Mazda 3 Mazda CX-5 Automatic Transmission Oil Filter 2015-2018 OEM FZ0121500

Mazda 3 Mazda CX-5 Automatic Transmission Oil Filter 2015-2018 OEM FZ0121500 is a component of the lubrication and fluid circulation system in an automatic transmission. During transmission operation, transmission fluid continuously circulates to lubricate, transmit pressure, and support the work of many internal parts. The filter is responsible for trapping dirt and contaminants generated during operation.

Clean transmission fluid helps the hydraulic system and internal transmission components operate more stably. As the fluid passes through the filter, contaminants and dirt are retained, limiting their continued circulation in the system. Therefore, the condition of the transmission oil filter is directly related to maintaining fluid quality and transmission performance.

After a period of use, the filter can accumulate significant dirt. When filtration performance declines or the fluid passage is affected, fluid circulation may no longer be as effective as before. The vehicle may show rough shifting, delayed gear changes, or other abnormal transmission-related symptoms.

OEM FZ0121500 transmission oil filter is designed to fit the automatic transmission system on Mazda 3 and Mazda CX-5 2015-2018 models, making it a suitable replacement when the old filter is due for maintenance or has become dirty or worn.

Product information

• Product name: Mazda 3 Mazda CX-5 automatic transmission oil filter
• Vehicle line: Mazda 3, Mazda CX-5
• Model years: 2015-2018
• Part number: FZ0121500
• Brand: OEM
• Location: Inside the automatic transmission system
• Function: Filters dirt and contaminants from transmission fluid
• Part type: Automatic transmission oil filter

Functions and role

1. Filters dirt from transmission fluid

The filter traps dirt and contaminants in the transmission fluid, helping limit these particles from continuing to circulate within the system.

2. Helps protect transmission components

Clean fluid helps reduce the risk of contaminants coming into contact with and affecting internal transmission parts, helping maintain stable operation.

3. Helps maintain fluid circulation

A filter in good condition helps transmission fluid circulate through the system as required, supporting lubrication and the operation of the automatic transmission.

Key advantages

• Suitable for Mazda 3 and Mazda CX-5 2015-2018.
• FZ0121500 part number is easy to reference when ordering.
• OEM product designed to fit the transmission system.
• Helps filter dirt and contaminants from transmission fluid.
• Contributes to protecting internal transmission components.
• Helps maintain fluid quality during operation.
• Suitable as a replacement for an old filter during transmission maintenance.
• Ideal for repairs and routine servicing.

Signs to inspect or replace

• Transmission fluid contains a lot of dirt or contaminants.
• The oil filter has been used for a long time and is due for service.
• The vehicle shows rough shifting.
• The transmission shifts late or abnormally.
• Unusual noises appear when the transmission is operating.
• Transmission fluid becomes dirty again quickly after use.
• The transmission system has been disassembled for inspection and the filter is found to have heavy deposits.
• The filter needs to be replaced during maintenance or transmission fluid changes, depending on the actual condition.

👉 The Mazda 3 Mazda CX-5 2015-2018 OEM FZ0121500 automatic transmission oil filter is an important part that helps remove dirt and contaminants from transmission fluid, helping protect the system and support stable transmission operation. Replacing the filter at the right time helps maintain filtration efficiency and fluid quality during vehicle use.

Replacement recommendations

When replacing the FZ0121500 transmission oil filter, it is recommended to check the condition of the transmission fluid, gasket, contact surface, and related positions in the system at the same time. If the fluid contains a lot of residue or shows abnormal signs, the cause should be checked before completing maintenance.

Before ordering, please verify the FZ0121500 part number, Mazda 3/Mazda CX-5 2015-2018 model years, and the actual transmission information to ensure the part is compatible with the vehicle.