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- Walker AIRSEP CD246
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Walker AIRSEP · Oil Control Components
Walker AIRSEP Parts (Oil Drain Checkvalve) -Part# CD246
Part number: CD246
$77.64
Available to order
Confirm compatibility before ordering.
Marine filtration components can vary by engine model and installation. Call 954-767-9000 if you need help identifying the correct part.
Marine filtration components can vary by engine model and installation. Call 954-767-9000 if you need help identifying the correct part.
Product Description
The Genuine AIRSEP Volume-Activated Oil Drain Check Valve (Walker CD246 / Cummins 3971073) is a critical component designed to ensure proper oil drainage and reliable performance in factory-installed AIRSEP crankcase ventilation systems. Built to withstand the demanding conditions of diesel engine rooms and enclosed engine compartments, this high-quality check valve delivers dependable operation in marine and industrial applications.
Engine compartments are exposed to extreme heat, repeated thermal cycling, oil vapors, and harsh operating conditions that can degrade critical components over time. Replacing worn AIRSEP components as part of your preventive maintenance program helps maintain system efficiency, protect your engine, and reduce the risk of unexpected failures.
Manufactured with a durable gold anodized finish, this oil-resistant check valve provides exceptional reliability, long service life, and consistent cycling performance. It is engineered to meet the specifications required by diesel engine manufacturers for original equipment (OEM) AIRSEP installations.
Features
Genuine AIRSEP replacement component
Walker Part Number: CD246
Cummins Part Number: 3971073
Volume-activated oil drain check valve
Durable gold anodized aluminum construction
Oil-resistant design for extended service life
High reliability with excellent cycle life
Meets OEM AIRSEP system specifications
1/4" NPT Female inlet
1/4" NPT Male outlet
Directional flow design for proper operation
Installation Guidelines
Proper installation is essential for reliable operation:
Install the valve as close to vertical as possible.
The installation angle should never exceed 30 degrees from vertical.
The etched flow arrow must point downward during installation.
Failure to install correctly may prevent the valve from operating as designed.
Compatibility
This check valve is used in AIRSEP systems installed on numerous Cummins marine diesel engines and serves as the primary functional valve within Walker AIRSEP Assembly MD105 (MD 105), which includes additional fittings and hardware.
Preventive Maintenance
Because AIRSEP components are continually exposed to heat, oil mist, and engine vibration, regular inspection and replacement of aging parts is recommended to maintain optimal crankcase ventilation performance, prevent oil carryover, and maximize engine reliability.
Whether you're servicing a commercial vessel, recreational boat, or industrial diesel engine, the Genuine AIRSEP CD246 Oil Drain Check Valve provides the OEM quality and dependable performance needed to keep your AIRSEP system operating correctly.
Engine compartments are exposed to extreme heat, repeated thermal cycling, oil vapors, and harsh operating conditions that can degrade critical components over time. Replacing worn AIRSEP components as part of your preventive maintenance program helps maintain system efficiency, protect your engine, and reduce the risk of unexpected failures.
Manufactured with a durable gold anodized finish, this oil-resistant check valve provides exceptional reliability, long service life, and consistent cycling performance. It is engineered to meet the specifications required by diesel engine manufacturers for original equipment (OEM) AIRSEP installations.
Features
Genuine AIRSEP replacement component
Walker Part Number: CD246
Cummins Part Number: 3971073
Volume-activated oil drain check valve
Durable gold anodized aluminum construction
Oil-resistant design for extended service life
High reliability with excellent cycle life
Meets OEM AIRSEP system specifications
1/4" NPT Female inlet
1/4" NPT Male outlet
Directional flow design for proper operation
Installation Guidelines
Proper installation is essential for reliable operation:
Install the valve as close to vertical as possible.
The installation angle should never exceed 30 degrees from vertical.
The etched flow arrow must point downward during installation.
Failure to install correctly may prevent the valve from operating as designed.
Compatibility
This check valve is used in AIRSEP systems installed on numerous Cummins marine diesel engines and serves as the primary functional valve within Walker AIRSEP Assembly MD105 (MD 105), which includes additional fittings and hardware.
Preventive Maintenance
Because AIRSEP components are continually exposed to heat, oil mist, and engine vibration, regular inspection and replacement of aging parts is recommended to maintain optimal crankcase ventilation performance, prevent oil carryover, and maximize engine reliability.
Whether you're servicing a commercial vessel, recreational boat, or industrial diesel engine, the Genuine AIRSEP CD246 Oil Drain Check Valve provides the OEM quality and dependable performance needed to keep your AIRSEP system operating correctly.
Application Guide
Engine Compatibility & Fitment
Use this information as an application guide and confirm the existing equipment model, serial number and part number before ordering.
System Fitment
- Oil Drain Checkvalve
Fitment Notes
Replacement service component for compatible Walker AIRSEP systems. Match the existing component part number and connection dimensions before ordering.
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When purchasing parts for a marine engine, generator, transmission or filtration system, choosing the correct product is essential. Hall Engine Company provides customers with more than access to quality marine products—we also offer the experience and personal service needed to help make the right selection.
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Expert AssistanceHelp selecting the correct part
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