
Filtration Systems Application Guide
See the By-Pass Replacement Parts Lists
See customer submitted By-pass installation photos here
PRODUCT DESCRIPTION
The Ea By-Pass 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 By-Pass 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.
![]() |
|
| By-Pass Filter Mounts and Instructions | |||
![]() |
|||
|
|
||
|
BMK23, 25, 26 & 27 |
|
||
|
New Aluminum Billet Oil Fill and Oil Filter Caps for BMK21 By-Pass Filtration System
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.
Ford 6.0L Power Stroke™ Diesels
Dodge 5.9L/6.7L Cummins Diesels
General Motors 6.6L Duramax Diesels 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 BMK11 back to the engine. To complete an installation, the following components must be purchased 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.
Longer Lasting
When used in conjunction with AMSOIL motor oil and an AMSOIL EaO
or Donaldson Endurance™ filter, the EaBP should be changed every
other full-flow filter change up to 60,000 miles. When used with
other brands of motor oil or full-flow filters, the EaBP Filter should
be changed every other full-flow filter change. AMSOIL recommends
using oil analysis when extending oil drain intervals.
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
by-pass filter element that is also a soot removal
device. AMSOIL Ea By-Pass 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 one micron.
Soot removal efficiency increases approximately
10 to 14 percent when the EaBP Filter is used in conjunction with a standard full-flow filter.
By-Pass 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 One Micro
Dual Remote Filter System
The AMSOIL Dual Remote Oil Filtration System
converts an engine’s full-flow oil filter system into
a full-flow/by-pass oil filtration system by attaching
an AMSOIL Full-Flow Oil Filter and AMSOIL
Spin-On By-Pass Oil Filter onto a remote mount.
The Dual Remote System provides superior filtration efficiency, increased oil capacity and
improved oil filtration accessibility. See the G1092 brochure for more info on the Dual Remote Filtration System.
![]() |
|
|
|
|
| AMSOIL By-Pass Filter Replacement Chart | |||||
| Type of Unit | Stock Number | Size (Approx.) | Additional Oil Needed | Crankcase Capacity | Applications |
| SINGLE
SPIN-ON ELEMENT
(Used with BMK21 or any DUAL REMOTE SYSTEM) |
EaBP90 | Diam. = 4.5 in. Height = 6 in. With Mnt. = 8 in. |
1 qt. | up to 9 qt. | Pleasure Vehicles, Light Trucks and Smaller Commercial Applications |
| EaBP100 | Diam. =
4.5 in. Height = 8 in. With Mnt. = 10 in. |
1.5 qt. | up to 15 qt. | ||
| EaBP110 | Diam. =
4.5 in. Height = 10 in. With Mnt. = 12 in. |
2 qt. | up to 21 qt. | ||
| DUAL
SPIN-ON ELEMENT
(Used with BMK22 DUAL-GARD) |
(2) EaBP90 | Diam. =
5 in. Height = 5.8 in. With Mnt. = 8 in. |
2 qt. | 15 to 18 qt. | Large
Trucks, Construction, Farm and Industrial Equipment
(minimum sump capacity = 15 qt.) |
| (2) EaBP100 | Diam. =
5 in. Height = 7.3 in. With Mnt. = 10 in. |
3 qt. | 15 to 30 qt. | ||
| (2) EaBP110 | Diam. =
5 in. Height = 10.4 in. With Mnt. = 12 in. |
4 qt. | 15 to 42 qt. | ||
| SPIN-ON ELEMENT
(Used with BMK30 |
(1) EaBP120 | Width =
5.35 in. Length = 12.12 in. Height = 17.5 in. |
4 qt. | 15 to 42 qt. | Large Trucks, Construction, Farm and Industrial Equipment, (minimum sump capacity = 15 qt.), the BMK30 kit can be mounted in series for sump capacities greater than 42 quarts. |
|
Normal Service Life:When
used in conjunction with AMSOIL motor oil and an EaO or Donaldson
Endurance filter, the EaBP should be changed every other full flow
filter change up to 60,000 miles. When used with other brands of motor
oil or full flow filters, the EaBP filter should be changed every other
full flow filter change. AMSOIL recommends using oil analysis when
extending oil drain intervals.
|
|||||
a. Filters can be used on sumps of larger capacity but then require more frequent replacement. Full details on service life included with filter installation instructions
NOTES:
1. Special adapters and hardware may be required for some installations. A universal mounting bracket is included with the kit, however, custom brackets may be required depending on your vehicle's equipment options or personal preferences in mounting locations."
2. Contact AMSOIL INC. Technical Service for instructions before installing on vehicles with cast aluminum oil pans. Or call (715) 399-TECH (8324).
|
||||||||||||||||||||||
|
||||||||||||||||||||||