TOYOTA 90562-77002 Steering Gear Teflon Ring
Genuine part. Fitment information is for reference only. To ensure 100% compatibility, please send us a message with your VIN number before ordering.
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Product Description
This genuine Toyota OEM steering gear Teflon ring (Part Number: 90562-77002) is a premium-quality, precision sealing element designed to ensure the optimal operation of hydraulic power steering systems. Teflon (PTFE) rings play a critical role in maintaining internal steering gear pressure and properly routing hydraulic fluid.
Operating Principle and Function
Located within the steering gear assembly, the Teflon ring's function is to provide hermetic separation between pressure chambers at the hydraulic cylinder piston or the control valve (rotor). The PTFE material features an extremely low coefficient of friction, minimizing internal steering resistance to deliver smooth, consistent, and effortless steering action. In addition, it offers excellent resistance to high temperatures and the chemical effects of hydraulic fluid.
Technical Specifications
- Manufacturer: TOYOTA (Genuine OEM Part)
- Part Number: 90562-77002
- Part Type: Steering Gear Teflon Ring
- Material: High-density, wear-resistant PTFE (Teflon)
- Application Area: Hydraulic steering gear internal sealing
Common Symptoms of Wear or Failure
Natural wear, scoring, or deformation of Teflon rings leads to internal hydraulic leakage (loss of pressure). If the seal ring becomes damaged, the following symptoms may occur:
- Heavy Steering: Turning the steering wheel becomes significantly more difficult, especially at low speeds or during parking maneuvers.
- Asymmetrical Power Assist: Steering may feel easier in one direction and harder in the other due to uneven hydraulic pressure distribution.
- Steering Vagueness: Delayed response to steering wheel input, or a soft, uncertain steering feel.
- System Overheating: Due to internal bypass leakage, the power steering pump operates continuously under maximum load, which can lead to overheating of the hydraulic fluid.
When rebuilding a steering gear, replacing the Teflon rings is an essential step to restore factory operating parameters. This genuine Toyota part ensures perfect dimensional accuracy and long service life.
Technical Specifications
| Brand | TOYOTA |
|---|---|
| Weight | 0.002 kg |
Compatible Vehicles
| Make | Model | Engine | Year | Notes |
|---|---|---|---|---|
| Toyota | Century (VG4) | All Engines | 1987 - 1997 | RING(FOR POWER PISTON NUT) |
| Toyota | Land Cruiser 100 (J100) | 4.5 (1FZFE) | 1998 - ... | RING(FOR POWER PISTON NUT) (FZJ105, 1FZFE) |
| Toyota | Land Cruiser 80 (J80) | 4.0 (3FE) | 1990 - 1998 | RING(FOR POWER PISTON NUT) (FJ80, 3FE) |
| Toyota | Land Cruiser 80 (J80) | 4.5 (1FZF) | 1992 - 9999 | RING(FOR POWER PISTON NUT) (FZJ80, 1FZF) |
| Toyota | Lexus LX (J80) | 4.5 (1FZFE) | 1995 - 1998 | RING(FOR POWER PISTON NUT) (FZJ80, 1FZFE) |
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