The Donaldson Duramax Head Assembly combines precision engineering with reliable performance for high-end hydraulic systems. Built to the renowned standards of Donaldson, the HMK04 head assembly series provides the durability and efficiency required by your commercial truck or heavy-duty vehicle. Every component is designed for a secure installation—featuring an integrated O-Ring—ensuring long-lasting performance even under heavy loads.

Technical Specifications

• Series: HMK04
• Overall Length: 6.0 inches (approx.)
• Height: 4.0 inches (approx.)
• Inlet Diameter: 1.5 inches | Outlet Diameter: 1.75 inches
• Filter-to-Head Thread Specification: M12 x 1.5
• Bypass Valve Pressure: 200 PSI (typical conditions)

This product is engineered for uncompromised hydraulic performance, meticulously tested to meet the rigorous quality standards established by Donaldson. Its sturdy design guarantees exceptional durability and secure seals that minimize leakage and maintain optimal efficiency, even in the toughest conditions.

Order & Shipping Information

At Everything Truck Parts, you can expect reliable service and swift shipping—most orders are dispatched within 1 business day with no minimum order requirement. Discover the perfect blend of advanced engineering and prompt delivery that makes our parts a top choice for truck and Jeep enthusiasts. For more exclusive Donaldson products, visit our Donaldson collection.