Detroit Diesel Lower Rocker Cover Gasket – 23511991 (Series 60 LGR Groove)

Keep your Detroit Diesel Series 60 engine properly sealed with the Detroit Diesel 23511991 Valve Cover Gasket. This gasket is designed for the rocker/valve cover assembly and helps prevent oil leaks between the cover sections.

Detroit Diesel part number 23511991 is used on Series 60 engines, including 11.1L, 12.7L, and 14.0L applications with the applicable two-piece rocker cover configuration. The gasket is designed for the lower-to-upper/intermediate rocker cover sealing surface.

Product Details

• Brand: Detroit Diesel
• Detroit Part Number: 23511991
• Product Type: Valve Cover / Rocker Cover Gasket
• Engine Family: Detroit Diesel Series 60
• Engine Sizes: 11.1L, 12.7L, 14.0L
• Application: Two-piece rocker cover
• Gasket Thickness: Approximately 0.186"
• Circumference: Approximately 106.68"
• Position: Lower to upper/intermediate rocker cover
• Condition: New

Cross-Reference Numbers

Common cross-reference numbers include:

• Detroit Diesel: 23511991
• DDE: 23511991
• Interstate-McBee: A-23511991
• MAHLE: VS50728
• PAI: 631283

Important: Always verify the engine serial number and rocker-cover configuration before ordering. Series 60 engines use several different rocker/valve cover gasket designs.

Fits / Applications

Commonly associated with:

• Detroit Diesel Series 60 11.1L
• Detroit Diesel Series 60 12.7L
• Detroit Diesel Series 60 14.0L
• Freightliner applications
• Kenworth applications
• Peterbilt applications
• Western Star applications
• Other heavy-duty vehicles and equipment using the applicable Detroit Series 60 engine