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Universal Single-Remote Bypass System

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Universal Single-Remote Bypass System

Universal Single-Remote Bypass System provides superior filtration performance while working in conjunction with the engine's full-flow oil filter. This system connects to the engine through a pressurized oil port. System includes mount, mounting hardware, hose and hose fittings. Note: The EaBP bypass oil filter is sold separately. EaBP120 will not work with this system.

Product Code: BMK21-EA Ordering Instructions
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See Bypass Installation Samples

The Ea Bypass Oil Filter (EaBP) provides the best possible filtration protection against wear and oil degradation. Working in conjunction with the engine's full-flow oil filter, the AMSOIL Ea Bypass Filter operates by filtering oil on a "partial-flow" basis. It draws approximately 10 percent of the oil pump's capacity at any one time and traps the extremely small, wear-causing contaminants that full-flow filters can't remove. The AMSOIL Ea Bypass Filter typically filters all the oil in the system several times an hour, so the engine continuously receives analytically clean oil.

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Typical Installation Diagram for BMK21 Kit.

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See the Bypass Replacement Parts Lists

New Aluminum Billet Oil Fill and Oil Filter Caps for BMK21 Universal Single-Remote Bypass System

AMSOIL offers Bypass components (sold separately) to ease the installation of the BMK21 Universal Single-Remote Bypass System in three popular diesel engines: the Ford 6.0L Power Stroke™, the Dodge 5.9L Cummins and the General Motors 6.6L Duramax.

Engine compartments are becoming increasingly cramped, leaving little room for after-market additions and improvements. The BMK21 is a single remote bypass filter system that fits into much smaller spaces than the AMSOIL Dual-Remote Bypass System.

Ford 6.0L/6.4L Power Stroke™ Diesels
To ease installation of the BMK21 on 2003 and later model Ford pickups equipped with the 6.0L and 6.4L Power Stroke™ diesel engines, AMSOIL offers the new Aluminum Billet Oil Filter Cap (BK1101), the Aluminum Billet Oil Fill Cap (BK1102) and the 90-degree JIC Elbow (BP242, two recommended) (all sold separately). 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/6.7L Cummins Diesels
To ease installation of the BMK21 in later model Dodge pickups equipped with the 5.9L and 6.7L Cummins diesel engine, AMSOIL offers the Aluminum Billet Oil Fill Cap for 2004-current Dodge 5.9L Cummins diesels (BK1303), for 6.7L Cummins engines use (BK1303), and the 90-degree JIC Elbow (BP242) (all sold separately). Included in the BMK21 is a BP208 fitting that fits onto the existing plug on top of the OEM full-flow filter mount, and the addition of the BK1303 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 flowfrom the BMK11 back to the engine. To complete an 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 Bypass system (BMK21)
  5. Bypass filter (EaBP90, EaBP100, or EaBP110, as space dictates) (all sold separately)

Higher Efficiency
AMSOIL EaBP Filters have an efficiency of 98.7 percent at two microns. At normal operating RPMs the EaBP Filter will filter all of the oil in a typical five quart sump in less than 10 minutes.

Superior Construction
The superior construction of AMSOIL EaBP Filters provides better sealing and increased longevity along with superior corrosion resistance. AMSOIL EaBP Filters have a marine powder coated exterior; and their zinc-dichromate base plates increase rust protection. EaBP Filters have a nitrile HNBR gasket and an orange silicone anti-drain valve. The two stage pleated and layered cellulose/full synthetic media has an efficiency rating of 98.7 percent at two microns.

Filter Service Intervals
Ea Bypass Filters offer long service life. Do not exceed the limits listed in the chart below.

Time2 years2 years2 years

Increased Oil Capacity
The increased fluid system capacity and filtration life provides improved oil cooling and ensures that equipment constantly runs on clean oil. Engine efficiency is increased, providing extended engine life.

Soot Removal
AMSOIL has designed a high-efficiency Bypass filter element that is also a soot removal device. AMSOIL Ea Bypass Filters use a synthetic/cellulose sandwiched media. The inner layer of the element is composed of a highly efficient cellulose media covered with a full synthetic media outer layer. These filters remove 39 percent of soot contaminants less than two micron. Soot removal efficiency increases approximately 10 to 14 percent when the EaBP Filter is used in conjunction with a standard full-flow filter.

Bypass Filtration Benefits

  • Dramatically Extended Drain Intervals
  • Improved Oil Cooling
  • Increased Filtration Capacity and Life
  • Increased Fluid System Capacity
  • Efficient Small Particle and Soot Removal
  • Significantly Extended Engine Life
  • Equipment Constantly Runs on Clean Oil
  • Increased Engine Efficiency
  • Remove Particles Less Than Two Micron
Packaging Information
Code Part Number Unit of Measure Product
BMK21-EA BMK21 Each Universal Single-Remote Bypass System