TOYOTA 90301-73004 Power Steering O-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: 90301-73004) power steering O-ring is a premium-quality factory component designed specifically to provide reliable sealing in hydraulic power steering systems. The high operating pressures and temperatures within the power steering system demand a perfect fit and superior material quality, both guaranteed by this genuine Toyota seal.
Technical Characteristics and Material Quality
While specific physical dimensions are not individually listed, Toyota OEM O-rings deliver the following key properties:
- Material Composition: High-grade elastomer (NBR or Viton) resistant to hydraulic fluid and heat, engineered to withstand the chemical properties of power steering fluid and elevated operating temperatures.
- Design: Precision circular cross-section sealing ring that provides an optimal micro-seal across mating surfaces.
- Durability: Exceptional wear resistance and low compression set for long-lasting service life.
Function and Importance
The closed hydraulic circuit of the power steering system routes fluid under high pressure from the power steering pump to the steering gear. The O-ring's primary role is to prevent leakage at line and component junctions. Without an adequate seal, hydraulic pressure drops, directly impairing steering performance and driving safety.
Common Symptoms of Wear or Failure
- Fluid Leaks: Reddish or brownish power steering fluid seeping around connections on the steering gear, pump, or hydraulic lines.
- Stiff Steering: Increased effort required to turn the steering wheel due to pressure loss, especially noticeable at low speeds.
- Noisy Operation: Whining or groaning noises from the power steering pump during turning maneuvers if air is drawn in through a compromised seal.
- Fluid Loss: A continuously dropping hydraulic fluid level in the power steering reservoir.
Technical Specifications
| Brand | TOYOTA |
|---|---|
| Weight | 0.010 kg |
Compatible Vehicles
| Make | Model | Engine | Year | Notes |
|---|---|---|---|---|
| Toyota | Land Cruiser 100 (J100) | 4.5 (1FZFE) | 1998 - ... | RING, O(FOR VANE PUMP) (FZJ100, 1FZFE) |
| Toyota | Land Cruiser 70 (J70) | 4.5 (1FZF) | 1992 - 2001 | RING, O(FOR VANE PUMP) (FZJ70, 1FZF) |
| Toyota | Land Cruiser 80 (J80) | 4.5 (1FZF) | 1992 - ... | RING, O(FOR VANE PUMP) (FZJ80, 1FZF) |
| Toyota | Land Cruiser Prado (J90) | All Engines | 1996 - ... | RING, O(FOR VANE PUMP) |
| Toyota | Lexus ES (XV40) | All Engines | 2006 - ... | RING, O(FOR VANE PUMP) |
| Toyota | Lexus LX (J200) | All Engines | 2007 - ... | RING, O(FOR VANE PUMP) |
| Toyota | Lexus LX (J80) | 4.5 (1FZFE) | 1995 - 1998 | RING, O(FOR VANE PUMP) (FZJ80, 1FZFE) |
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