🚚 Bulk Pricing – Mix & Match Any 3 Models
Buy any mix of A‑4740 / A‑5000 / K‑3331. Total quantity 4+ / 26+ / 61+ / 101+ / 161+ unlocks higher discount tiers.
📦 Shipping & Ordering Rules
- Exclusive Website Orders: All orders must be placed online. We do not accept WhatsApp or email orders to ensure fastest processing.
- Fast Dispatch: Paid orders ship within 24 hours. Cut‑off: Weekdays 2:30 PM CST; Saturdays 11:00 AM CST. Post‑cutoff orders ship next business day.
- Pickup Info: We strongly recommend shipping. Spontaneous walk‑in pickups at our Katy warehouse are not supported; please complete your online order first.
Overview
The A‑4740 air filter regulator is a key pneumatic control component for Eaton Fuller heavy‑duty truck transmission systems. This OE‑equivalent aftermarket part filters and stabilizes air pressure to deliver consistent, reliable operation for fleet maintenance and truck repair service.
Key Features
- OE‑equivalent aftermarket A‑4740 air filter regulator, engineered for drop‑in fit service
- Integrated filter element removes moisture and contaminants from compressed air supply
- Stable pressure output to protect transmission pneumatic components
- Robust construction built for heavy‑duty truck service conditions
Cross OEM Part Numbers
OE‑equivalent A‑4740 air filter regulator fits Eaton Fuller heavy‑duty transmission system. Cross OEM Part No: FUL‑A‑4740, 430098‑A‑4740, 5484863C91, EF36730. Port size: 3/8″ NPT inlet, 1/8″ NPT outlet. Direct drop‑in fit for heavy‑duty trucks, widely used on Freightliner, Mack heavy‑duty trucks with Eaton Fuller transmission.
Fitment
Commonly used for air supply circuit maintenance and pneumatic system service on Eaton Fuller 13‑ speed, 15‑ speed, 18‑ speed heavy‑duty gearboxes.




