labwork Windscreen Washer Reservoir with Pump for Toyota Corolla / Geo Prizm 1998–2002 1.8L — Direct-Fit, Crack-Resistant

If the washer fluid light is on, your washer struggles to spray, or you see fluid pooling under the car, a failing reservoir or pump assembly is a common cause. This labwork assembly is engineered to match factory fit and function for 1.8L Corolla/Prizm vehicles from 1998 through 2002, using durable materials to resist cracks and leaks for extended service life.

Will this reservoir fit my Corolla or Prizm?

Yes — the unit is manufactured as a direct replacement sized to factory specifications for 1998–2002 Toyota Corolla and Geo Prizm 1.8L models. Confirm compatibility by matching the listed part numbers with your vehicle or checking physical mounting points before ordering.

• Fits 1998–2002 Toyota Corolla and Geo Prizm 1.8L
• Replacement for part numbers 85315-02030, 8531601011, 8531502030, TO1288141
• Designed to use original mounting locations and hose connections
• Verify model year and engine size to ensure a correct match

How durable and reliable is this replacement tank?

labwork builds this reservoir from quality plastics that resist impact and chemical wear from washer fluids. The assembly is intended to limit cracking and leaks, giving you a longer service interval than older, degraded tanks.

• Made from durable, crack-resistant materials
• Includes integrated pump for a complete replacement solution
• Seals and outlets molded for consistent fluid containment
• Tested to match factory performance expectations

How easy is installation for a DIYer?

Installation is straightforward for anyone comfortable with basic under-hood work and hand tools; the reservoir is built to factory dimensions so it drops into the original mounting points. Most installs involve disconnecting electrical connectors and fluid hoses, removing a few fasteners, and reversing the steps to fit the new assembly.

• Direct-fit design reduces modification needs
• Requires disconnecting the old pump electrical connector and hose
• Typical install time: 30–90 minutes depending on access and experience
• Have a small drain container and basic hand tools handy

What should I check after replacing the reservoir and pump?

After installation, fill the tank with washer fluid and test spray cycles to confirm pump operation, inspect for leaks, and ensure the washer jets respond correctly. Re-check hose clamps and electrical connections after the first drive to make sure everything remains secure.

• Refill with recommended washer fluid and test spray output
• Inspect around the tank for any drips or loose fittings
• Verify washer warning lights and jet aim if necessary
• Retighten clamps after initial use if needed

Who is this for: This labwork reservoir and pump assembly is for owners, DIY mechanics, and independent shops working on 1998–2002 Toyota Corolla or Geo Prizm 1.8L vehicles that need a dependable replacement for a cracked tank, failed pump, or persistent washer fluid loss. It’s a practical option when you want a factory-style fit, a complete pump-included solution, and longer-lasting plastic construction without modifying mounting points or hoses.