Buy HD94PP32 - Genuine Sheppard Steering Gear Box - wisentpartscenter.com

Description

Genuine Sheppard HD94PP32 Power Steering Gear Box is an integral hydraulic steering gear designed for heavy-duty truck front axles. The HD94 series converts steering-wheel input into hydraulic-assisted movement at the pitman arm, reducing steering effort while maintaining a direct mechanical connection through the steering system.

Key Functions
- Transfers steering input from the steering column to the steering linkage.
- Uses hydraulic pressure to reduce steering effort under load.
- Provides mechanical steering backup if hydraulic assist is lost.
- Absorbs road shock through the hydraulic steering circuit to reduce steering-wheel kickback.

Verify fitment with us before ordering to ensure the correct part for your application.

Purpose of the Part

The HD94PP32 takes the driver’s steering-wheel movement and turns it into controlled movement of the pitman arm and steering linkage. Hydraulic pressure supplies most of the force needed to steer a loaded front axle while the internal gear mechanism maintains a mechanical connection between the steering column and road wheels.

Issue Symptoms / When to Replace

A worn steering gear can cause excessive steering-wheel play, wandering, delayed steering response, hydraulic fluid leakage, or steering effort that changes during a turn. Binding or abnormal internal noise should be taken seriously. Before replacing the gear, check the steering shaft, drag link, tie rods, front axle components, power-steering pump, fluid supply, and steering linkage because looseness elsewhere can feel like steering-gear wear.

Brand Information

R.H. Sheppard is a U.S. manufacturer based in Hanover, Pennsylvania that specializes in commercial-vehicle steering systems. The HD94 is Sheppard’s lighter heavy-duty line-haul power steering gear, designed for approximately 10,000–14,600 lb front axle applications while providing the same integral hydraulic steering principle used across its larger heavy-truck steering gear families.

Installation Notes

Center the steering system before installation and use the vehicle-specific procedure for pitman-arm positioning, hydraulic connections, fastener torque, and relief-plunger setup.

How to Identify an OEM Part

A genuine unit can be identified by the Sheppard factory identification on the steering gear and the HD94PP32 model number. Sheppard also permanently marks the gear family and identification numbers into the housing.

Why Buy HD94PP32 from Wisent Parts

  • ⏱️
    Fast shipping
    Orders before 12PM EST ship same business day.
  • 🛡️
    180-day warranty
    All parts covered from delivery date.
  • ↩️
    Easy returns
    30-day returns.
  • ✅
    Verify fitment
    Send VIN/ESN and we’ll confirm.

Shop with confidence

Warranty & Return Information
Warranty Information

Wisent Parts offers a 180-day warranty on all parts from the date of delivery. This warranty covers orders placed directly through our website. If a part fails during this period, we’re here to help - whether it’s a replacement, repair, or refund. For full details, refer to the Warranty page.

Return Information

Wisent Parts accepts returns within 30 days of delivery. All returns are subject to a restocking fee. To qualify, parts must be unused and in their original condition. For full return instructions and restocking fee details, please refer to the Returns page.