National 711156 Automatic Transmission Output Shaft Seal - Right

Automatic Transmission Output Shaft Seal

National 711156 is a premium automatic transmission output shaft seal built for right-side applications on select Mazda vehicles. It uses a polyacrylate sealing material and an extended additional dust lip to help maintain sealing performance in demanding transmission environments.

Key Features

• Premium-grade transmission seal for output shaft service
• Polyacrylate construction for sealing durability
• Extended additional dust lip for added contamination control
• Right-hand application coverage for select Mazda models
• Helix type: RH

Detailed Description

National 711156 is an automatic transmission output shaft seal engineered with a 1.50-inch inside diameter, 2.559-inch outside diameter, and 0.355-inch width. The seal is specified with a 1.575-inch shaft diameter and a 2.56-inch housing bore, and its TRI rim shape supports proper seating in the transmission case. This part fits 2012-2023 Mazda 3, right; 2014-2020 Mazda 6, right; 2016-2020 Mazda CX-3, right; 2020 Mazda CX-30, right; 2013-2020 Mazda CX-5, right; and 2016-2020 Mazda CX-9, right. For buyers searching for a Mazda 3 transmission output shaft seal or a Mazda CX-5 automatic transmission seal, National 711156 provides a direct service replacement option. This part cross-references FZ0127238 for the same application.

What It Is Used For

• Replacing a leaking automatic transmission output shaft seal
• Restoring sealing at the transmission housing bore
• Addressing fluid seepage around the output shaft area
• Replacing a worn or hardened seal lip
• Servicing right-side transmission seal applications on select Mazda models

Installation Notes and Tips

Confirm shaft diameter, housing bore, and application side before installation. Inspect the shaft surface and seal bore for wear, scoring, or contamination before fitting the new seal. Proper alignment during installation helps prevent lip damage and premature leakage.

Quality Assurance

National has supplied premium sealing solutions for more than 75 years and is recognized for engineering focused on modern vehicle sealing requirements.