NEW AMSOIL Preferred Customer Program

Ea® Bypass Oil Filter

Ea® Bypass Oil Filter Product Image

Ea® Bypass Oil Filter

Engineered for Outstanding Oil Filtration Efficiency

AMSOIL Ea Bypass Oil Filters provide maximum filtration protection against wear and oil degradation. 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: EABP90-EA Ordering Instructions
Part Number:
Unit of Measure:
Retail Price (USD):

They draw approximately 10 percent of the oil sump's capacity at any one time and trap the extremely small, wear-causing contaminants that full-flow filters can’t remove. AMSOIL Ea Bypass Filters typically filter all of the oil in the system several times an hour, so the engine continuously receives analytically clean oil.

Higher Efficiency
AMSOIL Ea 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 Ea Bypass Filters have a marine powder-coated exterior and a zinc-dichromate base plate to provide excellent corrosion protection. Ea Bypass Filters feature a nitrile HNBR gasket, an orange silicone anti-drain valve and two-stage pleated and layered cellulose/full-synthetic media.

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

2 years
2 years
2 years
1 year

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. According to ISO 23556 testing, Ea Bypass Filters remove 39 percent of soot contaminants less than one micron.

Bypass Filtration Benefits

  • Significantly extended engine life
  • Efficient removal of small particles and soot
  • Removal of particles less than one micron
  • Increased engine efficiency
  • Improved oil cooling
  • Helps maintain oil viscosity
  • Reduces unscheduled downtime
  • Reduces operational costs
  • Increased fluid system capacity
  • Increased filtration capacity and life
  • Environmentally friendly
  • Extended drain intervals

AMSOIL Bypass Filter Application Information

Type of UnitStock NumberCrankcase CapacitybApplications

(Used with BMK21 or any DUAL REMOTE SYSTEM)

EaBP90up to 9 qt.Pleasure Vehicles, Light Trucks and Smaller Commercial Applications
EaBP100up to 15 qt.
EaBP110up to 21 qt.


(Used with BMK22 DUAL-GUARD)

(2) EaBP9015 to 18 qt.Large Trucks, Construction, Farm and Industrial Equipment
(2) EaBP10015 to 30 qt.
(2) EaBP11015 to 42 qt.
SPIN-ON ELEMENT (Used with BMK30 Heavy-Duty Bypass System)EaBP12024 to 60 qt.Large Trucks, Construction, Farm and Industrial Equipment

a. Make sure to check oil level with engine oil dipstick to ensure proper level. This additional volume is an estimate and should be properly evaluated using the dipstick.

b. Filters can be used on sumps of larger capacity but may require more frequent replacement.

EaBP Filter Sizes

1. Special adapters and hardware may be required for some installations.
2. Contact AMSOIL INC. Technical Services for instructions before installing on vehicles with cast aluminum oil pans.

AMSOIL products are backed by a Limited Liability Warranty. For complete information visit

For detailed typical technical properties, download the product data bulletin.

Packaging Information
Code Part Number Unit of Measure Product
EABP90-EA EABP90 Each Absolute Efficiency Bypass Filter
EABP100-EA EABP100 Each Absolute Efficiency Bypass Filter
EABP110-EA EABP110 Each Absolute Efficiency Bypass Filter
EABP120-EA EABP120 Each Absolute Efficiency Bypass Filter