21822234 Return Connection | Genuine Volvo Penta Part

🔧 Product Description

Fuel-return connection for the D6-280A-A common-rail system. It routes controlled return fuel from the rail/injector circuit while maintaining the specified sealing and pressure characteristics.

🚤 Compatibility

• Engine Family: D
• HP Range: 180-435 HP

Full model list at the end of this description.

⚙️ Key Features

• Factory port and thread geometry
• Controls return-flow routing
• Designed for original seals and hoses
• Fluid-compatible material
• System pressure and serial match required

🔌 Function

Returns surplus fuel and injector leakage flow to the low-pressure side of the fuel system.

⚠️ Common Signs of Failure

• Leakage at the connection
• Restricted return flow
• Cracked fitting or damaged threads
• Air entry into the system
• Abnormal pressure caused by blockage

🛠️ Service Notes

• It supersedes 3584199, so older D4/D6 fuel-system records may still list that number for the same connection
• The port thread and sealing size are tied to the specific engine in the fitment list, not to the D4/D6 family generally — confirm against your engine's own fuel-system parts list rather than assuming it's common across every D4/D6 variant

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21822234 → Supersedes 3584199

OEM / Related Numbers

• 3848540 earlier number superseded by this part
• 3584199 earlier number superseded by this part
• 3584427 - pressure-retaining valve
• 3584371 - fuel-rail references
• 3588740 - fuel-rail references
• 3885742 - fuel-rail references
• 21188517 - injector references
• 23324683 - injector references

OEM Reman Alternatives

• 3803633 - remanufactured high-pressure fuel pump
• 3801294 - remanufactured injector references
• 3801857 - remanufactured injector references

📦 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, D6-330D-E, D6-370D-E, D6-370D-B, D6-330D-B, D6-330A-F, D6-370A-F, D6-370D-A, D6-330D-C, D6-330A-C, D6-370D-C, D6-330D-D, D6-370D-D, D6-330D-F, D6-370A-D, D6-330A-E, D6-370A-E, D6-370D-F, D6-330I-D, D6-310I-B, D6-280I-B, D6-280I-C, D6-280I-D, D6-280I-E, D6-435I-D, D6-280I-A, D6-310I-A, D6-300A-F, D6-300D-F, D6-300I-F, D6-310D-B, D6-310D-D, D6-310D-C, D6-310D-E, D6-370I-A, D6-370I-B, D6-330I-B, D6-330I-C, D6-370I-C, D6-370I-D, D6-310A-B, D6-280A-C, D6-310A-C, D6-310A-A, D6-280A-D, D6-310A-D, D6-280A-E, D6-310A-E, D6-310I-C, D6-280A-A, D6-280A-B, D6-330I-F, D6-370I-F, D6-400A-E, D6-435D-A, D6-435D-D, D6-435D-E, D6-435D-F, D6-435I-A, D6-435I-C, D6-435I-E, D6-400A-F, D6-435D-C, D6-435I-F, D6-330I-E, D6-370I-E, D6-330A-B, D6-370A-B
• Volvo Penta D4-260A-B, D4-260A-A, D4-260A-C, D4-260A-D, D4-260A-E, D4-260A-F, D4-260D-B, D4-260D-C, D4-260D-D, D4-260D-E, D4-260D-F, D4-260I-A, D4-260I-B, D4-260I-C, D4-260I-D, D4-260I-E, D4-260I-F, D4-300A-A, D4-300A-C, D4-300A-D, D4-300A-E, D4-300A-F, D4-300D-A, D4-300D-C, D4-300D-D, D4-300D-E, D4-300D-F, D4-300I-A, D4-180I-C, D4-225I-C, D4-180I-D, D4-225I-D, D4-180I-E, D4-225I-E, D4-180I-F, D4-225I-F, D4-210A-A, D4-210A-B, D4-225A-B, D4-225A-C, D4-225A-D, D4-300I-C, D4-300I-D, D4-300I-E, D4-300I-F, D4-225A-E, D4-225A-F, D4-210I-A, D4-210I-B, D4-180I-B, D4-225I-B