Volvo Penta IPS10-A Upper Gear Assembly 22734346 | OEM | Item 2 in IPS10-A Drive
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Part Details
- Part Number: 22734346
- Brand: Volvo Penta (Genuine OEM)
- Official Product Type: Upper Gear Assembly — IPS Propulsion Drive
- Remanufactured Alternative: 3801875 (Volvo Penta remanufactured upper gear)
- Complete Drive Unit: 22734345 (IPS10-A complete assembly)
- Remanufactured Complete Drive: 3801874
- Diagram Position: Item 2 in Volvo Penta IPS10-A drive parts breakdown
- System: IPS Propulsion Drive — Upper Gear Section
- Drive Ratio: 1.85:1 (complete IPS10-A drive unit)
- Weight (approx.): 45 kg / ~99 lb
What This Part Is
The 22734346 is the upper gear assembly for the Volvo Penta IPS10-A propulsion drive. It forms the upper transmission section of the drive unit, transferring engine power through the input and into the lower gear section and forward-facing propeller drivetrain. In the Volvo Penta IPS10-A parts breakdown, 22734346 is Item 2, installed above lower gear 22734347 within the complete drive unit 22734345.
This is a major drivetrain assembly — not a conventional sterndrive upper unit — and replacement requires full adherence to Volvo Penta IPS10-A workshop procedures.
Compatible Applications
Verified fitment for the Volvo Penta IPS10-A propulsion drive. Always confirm by complete drive model designation and serial number before ordering.
- Volvo Penta IPS10-A
- Used within complete drive unit 22734345
- Pairs with lower gear 22734347
Fitment & Serial Number Notice
Volvo Penta uses different upper gear assemblies across the IPS product range. Each IPS drive size and generation uses specific gearing, housings, ratios, and internal assemblies that are not interchangeable between models. The strongest confirmation is locating 22734346 as Item 2 in the Volvo Penta parts diagram for the exact IPS10-A drive being serviced, verified by drive serial number.
Superseded & Related Part Numbers
- 22734346 — new OEM upper gear (this part)
- 3801875 — Volvo Penta remanufactured upper gear alternative
- 22734347 — IPS10-A lower gear assembly
- 22734345 — complete IPS10-A drive unit
- 3801874 — remanufactured complete IPS10-A drive unit
- 3801876 — remanufactured lower gear
- 22490670 — IPS10-A mounting kit
- 23433933 — IPS10-A servo unit
When This Part Needs Replacement
Upper gear replacement is typically required when inspection or service reveals any of the following:
- Internal gear tooth damage
- Bearing failure or excessive internal play
- Persistent abnormal gear noise during operation
- Metal contamination in the drive lubricant
- Water intrusion causing corrosion or bearing damage
- Severe internal wear discovered during teardown
- Physical damage to the upper transmission assembly
- Internal failure that makes rebuilding the existing upper section impractical
Because the upper gear is a major transmission assembly, diagnosis should include the complete IPS drive before committing to an upper gear replacement alone.
Installation Notes
Replacement of the IPS10-A upper gear is a major propulsion-system repair. Follow the applicable Volvo Penta IPS10-A workshop procedure in full. During service, inspect and address the following:
- Lower gear assembly 22734347 — inspect for wear or damage
- Intermediate housing and intermediate housing plate
- Mounting kit 22490670
- Servo unit 23433933
- All associated seals, O-rings, and bearing surfaces
- Drive lubricant — inspect for water or metallic debris before reassembly
- Coupling and input-drive components
- Any contamination from an internal gear or bearing failure must be fully cleared before the replacement assembly is installed
- Follow Volvo Penta specifications for lubricant type, fill volume, assembly torque, drive alignment, and commissioning
Related Parts
- Volvo Penta IPS10-A Propulsion Oil Filter 23935461 — recommended inspection or replacement during drive service
- Volvo Penta IPS10-A Lower Gear Intermediate Housing Plate 23366374 — inspect during upper/lower gear service
- Browse Volvo Penta Drive Components for additional IPS10-A service parts
- Browse Volvo Penta Marine Engine Parts for the full Volvo Penta catalog
Parts Desk Insights
Best use case: The 22734346 upper gear is the right part when the IPS10-A has suffered confirmed internal upper-section failure and the lower gear and housing have been inspected and found serviceable. Because of the significant cost of this assembly, a thorough diagnosis of the complete drive — including drive lubricant analysis and full teardown inspection — is strongly recommended before ordering. A remanufactured upper gear (3801875) or a remanufactured complete drive (3801874) may be worth comparing depending on the condition of the lower section and the vessel’s service requirements.
Common issue: The most frequent consideration with this part is whether upper-gear-only replacement or complete drive replacement is the better repair. If the lower gear (22734347) shows signs of wear, contamination, or damage alongside the upper, the cost difference between replacing both assemblies separately versus a complete drive unit (22734345 or reman 3801874) narrows considerably. Confirm the condition of both sections before committing to either path. IPS drive designation and serial number verification is essential — upper gear assemblies across the IPS range are not interchangeable by appearance.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
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All parts, components, hardware, manuals, and accessories must be included
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Important:
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