Motorad 202123475 MGC939T Tethered Non-Locking Fuel Tank Cap

The Motorad MGC939T is a tethered, non-locking replacement fuel tank cap corresponding to OEM part number 202123475. Engineered as a direct OEM-quality aftermarket replacement, this fuel cap is manufactured to meet or exceed original equipment standards for fit, function, and emissions compliance.

Fuel caps are a small but critical component of a vehicle's fuel and emissions system. This cap features built-in pressure and vacuum relief valves to maintain proper fuel system pressure and prevent fuel vapor from escaping through the filler neck — a leading source of hydrocarbon emissions. The tethered design keeps the cap attached to the vehicle during refueling, eliminating the risk of losing or misplacing the cap.

Key Features:

• Tethered non-locking design prevents cap loss during refueling
• Manufactured to OEM quality standards by an OE supplier
• Built-in pressure and vacuum relief valves prevent fuel evaporation
• Passes all state and federal emissions requirements including MVSS301 and I/M 240
• Direct replacement — no special tools or modifications required for installation
• Durable construction for long service life

OEM & Cross-Reference Part Numbers: 202123475, LR049865, LR062454, LR092778, LR092779, LR138720, LR178173, MGC939T, NAPA 703-5556, OReilly 10939T

A defective or missing fuel cap can allow significant fuel vapor loss into the atmosphere each year. Replacing a worn or damaged cap with a quality unit like the Motorad MGC939T is essential for maintaining fuel economy, passing emissions inspections, and protecting the environment.