Exhaust Manifold Seal
The PAI Industries 642015OEM Exhaust Manifold/EGR Cooler Seal is a spiral internal retaining ring, 2.730" free outer diameter, precisely replacing OEM Detroit Diesel 23533911 (Freightliner DDE23533911). Engineered for Series 60 engines, this USA-manufactured, ISO-certified replacement ensures a tight, leak-free seal. Backed by PAI’s 2-year unlimited mileage warranty and available through Wofford Truck Parts, it’s an essential component for reliable exhaust / EGR maintenance.
$37.71
Specifications
The PAI Industries Exhaust Manifold / EGR Cooler Seal (Part 642015OEM) is a specialized internal spiral retaining ring engineered for Detroit Diesel Series 60 engines. With a free outer diameter of 2.730" (69.34 mm), a width of .110" (2.79 mm), and thickness of .063" (1.60 mm), it serves as a direct OEM replacement for Detroit Diesel part 23533911 and Freightliner DDE23533911. It is also a component used in assembly of part 681132OEM (23533949) as part of the overall exhaust manifold setup.
Manufactured in ISO 9001-certified facilities in the USA, this genuine PAI part includes a 2-year unlimited mileage warranty for added peace of mind. It ensures tight sealing in the exhaust system and EGR cooler interface, delivering durability and OEM-level performance through continuous temperature and pressure cycles.
Compatibility
Freightliner – FLD (1987–2007), Century Class (1996–2010), Columbia (2000–2011), Coronado (2001–2011), Argosy (1999–2011)
Kenworth – T600 (1987–2007), T800 (1987–2011), W900 (1987–2011)
Peterbilt – 377 (1987–2000), 378 & 379 (1987–2007), 386 (2006–2011), 388 (2008–2011)
Western Star – 4700 & 4900 (1990s–2011)
Sterling – Acterra & A-Line (1997–2010)
International / Navistar – select transit/line-haul models (1987–2011)
Bus / Coach / RV / Specialty – various units using Series 60 engines (1990s–2011)
Alternative Part Numbers
Freightliner DDE23533911
PAI642015OEM
