Volvo Penta Crankshaft Damper Pulley Nut | OEM 3531111
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Volvo Penta OEM Crankshaft Damper Pulley Nut — Part No. 3531111
Part Number: 3531111
Brand: Volvo Penta
Official Product Type: Engine Hardware & Fasteners
Diagram Position: Object Key 27 — Crankshaft / Vibration Damper Assembly
System: Engine Front-End / Crankshaft Drive
This is a genuine Volvo Penta OEM retaining nut used at the front-end crankshaft position — specifically the fastener that secures the damper pulley assembly. It is not a generic fastener. The thread spec, torque rating, and dimensional fit are engineered to the Volvo Penta front-end hardware stack, and substituting by wrench size alone is a common source of repeat service issues.
Compatible Applications
Fitment is confirmed by Volvo Penta serial number and parts diagram. The strongest verified placement is:
- Crankshaft / vibration damper assembly — Diagram Position: Object Key 27
- Confirm fitment using your engine serial number against the correct Volvo Penta parts diagram before ordering
- Applies to Volvo Penta engine families where Part No. 3531111 is called out at the front-end crankshaft position
Serial Number Requirement
Fitment can vary by engine family, pulley arrangement, and front-end hardware configuration. Always verify Part No. 3531111 against your engine serial number and the applicable Volvo Penta parts diagram — particularly on front-end assemblies where adjacent fasteners can appear similar but serve different positions.
Dimensions & Weight
- Weight: Approximately 0.06 kg (60 g)
- Exact thread spec and wrench size: confirm via Volvo Penta diagram for your engine serial
Supersession
Order using Part No. 3531111 as the active number. No confirmed supersession or replacement part number has been identified in current Volvo Penta catalog data. If a supersession exists for your engine serial, it will appear in the official Volvo Penta parts lookup.
When to Replace
Replace this nut when the original fastener is damaged, rounded, thread-worn, corroded, stretched, or no longer properly secures the pulley or damper hardware. It is also recommended as a precautionary replacement during any adjacent front-end engine service if the original fastener has been removed and shows visible wear or deformation.
Installation Notes
Confirm the part number and diagram position before installation. Inspect the related pulley, vibration damper, and fastening surfaces at the same time to avoid repeat front-end hardware issues after service. Torque to Volvo Penta specification for this position.
Parts Desk Insights
This is one of those parts that looks simple but causes real headaches when the wrong fastener goes in. The most common issue we see is customers trying to match by thread size and wrench fit rather than by diagram position — the front-end of these engines can have several similar-looking nuts in close proximity. Ordering by part number and confirming against your serial number is the right call here. Best used as a direct OEM replacement during front-end engine service, vibration damper R&R, or crankshaft pulley work.
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
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.