PRODUCT OVERVIEW: Gates Oil Caps are top quality, constructed of impact resistant plastic and heavy-gauge metal to assure long service life. PRODUCT INFO: Gates 05-12 Chrysler 300 / 99-04 300M Oil Filler Cap MANUFACTURER PART NUMBER: 31118 PRODUCT SPECIFICATIONS: Neck Depth (in): 1.3 Neck Diameter (in): 1.22 GUARANTEES AND WARRANTIES: 30-day satisfaction guarantee See manufacturer's website for most accurate warranty information.