USA Standard Gear ZTNP1300-139-027 Transfer Case Rear Mainshaft Snap Ring

The USA Standard Gear ZTNP1300-139-027 is a precision-engineered snap ring designed for the rear mainshaft 5th gear position in NP241 and NP243C transfer cases. This critical retention component secures the mainshaft assembly, preventing axial movement and ensuring proper gear alignment during operation.

Key Features:

• Direct replacement for NP241 and NP243C transfer case applications
• Rear mainshaft 5th gear snap ring position
• Precision-manufactured to OEM specifications for proper fit and retention
• Essential component for transfer case rebuilds and repairs
• Quality-tested to ensure reliable performance

USA Standard Gear maintains one of the largest inventories of transfer case component parts in the industry, backed by experienced technical support and in-house quality assurance testing. This snap ring is an essential small part for transfer case overhauls, rebuilds, and maintenance work on vehicles equipped with NP241 or NP243C transfer cases.