Volvo Penta Oscillation Damper 31258122
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Volvo Penta 31258122 is a genuine OEM oscillation damper used in select Volvo Penta D3 marine diesel engine applications. Current dealer and parts-catalog references consistently identify this part as the oscillation damper in D3 engine schematics, where it works within the flywheel and coupling side of the engine assembly to help manage torsional vibration and support smoother drivetrain operation.
Key Features
- Genuine Volvo Penta OEM part number 31258122.
- Identified by Volvo Penta dealers as an oscillation damper for D3 engine assemblies.
- Listed in D3-110I-F engine schematics as object key 36.
- Dealer listings show approximate product weight around 2.16 to 2.26 kg.
Engine Compatibility
Current fitment references strongly support Volvo Penta D3 applications, including D3-110I-F, D3-110I-G, D3-110I-H, D3-140A-D through D3-140A-H, D3-140I-F through D3-140I-H, D3-150I-F through D3-150I-H, D3-170A-D through D3-170A-H, D3-170I-F through D3-170I-H, D3-200A-D through D3-200A-H, D3-200I-F through D3-200I-H, and D3-220A-D through D3-220A-H, plus D3-220I-F, D3-220I-G, and D3-220I-H. Because engine application can still vary by serial range and propulsion package, final fitment should be confirmed from the correct Volvo Penta schematic.
Serial Number Fitment Notice
Match Volvo Penta part number 31258122 to your engine serial number and the correct D3 engine parts diagram before ordering. Even within the same model family, driveline and flywheel-side components can vary by build version and application.
When This Part Needs Replacement
This damper should be inspected when driveline vibration, abnormal rattling at the flywheel side, coupling irregularity, or wear is suspected during engine service. It is also worth checking whenever adjacent flywheel or coupling components are already apart, since damper-related issues can be easier to catch during planned teardown than after reassembly. This service guidance is an inference based on the part's placement in the flywheel and coupling area of the D3 engine schematic.
Installation Notes
Installation should be based on the correct Volvo Penta D3 engine schematic and service procedure for the specific engine version. Because this component sits within the flywheel and coupling side of the assembly, confirm the exact application before ordering and compare the removed part carefully against the replacement during service. This guidance is based on the D3 engine diagram placement shown in current dealer references.
Alternate/Superseded Part Numbers
The reviewed sources continue to list 31258122 as the active Volvo Penta OEM number. No clearly supported superseded Volvo Penta replacement number surfaced in the current sources reviewed.
Parts Desk Insight
With dampers like this, the easy mistake is focusing only on engine model and skipping the serial-number check. On D3 applications, that extra verification step usually matters because the part sits in a critical flywheel-side assembly where nearby components can look similar but serve different roles.
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Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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