21122910 Hub | Genuine Volvo Penta Part
21122910 Hub | Genuine Volvo Penta Part
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In stock — Australian warehouse
Typically reaches our store in 3–5 business days
Availability checked daily with Volvo Penta
✓ Authorised Volvo Penta Dealer · Genuine Volvo Penta parts · Ships Australia-wide
🔧 Product Description
Genuine clutch hub used in the Volvo Penta DPI-A clutch and gear assembly. The hub supports the designated clutch discs and transmits propulsion torque through the matched shaft and gear components.
🚤 Compatibility
Typically suits:
- Volvo Penta D6-300A-G
- Volvo Penta D6-340A-G
- Volvo Penta D6-380A-G
- Volvo Penta DPI-A
- Volvo Penta D6-400A-G
- Volvo Penta D6-440A-G
- Volvo Penta D4-150A-G
- Volvo Penta D4-230A-G
- Volvo Penta D4-270A-G
- Volvo Penta D4-320A-G
- Volvo Penta D4-300A-G
- Engine Family: D, DPI
- HP Range: 150-440 HP
⚙️ Key Features
- Exact DPI-A clutch application
- Precision-machined hub and spline geometry
- Designed for marine propulsion torque
- Used with the DPI-A disc and gear assembly
- Drive ratio and serial number control fitment
- 2 used per assembly
🔌 Function
The hub connects the clutch components to the drive shaft and transfers torque when the clutch is engaged.
⚠️ Common Signs of Failure
- Worn splines
- Excess clutch backlash
- Drive slipping or failing to engage
- Metallic engagement noise
- Heat discolouration
- Cracking or fretting
🛠️ Service Notes
- Get the hub off with the correct puller rather than levering or hammering it; a hub driven off or on is enough to damage the shaft, the bearing behind it and the hub itself
- Clean and inspect the shaft, keyway or taper and check for scoring, wear steps and fretting; a hub will not run true on a damaged seat and the fault will come straight back
- Inspect and renew the seal that runs on or behind the hub while access is good, and check the sealing surface for a wear groove
- Draw the hub on square, fully home to the position the workshop manual for your engine gives, and tighten the retaining fastener to the manual figure with any specified locking method
- Check the drive belt alignment and run-out after fitting, then run the engine and watch for wobble, noise or a belt tracking off to one side
🔄 Supersession & Cross Reference
OEM Supersession Chain
- 21122910 → Supersedes 3861188
OEM / Related Numbers
- 3861188 earlier number superseded by this part
- 21357719 - Disc kit
- 23528321 - Gear set
- 22692858 - Shaft
- 21747925 - Bearing
- 23221285 - Needle-bearing kit
- 22876845 - Clamping sleeve
📦 Condition
- Genuine Volvo Penta part
- Brand new
- Supplied in original or equivalent packaging
Shipping & Delivery
Shipping & Delivery
Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.
Returns & Warranty
Returns & Warranty
14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.
Not sure this fits?
Not sure this fits?
Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.
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