Baldwin PA1798 Engine Air Filter

Baldwin PA1798 Engine Air Filter

The Baldwin PA1798 engine air filter is built for Chevrolet and GMC buses and trucks, with additional application notes for Steiger tractors. It is also noted as sometimes used as a cab air filter on Steiger tractors, making it a practical OE-style service part for specific heavy-duty applications.

Key Features

• Engine air filter for air and fuel delivery service
• Fits Chevrolet, GMC buses and trucks, plus Steiger tractors
• Height: 5 9/16 in. (141.3 mm)
• Inside diameter: 8 17/32 in. (216.7 mm)
• Outside diameter: 11 5/16 in. (287.3 mm)
• Related to Baldwin PA1800 with foam wrap
• Replaces GMC 6423239

Detailed Description

Built for heavy-duty filtration service, Baldwin PA1798 is an engine air filter sized to match specific Chevrolet and GMC bus and truck applications, along with Steiger tractor use cases. The listed dimensions help confirm fitment during service work, especially when replacing an existing filter by size and reference number. Baldwin PA1798 is also referenced as sometimes used as a cab air filter on Steiger tractors, and it cross-references Baldwin PA1800 with foam wrap for related applications. For buyers searching Chevrolet GMC bus air filter, GMC truck engine air filter, or Baldwin PA1798 replacement, this part provides a direct service match for the listed applications.

Use Baldwin PA1798 when servicing Chevrolet and GMC buses and trucks that call for GMC 6423239, or when matching the specified Steiger tractor application. The part number PA1798 is useful for catalog lookup, fleet maintenance, and filter replacement planning on older heavy-duty equipment.

What It Helps Address

• Restricted airflow caused by a dirty or clogged engine air filter
• Dust and debris entering the intake system
• Incorrect filter sizing during Chevrolet GMC bus and truck service
• Replacement needs for Steiger tractor air filtration service
• Cross-reference lookup for GMC 6423239 and Baldwin PA1798

Installation Notes and Tips

Verify the filter dimensions against the existing unit before installation: 5 9/16 in. height, 8 17/32 in. inside diameter, and 11 5/16 in. outside diameter. Confirm the application by part number and vehicle service record, especially on Chevrolet and GMC buses and trucks or Steiger tractors. If the unit is being used in a cab air application on a Steiger tractor, compare the housing dimensions and sealing surface carefully before service.

Quality Assurance

Baldwin filtration parts are specified for heavy-duty service applications and are commonly selected for maintenance programs that require dimensional accuracy and application-specific replacement. PA1798 is identified as a direct replacement for GMC 6423239 in the listed applications.