Toyota Diesel OEM 10-Blade Radiator Cooling Fan Pickup 2LT, 5L, 5LE, 1KZ-T, 1KZ-TE Hilux Surf 16361-54131

Product Overview

Genuine OEM Toyota 10-blade radiator cooling fan compatible with 1997-2005 Toyota Hilux, 4Runner, and Fortuner diesel models. This essential cooling system component delivers superior airflow compared to standard 7-blade fans, providing enhanced cooling performance for demanding diesel applications. This OEM part is a perfect direct replacement, offering Toyota-quality construction and optimal cooling efficiency.

OEM Part Number(s):

• 16361-54131

 

Key Features & Benefits

• Superior Airflow: 10-blade design provides significantly more airflow than standard 7-blade fans
• Quality Construction: Genuine OEM curved blade design with durability-tested plastic construction
• Performance Upgrade: Ideal for heavy towing, high ambient temperatures, or modified diesel engines
• Direct Replacement: Perfect fit for OEM fan clutch assembly with no modifications required
• Value: Proven cooling upgrade at a fraction of aftermarket performance fan costs

Technical Specifications

Part Type: Engine Radiator Cooling Fan Blade Assembly
Blade Count: 10 blades (curved design)
Diameter: 17¾ inches (450mm)
Material: High-strength molded plastic
Engine Compatibility: 2LT, 5L, 5LE, 1KZ-T, 1KZ-TE diesel engines

Fitment

Year Range	Toyota Model	Engine Options
1997-2005	Hilux 2WD/4WD (LN147, LN152, LN167, LN172)	2LT, 5L, 5LE, 1KZ-T, 1KZ-TE
1997-2005	4Runner / Hilux Surf (KZN165, KZN185, KZN205)	1KZ-T, 1KZ-TE 3.0L turbo diesel
1997-2004	Pickup Truck (various markets)	2LT, 5L, 5LE diesel engines

Important: This 10-blade fan is specifically designed for diesel engines, providing superior cooling performance. Verify engine code compatibility before purchase. Compatible with OEM fan clutch assemblies. 

Installation & Maintenance

Installation Difficulty: Beginner to Intermediate
Estimated Install Time: 30-60 minutes
Tools Required: Fan clutch removal tool, socket set, torque wrench
Professional Installation: Optional - straightforward replacement for experienced DIY mechanics

Maintenance Tips:

• Inspect fan blades regularly for cracks or damage from road debris
• Check fan clutch operation during installation for optimal cooling performance
• Clean radiator fins when replacing the fan for maximum cooling efficiency
• Balance check the fan assembly if vibration occurs after installation

 

Frequently Asked Questions

Q: What's the advantage of 10 blades vs seven blades?
A: The 10-blade design moves significantly more air at lower RPMs, providing superior cooling performance, especially beneficial for diesel engines, towing applications, and hot climate operation. 

Q: Will this fit my existing fan clutch?
A: Yes, this fan blade assembly is designed to fit OEM Toyota fan clutch assemblies. The mounting pattern is identical to the original equipment. 

Related Toyota Parts You May Need

• Fan Clutch Assembly - Often replaced during fan blade service
• Radiator Cap - Inspect and replace for proper cooling system pressure
• Thermostat - Lower temperature option for enhanced cooling
• Water Pump Assembly - Complete cooling system service components

 

Common Symptoms of Fan Blade Failure

• Visible cracks or missing blade segments from impact damage
• Engine running hotter than usual, especially at idle or low speeds
• Unusual vibration or noise from cooling fan operation
• Poor cooling performance during heavy loads or towing
• Fan blade imbalance is causing excessive wobble

 

Why Upgrade to the 10-Blade Fan?

Classic Performance Upgrade: This 10-blade fan is considered a "must-have upgrade" for Toyota diesel engines. The additional blades provide superior airflow characteristics, allowing for the movement of more air at lower engine RPMs for enhanced cooling efficiency. 

Toyota diesel enthusiasts consistently report improved cooling performance, which is especially beneficial for vehicles used in demanding conditions, such as heavy towing, off-road driving, or operation in high ambient temperatures. The larger blade count also provides more consistent airflow across varying engine speeds. 

This genuine OEM upgrade offers proven cooling enhancement without the complexity and cost of aftermarket electric fan conversions. Ideal for maintaining a reliable mechanical cooling system while significantly enhancing performance.