25740406 GM At filter

What is this part?

The GM automatic transmission filter 25740406 is a genuine OEM transmission component designed to keep transmission fluid clean.

What does it do?

This OEM AT filter removes metal particles, clutch material, and contaminants from the automatic transmission fluid (ATF). Clean fluid ensures proper hydraulic pressure, smooth gear shifts, and reduced wear of internal components. A genuine GM transmission filter is manufactured to factory specifications, ensuring correct filtration efficiency, flow rate, and secure sealing. Proper filter performance is essential for transmission reliability and long service life.

When to replace

The GM automatic transmission filter 25740406 should be replaced during scheduled transmission service or if transmission fluid becomes contaminated. Symptoms such as delayed shifting, slipping, or overheating may indicate a clogged filter. Installing a genuine OEM transmission filter helps restore correct fluid flow and protect the transmission.

Compatibility

The genuine GM automatic transmission filter 25740406 is compatible with selected GM automatic transmissions. This OEM component is engineered for precise fitment within the original transmission oil pan or valve body area. Compatibility may vary depending on transmission model and service design. Please verify the part number 25740406 before purchase.

Installation: DIY or service?

Installation of this genuine OEM GM automatic transmission filter 25740406 involves draining ATF and removing the transmission oil pan. Installation can be performed as a DIY task by experienced users; however, proper fluid level adjustment and sealing are critical. Professional service is recommended for best results.