Tritenco A-4740 Air Filter Regulator | Eaton Fuller Transmission Replacement

Tritenco A-4740 Air Filter Regulator | OE Replacement for Bendix & WABCO
Direct Fit, Heavy‑Duty Air Dryer / Filter Regulator – Replaces A4740, S-9146 & All Major Aftermarket Part Numbers

For fleet managers, service technicians, and parts buyers, clean, regulated air supply is critical to protecting transmission valves, shift cylinders, and entire pneumatic systems. The Tritenco A-4740 Air Filter Regulator is engineered to filter moisture, contaminants, and debris while maintaining stable air pressure—preventing premature valve failure, air leaks, and costly downtime in heavy‑duty trucks.

Built as a direct OE‑equivalent replacement, this unit fully replaces a complete lineup of OEM and aftermarket part numbers, including Eaton Fuller A-4740, FULA4740, FUR-A-4740, Bendix A-4740, A4740, A4740-SP, 3088-A-4740, S-9146, WABCO 01FA4740, 19600, 35530403, 02076801, 2076801, A4740B, A4740NP, WWS A-4740, 14-500, Navistar 584863C91, 584863C, 401304, Ford E1HZ7B265-A, Excel EF36730, EF367309633, 9633, Grote GTA-A4740, Kysor KA4740, Midland M13A-4740, and Haldex NSFSA4740. Every cross‑reference part in your keyword list is fully covered and recognized.
Constructed with high‑quality internal components and precision‑machined to strict OE specifications, the A-4740 provides consistent pressure regulation and long‑life filtration in harsh operating environments. Each unit undergoes strict air leakage and function testing to ensure reliable performance that matches or exceeds original equipment standards. Whether you’re performing routine maintenance, repairing a failed air system, or stocking parts for fleets and distributors, you can install Tritenco with complete confidence.

Designed for drop‑in installation with standard mounting and port dimensions, this air filter regulator reduces labor time and speeds up repairs. We focus on real‑world durability, predictable quality, and full compatibility so you can protect your pneumatic system, reduce comebacks, and keep your operation running smoothly.

Product Overview  

• Brand:  Tritenco
• Part Number: A-4740 (also known as a4740)
• Condition: 100%New
• Compatibility: Designed for Eaton Fuller 6-Series, 13-speed, 15-speed, and 18-speed heavy-duty transmissions.
  Compatible with a wide range of heavy-duty truck models.

Interchangeable Part Numbers

Key Features

• OE-Equivalent Performance: Built to meet or exceed original specifications for reliable air regulation
• Enhanced Durability: High-quality aluminum construction withstands harsh operating conditions
• Direct Bolt-On Installation: Designed for seamless replacement without modifications
• Contamination Resistance: Filters oil and moisture to protect transmission components and prevent sluggish shifts
• Broad Compatibility: Fits most Eaton Fuller heavy-duty transmissions, including 6-Series and multi-speed models

Product Description

• The TRITENCO A-4740 air filter regulator is a critical component for diesel truck transmissions. Its primary role is to cleanse compressed air from the vehicle's system and maintain stable output pressure (~63 psig), ensuring crisp operation of range and splitter valves for smooth, reliable gear changes.
• By delivering clean, dry air, this valve prevents common issues like slow or sluggish shifts, especially during cold starts. It is an essential replacement part for maintaining peak performance and longevity of heavy-duty drivetrains.

Technical Specifications

• Material: Aluminum (body)
• Finish: Natural
• Ports: 1×3/8-inch NPT (supply), 3×1/8-inch NPT (delivery)
• Mounting: 2×1/4-inch-20×2-inch bolts
• Setting Pressure: 56.5-62.5 psig adjustable
• Working Temperature: -40℃～120℃
• Weight: 275g (0.606 lbs)

Package Includes

• 1× Air Filter Regulator Assembly

Compatibility Note

• This is an aftermarket replacement part. It is designed to be compatible with and replace listed OEM part numbers. All referenced trademarks are property of their respective owners.
• Backed by Tritenco’s precision manufacturing and IATF 16949 quality system, the A-4740 air filter regulator delivers consistent performance for fleets, repair shops, and aftermarket distributors worldwide.
• For a fully optimized transmission air system, we recommend pairing it with the Tritenco K-3331 splitter valve kit and A-5000 slave valve assembly.

Learn more about our Manufacturing capability

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The a4740 air filter regulator is a key oe-quality component for heavy-duty truck transmission systems, designed to deliver clean, regulated air to protect pneumatic valves and ensure

consistent performance. Manufactured with precision machining and strict quality control, it filters contaminants and maintains stable air pressure for smooth operation.