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Restore the precise steering control and heavy-duty reliability of your Ford Super Duty with this professional-grade remanufactured ZF Steering Gear Box. Engineered specifically for the high-torque requirements of the F-450 and F-550 series, this unit is rebuilt with premium seals and high-tolerance internal components to ensure leak-free performance and OEM-level steering response.
Core Charge: $550 (Refundable Deposit)
Condition: Remanufactured (Tested to OEM Standards)
Warranty: 1-Year Warranty
Model: ZF Steering Series
SKU / Part Number: ZF-F450/550
OEM Part Numbers: 4C3Z-3504-AA, 5C3Z-3504-AA, 7C3Z-3504-A, 8C3Z-3504-B
Motorcraft Ref: STG-30, STG-48, STG-118
Truck Makes: Ford
Application: F-450, F-550 Super Duty Models
Core Return: To receive your $550 refund, the core must be the same model as shipped (ZF Ford 450/550 series) 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: Ford Super Duty steering systems are prone to air entrapment. To ensure proper operation and protect your 1-year warranty, a professional bleeding procedure, a complete system flush, and a new power steering filter are mandatory during installation.
Questions? Call us or Email Us for fitment verification or shipping quotes.
Restore the reliable steering control of your classic medium-duty chassis with this professional-grade remanufactured Saginaw 7830389. This unit is meticulously rebuilt using premium internal seals and high-tolerance components to eliminate steering play and meet or exceed original equipment standards for vocational, delivery, and utility applications.
Core Charge: $500 (Refundable Deposit)
Condition: Remanufactured (Tested to OEM Standards)
Warranty: 1-Year Warranty
Model: Saginaw Series
SKU / Part Number: 7830389
Truck Makes: Chevrolet, GMC, International Navistar
Year Range: 1978–1998
Common Applications: Chevy/GMC C-Series (C50, C60, C70), P-Chassis, and International Medium-Duty Models
System Type: Hydraulic Power Steering
Core Return: To receive your $500 refund, the core must be the same model as shipped (Saginaw 7830389 series) 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 trucks within this year range, hydraulic system cleanliness is the most critical factor for longevity. To protect your 1-year warranty and ensure optimal operation, a complete hydraulic system flush and the installation of a new power steering filter are mandatory during installation.
Questions? Call us or Email Us for fitment verification or shipping quotes.
Ensure the perfect fit for your steering system with this professional-grade remanufactured Saginaw Metric 7813161. This unit is meticulously rebuilt using premium internal seals and high-strength components to eliminate steering play. Because this model features a specific Round Shaft design and Standard Rotation, it is critical to verify your current core's specifications before purchasing.
Core Charge: $550 (Refundable)
Condition: Remanufactured (Tested to OEM Standards)
Warranty: 1-Year Warranty
Model: Saginaw Metric
SKU / Part Number: 7813161
Rotation: Standard Rotation
Input Shaft: Round Shaft (Verification Required)
System Type: Metric Hydraulic Ports
This gear box is equipped with a Round Shaft, which differs from the more common splined shafts. To avoid shipping errors and downtime:
Verify Rotation: Ensure your system requires Standard Rotation.
Check the Shaft: Visually confirm your steering shaft matches the round profile of this unit.
Contact Us: We strongly recommend to Call us or Email Us before placing your order to verify fitment for your specific truck.
Core Return: To receive your $550 refund, the core must be the same model as shipped (7813161 with Round Shaft) 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: A complete hydraulic system flush and a new power steering filter are mandatory to prevent contamination from old fluid and protect your 1-year warranty.
Restore reliable steering control and hydraulic efficiency with this professional-grade remanufactured Saginaw Standard Steering Gear Box. Featuring a specific 9-spline input shaft, this unit is meticulously rebuilt using premium seals and high-tolerance internal components to eliminate steering play and ensure leak-free performance that meets or exceeds original equipment standards.
Core Charge: $550 (Refundable Deposit)
Condition: Remanufactured (Tested to OEM Standards)
Warranty: 1-Year Warranty
Model: Saginaw Standard Series
SKU / Part Number: 7813161
Input Shaft: 9 (Nine) Splines
Truck Makes: Various Heavy-Duty / Vocational Applications
System Type: Hydraulic Power Steering
Core Return: To receive your $550 refund, the core must be the same model as shipped (Saginaw 7813161 series) 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: Saginaw gear boxes are known for their longevity, but are highly sensitive to contaminated fluid. To protect your 1-year warranty and ensure optimal operation, a complete hydraulic system flush and the installation of a new power steering filter are mandatory during installation.
Questions? Call us or Email Us for fitment verification or shipping quotes.

