Parts for your 2018 Toyota Crown-Power steering pump

2018 Toyota Crown and the power-steering pump: what’s actually fitted

For the 2018 Toyota Crown, a conventional hydraulic power-steering pump isn’t used. Technical sources including Toyota’s Repair Manual (Power Assist Steering – EPS section), the New Car Features (NCF) guide for the S220-series Crown, and Toyota’s Electronic Parts Catalogue for 2018 Crown model codes (e.g., ARS220, AZSH20/AZSH21, GWS224) specify Electric Power Steering (EPS) with a steering-assist motor integrated on the rack. The EPC lists a “motor assembly, power steering” and associated EPS components, not a “pump assy, vane” or hydraulic lines/reservoir typically found in hydraulic systems. Hybrid variants in particular (2.5L and 3.5L hybrid) rely on EPS for efficiency and seamless integration with driver-assist systems.

Why there’s no pump on the 2018 Crown comes down to design intent and efficiency. EPS replaces the belt- or engine-driven hydraulic pump with an electric motor that delivers steering assist only when needed, cutting parasitic losses and fuel use. It also pairs cleanly with modern safety and comfort tech—think lane tracing assist and steering angle coordination—described in Toyota’s NCF documentation for the S220 platform. With fewer hydraulic components, there’s no power-steering fluid to leak, no hoses to perish, and no pump bearings to complain on cold starts. That simplifies routine servicing and reduces lifetime maintenance.

Owners and workshops should instead keep an eye on EPS-related basics during regular servicing:

• Inspect front-end and steering rack boots for damage or contamination, any grit ingress can shorten rack life.
• Check alignment and tyre pressures—EPS systems are sensitive to poor geometry and underinflated tyres, which can feel like heavy steering.
• Scan for stored EPS or steering angle sensor DTCs after wheel alignments, suspension work, or 12V battery replacement, calibrate the steering angle sensor if required (procedure referenced in Toyota’s Repair Manual).
• Listen for abnormal noises over bumps or at low speeds that may point to column joints or rack issues rather than a non-existent hydraulic pump.
• Ensure the 12V electrical system and battery are healthy, low voltage can trigger EPS warnings or reduced assist.

Put simply, anyone searching for a power-steering pump on a 2018 Toyota Crown will come up empty because the car doesn’t use one. The steering assist comes from an electric motor on the rack, as documented in Toyota’s EPS system descriptions and illustrated parts catalogues for the model year.

FAQs

Does the 2018 Toyota Crown have a power-steering pump?
No. The 2018 Crown uses Electric Power Steering (EPS), which provides assist via an electric motor on the steering rack. Toyota’s Repair Manual and New Car Features for the S220-series describe the EPS system, and the parts catalogue lists no hydraulic pump, hoses, or reservoir for this model year.

What should be serviced instead of a hydraulic power-steering pump?
Focus on EPS health: inspect the rack boots, check wheel alignment and tyre pressures, verify there are no EPS fault codes after any suspension or electrical work, and confirm the 12V battery is in good nick. If the EPS warning light shows or the steering feels notchy or heavy, a scan and calibration per the Toyota Repair Manual is the next step.

Can a hydraulic pump be retrofitted to a 2018 Crown?
It’s not practical. The chassis, steering rack, electronics, and safety systems are engineered for EPS. Retrofitting a hydraulic system would require major component changes and would compromise integration with driver-assist features, making it costly and risky compared with maintaining the factory EPS.