Toyota 1KZ-TE Diesel Solid Single-Mass Flywheel (SMF) – Hilux Surf HiAce 4Runner Prado

Ships in 3-4 weeks from the date of purchase. An estimated ship date is provided within 24 hours (M-F) of purchase. 

Product Overview

Solid mass flywheel compatible with 1995-2000 Toyota Hilux Surf, 4Runner, Land Cruiser Prado, and Hilux models with 1KZ-TE 3.0L turbo diesel engines. This professional-grade single-mass flywheel provides a reliable, cost-effective alternative to expensive dual-mass flywheels, delivering exceptional durability for demanding turbo-diesel applications. This CI premium solid flywheel conversion eliminates the common failure points of dual-mass designs while maintaining proper clutch engagement and smooth power delivery.

Key Features & Benefits

• Superior Durability: Solid steel construction eliminates internal spring failures common in dual-mass designs
• Resurfaceable Design: Can be machined during future clutch services for extended service life
• Heat Resistance: Solid steel construction provides superior heat dissipation and warp resistance
• OEM Quality Standards: CI premium specification meets or exceeds OEM quality requirements

 

Technical Specifications

Part Type: Solid Single Mass Flywheel (SMF)
Material: High-grade steel construction
Engine Compatibility: 1KZ-TE 3.0L turbo diesel
Clutch Diameter: 260mm (10.2 inches)
Design: Single mass solid construction with replaceable friction surface
Weight: Approximately 18-20 lbs (optimized for turbo diesel torque characteristics)
Torque Specification: 145 Nm (107 ft-lb) flywheel bolts
Includes: Dowel kit (flywheel bolts sold separately - reuse OEM bolts)

 

Fitment

Year Range	Toyota Model	Engine
1995-2000	Hilux Surf (KZN185)	1KZ-TE 3.0L turbo diesel
1993-2002	4Runner / Hilux Surf (KZN130, KZN185)	1KZ-TE 3.0L turbo diesel
1996-2002	Land Cruiser Prado (KZJ90, KZJ95)	1KZ-TE 3.0L turbo diesel
1993-2005	Hilux (various markets)	1KZ-TE 3.0L turbo diesel
1993-2004	Hiace	1KZ-TE 3.0L turbo diesel

Important: This solid mass flywheel requires a compatible sprung clutch disc (not included). Verify your vehicle was initially equipped with a dual-mass flywheel before ordering this conversion. Manual transmission vehicles only. Professional installation strongly recommended.

Installation & Maintenance

Installation Difficulty: Advanced/Professional
Tools Required: Complete transmission jack, flywheel holding tool, torque wrench, clutch alignment tool, basic hand tools
Professional Installation: Strongly recommended - requires precision alignment and proper torque procedures

Maintenance Tips:

• Replace the clutch assembly and pilot bearing simultaneously during flywheel installation
• Use genuine Toyota flywheel bolts torqued to exact specifications (145 Nm / 107 ft-lb)
• Resurface the flywheel during future clutch replacements if within manufacturer specifications
• Minor gear rattle at idle is usual with solid flywheel conversions - pressing the clutch pedal eliminates the noise

 

Frequently Asked Questions

Q: What's included with this flywheel?
A: This package includes the single solid mass flywheel and dowel kit. Flywheel bolts are NOT included - you must reuse your original OEM flywheel bolts. A compatible sprung-clutch kit is required and sold separately.

Q: What are the differences between single mass and dual mass flywheels?
A: Dual-mass flywheels use internal springs to dampen vibrations, but are expensive and cannot be resurfaced. Single-mass flywheels are solid-steel construction, cost significantly less, can be machined, and offer superior heat resistance. Trade-offs include slightly increased gear rattle at idle and firmer clutch engagement feel.

Q: Will I notice increased vibration or noise?
A: You may experience minor transmission gear rattle at idle with the clutch engaged, which is normal for solid flywheel conversions. This noise disappears when pressing the clutch pedal or when driving. The 1KZ-TE's four-cylinder turbo diesel engine may transmit slightly more vibration than dual-mass designs, but most drivers find the trade-off acceptable given the cost savings and reliability improvements.

Q: Can this flywheel be resurfaced during future clutch replacements?
A: Yes! Unlike dual-mass flywheels that must be replaced entirely, this solid flywheel can be machined/resurfaced during future clutch services if within manufacturer specifications, providing significant long-term cost savings.

Related Toyota Parts You May Need

• Single Solid Mass Clutch Kit - Required for solid flywheel conversion
• Pilot Bearing - Essential replacement during flywheel service
• Clutch Release Bearing - Replace during flywheel installation
• Transmission Input Shaft Seal - Prevent leaks with a fresh seal during service
• Rear Main Seal - Recommended replacement during transmission removal

 

Common Symptoms of Dual-Mass Flywheel Failure

• Excessive rattling or knocking noise from the transmission bellhousing area
• Vibration felt through the clutch pedal during engagement
• Difficulty shifting gears or grinding during shifts
• The Clutch is slipping under load despite the recent clutch replacement
• Shuddering during engine shutdown or startup

The Smart Alternative to Expensive Dual-Mass Flywheels: Toyota's 1KZ-TE turbo diesel engines were initially equipped with dual-mass flywheels in many markets, particularly in the Japanese domestic market (JDM) Hilux Surf and import Land Cruiser Prado models. While dual-mass flywheels provide excellent vibration dampening, they are notorious for expensive failures and cannot be resurfaced during clutch replacements.

The CI Premium solid mass flywheel represents over 60 years of Australian clutch engineering expertise, specifically designed for the demanding torque characteristics of the 1KZ-TE turbo diesel. This conversion mirrors the factory specification used on UK-market Toyota 4Runner models, which came standard with a solid flywheel.

Built for Turbo Diesel Durability: The solid steel construction handles the 1KZ-TE's 343 Nm (253 ft-lb) of torque with ease, providing superior heat dissipation during towing, off-road driving, and extended highway use. The single-piece design eliminates the internal-spring failures that plague dual-mass flywheels, particularly in heavy-duty applications.

Understanding the Trade-Offs: While solid mass flywheels offer superior reliability and cost-effectiveness, drivers should understand the differences. You may notice mild transmission gear rattle at idle when the clutch is engaged - this is entirely normal and does not indicate a problem. Pressing the clutch pedal eliminates this noise. Clutch engagement may feel slightly firmer compared to dual-mass systems, though most drivers adapt quickly and appreciate the more direct mechanical feel.

Note: This conversion requires a compatible sprung clutch disc for proper vibration damping. We recommend using premium clutch kits from Aisin or equivalent manufacturers designed for solid flywheel applications.