Mercury MerCruiser Quicksilver Remote Oil Filter Hose 864925 | 32-864925
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Mercury / Quicksilver OEM Remote Oil Filter Hose — Part No. 864925 / 32-864925
| Part Number | 864925 / 32-864925 |
|---|---|
| Brand | Mercury Marine / Quicksilver |
| Product Type | Remote Oil Filter Hose – Oil Hose From Adaptor |
| Sold As | Individually |
| UPC / GTIN | 745061560291 |
| System | Remote Oil Filter Circuit |
| Diagram Position | "Oil Hose – From Adaptor" |
| Supersedes | 863651 / 32-863651 (earlier serial ranges through 0M614999) |
About This Part
The 864925 / 32-864925 is a genuine Mercury Marine / Quicksilver OEM hose that routes engine oil from the engine-mounted adaptor to the remote oil filter assembly. It is the "from adaptor" hose in the remote oil filter circuit — working alongside companion hose 864924 / 32-864924 ("to adaptor"), which handles the return side. These two hoses work as a pair but are not interchangeable — position in the circuit determines which part number is correct.
This hose applies on documented 5.0L / 5.7L applications from serial number 0M615000 and up, replacing the earlier hose 863651 / 32-863651 used on lower serial-number engines.
Compatible Applications
Confirm the exact engine model, serial number, and remote oil filter configuration before ordering. Documented applications include selected MerCruiser engines equipped with the remote oil filter assembly:
- 5.0L / 305 CID V8
- 5.7L / 350 CID V8
- 350 MAG MPI
- 350 MAG MPI Horizon
- 377 MAG MPI
- 6.3L / 383 CID MPI
- Selected Alpha and Bravo sterndrive configurations
Serial number split (5.0L / 5.7L applications):
- 32-863651 — "From adaptor" hose, serial numbers through 0M614999
- 32-864925 — "From adaptor" hose, serial numbers 0M615000 and up
When to Replace
- Oil seepage at crimped ends or fittings
- Cracking, hardening, or brittleness of the hose body
- Abrasion from contact with surrounding components
- Kinking or internal collapse
- Corrosion at the fittings
- Damage from engine or filter-service work
- Persistent oil leakage in the remote-filter circuit
Any oil leak in this circuit should be corrected promptly — reduced oil level or lubrication pressure can cause serious engine damage.
Installation Notes
- Confirm the hose is installed in the "from adaptor" position — do not swap with companion hose 864924
- Inspect the companion "to adaptor" hose 864924 / 32-864924 at the same time
- Check adaptor 818400A1 and fitting 806121 for wear or damage
- Inspect seal 42077 and replace if deteriorated
- Check the remote oil filter bracket and filter head for cracks or leaks
- Route the hose clear of exhaust components, sharp edges, and rotating belts
- Verify no twists or kinks remain after installation
- Run engine and inspect all connections carefully for leaks before returning to service
Related Parts
- 864924 / 32-864924 — Companion oil hose, "to adaptor" (return side)
- 863651 / 32-863651 — Earlier "from adaptor" hose (serial numbers through 0M614999)
- 863650 / 32-863650 — Earlier "to adaptor" hose
- 818400A1 — Oil filter adaptor
- 864990A1 — Remote oil filter kit
- 863732T1 — Remote oil filter bracket
- 806121 — Fitting
- 42077 — Seal
- Mercury Quicksilver Oil Filter Adapter Gasket 8M0188440 — Remote oil filter assembly gasket
Cross-Reference / Alternate Part Numbers
- 864925 (primary SKU)
- 32-864925 (Mercury-prefixed number)
- 863651 / 32-863651 — Earlier superseded "from adaptor" hose
Parts Desk Insights
The most common ordering mistake on this part is confusing 864925 ("from adaptor") with 864924 ("to adaptor") — they look nearly identical and live side by side on the diagram. The reliable check is the diagram position label: "Oil Hose – From Adaptor" is always 864925. Additionally, confirm your engine's serial number: engines below serial 0M615000 use the earlier hose 863651. If you are servicing an older engine and 864925 doesn't match your diagram, the earlier number is the correct one to order.
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.