Baldwin 20037 Transmission Filter

Transmission Oil Filter for Nissan and Infiniti

Baldwin 20037 is a transmission oil filter for vehicles equipped with the RL4F03A 4-speed automatic transmission. It is built to match the listed OE-style applications for Nissan Sentra, Nissan Versa, Nissan Cube, Nissan 200SX, Nissan NX, and Infiniti G20 models.

This Baldwin transmission filter, part number 20037, is sized for the specified pan and filter dimensions and includes a pan gasket for service work on the transmission pan.

Key Features

• Transmission oil filter for RL4F03A 4-speed automatic applications
• Fits 1991-on Nissan automotive applications with RL4F03A transmission
• Fits 1991-1996 and 1999-2002 Infiniti G20 applications
• Pan gasket included
• Pan gasket contains 21 bolt holes
• Dimensions: 8-Mar in. height, 6 1/4 in. length, 5 3/4 in. width
• Replaces Nissan 31728-31X01 and Wix 51996, 58996

Detailed Description

Baldwin 20037 is a transmission oil filter designed for direct replacement service on select Nissan and Infiniti vehicles using the RL4F03A transmission. The filter dimensions and gasket configuration support maintenance on applications such as Nissan Sentra, Nissan Versa, Nissan Cube, Nissan 200SX, Nissan NX, and Infiniti G20. For buyers searching for a Nissan Sentra transmission filter, Infiniti G20 transmission oil filter, or Nissan Versa automatic transmission filter, this part number 20037 matches the listed OE reference and service dimensions.

This part cross-references Nissan 31728-31X01 and Wix 51996, 58996 for the same application.

Used For

• Replacing a clogged or restricted transmission filter
• Restoring proper fluid flow through the automatic transmission
• Addressing service needs during transmission pan maintenance
• Replacing an OE-style filter on RL4F03A-equipped Nissan and Infiniti models
• Supporting routine transmission fluid service on listed vehicles

Installation Notes

Verify the transmission code before installation. This filter is listed for RL4F03A 4-speed automatic applications, and the pan gasket is specified with 21 bolt holes. Confirm pan shape, gasket layout, and OE number 31728-31X01 before service. Clean the pan and mating surfaces thoroughly, then install the Baldwin 20037 filter and gasket according to the vehicle service procedure.

Quality Assurance

Baldwin is a recognized filtration brand used in automotive and heavy-duty service applications. Part number 20037 is built to the listed fitment and OE cross-reference specifications for Nissan and Infiniti transmission service.