Multiquip PMAF25436 Cartridge Air Cleaner

The Multiquip PMAF25436 Cartridge Air Cleaner is a genuine OEM air filtration component designed for DLW500ESA4 diesel light welders and HTX and STX series hydrostatic ride-on power trowels, including HTXD6i, STXD6i, HTX44Y4, and HTX44Y5 models. As a direct OEM replacement, it meets the original equipment specification so your engine receives clean, correctly filtered air without any guesswork on compatibility. Sourced directly through Multiquip's authorized parts network, PMAF25436 is the same cartridge installed at the factory. Keep one on hand as part of your regular service rotation to ensure consistent engine protection across your fleet.

Key Features

• OEM Filtration Integrity — Engineered to the exact filter media grade and cartridge dimensions specified by Multiquip, ensuring the correct particle capture efficiency for your engine's air intake system.
• Drop-In Cartridge Fit — Replaces the existing filter cartridge using the original housing and retention hardware — no adapter, modification, or shimming required.
• Broad Model Coverage — Confirmed fitment for DLW500ESA4, HTXD6i, STXD6i, HTX44Y4, and HTX44Y5 equipment, covering both diesel light welder and hydrostatic ride-on trowel applications.
• Protects Engine Performance — A correctly functioning air cleaner prevents abrasive dust and debris from entering the engine. A clogged or degraded cartridge causes rich running, increased fuel consumption, and accelerated cylinder wear.
• Fuel System Safety Relevance — Maintaining a clean, sealed air intake path is essential on diesel-powered equipment; a compromised filter allows combustion contaminants that affect injection system integrity and emissions compliance.

The air cleaner cartridge is the primary barrier between the engine's intake and the airborne dust, silica, and debris common on concrete finishing and welding jobsites. It traps particulates before they reach the carburetor or injection system, allowing the engine to draw a clean, correctly metered air charge for efficient combustion. When the cartridge becomes loaded with debris or its filter media deteriorates, air restriction increases, power output drops, and unfiltered contaminants accelerate wear on pistons, rings, and cylinder walls — making regular cartridge inspection and timely replacement one of the most cost-effective engine maintenance steps available.

For questions about fitment or to confirm this is the correct part for your machine, contact the DHS Equipment parts team directly.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.