21511163 Nipple | Genuine Volvo Penta Part

🔧 Product Description

A precision threaded nipple used to connect a pipe or hose in the assigned Volvo Penta fuel, oil, coolant or air circuit.

🚤 Compatibility

• Engine Family: D

Full model list at the end of this description.

⚙️ Key Features

• Machined fluid-line connection
• Correct OEM thread and sealing profile
• Designed for engine heat and vibration
• Provides a secure hose or pipe transition
• Suitable for the assigned fluid circuit

🔌 Function

The nipple joins the assigned hose or pipe to the engine component while maintaining a sealed flow path.

⚠️ Common Signs of Failure

• Damaged or corroded threads
• Cracked fitting
• Pipe or hose unable to seat correctly

🛠️ 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 Supersession Chain

• 21511163 → Supersedes 3831210

OEM / Related Numbers

• 3831210 earlier number superseded by this part

📦 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, D13B-E MG, D13B-E MG (FE), D13B-E MH, D13B-E MH (FE), D13B-F MG, D13B-F MG (FE), D13B-N MH, D13B-N MH (FE), D13C1-A MH, D13C2-A MH, D13C1-B MG, D13C3-B MG, D13C2-B MG, D13C4-B MG, D13C2-A MG, D13C1-A MG
• Volvo Penta D16C-A MG, D16C-A MH, D16C-B MH, D16C-C MH, D16C1-E MG, D16C1-F MG, D16C2-E MG, D16C2-F MG, D16C-D MH, D16C1-E MH, D16C1-F MH, D16C2-E MH, D16C2-F MH
• Volvo Penta D8A5-A MH, D8A6-A MH, D8A5-A MG, D8A6-A MG
• Volvo Penta D9A2L MH, D9A2A, D9A2C