21914725 Ring Gear | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta IPS10-A Steering Ring Gear, part number 21914725. A genuine internal ring gear used in the IPS10-A planetary steering assembly. It provides the fixed internal tooth path for the planet gears.

🚤 Compatibility

• Engine Family: D, IPS
• HP Range: 110-480 HP
• Year Range: Approximately 2012 - current supported applications

Full model list at the end of this description.

⚙️ Key Features

• Precision-machined running, gear or bearing surfaces
• Factory tooth, journal or spline geometry
• Designed for continuous engine or steering load
• Requires correct lubrication and assembly clearances
• Engine type: Volvo Penta IPS pod-drive electronic steering system

🔌 Function

Transfers or controls rotational motion while preserving the specified timing, gear ratio, alignment and bearing relationship.

⚠️ Common Signs of Failure

• Loss of timing or steering response
• Premature bearing, seal or adjoining-gear failure

🛠️ Service Notes

• This is the fixed internal ring gear inside the IPS10-A steering planetary set — it is not a flywheel/starter ring gear, so the starter-pinion checks used for other ring gears in this item type do not apply here
• Inspect the mating planet-gear teeth for matching wear before refitting, and use the lubricant and assembly clearance specified for the steering unit

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21914725 → Supersedes 3588117

OEM / Related Numbers

• 3588117 earlier number superseded by this part
• 21914721 - sun gear
• 21914723 - planet gear
• 21914729 - steering axle
• 21914727 - version-specific drive plates
• 21914731 - version-specific drive plates
• 3588127 - spacer plate
• 945486 - snap ring

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D6-330A-F, D6-370A-F, D6-330D-F, D6-370D-F, D6-300A-F, D6-300D-F, D6-300I-F, D6-340I-G, D6-380I-G, D6-440I-G, D6-480I-G, D6-300D-G, D6-340D-G, D6-380D-G, D6-440D-G, D6-480D-G, D6-300I-G, D6-330I-F, D6-370I-F, D6-435D-F, D6-400A-F, D6-435I-F
• Volvo Penta D4-260A-F, D4-260D-F, D4-260I-F, D4-300A-F, D4-300D-F, D4-180I-F, D4-225I-F, D4-300I-F, D4-225A-F, D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G
• Volvo Penta D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-E MH, D13B-E MH (FE), D13B-N MH, D13B-N MH (FE), D13C6-A MP, D13C1-A MH, D13C2-A MH, D13C5-A MP
• Volvo Penta 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 D8A5-A MH, D8A6-A MH, D8A1-A MP, D8A2-A MP, D8A3-A MP, D8A4-A MP
• Volvo Penta D11B3-A MP, D11B4-A MP, D11B2-A MP, D11B1-A MP
• Volvo Penta IPS10-A, IPS10-B