Home » AISIN OE Engine Oil Pump | 20R / 22R / 22RE / 3VZ-E (1984-95 4Runner / 1979-95 Pickup)
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AISIN OE Engine Oil Pump | 20R / 22R / 22RE / 3VZ-E (1984-95 4Runner / 1979-95 Pickup)

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AISIN OE Engine Oil Pump

For 1984–1995 Toyota 4Runner and 1979–1995 Toyota Pickup with 20R, 22R, 22RE, 22R-TE, or 3VZ-E engines

Overview

AISIN engine oil pumps provide a direct-fit replacement for Toyota R-series four-cylinder and 3.0L 3VZ-E V6 applications, with three engine- and production-specific configurations covering 1979–1995 Pickup and 1984–1995 4Runner models.

OE Manufacturer Advantage: AISIN is a Tier 1 original-equipment supplier to Toyota, and AISIN oil pumps are engineered alongside vehicle manufacturers and produced using OE manufacturing processes. These AISIN-branded pumps deliver 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 for strength with reduced weight
  • Designed to deliver proper engine-oil pressure and circulation without unnecessary engine load
  • Three fitment-specific configurations for early R-series, later R-series, and 3.0L 3VZ-E engines
  • New replacement component — not remanufactured

Which Oil Pump Fits Your Toyota?

Early 20R / 22R — Through 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. This configuration also fits factory 22R-TE turbo applications and is intended for the standard single-row timing-chain setup.

3.0L 3VZ-E — 1988–1995
Use for Toyota 4Runner and Pickup applications equipped with the 3.0L 3VZ-E V6.

Vehicle Fitment

Toyota 4Runner

  • 1984 | 1st Gen — 2.4L 22R
  • 1985 | 1st Gen — 2.4L 22RE
  • 1986–1987 | 1st Gen — 2.4L 22RE / 22R-TE
  • 1988–1989 | 1st Gen — 2.4L 22RE / 3.0L 3VZ-E
  • 1990–1995 | 2nd Gen — 2.4L 22RE / 3.0L 3VZ-E

Toyota Pickup

  • 1979–1980 | 1st Gen — 2.2L 20R
  • 1981–1983 | 1st Gen — 2.4L 22R
  • 1984 | 2nd Gen — 2.4L 22R
  • 1985 | 2nd Gen — 2.4L 22R / 22RE
  • 1986–1987 | 2nd Gen — 2.4L 22R / 22RE / 22R-TE
  • 1988 | 2nd Gen — 2.4L 22R / 22RE / 22R-TE / 3.0L 3VZ-E
  • 1989–1990 | 3rd Gen — 2.4L 22R / 22RE / 3.0L 3VZ-E
  • 1991–1995 | 3rd Gen — 2.4L 22RE / 3.0L 3VZ-E

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.
  • Later R-series configuration: intended for the factory-style single-row timing-chain setup used with later 22R, 22RE, and 22R-TE engines. Engines converted to a dual-row timing set may require the early-style pump.
  • 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 Oil Pump
Component Type: Oil Pump
OE Relationship: Toyota OE Supplier / OE-Manufacturer Replacement
Construction: Aluminum Die-Cast Pump Housing
Function: Engine Oil Circulation and Pressure
Condition: New
Quantity: One Oil Pump Assembly per Vehicle

Available Configurations

Early 20R / 22R — Through 07/1984

Includes:

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

For early 20R and 22R applications through July 1984 production.

22R / 22RE — 08/1984–1995

Includes:

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

For later 22R, 22RE, and 22R-TE applications using the factory-style single-row timing-chain setup.

3.0L 3VZ-E — 1988–1995

Includes:

  • (1) AISIN engine oil pump assembly

For Toyota 4Runner and Pickup applications equipped with the 3.0L 3VZ-E V6.