Volvo Penta Heat Exchanger Screw 3858994
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Volvo Penta 3858994 is a genuine-style screw used in select Volvo Penta heat exchanger assemblies. Parts diagrams commonly show this screw in the heat exchanger cover / anode area alongside related components such as the heat exchanger cover 3858992, gasket 3858993, O-ring 983191, and anode 3858995. It is a small OEM hardware item best matched by exact Volvo Penta parts diagram location.
Key Features
- Volvo Penta screw for supported heat exchanger assemblies
- Used in the heat exchanger cover / anode service area on compatible engines
- Volvo Penta part number: 3858994
- Common catalog description: Screw
- Supplier weight reference: approximately 0.03 lb
- Genuine OEM Volvo Penta replacement reference in marine parts catalogs
Engine Compatibility
This screw is shown in Volvo Penta heat exchanger diagrams for select gasoline engine applications, including 5.0GL-FF, 5.0GXi-EF, 5.7OSi-EF, 5.7OSXi-JF, 8.1Gi-A, 8.1GXi-A, and 8.1GXi-FF models depending on serial number, cooling-system package, and exact heat exchanger configuration.
Serial Number Fitment Notice
Heat exchanger hardware fitment depends on the exact Volvo Penta engine model, freshwater-cooling package, heat exchanger assembly, cover style, and serial number range. Always confirm compatibility using the Volvo Penta engine serial number and parts diagram before ordering.
When This Part Needs Replacement
Replace this screw if the original is missing, corroded, rounded, seized, stripped, damaged during heat exchanger service, or no longer tightens correctly. Heat exchanger cover hardware should be in good condition to help maintain proper sealing around the cover, gasket, and anode service area.
Installation Notes
Confirm the screw's exact position in the heat exchanger diagram before installation. Inspect the related cover, gasket, O-ring, anode, and sealing surfaces while the assembly is apart. Tighten according to the Volvo Penta service procedure for the specific engine and avoid over-tightening small heat exchanger hardware.
Alternate/Superseded Part Numbers
- 3858994
- Volvo Penta 3858994
- VP3858994
- VOLVO-3858994
Parts Desk Insight
This screw is usually tied to heat exchanger service, so it is worth checking the cover, gasket, O-ring, and anode at the same time. The safest match is by diagram location because similar Volvo Penta heat exchanger hardware can look alike but serve different positions.
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
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.