Volvo Penta DISTRIBUTOR CAP 3858975
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The Volvo Penta 3858975 Distributor Cap is a genuine OEM ignition component listed by Volvo Penta as distributor cap. Current supportable references also identify it as an HVS Delco V8 flat distributor cap, making it a targeted replacement for selected Volvo Penta gasoline engines where clean spark distribution and dependable ignition performance matter.
Key Features
- Genuine Volvo Penta OEM part
- Part number: 3858975
- Factory replacement distributor cap
- Commonly identified as an HVS Delco V8 flat distributor cap
- Used on selected Volvo Penta V8 gasoline ignition applications
- Commonly paired with rotor 3858977 in related service listings.
Engine Compatibility
Commonly associated with selected Volvo Penta V8 gasoline applications, including supportable references tied to 5.0L, 5.7L, and certain later MPI / Gi / GXi style engines using Delco HVS distributor systems. Current replacement listings also connect this cap with 2000-and-later GM-based Volvo Penta V8 marine engines in the approximate 225–320 HP range, but exact fitment can still vary by ignition setup and production range.
Serial Number Fitment Notice
Fitment may vary by engine model, ignition-system configuration, and production break. Always confirm compatibility by engine model and serial number before ordering. Matching the distributor cap by the existing ignition setup is especially important on gasoline engines where similar caps can look close but fit differently.
When This Part Needs Replacement
Replace this distributor cap when the original cap is cracked, carbon-tracked, moisture-damaged, corroded at the terminals, or no longer providing dependable spark distribution. Hard starting, misfire, rough running, and weak ignition performance are common signs that cap service may be due.
Installation Notes
Confirm the exact application before installation and compare the new cap to the original ignition component during service. Inspect the rotor, plug wires, and distributor body at the same time so the replacement cap is installed into a clean, reliable ignition system.
Alternate/Superseded Part Numbers
Current references identify this item as 3858975. Related service references also commonly associate this cap with rotor 3858977, and cross-reference listings connect it with Mercury 8M6001106 and Crusader RA108009 in matching service applications. Cross-reference use should still be confirmed by exact application before interchangeability is assumed.
Parts Desk Insight
If you are already servicing the cap on an HVS V8 setup, it is usually worth looking closely at the rotor and plug-wire ends at the same time. Ignition parts tend to age together, and catching the weak link now is a lot easier than chasing the same misfire twice.
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.