

Genuine Mazda CX-9 Transmission Oil Seal 2011-2017 (doughnut seal) AW0119241 is a drivetrain component that seals the connection between the transmission and driveshaft, helping prevent transmission oil from leaking during operation.
On the Mazda CX-9, the transmission seal plays an important role in maintaining a stable supply of lubrication inside the transmission, helping gears and mechanical parts operate smoothly, reducing friction, and limiting wear during power transfer.
Over time, the seal can harden, crack, or wear due to high operating temperatures and pressure, leading to transmission oil leaks, fluid loss, slipping, harsh shifting, or reduced drivetrain performance.
The genuine Mazda part code AW0119241 is manufactured to factory technical standards, ensuring a high level of sealing, strong pressure resistance, and full compatibility with the Mazda CX-9 transmission system for model years 2011-2017.
In addition to sealing oil, the transmission seal also helps protect internal transmission components from dust and outside contaminants, contributing to a longer service life for the entire drivetrain system.
Using genuine parts helps ensure stable operation, smooth shifting, and long-lasting transmission durability under real-world driving conditions.
Product information
• Product name: Transmission Oil Seal / Transmission Oil Seal (doughnut seal)
• Part number: AW0119241
• Brand: Mazda Genuine Parts
• Applicable vehicle: Mazda CX-9
• Model years: 2011-2017
• System: Drivetrain – transmission
• Installation position: Transmission (driveshaft connection)
• Condition: New
Functions and role
• Seals transmission fluid
• Prevents drivetrain oil leaks
• Maintains stable lubrication
• Protects gears and transmission components
• Helps keep dirt and debris out of the system
Key advantages
• Genuine Mazda part
• High sealing performance, excellent leak resistance
• Resistant to high pressure and high temperatures
• Durable material, long service life
• Precise OEM fit, absolute accuracy
Signs it needs replacement
• Transmission oil leaking under the vehicle
• Transmission is low on fluid or consuming oil
• Jerky or rough shifting
• Oil marks around the seal area
• Seal hardened, cracked, or deformed
👉 The transmission seal is an important component that directly affects durability and drivetrain performance, so it should be inspected and replaced promptly when signs of damage appear.
Replacement recommendations
• Check transmission fluid and driveshaft at the same time
• Replace with the correct AW0119241 part number for compatibility
• Clean the installation area thoroughly before replacement
• Check shaft play if there has been prolonged leakage
• Prefer genuine parts to ensure durability and safe operation
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