Vaico V38-0520 Transmission Filter Kit

Transmission Filter Kit for Nissan and Infiniti

The Vaico V38-0520 transmission filter kit is a service part for 4-speed automatic transmissions used in select Nissan and INFINITI applications. It is built around the listed dimensions and OE cross-reference to support routine transmission maintenance on Frontier, Pathfinder, Xterra, and QX4 models.

VAICO product line parts are developed as aftermarket service components for European and Asian vehicle applications, with fitment and dimensional data used to match the original service requirement. For buyers searching for a Nissan Pathfinder transmission filter kit or a Frontier automatic transmission service kit, this part number provides a direct reference point.

Key Features

• Part number: V38-0520
• Transmission filter kit for 4-speed automatic transmission service
• Dimensions: 217 mm length, 154 mm width, 50 mm height
• Packaged size: 26 cm depth, 10.5 cm width, 5 cm height
• Weight: 0.363 kg
• OE reference: 3172841X03
• Interchanges with 31728-41X01 and 31728-41X03

Detailed Description

Vaico V38-0520 is a transmission filter kit intended for maintenance on select Nissan and INFINITI vehicles equipped with a 4-speed automatic transmission. It matches the listed OE reference 3172841X03 and is sized for the specified service application, making it a practical choice for owners looking for a Nissan Frontier transmission filter kit, Nissan Pathfinder transmission filter kit, or INFINITI QX4 transmission service part. The VAICO line focuses on application-specific aftermarket replacement parts, and this filter kit follows that approach with published dimensional data and OE cross-reference information.

This part cross-references 31728-41X01 and 31728-41X03 for the same application. The V38-0520 part number should be verified against the vehicle’s transmission code and OE number before ordering.

What It Helps Address

• Transmission service intervals that call for filter replacement
• Restricted fluid flow caused by a loaded or worn filter
• Debris buildup inside the automatic transmission service system
• Maintenance on vehicles showing delayed or inconsistent shift quality
• OE-number matching for Nissan and INFINITI transmission filter replacement

Installation Notes and Tips

Confirm the transmission type is a 4-speed automatic transmission and compare the OE number 3172841X03 before installation. Match the filter dimensions to the removed part and inspect the transmission pan and fluid condition during service. For fitment verification, use the vehicle year, make, model, and transmission identification together rather than relying on model name alone.

• Fits 1999-2004 Nissan Frontier, N/A
• Fits 1996-2004 Nissan Pathfinder, N/A
• Fits 2000-2004 Nissan Xterra, N/A
• Fits 1997-2003 INFINITI QX4, N/A
• Fits 1999 Nissan Pathfinder, N/A; From 12/1998 to 09/1999
• Fits 1995-1996 Nissan Pickup, N/A

Quality Assurance

VAICO publishes OE-reference and dimensional data for this transmission filter kit, including the listed cross-reference and application details. Verify part number V38-0520 against the vehicle’s transmission specification and OE number to ensure correct service fitment.