World American WA109994 Air Dryer Cartridge for AD-IS/AD-SP M39 x 1.5 — 5.25" x 6.31", OEM-fit filtration

The World American WA109994 air dryer cartridge is a direct-fit replacement for AD-IS and AD-SP systems that restores dry, contaminant-free air to heavy-duty braking systems.

When your truck's air dryer needs service, choosing the right cartridge matters for braking reliability and component life. The World American WA109994 (MWT 109994) is manufactured to match OEM specifications for AD-IS and AD-SP dryer housings, giving technicians a straightforward swap with M39 x 1.5 thread compatibility and a 5.25" diameter by 6.31" length profile. It’s specified for heavy-duty truck applications and cross-references many OEM part numbers across Bendix, Wabco, Volvo, Mack, Freightliner and others.

How does this cartridge fit my AD-IS or AD-SP dryer?

The WA109994 is built to the same dimensional and thread standards as common OE cartridges so it installs without modification. Its M39 x 1.5 thread and 5.25" x 6.31" size match housings designed for standard cartridges used in AD-IS and AD-SP models.

• Direct M39 x 1.5 thread fit for standard dryer housings
• 5.25" diameter and 6.31" height for OEM interchangeability
• Standard-type cartridge engineered for straightforward replacement

What vehicles and part numbers does it replace?

This cartridge cross-references a broad list of OEM and aftermarket numbers, making it suitable for fleets running Bendix, Wabco, Meritor, Volvo, Mack, Freightliner, Kenworth and many other manufacturers. Check the fitment list to confirm compatibility with your specific model and year.

• Interchanges with Bendix R950011/5008414 and Wabco 4324102227
• Compatible with factory numbers from Volvo, Mack, Meritor and Navistar
• Works with many aftermarket references including Fleetguard, Baldwin and Mann-Filter equivalents

What performance and construction features should I expect?

The WA109994 uses filtration media and seals chosen for heavy-duty air brake systems to help reduce moisture and particulate carryover to valves and valves components. It’s designed for durability and to help maintain reliable brake system operation when changed at recommended intervals.

• High-quality filtration media to limit moisture and contaminants
• Durable construction intended for extended service life under heavy use
• Manufactured to meet OEM tolerances for pressure and sealing performance

What warranty and support come with the cartridge?

World American backs this cartridge with a limited warranty to give fleet maintenance teams confidence in part reliability. Warranty details provide repair or replacement coverage within the stated period and mileage limits.

• 1-year or 50,000-mile limited warranty from World American
• Aftermarket support and documentation for fitment verification
• Designed as a cost-effective alternative to OEM replacement parts

Who is this for: The WA109994 from World American is aimed at fleet maintenance managers, service technicians, and owner-operators who need an OEM-dimensioned, cost-effective air dryer cartridge replacement for AD-IS and AD-SP systems. It’s ideal when you require an aftermarket solution that cross-references common OEM numbers, installs without modification, and is backed by a manufacturer warranty for routine heavy-duty truck maintenance.