PAI 641349 | Detroit DD15 Crankcase Filter / Oil Separator

PAI 641349 Detroit DD15 Crankcase Filter / Oil Separator

The PAI 641349 is a heavy-duty replacement crankcase filter and oil separator assembly designed for compatible Detroit Diesel DD13 and DD15 engines. This component is designed to separate oil mist from crankcase gases while maintaining proper crankcase ventilation.

The PAI 641349 is an aftermarket replacement for Detroit Diesel OEM A4720108262 and is also cross-referenced to EA4720108262. Proper crankcase ventilation helps control oil carryover and supports the operation of the engine's ventilation system.

Product Specifications

• Brand: PAI Industries
• PAI Part Number: 641349
• Product Type: Crankcase Filter / Oil Separator Assembly
• Application: Detroit Diesel DD13 / DD15
• OEM Reference: A4720108262
• Additional Cross Reference: EA4720108262
• System: Crankcase Ventilation
• Function: Oil Mist Separation / Crankcase Ventilation
• Construction: Heavy-Duty Aftermarket Replacement

Detroit DD15 Crankcase Filter Application

The PAI 641349 is designed for compatible Detroit DD15 crankcase ventilation systems. The corresponding OEM A4720108262 is cataloged as a crankcase breather/oil separator assembly for Detroit DD13 and DD15 engines.

OE part number A4720108262 is part of a crankcase breather/oil separator supersession family that includes earlier Detroit part numbers. Later applications may use different versions of the separator assembly, so the existing OEM part number should be verified before ordering.

Crankcase Ventilation & Oil Separation

The crankcase ventilation system manages blow-by gases produced during engine operation. The oil separator helps remove suspended oil mist from those gases before they continue through the ventilation system.

A properly functioning separator helps control oil carryover and supports clean crankcase ventilation. A restricted, damaged, or improperly matched separator can contribute to abnormal crankcase pressure and increased oil carryover.

OEM & Cross Reference Numbers

The primary OEM reference for PAI 641349 is Detroit Diesel A4720108262. It is also cross-referenced to EA4720108262.

Other numbers in the A4720108262 oil-separator supersession family include A4720107662, A4720106662, A4720105262, A4720104262, A4720102862, and A4720102362. These numbers represent different versions or earlier applications in the crankcase ventilation assembly family and should not automatically be treated as interchangeable without confirming fitment.

Why Choose PAI 641349?

• Designed for compatible Detroit DD13 and DD15 applications
• Replacement for OEM A4720108262
• Crankcase ventilation oil separator assembly
• Helps separate oil mist from crankcase gases
• Heavy-duty aftermarket construction
• PAI Industries replacement part
• Suitable for heavy-duty diesel engine service

Fitment Note

Verify the OEM part number before ordering. The PAI 641349 corresponds to Detroit Diesel A4720108262 / EA4720108262. Because Detroit DD13 and DD15 engines have multiple crankcase breather and oil-separator configurations, verify the engine model, production date, VIN, or engine serial number when fitment is uncertain.