AISIN OE Engine Oil Pump | 20R / 22R / 22RE (1984-95 4Runner / 1979-95 Pickup)

AISIN OE Engine Oil Pump

For 1984–1995 Toyota 4Runner with 22R / 22RE and 1979–1995 Toyota Pickup with 20R / 22R / 22RE

Overview

AISIN engine oil pumps provide a direct-fit replacement for Toyota R-series four-cylinder applications, with two production-specific configurations covering 1979–1995 Toyota Pickup and 1984–1995 Toyota 4Runner models.

OE Manufacturer Advantage: AISIN is a Tier 1 original-equipment supplier to Toyota. These AISIN-branded pumps are engineered for factory-style fit, oil pressure, and lubrication performance without being represented as Genuine Toyota boxed parts.

Key Features

• OE-manufacturer replacement from AISIN for verified Toyota applications
• Aluminum die-cast construction
• Designed to provide proper engine-oil pressure and circulation
• Two fitment-specific configurations for early and later R-series engines
• New replacement component — not remanufactured

Which Oil Pump Fits Your Toyota?

Early 20R / 22R — 1979–07/1984
Use for 20R and early 22R applications through July 1984 production.

22R / 22RE — 08/1984–1995
Use for later 22R and 22RE applications beginning with August 1984 production.

Vehicle Fitment

Toyota 4Runner

• 1984 Toyota 4Runner – 1st Gen — 22R
• 1985 Toyota 4Runner – 1st Gen — 22R / 22RE
• 1986–1989 Toyota 4Runner – 1st Gen — 22RE
• 1990–1995 Toyota 4Runner – 2nd Gen — 22RE

Toyota Pickup

• 1979–1980 Toyota Pickup – 1st Gen — 20R
• 1981–1983 Toyota Pickup – 1st Gen — 22R
• 1984–1988 Toyota Pickup – 2nd Gen — 22R / 22RE
• 1989–1990 Toyota Pickup – 3rd Gen — 22R / 22RE
• 1991–1995 Toyota Pickup – 3rd Gen — 22RE

Fitment Notes

• 1984 four-cylinder applications use a production-date split. Builds through 07/1984 use the early pump; builds from 08/1984 use the later R-series pump.
• 3VZ-E applications are not included in this listing. The 3VZ-E oil pump is listed separately.
• For engine-swapped vehicles, match the oil pump to the installed engine and timing configuration rather than chassis year alone.

Product Specifications

Brand: AISIN
Product Type: Engine
Component Type: Oil Pump
Engines: 20R / 22R / 22RE
OE Relationship: Toyota OE Supplier / OE-Manufacturer Replacement
Construction: Aluminum Die-Cast Pump Housing
Function: Engine Oil Circulation and Pressure
Condition: New

Supporting Components

Servicing a later 22R or 22RE front-engine assembly? See the AISIN Engine Timing Cover Assembly for the related timing-cover application.

Available Configurations

Early 20R / 22R — 1979–07/1984

• (1) AISIN engine oil pump assembly
• (1) Oil-pump O-ring gasket

22R / 22RE — 08/1984–1995

• (1) AISIN engine oil pump assembly
• (1) Oil-pump O-ring