Engineered for Leak-Free Oil Pan Mounting: The DDE 23522281 Oil Pan Isolator Bolt Assembly. This is a 10 pack of genuine DDE 23522281 Oil Pan Isolator Bolt Assembly, a highly specialized fastener crucial for maintaining the sealing integrity of the oil pan on Detroit Diesel Series 60 (S60) engines. Unlike standard bolts, this assembly incorporates a dampening sleeve/grommet designed to isolate the oil pan from engine vibration. The 23522281 assembly utilizes an M10 x 1.50 mm bolt with a precise length and thread profile. Its main function is to prevent bolt ""creep"" or loosening caused by continuous high-frequency engine vibration. By using a bolt with a built-in isolator, the pressure on the oil pan gasket remains uniform and constant, drastically reducing the risk of catastrophic oil leaks and engine damage. This is a critical component for any S60 oil pan replacement or repair. Cross-references of the product: Detroit Diesel 23522281, DDE 23522281, PAI 642020, HHP P235686, and DE23522281. The superior design of DDE 23522281 guarantees a secure, vibration-dampened connection, fundamental for a dry engine and the reliable performance of your Detroit Diesel Series 60. Characteristics: ⦁ Part Type: Oil Pan Isolator Bolt Assembly ⦁ OEM Part Number: 23522281 ⦁ Thread Size: M10 x 1.50 mm ⦁ Overall Length: 62.40 mm ⦁ Compatible Engines: Detroit Diesel Series 60 (11.1L, 12.7L, 14L)