE
• Volvo Penta TAD1350GE
• Volvo Penta TAD1351GE
• Volvo Penta TAD1352GE
• Volvo Penta TAD1353GE
• Volvo Penta TAD1354GE
• Volvo Penta TAD1355GE
• Volvo Penta TAD1643VE
• Volvo Penta TAD1651GE
• Volvo Penta TAD1660-62VE
• Volvo Penta TAD1662VE EU5
• Volvo Penta TWD1643GE
• Volvo Penta TWD1652GE
• Volvo Penta TWD1653GE
• Volvo Penta TWD1663GE