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AMSOIL Remote Bypass 

Oil Filtration Systems


A Closer Look at Bypass Filtration


If you rely on serious diesel power, AMSOIL diesel oils and bypass filtration systems provide the protection you need to fight wear and extend engine life.

AMSOIL Bypass Systems offer top-of-the-line protection
Bypass oil filtration features a secondary filter with the purpose of eliminating nearly all contaminants from engine oil. Bypass filters have high capacities and eliminate much smaller particles than full-flow filters. They reduce engine wear and increase oil volume, but their high efficiencies mean they also have higher restriction and must be used in conjunction with a full-flow filter.

How it Works
Bypass filters operate by filtering oil on a “partial-flow” basis. They draw approximately 10 percent of the oil pump’s capacity at any one time and trap the extremely small, wear-causing contaminants that full-flow filters can’t remove. Bypass filters have a high pressure differential, causing the oil to flow through them very slowly and allowing for the removal of smaller contaminants, including soot. It is called bypass filtration because the oil flows from the bypass filter back to the sump, bypassing the engine. This continual process eventually makes all the oil analytically clean, reduces long-term wear and can extend oil drain intervals.

AMSOIL Bypass Filtration Benefits
  • Significantly Extended Engine Life
The majority of engine wear is caused by particles in the 5-20 micron range. Because AMSOIL Ea® Bypass Filters effectively remove contaminants down to 2 microns, engines receive the ultimate in wear protection. Less engine wear keeps the engine in better condition, extending its life.
  • Efficient Small-Particle and Soot Removal
The high-efficiency Ea Bypass Filter element is 98.7 percent effective at removing particles down to 2 microns, helping extend engine life. It is also a very effective soot-removal device.
  • Reduced Maintenance Costs
AMSOIL Bypass Systems provide a dramatic increase in engine protection, helping avoid costly repairs associated with engine wear.
  • Improved Oil Cooling
By installing an additional filter, the engine system has the capacity to hold more oil. With increased oil capacity, the oil filtration system contains more fluid through which it can disperse heat from the engine. This allows the engine and the oil to run cooler.
  • Extended Drain Intervals
Ea Bypass Filters can help users extend their oil drain intervals. Make sure to use oil analysis when extending oil drain intervals.

Outstanding Protection at an Affordable Price
Competing single-remote bypass systems designed for Ford*, GM* and RAM turbodiesel vehicles range in price from $250 to more than $700, with an average largely over $450. Most AMSOIL Single-Remote and Dual-Remote Bypass Systems carry an MSRP below the market average.

Competing heavy-duty bypass systems range in price from $650 to more than $850. The premium-quality AMSOIL Heavy-Duty Bypass System (BMK30) and DUAL-GARD® Bypass System (BMK22) have MSRPs almost half the market average.

AMSOIL offers complete bypass systems for certain popular applications that include all components necessary for installation (including parts, hose, filters and installation instructions). We also offer universal bypass systems that can be customized with different additional parts to fit specific applications.

Easy Installation
AMSOIL Bypass Oil Filtration Systems are relatively easy to install and easy to maintain. Do-it-yourself installation instructions are provided.

Durable Construction
AMSOIL Bypass Systems and Ea Bypass Filters are built tough to withstand the most severe operating conditions.
Product Code: (Select Part Number)
AMSOIL Ea Bypass Oil Filters provide maximum filtration protection against wear and oil contamination. Working in conjunction with the engine's full-flow oil filter, AMSOIL Ea Bypass Filters operate by filtering oil on a "partial-flow" basis.

Product Code: BMK31-EA
Ford 6.0/6.4L Single-Remote Bypass System provides superior filtration performance for Ford 6.0/6.4L engines while working in conjunction with the engine's full-flow oil filter. This system connects to the engine through the filter housing and oil fill port. System includes mount, mounting hardware, EaBP90, hose and hose fittings. Note: Full-flow filter not included with this system.

Product Code: BMK32-EAGM 6.6L
Single-Remote Bypass System provides superior filtration performance for GM 6.6L engines while working in conjunction with the engine's full-flow oil filter. This system connects to the engine through a full-flow filter adapter and oil fill port. System includes mount, mounting hardware, EaBP90, hose and hose fittings. Note: Full-flow filter not included with this system.

Product Code: BMK33-EA
The Ford 6.7L Single-Remote Bypass System (BMK33) is designed for 2011-present Ford* Super Duty* 6.7L Diesel Pickups. It includes all components necessary for installation (including parts, hose, Ea Bypass Oil Filter and installation instructions), providing increased convenience and value.

Product Code: BMK34-EA
Cummins 5.9/6.7L Single-Remote Bypass System provides superior filtration performance for 2004 to current Cummins 5.9/6.7L engines while working in conjunction with the engine's full-flow oil filter. This system connects to the engine through a full-flow filter adapter and oil fill port. System includes mount, mounting hardware, EaBP90, hose and hose fittings. Note: Full-flow filter not included with this system.

Product Code: BMK21-EA
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: BMK30-EA
The AMSOIL Heavy-Duty Bypass System (BMK30) provides superior filtration performance for heavy-duty on- and off-road applications. It is designed specifically for the Ea Heavy-Duty Bypass Filter (EaBP120), bringing Ea synthetic technology to the heavy-duty market. System includes mount, mounting hardware, hose, hose fittings and the EaBP120 Bypass filter.

Product Code: BMK23-EA
The Universal Dual Remote Bypass provides superior filtration performance by combining the full-flow and bypass filters on a single mount. System includes mount, mounting hardware, hose and hose fittings. Note: The spin-on adapter, EaO26 full-flow oil filter, and a Bypass oil filter are each sold separately. EaBP120 will not work with this system. You must purchase the spin-on adapter that matches the filter thread size on your vehicle (see table below)

Product Code: BMK26-EA
The Dual Remote Bypass System provides superior filtration performance for 7.3L Ford PowerStroke diesel engines. System includes mount, mounting hardware, hose, hose fittings, spin-on adapter, EaO26 full-flow oil filter and EaBP100 Bypass filter.

Product Code: BMK27-EA
The Dual Remote Bypass System provides superior filtration performance for 6.6L GM Duramax diesel engines. System includes mount, mounting hardware, hose, hose fittings, spin-on adapter, EaO26 full-flow oil filter and EaBP100 Bypass filter. Note: This Bypass system can also be used on 1990's GM light-duty pickups equipped with the GM 6.5L diesel engine.

Product Code: BMK28-EA
The Dual Remote Bypass System provides superior filtration performance for 6.7L Ford PowerStroke diesel engines. System includes mount, mounting hardware, hose, hose fittings, spin-on adapter, EaO26 full-flow oil filter and EaBP100 Bypass filter.

Product Code: BMK22-EA
The Dual Remote Bypass System provides superior filtration performance and is ideal for engines with sump capacities greater than 20 quarts. The DUAL-GARD system links two AMSOIL Bypass filters together on one mount. 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 filters are sold separately. The EaBP120 will not work with this system.



Diesel engines need the toughest protection against the smallest particles. AMSOIL’s diesel engine oils and bypass filtration systems provide ultimate protection against wear and extend engine life.
Watch the video to learn more.
AMSOIL Warranty


AMSOIL guarantees the performance of its products, so you can be confident they perform as advertised. AMSOIL introduced the world’s first API-qualified synthetic motor oil and has since introduced a full line of industry firsts. For more than 40 years, AMSOIL synthetic lubricants have proven themselves in the lab, on the racetrack and on the highway.