4648307 | Genuine TRW® Steering Gear

2018 International ProStar
2015 Mack CHU613
2008, 2012, 2013, 2015, 2019 Volvo
2014 Freightliner Cascadia
Freightliner Coronado

1. Convert steering wheel motion

• Takes the circular motion from the steering wheel and turns it into side-to-side (linear) motion for the wheels or rudder.

2. Provide mechanical advantage

• Reduces the effort needed to steer, especially at low speeds or under heavy loads.

3. Deliver precise and stable control

• Ensures the vehicle or boat responds smoothly and accurately to steering inputs.

4. Support different steering systems

• Works with manual, hydraulic, and power-assisted steering setups.

5. Enhance safety

• Reliable steering gear ensures the operator can maintain control in all driving or boating conditions.

1. Hard or stiff steering

• Steering becomes difficult, especially at low speeds, due to internal wear or hydraulic issues.

2. Excessive play or loose steering

• The steering wheel feels loose, requiring more movement before the wheels respond.

3. Steering wheel vibration or wobble

• Worn gears, bearings, or internal components can cause shaking while driving or turning.

4. Uneven or wandering steering

• The vehicle or boat may drift, pull to one side, or refuse to stay in a straight line.

5. Grinding, clunking, or knocking noises

• Damaged internal components may make noise when turning the wheel.

6. Fluid leaks (for hydraulic/power steering gears)

• Oil or power steering fluid leaking from seals or the gear housing indicates wear or failure.

7. Delayed steering response

• A noticeable lag between turning the wheel and the vehicle or rudder responding.

8. Steering binding or “sticking”

• The wheel may not return smoothly to center or may feel like it catches at certain points.

9. Uneven tire wear

• Poor steering control or misalignment from a failing gear can cause abnormal tire wear patterns.