Rear Main Seal – Ford (AT4Z-6701-A)

The Rear Main Seal – Ford (AT4Z-6701-A) is a Genuine OEM engine sealing component designed to prevent engine oil leakage at the rear of the crankshaft where it interfaces with the transmission. Manufactured by Ford, this rear main seal is engineered to exact factory specifications to ensure proper sealing, correct fitment, and long-term reliability in demanding engine environments.

Constructed from high-quality, automotive-grade elastomer material, this rear main seal is designed to withstand constant rotational movement, high operating temperatures, and prolonged exposure to engine oil. The material formulation helps maintain flexibility and sealing integrity over time, reducing the risk of hardening, cracking, or premature wear that can lead to oil leaks.

This component is vehicle-specific and intended for Ford applications requiring part number AT4Z-6701-A. OEM fitment ensures proper diameter, sealing lip design, and compatibility with the factory crankshaft and engine block. Professional mechanics benefit from predictable installation and reliable sealing performance, while experienced DIY mechanics can confidently complete engine or transmission service knowing the seal meets original design standards.

Functionally, the rear main seal plays a critical role in maintaining engine oil containment and protecting surrounding components such as the clutch or torque converter from oil contamination. A leaking rear main seal can result in oil loss, reduced engine cleanliness, and costly secondary repairs. Replacing it with a Genuine Ford OEM rear main seal helps restore proper oil sealing and supports long-term engine reliability.

Key product features and benefits include:

• Genuine Ford OEM rear main seal

• Durable automotive-grade elastomer construction

• Designed for precise crankshaft sealing and leak prevention

• Resistant to heat, oil, and continuous rotational stress

• Suitable for professional engine service or advanced DIY repair

For technicians and vehicle owners who prioritize engine integrity, leak-free operation, and factory-correct repairs, the Rear Main Seal – Ford (AT4Z-6701-A) delivers dependable OEM quality to help maintain proper oil control and long-term engine performance.

Rear Main Seal – Ford (AT4Z-6701-A)

The Rear Main Seal – Ford (AT4Z-6701-A) is a Genuine OEM engine sealing component designed to prevent engine oil leakage at the rear of the crankshaft where it interfaces with the transmission. Manufactured by Ford, this rear main seal is engineered to exact factory specifications to ensure proper sealing, correct fitment, and long-term reliability in demanding engine environments.

Constructed from high-quality, automotive-grade elastomer material, this rear main seal is designed to withstand constant rotational movement, high operating temperatures, and prolonged exposure to engine oil. The material formulation helps maintain flexibility and sealing integrity over time, reducing the risk of hardening, cracking, or premature wear that can lead to oil leaks.

This component is vehicle-specific and intended for Ford applications requiring part number AT4Z-6701-A. OEM fitment ensures proper diameter, sealing lip design, and compatibility with the factory crankshaft and engine block. Professional mechanics benefit from predictable installation and reliable sealing performance, while experienced DIY mechanics can confidently complete engine or transmission service knowing the seal meets original design standards.

Functionally, the rear main seal plays a critical role in maintaining engine oil containment and protecting surrounding components such as the clutch or torque converter from oil contamination. A leaking rear main seal can result in oil loss, reduced engine cleanliness, and costly secondary repairs. Replacing it with a Genuine Ford OEM rear main seal helps restore proper oil sealing and supports long-term engine reliability.

Key product features and benefits include:

• Genuine Ford OEM rear main seal

• Durable automotive-grade elastomer construction

• Designed for precise crankshaft sealing and leak prevention

• Resistant to heat, oil, and continuous rotational stress

• Suitable for professional engine service or advanced DIY repair

For technicians and vehicle owners who prioritize engine integrity, leak-free operation, and factory-correct repairs, the Rear Main Seal – Ford (AT4Z-6701-A) delivers dependable OEM quality to help maintain proper oil control and long-term engine performance.