21400091 Relay | Genuine Volvo Penta Part

🔧 Product Description

12-volt 20/30-amp switching relay used in starter, glow-plug, stop-solenoid, emergency-stop and EVC control circuits across a wide set of Volvo Penta diesel engines. It allows a low-current control signal to operate a higher-current circuit and replaces several earlier Volvo Penta relay references.

🚤 Compatibility

• Engine Family: D, V, TAD, VMM
• HP Range: 13-480 HP

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta 12V relay
• Nominal 20/30A switching capacity
• Used in starter, glow, stop and emergency-stop circuits depending on engine
• Supersedes established 873765, 873604 and 841177 relay references
• Engine type: Volvo Penta 12V diesel-engine electrical system
• Quantity varies by assembly, most commonly one
• Also supersedes Volvo part number 21475508

🔌 Function

Uses a low-current command from the key switch, EVC module or control circuit to switch the higher current required by the starter solenoid, glow circuit, stop device or emergency-stop circuit.

⚠️ Common Signs of Failure

• Clicking relay with no operation of the controlled component
• Intermittent starting, stopping or glow-plug operation
• Burnt, loose or corroded relay terminals
• Relay overheating or welded contacts
• Correct control voltage present but no switched output at the load terminal

🛠️ Service Notes

• Isolate the batteries before removing or fitting a relay, and note the connections as they come off
• Fit like for like — coil voltage, contact rating, pin layout and any diode or resistor built across the coil must match the original, since a relay that plugs in is not necessarily the correct one
• Check the base, socket and terminals for corrosion, spread or burnt contacts and confirm the supply and earth paths before condemning a relay; damp connections and poor earths cause more of these faults than the contacts themselves
• Mount the relay in its original clip or holder so it stays secure and as dry as possible — vibration and moisture are the usual killers in a marine installation
• On petrol installations, only ignition-protected electrical devices should be fitted in the engine space or fuel tank compartment, so use parts approved for that use

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21400091 → Supersedes 11305263

OEM / Related Numbers

• 873765 earlier number superseded by this part
• 11305263 earlier number superseded by this part
• 22637542 - later MD22 relay used on specified later engines; different terminal size and not interchangeable without verification

Aftermarket / Verified Equivalents

• RECMAR: REC21400091

📦 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, D6-310I-D, D6-435I-D, D6-310I-E, D6-280I-A, D6-310I-A, D6-300A-F, D6-300D-F, D6-300I-F, D6-310D-A, 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, D6-340I-G, D6-380I-G, D6-440I-G, D6-480I-G, D6-300A-G, D6-340A-G, D6-380A-G, D6-440I-WJ-G, D6-480I-WJ-G, D6-300D-G, D6-340D-G, D6-380D-G, D6-440D-G, D6-480D-G, D6-400A-G, D6-440A-G, D6-300I-G, 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, D6-480A-G
• 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, D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G, D4-150A-G, D4-230A-G, D4-270A-G, D4-320A-G, D4-300A-G, D4-145I-G
• Volvo Penta D3-220I-G, D3-140A-D, D3-170A-D, D3-200A-D, D3-220A-D, D3-140I-D, D3-140A-E, D3-170A-E, D3-200A-E, D3-220A-E, D3-140I-E, D3-140A-F, D3-170A-F, D3-200A-F, D3-220A-F, D3-140I-F, D3-140A-G, D3-170A-G, D3-200A-G, D3-220A-G, D3-140I-G, D3-110I-D, D3-150I-D, D3-170I-D, D3-200I-D, D3-220I-D, D3-110I-E, D3-150I-E, D3-170I-E, D3-200I-E, D3-220I-E, D3-110I-F, D3-150I-F, D3-170I-F, D3-200I-F, D3-220I-F, 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 V6-200-N, V6-200-C-N, V6-200-CE-N, V6-240-M, V6-240-C-M, V6-240-CE-M, V6-280-M, V6-280-C-M, V6-280-CE-M, V6-280-J, V6-280-CE-J, V6-280-G, V6-280-C-G, V6-280-CE-G, V6-280-C-J, V6-240-N, V6-240-C-N, V6-240-CE-N, V6-280-N, V6-280-C-N, V6-240-CE-K, V6-280-CE-K, V6-200-P, V6-200-C-P, V6-200-CE-P, V6-250-P, V6-250-C-P, V6-250-CE-P, V6-280-P, V6-280-C-P, V6-280-CE-P, V6-200-C-G, V6-200-G, V6-200-J, V6-200-C-J, V6-225-E-A, V6-280-CE-N, V6-200-M, V6-200-C-M, V6-250-O, V6-250-C-O, V6-250-CE-O, V6-240-C-G, V6-240-CE-G, V6-240-G, V6-240-J, V6-240-CE-J, V6-240-C-J, V6-250-CE-R, V6-280-CE-R
• Volvo Penta V8-350-CE-R, V8-380-CE-R, V8-300-CE-M, V8-350-CE-M, V8-300-CE-N, V8-350-CE-N, V8-380-CE-M, V8-270-CE-B, V8-300-E-A, V8-300-E-B, V8-300-CE-A, V8-320-CE-B, V8-300-CE-B, V8-320-E-A, V8-320-E-B, V8-320-CE-A, V8-380-CE-A, V8-380-CE-B, V8-380-CE-D, V8-430-CE-D, V8-350-CE-D, V8-380-CE-J, V8-430-CE-J, V8-350-CE-H, V8-350-CE-J, V8-300-CE-R, V8-430-CE-R, V8-430-CE-M, V8-300-CE-K, V8-350-CE-K, V8-380-CE-K, V8-430-CE-K, V8-300-CE-P, V8-350-CE-P, V8-380-CE-P, V8-300-CE-G, V8-300-CE-H, V8-300-CE-J, V8-350-CE-G, V8-225-CE-A, V8-225-CE-B, V8-270-E-A, V8-270-E-B, V8-270-CE-A, V8-380-CE-N, V8-430-CE-N, V8-430-CE-P, V8-300-CE-S, V8-350-CE-S, V8-400-CE-R
• 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-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), D13C4-B MP, D13C5-B MP, D13C6-A MP, D13C1-A MH, D13C2-A MH, D13C1-B MG, D13C3-B MG, D13C4-B MG, D13C2-B MG, D13C5-A MP, D13C2-A MG, D13C1-A MG, D13C7-B MP, D13C8-B MP
• Volvo Penta 8.1GiCE-P, 8.1GiCE-Q, 8.1GiE-P, 8.1GXiE-P, 8.1IPSCE-P, 8.1IPSCE-Q, 5.7GXiE-320-R, 5.7GXiCE-320-R, 5.7GXiCE-P, 5.7GXiE-P, 5.7GiE-300-P, 5.7GiE-300-R, 5.7GiCE-300-P, 5.7GiCE-300-R, 5.0GiCE-225-S, 5.0GXiCE-P, 5.0GXiE-270-R, 5.0GXiCE-270-R, 5.0GXiE-P, 4.3GXiE-225-R, 4.3GXiE-P, 4.3GXiE-Q, 4.3GXiE-225-S
• Volvo Penta D2-40, D2-40B, D2-40F, D2-55, D2-55B, D2-55C, D2-55D, D2-55E, D2-55F, D2-50F, D2-75, D2-75B, D2-75C, D2-75F, D2-60F
• Volvo Penta D11C1-A MP, D11C3-A MP, D11C2-A MP, D11C4-A MP, D11B3-A MP, D11B4-A MP, D11A-D, D11A-E, D11B2-A MP, D11A-D MP, D11A-E MP, D11B1-A MP
• Volvo Penta D1-30, D1-30B, D1-30F, D1-13, D1-13B, D1-13F, D1-20, D1-20B, D1-20F
• Volvo Penta D8A2-A MP, D8A5-A MH, D8A6-A MH, D8A5-A MG, D8A6-A MG, D8A4-A MP, D8A1-A MP, D8A3-A MP
• Volvo Penta D16C-D MH, D16C1-E MH, D16C1-F MH, D16C2-E MH, D16C2-F MH
• Volvo Penta D9A2J, D9A2L MH, D9A2K, D9A2M MP
• Volvo Penta TAD1240GE
• Volvo Penta TAD1241GE
• Volvo Penta TAD1242GE
• Volvo Penta VMM-A