By-Pass Only Units - Mounting Kit
BMK21 Spin-On By-Pass Filter (1 By-Pass Element)
BMK22 Dual-Gard By-Pass Filter Mounting Kit (2 By-Pass Element)
BMK30 Heavy Duty By-Pass System w/Spin-On (1 By-Pass Element)

Dual Remote - By-Pass & Full Flow Combo Units - Mounting Kit
BMK23 Dual Remote Filtration System (1 By-Pass & 1 Full Flow Element)
BMK-25Ea (Cummins) Dual Remote (1 By-Pass & 1 Full Flow Element)
BMK-26Ea (International) Dual Remote (1 By-Pass & 1 Full Flow Element)
BMK-27Ea (Duramax) Dual Remote (1 By-Pass & 1 Full Flow Element)
BMK-18 Marine Dual Remote (1 By-Pass & 1 Full Flow Element)

Filter Elements By-Pass & Full Flow
AMSOIL By-Pass Filter Elements EaBP
AMSOIL Full-Flow Oil Filter Elements EaO

- Filtration Systems -Application Guide

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BK-21 Spin-On By-Pass Filter
Installation and Servicing Instructions - pdf

Auto/Light Truck and Marine

Single Element - 1 By-Pass Filters
Includes mount, hose and fittings. Order filter separately.

AMSOIL Spin-On By-Pass Filters offer the ultimate in filtration technology. Engine wear is caused by dirt particles larger than 5 microns. The AMSOIL By-Pass Oil Filter removes particles less than 1 micron, virtually eliminating engine wear. AMSOIL By-Pass Oil Filters filter all the oil in a six-quart system in about five minutes at an average engine speed equivalent to 45 mph.

BK-22 Dual-Gard By-Pass Filter
Installation and Servicing Instructions - pdf

Large truck, stationary engines, compressors, forestry, agriculture, marine, mining

2 Elements - 2 By-Pass Filters
Dual mount only,does not include filters, hose or fittings.

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. The BMK-12 links two AMSOIL By-Pass Filter Elements together for engines with sump capacities greater than 20 quarts. It draws approximately 10 percent of the oil pump’s capacity at any one time and typically filters all the oil in the system several times an hour, so the engine continuously receives analytically clean oil.

BK-23 Dual Remote Oil Filtration System
Installation and Servicing Instructions - pdf

Auto/Light Truck and Marine

2 Elements - 1 Full Flow and 1 By-Pass Filters
Includes mount, hose and fittings. Order filters separately.

The AMSOIL Dual Remote Oil Filtration System converts an engine’s full-flow oil filter into a full-flow and by-pass oil filtration system. The dual element mount attaches to the Full-Flow Oil Filter port providing full flow oil filtration as well as By-Pass filtration in a single remote mount unit.

BK-25ea, 26ea,27ea, Dual Remote System
Installation and Servicing Instructions - pdf

BMK-25Ea (Cummins)
BMK-26Ea (International)
BMK-27Ea (Duramax)

2 Elements - 1 Full Flow and 1 By-Pass Filters
Includes mount, hose and fittings. Order filters separately.

The AMSOIL Dual Remote Oil Filtration System converts an engine’s full-flow oil filter into a full-flow and by-pass oil filtration system. The dual element mount attaches to the Full-Flow Oil Filter port providing full flow oil filtration as well as By-Pass filtration in a single remote mount unit. Filter Selection EaBP-110, EaBP-100, EaBP-90

BMK30 Heavy Duty By-Pass System w/Spin-On (1 By-Pass Element)
Installation and Servicing Instructions - pdf

Heavy-Duty On- and Off-road Applications

1 Element Spin-On, By-Pass Filter System
Includes mount, hardware, hose and fittings. Order filters separately.

The AMSOIL Heavy-Duty By-Pass Filtration System (BMK30) provides superior filtration performance for heavy-duty on- and off-road applications. The BMK30 is designed specifically for the Heavy-Duty Ea By-Pass Filter (EaBP120), bringing Ea synthetic nanofiber technology to the heavy-duty market.

BMK-18 Marine Dual Remote System
Installation and Servicing Instructions - pdf

Recreational and Commercial Marine Applications
that use inboard or inboard/outboard stern drive engines.

2 Elements - 1 Full Flow and 1 By-Pass Filters
Includes mount, hardware, hose and fittings. Order filters separately.

The AMSOIL Dual Remote Oil Filtration System converts an engine’s full-flow oil filter into a full-flow and by-pass oil filtration system. The dual element mount attaches to the Full-Flow Oil Filter port providing full flow oil filtration as well as By-Pass filtration in a single remote mount unit.

Filter Element Selection

8 different size AMSOIL Full-Flow Oil Filters and 4 different AMSOIL By-Pass Filters may be used with the mount. Select a full-flow filter that is equivalent or larger than the one originally installed on your vehicle. The larger the filter used, the greater the filtration capacity and the longer the filter life. The By-Pass filter should be the largest for which space is available. Use the dimension information below as well as the data in diagram A to assist you in selecting your filters.

*Most commonly used filters