5VZ 3.4L Water Pump With Coolant Tube Tacoma Tundra T-100 16100-69395-83

Product Overview

Genuine Toyota OEM water pump assembly designed for 5VZ-FE 3.4L V6 engines with oil cooler provision. This critical cooling system component delivers reliable coolant circulation and optimal engine temperature regulation for Toyota trucks and SUVs. This factory-engineered water pump ensures precise fitment and long-lasting performance for your 3.4L V6 engine.

OEM Part Number(s):

• 16100-69395 (primary)
• 16100-69395-83 (with gasket kit)
• 16100-69396 (superseded equivalent)
• 16100-69397 (superseded equivalent)
• 16100-69398-83 (later superseded)
  

 

Key Features & Benefits

• Genuine Toyota Quality: Factory-engineered to exact OEM specifications for guaranteed fitment and performance
• Oil Cooler Compatible: Includes provision for engine oil cooler connection (can be capped if not used)
• Complete Assembly: Includes pulley, gasket, and all necessary hardware for installation
• Timing Belt Service: Essential replacement component during timing belt maintenance intervals
• Premium Materials: Aluminum die-cast housing with steel impeller for optimal durability and heat dissipation

 

Technical Specifications

Part Type: Engine Water Pump Assembly
Engine Compatibility: 5VZ-FE 3.4L V6 DOHC 24-valve
Housing Material: Cast aluminum alloy
Impeller Material: Steel (6 vanes)
Impeller Rotation: Standard (clockwise)
Drive Type: Timing belt driven
Mounting Holes: 10 bolt pattern
Oil Cooler Provision: Yes (includes coolant outlet pipe)

Fitment

Year Range	Toyota Model	Engine
1996-2002	4Runner	3.4L V6 5VZ-FE
1995-2003	Tacoma	3.4L V6 5VZ-FE
1994-1998	T100	3.4L V6 5VZ-FE
2000-2003	Tundra	3.4L V6 5VZ-FE
1996-2002	Land Cruiser Prado (select markets)	3.4L V6 5VZ-FE

Important: This water pump includes an oil cooler provision outlet. If your vehicle does not have an engine oil cooler, the coolant outlet can be capped off. Verify your engine configuration before ordering. Must be replaced during timing belt service per the Toyota maintenance schedule.

Installation & Maintenance

Installation Difficulty: Intermediate 
Tools Required: Complete timing belt tool set, torque wrench, coolant drain pan, pulley removal tools
Professional Installation: Highly Recommended - requires timing belt removal and precise coolant system procedures

Maintenance Tips:

• Replace the water pump during every timing belt service (90,000-mile intervals)
• Inspect the weep hole for coolant leakage, indicating seal failure
• Apply proper sealant to the water pump gasket surfaces per Toyota specifications
• Use only genuine Toyota Red Coolant for optimal corrosion protection and longevity

Frequently Asked Questions

Q: Does this water pump include the gasket?
A: Yes, part number 16100-69395-83 includes the water pump gasket. The base part number is 16100-69395.

Q: What's the difference between 16100-69395 and 16100-69398?
A: These are the same water pump with running changes and supersessions. Both include oil cooler provision and are functionally interchangeable for 5VZ-FE engines.

Q: Can I use this water pump if my vehicle doesn't have an oil cooler?
A: Yes, the oil cooler outlet pipe can be capped off if your vehicle is not equipped with an engine oil cooler. Use an appropriate cap or plug to seal the outlet.

Q: How do I know if my water pump is failing?
A: Common symptoms include coolant leaking from the weep hole, grinding or squealing noise from worn bearings, visible play in the pulley when rocked up and down, or engine overheating.

Related Toyota Parts You May Need

• Timing Belt Kit - Always replace the water pump during timing belt service.
• Thermostat Assembly - Recommended replacement during water pump service
• Toyota Red Coolant - Required for cooling system refill
• Oil Cooler Hose - Water pump to oil cooler connection if equipped

 

Common Symptoms of Water Pump Failure

• Coolant is leaking from the weep hole beneath the water pump pulley
• Grinding, squealing, or howling noise from water pump bearing failure
• Visible play or wobble in the water pump pulley when manually rocked
• Engine overheating due to reduced coolant circulation
• Low coolant level without visible external leaks

 

Why Replace Your Water Pump with a Genuine Toyota OEM

Critical Cooling System Component: The water pump is the heart of your 5VZ-FE cooling system, circulating coolant through the engine block, cylinder heads, and radiator to maintain optimal operating temperature. Water pump failure can result in catastrophic engine damage from overheating, making this one of the most critical maintenance items on your Toyota.

Toyota engineers designed the 16100-69395 water pump specifically for the unique cooling requirements of the 3.4L V6 engine. The precisely calibrated impeller design ensures proper coolant flow rates, while the aluminum die-cast housing provides superior heat dissipation and weight reduction without sacrificing strength.

Professional technicians universally recommend water pump replacement during timing belt service because both components require similar labor for access. Since the water pump is already exposed during timing belt replacement, it makes economic sense to install a new pump rather than risk premature failure shortly after completing the timing belt job.

Genuine Toyota water pumps use premium bearings, seals, and materials that provide reliable service for the full 90,000-mile timing belt interval. Aftermarket alternatives may save a few dollars initially, but inferior bearing quality or seal materials can lead to premature failure - requiring the entire timing belt service labor to be repeated.

The oil cooler provision on this water pump ensures compatibility with all 5VZ-FE engine configurations, whether equipped with the factory oil cooler or not. This versatility makes it the correct replacement for the majority of 3.4L V6 applications.

Invest in genuine Toyota OEM quality for your water pump replacement and ensure another 90,000 miles of reliable cooling system operation. Your 5VZ-FE engine deserves the same precision-engineered components that made it legendary for durability and longevity.