AISIN Water Pump | 3.0L 3VZ-E With Factory Oil Cooler (1988-95 4Runner / Pickup)

AISIN Water Pump

For 1988–1995 Toyota 4Runner and Pickup with the 3.0L 3VZ-E V6 and factory oil cooler. Choose the correct pump by production date and timing-belt tensioner type.

Overview

AISIN is the OE water-pump manufacturer associated with these Toyota 3VZ-E applications, giving owners an AISIN-branded replacement built around the same OE engineering pedigree as the factory cooling system. These water pumps are specifically for 3VZ-E engines equipped with the factory oil cooler.

Toyota changed the 3VZ-E water-pump and timing-belt tensioner arrangement during 1992. Early applications use a spring-style tensioner, while later applications use a hydraulic tensioner, so production date must be verified before ordering.

Key Features

• OE-manufacturer replacement for Toyota 3.0L 3VZ-E cooling systems
• Factory oil-cooler applications only
• Mechanical, timing-belt-driven design
• Cast-aluminum housing
• Two production-specific configurations covering the 1992 tensioner change
• New replacement pump; not remanufactured

Choosing the Correct Water Pump

1988–08/1992 production: choose the spring-tensioner configuration.

09/1992–1995 production: choose the hydraulic-tensioner configuration.

Verify the vehicle production date before ordering. Vehicles near the 1992 changeover should not be identified by model year alone.

Vehicle Fitment

Toyota 4Runner

• 1988–1989 | 1st Gen — 3.0L 3VZ-E V6 — factory oil cooler
• 1990–1995 | 2nd Gen — 3.0L 3VZ-E V6 — factory oil cooler

Toyota Pickup

• 1988 | 2nd Gen — 3.0L 3VZ-E V6 — factory oil cooler
• 1989–1995 | 3rd Gen — 3.0L 3VZ-E V6 — factory oil cooler

Fitment Notes

• 3.0L 3VZ-E V6 with factory oil cooler only.
• Does not cover non-oil-cooler water-pump configurations.
• Production date and timing-belt tensioner type must match the selected configuration.
• The factory oil cooler and timing-belt tensioner are not included.
• Water-pump replacement requires timing-belt system access; inspect the belt, idlers, tensioner components, coolant hoses, and sealing surfaces during service.

Product Specifications

Brand: AISIN
Product Type: Cooling
Component Type: Water Pump
Engine: 3.0L 3VZ-E V6
Oil Cooler: Factory oil cooler required
Drive Type: Mechanical, timing-belt driven
Housing Material: Cast aluminum
Condition: New
Manufacturer Type: OE manufacturer

Available Configurations

1988–08/1992 — With Oil Cooler — Spring Tensioner

• (1) AISIN water pump for early-production 3VZ-E applications with the factory oil cooler and spring-style timing-belt tensioner

09/1992–1995 — With Oil Cooler — Hydraulic Tensioner

• (1) AISIN water pump for late-production 3VZ-E applications with the factory oil cooler and hydraulic timing-belt tensioner