Oil Bypass Filter Installation Options

Easier Professional Installation with these Aluminum Billet Oil Fill and Oil Filter Caps for BMK21 and BMK22 By-Pass Filtration Systems on turbo diesel engines

BMK27 AMSOIL Dual Remote Bypass Filter Mount for the Duramax
BK309 Dual Bypass Filter Mount in the BMK-27 holds two filters

With exclusive nanofiber media, AMSOIL’s Dual Remote Bypass Filtration systems have easily been the best performing oil filtration system on the market for more than 5 years.  And we love that it’s one of the least expensive and most robust!  With these systems you mount the dual nanofiber filter package anywhere, and twin super-hoses connect to the filter adaptor that spins on in place of the full-flow oil filter.  These dual bypass filter kits for most engines provide a clean and simple installation that requires no OEM system or part changes, and is easily moved to a new vehicle.

Nanofiber AMSOIL Bypass Filter Options
BMK21 (left), Dual-Remote BMK23 (center), and the BMK22 (right) are 3 common AMSOIL universal bypass oil filter kits

Billet Aluminum components for custom AMSOIL bypass oil filter installations

But for some applications, whether due to engine filter design, engine compartment layout, upgrade or show-vehicle projects, the Dual Remote filtration system isn’t always a good option.  So we now offer these beautiful and functional billet aluminum component options to design and install your perfect solution.

The three most popular diesel engines: the Ford 6.0L Power Stroke™, the Dodge 5.9L Cummins and the General Motors 6.6L Duramax all get more installation options for AMSOIL BMK21 or BMK22 By-Pass Filtration Systems by using these professional quality billet aluminum components. Engine compartments are becoming increasingly cramped, leaving little room for after-market additions and improvements. The BMK21 is a single remote by-pass filter system that fits into much smaller spaces than the AMSOIL Dual-Remote By-Pass System.  The BMK22 is a dual bypass filter that some owners prefer over the single BMK21, to get maximum oil purity in large oil sumps such as the 15 qt  sump on the Dodge Cummins 5.9L turbo diesel engine.AMSOIL Bypass Filter Installation Library Photos

Ford 6.0L Power Stroke™ Diesels

To ease installation of the BMK21 on 2003 and later model Ford pickups equipped with the 6.0L Power Stroke™ diesel engine, AMSOIL provides the new Aluminum Billet Oil Filter Cap (BK1101), the Aluminum Billet Oil Fill Cap (BK1102) and the 90-degree JIC Elbow (BP242). These new high-quality billet aluminum caps replace the original equipment manufacturer (OEM) filter cap and oil fill cap. The new caps have holes tapped in them that accept the JIC elbows for hose connectors.

Dodge 5.9L Cummins Diesels 

To ease installation of the BMK21 or BMK22 in 2004 and later model Dodge pickups equipped with the 5.9L Cummins diesel engine, AMSOIL offers the new 1/8″ NPT – 1/4″ JIC fitting (BP241), the Aluminum Billet Oil Fill Cap for Dodge 5.9L Cummins diesels (BK1301) and the 90-degree JIC Elbow (BP242). The BP241 fits onto the existing plug on top of the OEM full-flow filter mount, and the addition of the BK1301 eases the installation of the oil return line.

General Motors 6.6L Duramax Diesels

To provide GM Duramax owners the same ease of installing the BMK21, AMSOIL is now offering an oil filter “Sandwich” adapter (BK1201). The Sandwich adapter is an anodized billet aluminum adapter that screws on to the present full flow oil filter nipple located on the engine block. The full flow filter is then simply spun on to the adapter. The Sandwich adapter has an orifice to provide high-pressure oil feed for the BMK21. Like the other diesel applications, AMSOIL now offers an Aluminum Billet Oil Filler Cap for (BK1202) to ease the installation of the oil flow from the BMK21 back to the engine.Anodized Billet Aluminum Oil Bypass Parts

To complete a BMK21 or BMK22 installation, the following components must be purchased separately:

1. Aluminum oil filter Sandwich Adapter with o-ring (BK1201)
2. Aluminum Billet Oil Filler Cap for GM Duramax (BK1202)
3. Two 90 degree JIC Elbows (BP242)
4. Single Remote By-pass system (BMK11)
5. By-pass filter (EaBP90, EaBP100, or EaBP110, as space dictates)


DODGE RAM Cummins Diesel Owners Page
Ford PowerStroke Diesel Owners Page
Duramax Diesel Owners Page

AMSOIL United States and Canada the Filtration and Lubrication Gold Standards

This new pdf Diesel Power brochure covers: important products and information for all diesel-powered vehicles.