Volvo Penta Stud 3858964
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Volvo Penta 3858964 is a genuine OEM stud used in Volvo Penta marine engine applications. Volvo Penta's official parts shop identifies part 3858964 simply as "stud," and current parts references place it in a throttle body exploded view rather than as general-purpose hardware.
Key Features
Genuine Volvo Penta OEM part number 3858964. Official Volvo Penta description: stud. Current schematic references associate it with a throttle body application, and current retail parts sources list it with diagram reference number 23 and an approximate weight of 0.06 lb.
Engine Compatibility
Current fitment references connect Volvo Penta 3858964 to a broad range of Volvo Penta gasoline marine engines and sterndrive packages, including many 4.3, 5.0, 5.7, V6, and V8 Gi/GXi/OSi/OSXi variants, as well as multiple V8-225, V8-270, and V8-300/320 model families. Because mounting hardware can vary by throttle body version, engine variant, and production break, fitment should still be confirmed to the exact serial-numbered engine or drive package.
Serial Number Fitment Notice
Always confirm 3858964 against the exact engine serial number and the correct Volvo Penta parts diagram before ordering. Volvo Penta's parts shop specifically directs customers to identify the exact engine, shield, or drive when locating the correct spare parts.
When This Part Needs Replacement
Replace this stud when the original hardware is corroded, bent, stripped, damaged during removal, or no longer provides secure thread engagement in the throttle body or related mounting point. It is also a sensible replacement anytime the surrounding assembly is apart and the original stud shows wear or damaged threads. This service guidance is based on the identified throttle-body application.
Installation Notes
Install only in the correct matched Volvo Penta application. Inspect the threaded bore, nut, and surrounding throttle-body mounting area before reassembly, and follow the correct Volvo Penta service information for the serial-numbered engine. Proper thread condition and correct hardware fit are important for reliable retention in throttle-body assemblies. This installation guidance is a practical service inference supported by the identified schematic placement.
Alternate/Superseded Part Numbers
Current sources reviewed list this part under active Volvo Penta number 3858964. No confirmed superseded Volvo Penta number was established in the sources reviewed here.
Parts Desk Insight
Small studs are easy to overlook, but on throttle-body assemblies they matter for proper clamping and alignment. Replacing worn or damaged hardware during service can help avoid repeat loosening, poor mounting fit, and unnecessary rework later on. That advice is consistent with the current throttle-body application references for 3858964.
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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
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