SHEPPARD 592 S5-6 SU5 Mack POWER STEERING GEAR BOX

Power Steering Gear Box

Fits: Mack R-Series, RD, DM & Classic Heavy-Duty Models

Get your truck back on the road with a professional-grade remanufactured Sheppard 592 S5-6 SU5. Specifically engineered for the demanding steering requirements of Mack chassis, this unit is precision-rebuilt using premium internal seals and high-strength components to eliminate steering wander and restore original handling performance.

• Core Charge: $700 (Refundable)

• Condition: Remanufactured (Tested to OEM Standards)

• Warranty: 1-Year Warranty

Technical Specifications

• Model: Sheppard 592 Series

• SKU / Part Number: S5-6 SU5

• Casting Number: 592 S5-6 / SU5

• Application: Heavy-Duty Mack Trucks

• Output Shaft Diameter: 2.0 inches

• Input Shaft Thread: M14 x 2

Important Policies

• Core Return: To receive your $700 refund, the core must be the same model as shipped (Sheppard 592 SU5) and free of cracks or broken housings. For more information on the Core Charge Policy Click Here.

• Shipping: Customer is responsible for all shipping costs.

• Pro Tip: For Mack trucks, steering geometry is critical. Always check your drag link ends and steering column U-joints when installing a new gear box. A complete hydraulic system flush and new filter are mandatory to protect your 1-year warranty.

Questions? Call us or Email Us for fitment verification or shipping quotes.