




🛥️ Keep your MerCruiser running smooth — don’t let engine downtime anchor your adventures!
The Quicksilver 866340Q03 Oil Filter is a premium, direct replacement part designed specifically for MerCruiser sterndrive and inboard engines. Featuring superior M-Pleated filter media and an anti-drain back valve, it ensures optimal oil cleanliness and immediate lubrication at startup. Manufactured to meet Mercury Marine OEM standards, this durable metal filter guarantees reliable engine protection and performance, backed by Quicksilver’s 65+ years of marine industry leadership.





| Brand | Quicksilver |
| Material | Metal |
| Product Grade | Replacement Part |
| Vehicle Service Type | Boats |
| Item dimensions L x W x H | 4.5 x 4.4 x 6.25 inches |
| Outside Diameter | 3.04 Inches |
| Thread Size | NPT 3/4" |
| Item Weight | 12.18 ounces |
| OEM Part Number | 866340Q03 |
| Global Trade Identification Number | 00745061696488 |
| Manufacturer | Quicksilver |
| Number of Items | 1 |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 745061696495 688944036646 745061696488 |
| Item Package Dimensions L x W x H | 4.09 x 4.02 x 3.98 inches |
| Package Weight | 0.43 Kilograms |
| Item Dimensions LxWxH | 4.5 x 4.4 x 6.25 inches |
| Brand Name | Quicksilver |
| Model Name | 866340Q03 Oil Filter - MerCruiser Stern Drive and Inboard Engines |
| Color | Unspecified |
| Suggested Users | unisex-adult |
| Part Number | 866340Q03 |
| Style | Standard |
| Included Components | Oil Filter (1) |
| Size | Unspecified |
| Fishing Technique | Spinning, Casting |
R**B
good product
item arrived on time but when i opened the package the interior box was torn apart and when i examined the filter it was dented and might be used. the exterior package was not damaged so i believe this product was sent already in this condition i will be returning this item for a new one that is undamaged. received replacement everything is now good.thank you
C**K
Good oem filter
Direct fit for my 2000 5.0L efi
D**R
I have purchased this filter multiple times.
First one arrived quickly and worked well. The second time I ordered one it arrived dented but they are sending me a replacement. Dented oil filters can damage your engine and should not be used even if it looks okay. The reason I'm giving 5 stars is because the product is excellent and the company was quick to replace a damaged product.
C**Y
Perfect OEM Replacement
I buy one of these every fall. Quicksilver is to Mercury as Motorcraft is to Ford. It's OEM. Usually priced less than the Mercury-labeled brand.
T**Y
It fits!
Why did you pick this product vs others?:Perfect! Fits!
T**.
it fit
it fit
C**S
Best price
Good price for this. Quicksilver products are always good.
H**R
A Quality OEM Replacement Part
We have a 17.5 foot Searay powered by a Mercruiser 3.0L inboard/outboard. It’s in good shape for its age and very reliable. I want to keep it that way. We boat on a very large lake near our home. So for peace of mind I always use OEM replacement t/maintenance parts and perform the maintenance when the factory says to, and so far it has always gotten us home.
Trustpilot
3 weeks ago
3 weeks ago