AISIN Water Pump | 20R / 22R / 22RE / 22R-TE (1984-95 4Runner / 1979-95 Pickup)

AISIN Water Pump

For 1984–1995 Toyota 4Runner and 1979–1995 Toyota Pickup with 20R, 22R, 22RE, or 22R-TE engines

Overview

The AISIN water pump is an OE-manufacturer replacement for Toyota R-series four-cylinder cooling systems. This combined listing covers the early 2.2L/2.4L truck application and the later 2.4L application with two fitment-specific pump configurations.

AISIN water pumps use an aluminum die-cast housing and stamped-steel impeller for a factory-style mechanical, belt-driven cooling-system service replacement. Select the variant that matches the vehicle year range below.

Key Features

• AISIN OE-manufacturer replacement for Toyota R-series engine applications
• Direct-replacement mechanical water-pump design
• Cast-aluminum housing for strength with reduced weight
• Stamped-steel impeller
• New replacement component — not remanufactured
• Water-pump gasket included
• Fan-clutch mounting studs included
• Two fitment-specific configurations covering 1979–1995 Toyota Pickup and 1984–1995 Toyota 4Runner four-cylinder applications

Early vs. Late Water Pump

Early Configuration — 1984 4Runner / 1979–1984 Pickup
Designed for the early R-series cooling-system arrangement used with the 2.2L 20R and 2.4L 22R. Hub height is 66.3 mm.

Late Configuration — 1985–1995 4Runner / Pickup
Designed for the later 2.4L cooling-system arrangement used with 22R, 22RE, and 22R-TE applications. Hub height is 69.5 mm.

Choose the configuration by vehicle year/application rather than by appearance alone.

Vehicle Fitment

Toyota 4Runner

• 1984 | 1st Gen — 2.4L 22R
• 1985–1989 | 1st Gen — 2.4L 22R / 22RE / 22R-TE, as factory equipped
• 1990–1995 | 2nd Gen — 2.4L 22RE

Toyota Pickup

• 1979–1980 | 1st Gen — 2.2L 20R
• 1981–1983 | 1st Gen — 2.4L 22R
• 1984 | 2nd Gen — 2.4L 22R
• 1985–1988 | 2nd Gen — 2.4L 22R / 22RE / 22R-TE, as factory equipped
• 1989–1995 | 3rd Gen — 2.4L 22R / 22RE, as factory equipped

Fitment Notes

• Four-cylinder R-series applications only.
• The early configuration fits the 1979–1984 Pickup and 1984 4Runner applications listed above.
• The late configuration fits the 1985–1995 4Runner and Pickup applications listed above.
• 20R fitment is limited to 1979–1980 Toyota Pickup.
• Does not fit 3.0L 3VZ-E V6 applications.
• Pulley and fan clutch are not included.
• Verify the installed engine and cooling-system configuration on engine-swapped vehicles.

Product Specifications

Brand: AISIN
Product Type: Engine Water Pump
Component Type: Water Pump
Construction: Cast-Aluminum Housing / Stamped-Steel Impeller
Drive Type: Mechanical / Belt-Driven
Condition: New
Manufacturer Type: OE-Manufacturer Replacement

Available Configurations

1984 4Runner / 1979–1984 Pickup

Includes:

• (1) AISIN water pump assembly
• (1) Water-pump gasket
• Fan-clutch mounting studs

For early 20R / 22R applications with the 66.3 mm hub-height pump.

1985–1995 4Runner / Pickup

Includes:

• (1) AISIN water pump assembly
• (1) Water-pump gasket
• Fan-clutch mounting studs

For later 22R / 22RE / 22R-TE applications with the 69.5 mm hub-height pump.