Volvo Penta Split Pin 3859045
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Volvo Penta OEM Split Pin – Part No. 3859045
| Part Number | 3859045 |
| Brand | Volvo Penta |
| Component Type | Split Pin (Cotter Pin) |
| System | Sterndrive / Drive Component Assembly |
| Weight | Approx. 3 g |
| Supersedes | No confirmed OEM superseding number — 3859045 is the current active number |
| Replaced By | No documented replacement |
Compatible Applications
Split pins are application-specific — Volvo Penta uses different sizes and configurations across various sterndrive and engine assemblies. Confirm 3859045 against the Volvo Penta parts diagram for the specific assembly and serial number before ordering. Do not substitute by size alone.
- Selected Volvo Penta sterndrive and drive component assemblies — confirm by engine model, drive model, and serial number
- Exact diagram application should be verified against the applicable Volvo Penta parts catalog before ordering
When to Replace
Replace the split pin whenever it is removed during service — split pins are single-use fasteners and should never be reused once opened. Also replace if the original is bent beyond its original profile, corroded, broken, or missing from the assembly.
Installation Notes
Compare the new split pin to the original before installation to confirm the correct size and leg length for the application. Insert through the hole fully and spread the legs evenly per the Volvo Penta service procedure — do not bend sharply or the pin may crack during reassembly. Inspect the shaft, bore, and retained component for wear or damage while the pin is removed.
Technical FAQ
Can I reuse a split pin after removing it?
No — split pins are designed for single use. Once the legs are spread and then straightened for removal, the pin is fatigued and should be discarded. Always install a new pin during reassembly.
How do I identify which split pin my assembly needs?
Match by part number 3859045 using the Volvo Penta parts diagram for the specific assembly. Different assemblies may use visually similar pins of different lengths or diameters that are not interchangeable.
Is a split pin the same as a cotter pin?
Yes — split pin and cotter pin refer to the same type of fastener. Volvo Penta catalogs this component as a split pin.
Parts Desk Insights
Split pins are one of those parts that get damaged or discarded during disassembly and aren’t discovered missing until reassembly. At $7.20, it’s worth ordering one or two spares when servicing an assembly that uses them. The most common issue is customers trying to reuse the original or substitute a generic pin — confirming the Volvo Penta part number ensures correct size and material for the application.
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
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
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.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.