Shop Our Bypass Oil Filtration Systems & Mounts
Bypass Oil Filtration Systems for Diesel Trucks, Fleets & High-Mileage Engines
Shop AMSOIL Bypass Oil Filtration Systems & Mounts // for Diesel Trucks, Fleets & High-Mileage Vehicles
Built to Handle Soot, Sludge & Metal Shavings, Reduce Downtime & Extend Service Intervals for Fleet & Commercial Vehicles
For many, adding a bypass filtration system can help their engine run better for longer. This upgrade can go a long way, whether you are running a heavy-duty diesel engine, a consumer engine, or even a commercial truck or bus. For many consumer vehicles, a bypass filter system is an aftermarket addition that increases the overall filtration rate and provides cleaner oil to your engine. On the commercial side, an aftermarket bypass filtration system can be a massive upgrade over the one you got from the factory.

Your engine’s thirsty.
Slide into our DMs… or just fill out the form.
Amsoil - Form #1
We will get back to you as soon as possible.
Please try again later.
What is a Bypass Filtration System?
A bypass filter system is all of the components that make up an oil bypass filtration system on your vehicle. This system will include the secondary bypass filter element, which is a high-efficiency filter canister; a filter mount or manifold to house the filter in the engine bay; the pressure supply line, which takes the oil from the engine port to the bypass filter; and the return line, which will take the cleaned oil to the oil pan. These systems are built to last and are straightforward to operate and install.
What are the benefits of a Bypass Filtration System?
Adding a bypass filtration system to your commercial vehicle, truck, or bus offers many benefits. These systems are proven to capture particulates, sludge, and soot down to one to two microns. In comparison, a typical motor oil filter captures particles down to twenty microns. In addition to the added filtration, a bypass system can increase your oil's life and extend the time between oil changes. Finally, because the oil stays cleaner and closer to brand-new specs, you'll reduce long-term friction in the engine and help prevent physical damage to small components in the engine bay.
Our Bypass Filtration Systems and Mounts
As a full-service bypass filtration system company, Amsoil has developed and milled a variety of filtration systems, components and mounts that will work for your car, truck or SUV. Whether you are looking for a specific filter mount assembly, oil sample valve kits, adaptor kits, oil return fittings, or even hoses, gaskets, or fittings, Amsoil has the parts you need to make your replacement or installation service a breeze.
What's Your Choice Of Ride?
We have an AMSOIL product for every vehicle - it's your ride, you decide.

Your engine’s thirsty.
Slide into our DMs… or just fill out the form.
Amsoil - Form #2
We will get back to you as soon as possible.
Please try again later.
AMSOIL // Engineered For What You Drive & How You Drive
From daily drivers to diesel haulers, weekend toys to workhorse machines — every engine deserves oil that’s made to handle the way you use it. Share a few details with us, and we’ll match you with the premium AMSOIL products designed to protect your engine and boost performance where it counts.
Frequently Asked Questions
No Dumb Questions, Just Dry Dipsticks
Can you install a bypass filtration system by yourself?
Yes, installing a new bypass filtration system is pretty straightforward for experienced amateur mechanics. Amsoil systems are bolt-on and require you to install the mounting bracket in the engine bay, splice into the oil pressure source, and route a return line back to the main oil pan, oil cap, or valve cover. However, if you are not as confident working on your oil and engine system, your trusted local mechanic can certainly assist and complete the installation for you.
Why do you need a bypass filtration system?
Although your consumer vehicle does not need a bypass filtration system to operate, it will help better clean and protect your engine. A traditional oil filter will filter particulates between twenty and forty microns. However, a bypass system filters particulates down to 2 microns, allowing the filter to catch metal shavings, soot, and dust from your engine oil.
Will a bypass filtration system drop your engine’s oil pressure?
No, bypass filtration systems are designed to work alongside your existing engine system and use a calibrated metering orifice within the filter mount to draw a small portion of the oil from the main drain pan. For Amsoil systems, only 5 to 10 percent of your oil moves to the secondary filter, which will not drop the system's oil pressure.
Can you extend your oil change intervals with a bypass system?
Yes, you can extend the life of your oil by using a bypass filtration system on a commercial or consumer vehicle. Because bypass filtration systems remove micro-abrasives and soot proven to degrade your oil, you can increase your oil change intervals by up to 40 percent. However, you should complete routine testing to verify that your oil’s chemistry and additive levels are in the green zone. If you notice your levels dropping, you need an oil change.
What types of vehicles can benefit the most from a bypass filtration system?
A few types of vehicles can benefit from installing an aftermarket bypass filtration system. This includes high-mileage commuters who are looking to increase their engine’s longevity, diesel trucks such as those who are running Duramax, Cummins or Powerstroke engines to clean soot that can build up in the engine bay and motor oil, off-road or construction vehicles that operate in high dust and high intensity environments and fleet vehicles who are looking to cut down on down time and increase protection over the engine.
High Performance Has No Zip Code Limits
No matter where you wrench or ride, AMSOIL is right there with you.
Toledo
Beverly, Birmingham, Darby (Eastern to South-Old South End), DeVeaux, Crossgates, Five Points, Downtown, East Toledo, Franklin Park, Garfield, Glendale-Heatherdowns (Byrne-Heatherdowns Village), Harvard Terrace, Library Village, Nasby, North Towne, Old Orchard, Old West End, Old South End, Old Town, ONE Village (includes the Polish International Village, Vistula, & North River), ONYX (includes historic Kuschwantz and Lenk's Hill neighborhoods), Ottawa, Point Place, Reynolds Corners, Roosevelt, Scott Park, Secor Gardens (includes the University of Toledo), Southwyck, Wernert's Corner, Trilby, University Hills, Uptown, Warehouse District, Warren Sherman, Westgate, Westmoreland, Point Place
Perrysburg
Roachton, Lime City, Dowling / Five Points, City Center, Perrysburg South, Perrysburg Southeast, Perrysburg East, Belmont Farms Carrington Woods, Eckel Trace, Hawthorne, Horseshoe Bend, Meigs On The River, Riverbend Lakes, Saddlebrook, Sanctuary Meadows, The Sanctuary, Sanctuary In The Woods, Downtown, Rivercrest, Sheffield Place, The Hamlet, Riverside Park, Woodlands Park, Rossford
Maumee
Business Corner, Homewood / Monclova, Maumee Northwest, City Center, Maumee East, Thackeray Rd / Maple Tree Dr, Maumee North, 7th St / Craig Rd, Beebe Keep, Blystone, Breckenridge, Byrnwyck, Carisbrook, Clearwater, Crystal Ridge, Deer Valley, Fairfield Park, Fenwyck Arms, Fort Miami Add, Greycliffe at The Quarry, Homestead At The Quarry, Hunts Addn, Hyde Park, Manitou Grounds, Maumee Valley Garden, Meadwood Heights, Miami, Miami Blocks, Olde Farm, Riverside Common, Shadow Valley, Stillwater, Stonegate, The Glen Of Shadow V, The Quarry, Valley Stream, Village Of Fox Hollow, Waterside, Williams Way, Woodbrooke Condos, Wrenwood
Holland
Sandburr Corners / Spring Valley, Village Center / South Hill Park, Crissey, Holland West, Holland North, Holland-Sylvania, Wolfinger, The Shops at Fallen Timbers, The Strawberry Acres Park, Springfield Township, Haskins, Lambertville, Maumee, Monclova, Ottawa Hills, Perrysburg, Sylvania, Toledo, Waterville, Whitehouse
Sylvania
Sylvania Southwest, Mitchaw, Silica, Centennial, Sylvania West, Milton Oleander Park, Lourdes University, City Center, Sylvania South, Sylvania East, Downtown, Timberstone, Highland Meadows, North Sylvania, Holland, Ida, Lambertville, Monclova, Ottawa Hills, Ottawa Lake, Petersburg, Temperance
Rossford
Eagle Point Colony, Downtown Rossford, Colony Estates, Indian Hills, Crossroads
Bowling Green
Bowling Green West, Bowling Green Southwest, Bowling Green South, Bowling Green North, City Center, Bowling Green Southeast, Bowling Green State University, Westgate Homes, Asbury Hills, Meadowvale, Wintergarden Heights, Hull Prairie, Portage, Tontogany, Sugar Ridge, Scotch Ridge, Rudolph, Haskins, Weston, Jerry City, Pemberville, Grand Rapids - Tontogany, Haskins, Maumee, Neapolis, Perrysburg, Rudolph, Waterville, Weston, Whitehouse
Findlay
West Independence, West Park, Findlay East, Findlay North, Findlay South, Findlay Southeast, Findlay West, City Center / The University of Findlay, Allen, Big Lick, Blanchard, Eagle, Jackson, Liberty, Marion, Southwest, Downtown Findlay, Emory Adams Park, Riverside Park, West Park, Van Buren, Arcadia, Houcktown, Benton Ridge, McComb, Bairdstown, Vanlue, West Independence, North Baltimore, Arlington, Bloomdale - Cygnet, Carey, Fostoria, McComb, New Riegel, Rawson, West Millgrove, Wharton
Sandusky
Bogart / Wilmer, Bay View / Crystal Rock, Venice, Sandusky Southeast, Pipe St / Rohde St, Sandusky East, Sandusky North, MacArthur Park, Cedar Point, Ranch Wood, Venice, Lincolnshire, Fairview Lanes, Southgate Acres, Wilmer, Mineyahta-on-the Bay, Columbus Park, Bogart, Piccola, Marblehead, Bay View, Lakeside, Castalia, Weyers, Sandusky South, Fairview Lanes, Castilia
Fremont
Ballville, Wightmans Grove, Stony Prairie, Fremont East, Fremont South, City Center, Fremont Southeast, Clyde, Elmore, Green Springs, Helena, Lindsey, Oak Harbor, Old Fort, Port Clinton, Sandusky, Vickery
Fostoria
Arcadia, Fostoria East, Fostoria North, City Center
Defiance
Evansport, Ayersville, Arthur / Charloe, Defiance Southwest, Defiance West, Defiance College, City Center, Antwerp, Continental, Holgate, Ney, Oakwood - Grover Hill, Ridgeville Corners, Sherwood, Brunersburg, Ayersville, The Bend, Jewell, Junction, Standley, Rice, Florida
Huron
Bogart, Ceylon, Chaska Beach, Franklin Flats, Huron, Huron Township, Mitiwanga, North Palm Beach, Oberlin Beach, Ruggles Beach, Rye Beach, Shinrock
Lima
Central Lima, Lakewood West, Riverside North, Northside Lima, Westgate, Fifth Ward, Southside Lima, Eastside Lima, Dr. Martin Luther King, Jr., Hume / Oakview, Allentown / Kemp, Slabtown, Elida, Fort Shawnee, Cridersville, Rousculp / South Warsaw, Fort Shawnee West, Spencerville Rd / Shawnee Rd, Buckland, Cairo, Delphos, Gomer, Harrod, Lafayette, Spencerville, Wapakoneta, Waynesfield
Tiffin
Tiffin South, Swander/Heidelberg University, Tiffin West, Center, Tiffin Southwest, City Center/Tiffin University, Bascom, Melmore, Fort Seneca, Maple Grove, Mexico, New Riegel, Republic, Old Fort, Bettsville, Attica - Bloomville, Bucyrus, Fostoria, Sycamore
Columbus
Downtown, Arena District, Short North, German Village, Victorian Village, Olde Towne East, Clintonville, Franklinton, Linden, Harrison West, Westerville, Dublin, Gahanna, Hilliard, Upper Arlington, Worthington, Grove City, New Albany
Cleveland
Clark‑Fulton, Ohio City, Tremont, University Circle, Edgewater, Glenville, Broadway‑Slavic Village, MidTown, Cudell, Old Brooklyn, West Park, Lakewood, Parma, Euclid, Shaker Heights, Rocky River, Westlake
Cincinnati
Over‑the‑Rhine, Mt. Adams, Clifton, Oakley, East Walnut Hills, Hyde Park, Norwood, Blue Ash, Madeira, Sharonville, Wyoming, Pleasant Ridge, Northside, College Hill
Akron
Highland Square, Ellet, Goodyear Heights, Kenmore, Cuyahoga Falls, Stow, Fairlawn, Hudson, Tallmadge, Barberton
Dayton
Oregon District, South Park, Wright‑Patterson area, Kettering, Beavercreek, Centerville, Huber Heights, Oakwood, Tipp City
Parma
Parma Heights, Seven Hills, Brooklyn, Brook Park, Parma South, North Parma, Ridgewood
Canton
North Canton, Plain Township, Louisville, Avondale, Belden Village
Lorain
Sheffield Lake, Avon, Elyria, Oberlin, Amherst
Hamilton
Fairfield, Middletown, Ross, Oxford, Trenton
Youngstown
Boardman, Austintown, Canfield, Poland, Struthers
Springfield
Urbana, West Liberty, Mechanicsburg, Enon, South Charleston
Kettering
Centerville, Beavercreek, Dayton, Kettering North, Kettering South
Elyria
Lorain, Amherst, Avon, Oberlin, West Elyria, East Elyria
Middletown
Monroe, Trenton, Franklin
Newark
Heath, Granville, Johnstown, Hebron
Cuyahoga Falls
Hudson, Stow, Akron, Silver Lake
Dublin
Hilliard, Westerville, Gahanna, Worthington
Lakewood
Cleveland, Rocky River, Westlake
Mansfield
Ontario, Lexington, Shelby, Ashland, South End, Woodland
Southeast Michigan
Monroe, Lambertville, Temperance, Dundee, Blissfield, Adrian, Tecumseh, Hudson, Manitou Beach, Devils Lake, Hillsdale, Morenci
High Performance, Higher Praise // AMSOIL Reviews Straight from the Source
From coast to coast, AMSOIL Dealers are earning high marks from customers who know their engines. Whether it’s a daily driver in New York, a dirt bike in Arizona, or a diesel truck in Texas, real reviews are rolling in from every corner of the country — all praising the performance, protection, and reliability that AMSOIL delivers.
















