A-Premium Windshield Washer Reservoir Tank Assembly for Toyota Tacoma 1998–2004 — 2.5L pump-ready with filler neck & cap

The A-Premium Windshield Washer Reservoir Tank Assembly is a direct-fit 2.5-liter replacement designed for Toyota Tacoma models from 1998 to 2004, supplying a complete filler neck, cap, hose and pump-ready housing.

If your factory washer reservoir is cracked, leaking, or missing parts, this A-Premium assembly gives you a ready-to-install solution engineered to match original mounting points and plumbing for selected Tacoma years. Built from durable plastics and finished with the included cap and filler neck, it accepts the standard washer pump and leaves an opening for an optional fluid-level sensor—note that the sensor itself is not supplied.

Will this reservoir fit my truck?

Compatibility is intended for Toyota Tacoma (1998–2004). Before ordering, use your vehicle’s year, make and model selector to confirm fit. The tank matches OEM-style attachment locations and plumbing for those model years, but it does not include mounting brackets.

• Vehicle fitment: Toyota Tacoma 1998–2004
• Confirm by selecting Year/Make/Model at checkout
• Reference numbers for cross-checking: 12498759, 8531504060, TO1288184

What parts are included and what do I still need?

The assembly ships with the filler neck, cap, hose and an inlet ready for the standard washer pump; the pump is expected to be installed into the housing. A fluid-level sensor is not included—only the sensor hole is present. There is no drain plug in this design, so plan for fluid removal if needed during service.

• Included: cap, filler neck, hose, 1 washer pump inlet, 2-pin terminal connection
• Not included: fluid-level sensor and mounting bracket
• Bottom opening: sensor installation point, not a drain plug

How durable and reliable is this replacement tank?

A-Premium manufactures this reservoir from impact-resistant plastic designed for automotive under-hood exposure. The tank arrives ready to accept OEM-style pump and electrical connections and is backed by a one-year unlimited-mileage guarantee from the brand. While the housing is made for long service life, follow proper installation steps to avoid stress on mounting points and hoses.

• Material: durable automotive-grade plastic
• Electrical: 2-pin terminal compatibility for pump wiring
• Warranty: one-year unlimited-mileage guarantee from A-Premium

How do I install the tank and prepare it for use?

Installation involves removing the old reservoir, transferring any reusable fittings, and securing the new tank in the original mounting locations. Thread the filler neck and attach the hose, insert the washer pump into the pump port, and connect the 2-pin wiring. If you require a fluid-level indicator, purchase a compatible sensor to install in the provided hole at the bottom.

• Remove old tank and clean surrounding area
• Install tank, attach filler neck, hose and pump, then connect wiring
• Optional: fit a compatible fluid-level sensor into the bottom hole

Who is this for: This reservoir assembly is aimed at Toyota Tacoma owners and mechanics who need a reliable, OEM-style replacement for 1998–2004 trucks. It suits DIYers who can handle basic under-hood swaps and professionals who prefer a ready-to-fit housing that accepts standard pumps and wiring. Choose this part when you want a durable 2.5-liter tank with included cap and filler neck, but be prepared to source a separate sensor or bracket if required for your vehicle’s configuration.