Precision Rebuilding Backed by Real Testing
At Turbo Kings, every HD94 PAR Sheppard Power Steering Gearbox is rebuilt with the same meticulous process, testing standards, and component quality control that define our name across the diesel and heavy-duty industry. Manufactured by Sheppard, the HD94 PAR variant is designed for reliable steering performance in Peterbilt 579 and Kenworth T680 (2015–2016) models.
We don’t simply swap out worn components — we restore, validate, and certify each gearbox to perform at or above OEM standards. Each unit undergoes a full disassembly, media cleaning, and inspection for cracks, corrosion, and wear. Internal seals, bearings, and shafts are replaced using Sheppard-grade OEM components, ensuring long-term reliability and steering precision.
After reassembly, every gearbox is bench-tested in-house at 5 GPM and 2000 PSI, confirming hydraulic integrity, internal pressure stability, and leak-free operation before shipment.
This process isn’t outsourced or estimated — it’s physically verified right here at Turbo Kings.
What Makes a Turbo Kings Rebuild Different
In-House Pressure Certification – Each Sheppard gearbox is tested on a closed-loop hydraulic bench at 2000 PSI to ensure zero internal or external leakage.
Pre-Lubricated & Ready to Install – Every gearbox leaves our shop filled with fresh lubricant and sealed for quick installation.
Precision Machining – All surfaces are refinished to factory-grade tolerances for perfect alignment and torque transfer.
OEM-Level Components – We use only genuine Sheppard seals, bearings, and shafts — never inferior or off-brand parts.
Hands-On Expertise – Each rebuild is completed and signed off by a certified technician with years of steering system experience.
Comprehensive Warranty – Every gearbox is backed by a 12-month, unlimited-mileage warranty, a reflection of our confidence in the product.
Why Fleets and Owner-Operators Trust Turbo Kings
When you choose a Turbo Kings remanufactured HD94 PAR Sheppard gearbox, you’re not buying a guess — you’re buying verified reliability. Fleets, dealerships, and owner-operators depend on us because:
Every gearbox is pressure-tested under real hydraulic load, not paperwork.
We maintain complete core traceability for accountability.
We provide direct support from technicians, not third-party call centers.
We stand by our craftsmanship with transparent communication and fast turnaround times.
Every gearbox that leaves our dock is a fully validated, serialized, and certified steering unit ready for installation.
Our Process at a Glance
Disassembly & Cleaning – Gearboxes are fully disassembled, degreased, and inspected for damage or fatigue.
Parts Replacement & Machining – All wear items are replaced; housings are machined to Sheppard OEM specifications.
Assembly & Torque Verification – Internal components are aligned, torqued, and verified for precise movement.
Pressure Test @ 5 GPM / 2000 PSI – Each gearbox is hydraulically tested to confirm leak-free performance.
Final Inspection & Documentation – Every unit is serialized, logged, and paired with warranty and batch records.
Standard Features
• Fully Pressure-Tested at 2000 PSI and 5 GPM
• Pre-Lubricated and Ready to Install
• Leak-Free Guarantee
• 12-Month Unlimited-Mileage Warranty
• Fast Core Exchange Available
Applications
Compatible with:
Peterbilt 579 (2015–2016)
Kenworth T680 (2015–2016)
Other heavy-duty trucks equipped with Sheppard HD94 steering systems
