984456 Lock Nut | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta lock nut weighing 0.016 kg and listed for 366 applications across the D, IPS, V, DPH, TSK and DPI ranges. It supersedes part number 946435.

🚤 Compatibility

• Engine Family: D, IPS, V, DPH, TSK, DPI, DPR, TAD
• HP Range: 13-480 HP

Full model list at the end of this description.

⚙️ Key Features

• 0.016 kg
• Supersedes 946435
• 366 applications
• Covers the D, IPS, V, DPH, TSK and DPI ranges
• 2 used per assembly

🔌 Function

Holds a threaded joint tight against vibration, resisting the tendency of a plain nut to work loose in service.

⚠️ Common Signs of Failure

• Nut found slack or backed off despite being tightened
• The nut spinning down the thread with no resistance at all
• Flats rounded or the nut deformed out of shape
• Thread stripped or picked up on removal
• Rust or scale binding the nut on the stud

🛠️ Service Notes

• A lock nut that runs freely down the thread has lost its locking action and must not be refitted, even if it looks sound
• Check the stud or bolt thread before running a new nut on - a damaged male thread will spoil the new nut too

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 984456 → Supersedes 946435

OEM / Related Numbers

• 946435 earlier number superseded by this part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 D6-370A-C, D6-350A-A, D6-350A-B, D6-330A-D, D6-330D-E, D6-370D-E, D6-330A-F, D6-370A-F, D6-330A-C, 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-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-E, D6-435D-F, D6-435I-A, D6-435I-C, D6-435I-E, D6-400A-F, D6-435I-F, D6-330I-E, D6-370I-E, D6-330A-B, D6-370A-B
• Volvo Penta D3-110I-B, D3-110I-C, D3-130I-C, D3-220I-G, D3-130A-A, D3-160A-A, D3-130A-B, D3-160A-B, D3-130A-C, D3-160A-C, 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, D3-190A-B, D3-190A-C, D3-190I-A, D3-110I-A, D3-130I-A, D3-160I-A, 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, D3-160I-C, D3-190I-B, D3-190I-C, D3-140A-H, D3-170A-H, D3-200A-H, D3-220A-H, D3-130I-B, D3-160I-B, D3-150I-H, D3-170I-H, D3-200I-H, D3-220I-H, D3-140I-H
• Volvo Penta D4-260A-B, D4-260A-A, D4-260A-C, D4-260A-D, D4-260A-E, D4-260A-F, 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-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 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, V8-430-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
• 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-A MP, D13B-C MH, D13B-H MP, D13B-G MP, D13B-L MP, D13B-E MH, D13B-E MH (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-A MH, D13C2-A MH, D13C5-A MP, D13C8-B MP
• Volvo Penta V6-200-CE-N, V6-240-CE-M, V6-280-CE-M, V6-280-CE-J, V6-280-CE-G, V6-240-CE-N, V6-240-CE-K, V6-280-CE-K, V6-200-CE-P, V6-250-CE-P, V6-280-CE-P, V6-225-E-A, V6-280-CE-N, V6-250-CE-O, V6-240-CE-G, V6-240-CE-J, V6-250-CE-R, V6-280-CE-R
• 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 TSK DPH, TSK DP-H, TSK DP-H/DPR, TSK DPH-A, TSK DPH-AP, TSK DPH-AS, TSK DPH-B, TSK DPH-BP, TSK DPH-BS, TSK DPH-C, TSK DPH-E, TSK DPH-D
• Volvo Penta D1-30, D1-30B, D1-30F, D1-13, D1-13B, D1-13F, D1-20, D1-20B, D1-20F
• Volvo Penta D8A5-A MH, D8A6-A MH, D8A5-A MG, D8A6-A MG, D8A4-A MP, D8A1-A MP, D8A2-A MP, D8A3-A MP, D8A8-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 DPH-D1, DPH-E, DPH-A, DPH-C
• Volvo Penta 8.1IPSCE-P, 527, 577S, 627SV
• Volvo Penta D2-40, D2-40B, D2-40F
• Volvo Penta DPR-A, DPR-C, DPR-B
• Volvo Penta DPI-A
• Volvo Penta IPS15-C
• Volvo Penta IPS20-E
• Volvo Penta IPS30-E
• Volvo Penta TAD1360-62VE
• Volvo Penta TAD1363-65VE
• Volvo Penta TAD852VE-B