Quicksilver 858004Q High-Performance Oil Filter for MerCruiser Sterndrive & Inboards
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Description
xOverview
The Quicksilver 858004Q High-Performance Oil Filter is designed for GM-built MerCruiser sterndrive and inboard engines, as well as Mercury Marine 4.5L and 6.2L powerplants. This replacement element aligns with Mercury Marine OEM specifications, offering reliable filtration for a range of marine engines that rely on clean, steady lubrication. While you service or upgrade your propulsion system, this filter provides a calm sense of confidence through a focused approach to filtration and durability.
At the heart of this filter is a superior synthetic cleansing media that targets oil contaminants with notable efficiency. In practice, it helps maintain oil cleanliness under demanding marine conditions, reducing the buildup that can occur during long days on the water. The result is filtration performance that supports steady engine operation even in challenging environments.
The filter’s design emphasizes practical, real-world use: a robust media system, a resin-rich anti-drain-back feature, and a shell built to endure the rigors of marine service. These elements work together to support consistent lubrication and protect moving parts during startup and operation.
Key benefits at a glance
- 97% of oil contaminants removed by the cleansing media, helping keep oil cleaner longer
- Anti-drain-back valve supports immediate lubrication on startup and reduces dry starts
- 50% thicker metal shell compared to conventional filters, with a durable, corrosion-resistant finish
- Engineered to Mercury Marine OEM specifications to help protect MerCruiser engines
Durability and compatibility are central to this filter. It fits MerCruiser sterndrive or inboard engines built by GM, and Mercury Marine’s 4.5L and 6.2L powerplants. If you’re upgrading or servicing a marine propulsion system, the Quicksilver 858004Q offers robust construction and proven filtration performance that aligns with long-term engine care.
Durability and build
The 50% thicker metal shell provides enhanced structural integrity, while a corrosion-resistant finish helps resist the marine environment. This combination supports resilience over time, even in saltwater conditions.
Why choose Quicksilver
- Quicksilver has delivered engine oils, parts, and accessories to the marine industry for over 65 years, earning a reputation for rugged testing and field performance
- As Mercury Marine’s premier original equipment replacement parts supplier, Quicksilver emphasizes performance, protection, and peace of mind
How to use and maintenance tips
Follow standard replacement procedures for your MerCruiser or Mercury Marine engine and verify fitment for your model before installation. During servicing, inspect the filter for signs of wear or buildup and replace according to your maintenance schedule.
FAQ
Q: Which engines is the Quicksilver 858004Q oil filter compatible with?
A: Designed for GM-built MerCruiser sterndrive/inboard engines and Mercury Marine 4.5L/6.2L, check OEM specs for your model.
Q: Does this filter help with startup lubrication?
A: Yes, it includes an anti-drain-back valve that helps maintain lubrication on startup.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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