Bypass Oil Filter

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Bypass Kit
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Consumers have the freedom to choose other than OEM branded lubricants without fear of voiding the original limited or implied warranty. Amsoil synthetic lubricants and performance products are tough, reliable, long lasting, and save you time and money with the peace of mind that your vehicles/ equipment will last longer. About Warranty Secure

Bypass Oil Filters

How Bypass Filters Works

Bypass oil filters function as a secondary filtration with the purpose of eliminating soot and small particle contaminants from motor oil. AMSOIL filter elements offer high holding capacities with a service life of one to two years, continuously removing soot and other particles too small for the full-flow filter. Continuously clean engine oil means oil lasts longer in service and engines remain in like new condition longer. Bypass filters work with a higher flow restriction to returning analytically clean oil to the engine and work in conjunction with a full-flow filter.

AMSOIL Bypass Oil Filter

Bypass filters operate by filtering oil on a “partial-flow” basis. They draw approximately 10 percent of the oil pump capacity for collecting the extremely small contaminants which are too small for the full-flow filter. Bypass filters have a high pressure differential, causing the oil to filter very slowly allowing for the removal of soot and small particle contaminants. It is called bypass filtration because the oil flows from the engine oil pressure to bypass filter and back to the sump, temporarily bypassing the engine. This continual process eventually cleans the entire oil system making it analytically clean with an absolute efficiency of 98.7 percent at two microns.

Bypass Filters Provide Three Basic Functions

  • Remove smaller particle contaminants beyond the ability of the full-flow filter
  • Higher filtration efficiency, contaminants remain trapped in the bypass filter
  • Element is able to remain in service for extended time or mileage

Efficient 98.7 percent at two microns
Equipment constantly runs on clean oil
Increased engine efficiency
Significantly extend engine life
Increased filtration capacity and life
Improved oil cooling
Increased fluid system capacity
Extended drain intervals

EaBP Elements Service Life

AMSOIL stock code > EaBP90 EaBP100 EaBP110 EaBP120
Service Time (year) 2 year 2 year 2 year 1 year
Service Time (hours) 600 800 1200 1800
Service mileage/

60,000 miles
96,500 kms


70,000 miles
112,600 kms


80,000 miles
128,700 kms


120,000 miles
193,000 kms

EaBP Element Dimensions
Height 5.78″ 7.25″ 10.35″ 12.1″
Diameter 4.25″ 4.25″ 4.25″ 5.35″

Pricing Canada and USA – Order and delivery

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Bypass Oil Filter

Engineered for Outstanding Oil Filtration Efficiency

Higher Efficiency

AMSOIL Bypass Filters have an absolute efficiency of 98.7 percent at two microns. This highly efficient filter provides exceptional filtration performance, removing all the particles known to reduce engine life.

Superior Construction

AMSOIL Bypass Filters have a marine powder-coated exterior and an anti-corrosion coated base plate to provide excellent corrosion protection. AMSOIL Bypass Filters feature a nitrile HNBR gasket, an orange silicone anti-drain valve and proprietary high-efficiency media

Soot Removal

AMSOIL has designed a high-efficiency bypass filter element that is also a soot removal device. AMSOIL Bypass Filters use proprietary high-efficiency media. This media removes soot particles two microns and larger, eliminating abrasive wear from soot agglomeration.

Increased Oil Capacity

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

Filter Application

Type of unit Stock
Oil Needed
Single Spin-On
Element(use with Single-Remote or
DUAL-Remote system)
EABP90 1 qt. up to 15 qt. Pleasure Vehicles,
1/2 Ton to 1-Ton Trucks and
small Commercial
EABP100 1.5 qt. up to 18 qt.
EABP110 2 qt. up to 24 qt.
DUAL Spin-On
Element(use with BMK22
2 qt. 15 – 30 qt. Large Trucks,
Construction, Farm,
Industrial Equipment
3 qt. 15 – 36 qt.
4 qt. 15 – 48 qt.
Spin-On Element

(use with
BMK30 Heavy-Duty Bypass

EABP120 4 qt. 24 – 60 qt. Large Trucks,
Construction, Farm,
Industrial Equipment

The primary benefits of an AMSOIL Bypass Filter System is to reduce mechanical wear, remove soot, control cylinder deposits and reduce lubricant replacement cost. Adding a bypass oil filter is a simple and most effective solution to keep any brand of engine oil clean. Clean oil can not only remain in service longer but also maintain engine efficiency and performance.

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