A-Premium Engine Water Pump for Subaru, Scion FR-S & Toyota 86 — Aluminum Housing, Steel Impeller

The A-Premium Engine Water Pump is a direct-fit, aluminum-housed coolant pump engineered to replace original equipment on select Subaru, Scion FR-S and Toyota 86 models, restoring reliable coolant circulation for safe engine temperature control.

This replacement water pump is built to match OEM mounting and flow characteristics for a straightforward swap on compatible AWD and RWD Boxer-engined vehicles. Constructed with a steel impeller and a durable aluminum housing, the unit is designed to reproduce factory performance while meeting strict manufacturing and testing standards. It includes the common reference numbers used by technicians for quick identification and comes with a one-year unlimited-mileage warranty for added assurance.

Which vehicles will this water pump fit?

The A-Premium pump covers a broad range of Subaru models and key sports-coupe variants from Scion and Toyota. Fitment follows original equipment specifications so it aligns with factory mounting points and coolant passages on the listed models.

• Scion FR-S: 2013–2016
• Subaru BRZ: 2013–2020; Toyota 86: 2017–2020
• Subaru Crosstrek/XV, Forester, Impreza, Legacy, Outback: various years 2010–2019 as listed
• Cross-check reference numbers 160-1250, AW9384, 41088, W2427M, 21110AA690, SU00300401 for exact match

How is the pump constructed and what are the key specifications?

This pump uses an aluminum housing for strength and heat dissipation and a steel impeller built with seven vanes rotating in the reverse direction specified by the original design. Mounting provisions and the hub hole pattern mirror the OEM part to simplify installation and alignment with the serpentine-belt drive.

• Housing material: aluminum for rigidity and thermal transfer
• Impeller: steel, 7 vanes, reverse rotation
• Mounting holes: 5; hub hole count matches original
• Drive type: serpentine belt compatible

What performance and reliability benefits can I expect?

The pump is manufactured and bench-tested to maintain consistent coolant pressure and flow, supporting stable engine temperatures under normal driving conditions. While not a cure-all, replacing a worn pump with this unit reduces the risk of overheating caused by impeller deterioration or seal failure.

• Delivers pressurized coolant flow to remove engine heat effectively
• Bench-tested to meet performance tolerances comparable to OEM parts
• Durable materials reduce premature wear and cavitation risk
• One-year unlimited-mileage warranty covers manufacturing defects

What reference numbers and fitment checks should I use before buying?

Always verify compatibility by matching the reference numbers and cross-checking year and model information. The pump lists several common OEM and aftermarket references used by repair shops and parts catalogs to ensure you order the correct replacement.

• Common reference numbers: 160-1250, AW9384, 41088, W2427M
• OEM codes: 21110AA690, SU00300401 for direct cross-reference
• Confirm vehicle year, model, and engine code before purchase
• Check mounting hole count (5) and hub hole pattern against the original part

Who is this for? Owners, independent mechanics, and fleet technicians who need a dependable, direct-fit water pump replacement for Subaru BRZ, Crosstrek, Forester, Impreza, Legacy, Outback, Scion FR-S, or Toyota 86 vehicles will find this A-Premium unit suited to routine repair and preventive maintenance. It's appropriate when the original pump shows signs of leakage, noise, cavitation, or reduced coolant circulation and when you want an aftermarket part built to match factory specifications and backed by a one-year unlimited-mileage warranty.