HKS Performance Timing Belt - Toyota 1JZ-GTE | JZX90 / JZX100 / JZX110 (JDM) - Special Order (24999-AT003)

Protect your 1JZ-GTE's valvetrain with the HKS performance timing belt. Engineered for the high-RPM demands of modified 1JZ-GTE applications in JDM JZX90, JZX100, and JZX110 chassis, this premium timing belt provides greater strength and durability than the factory belt, making it an essential upgrade for any serious 1JZ build.

SPECIAL ORDER ITEM: This product is a special order item. Lead times may apply. Contact us before ordering if you require a specific delivery timeframe.

JDM VEHICLES ONLY: This timing belt is designed for JDM-specification 1JZ-GTE engines as fitted to JZX90, JZX100, and JZX110 chassis. Verify your engine specification before ordering.

Key Features:

• HKS performance timing belt
• High-strength construction
• High-RPM rated for modified applications
• Greater durability than OEM belt
• Designed for JDM 1JZ-GTE specification
• Direct replacement fitment
• HKS quality and engineering

Performance Benefits:

• Increased Strength: Handles higher RPM and boost levels than OEM belt
• Greater Durability: Extended service life under performance conditions
• Peace of Mind: Reliable valvetrain protection for modified engines
• Direct Fit: Replaces factory belt without modification
• HKS Quality: Trusted by professional tuners and race teams

Specifications:

• Brand: HKS
• Part Number: 24999-AT003
• Product: Performance Timing Belt
• Engine: Toyota 1JZ-GTE (JDM specification)
• Type: Timing belt (direct replacement)

Fitment Information:

• Toyota JZX90 - Mark II / Cresta / Chaser (1JZ-GTE, JDM)
• Toyota JZX100 - Mark II / Cresta / Chaser (1JZ-GTE, JDM)
• Toyota JZX110 - Mark II / Verossa (1JZ-GTE, JDM)
• Engine: 1JZ-GTE (JDM specification only)
• IMPORTANT: JDM vehicles only - verify your engine specification before ordering
• Installation: Professional installation strongly recommended

What's Included:

• HKS performance timing belt
• Note: Timing belt tensioner, idler pulleys, and water pump sold separately
• Recommendation: Replace all timing belt components simultaneously

Installation Notes:

• Professional installation strongly recommended - timing belt replacement is a critical engine service
• Replace timing belt tensioner and idler pulleys simultaneously
• Inspect water pump and replace if showing wear (accessible during timing belt service)
• Follow Toyota factory timing belt replacement procedure
• Verify timing marks carefully before and after installation
• Incorrect installation can cause catastrophic engine damage on interference engines
• Torque all fasteners to manufacturer specifications

Why Upgrade the Timing Belt on a Modified 1JZ-GTE?

The factory 1JZ-GTE timing belt is designed for stock power levels and RPM ranges. Modified 1JZ-GTE engines running higher boost, increased RPM limits, or aggressive camshaft profiles place greater stress on the timing belt than the factory unit was designed to handle. A timing belt failure on an interference engine like the 1JZ-GTE is catastrophic - the pistons will contact the valves, causing severe engine damage. The HKS performance timing belt is constructed to handle the increased demands of modified 1JZ-GTE applications, providing the strength and durability needed for reliable operation at elevated performance levels.

JDM 1JZ-GTE Specification:

The 1JZ-GTE was produced in different specifications for different markets. The JDM-specification 1JZ-GTE, as fitted to the JZX90, JZX100, and JZX110 chassis, has specific timing belt dimensions and specifications that differ from other market variants. The HKS 24999-AT003 is designed specifically for the JDM 1JZ-GTE specification. Always verify your engine's market specification before ordering to ensure correct fitment.

JZX Chassis Applications:

The JZX90, JZX100, and JZX110 are iconic JDM Toyota chassis that share the 1JZ-GTE engine family. The JZX90 (Mark II/Cresta/Chaser, 1992-1996) and JZX100 (Mark II/Cresta/Chaser, 1996-2001) are particularly popular platforms for performance builds due to their FR layout, 1JZ-GTE power, and strong aftermarket support. The JZX110 (Mark II/Verossa, 2000-2004) continues the lineage. All three chassis benefit from the HKS performance timing belt upgrade, especially when running modified 1JZ-GTE engines.

Timing Belt Service Interval:

Even with a performance timing belt, regular inspection and replacement at appropriate intervals is critical. For modified 1JZ-GTE engines, more frequent inspection is recommended compared to stock applications. Consult your tuner or engine builder for recommended service intervals based on your specific power level and usage. Never exceed the recommended service interval on a timing belt - the consequences of failure are severe.

Special Order Information:

This item is a special order product, meaning it is not stocked in our warehouse and must be ordered from HKS. Lead times vary depending on HKS inventory and shipping schedules. If you require this item by a specific date, please contact us before placing your order to confirm availability and estimated lead time. Special order items may have limited return eligibility - please review our return policy before ordering.

Why HKS?

HKS is one of Japan's most prestigious performance parts manufacturers, with decades of experience developing components for Toyota's legendary engine platforms. Their timing belts are trusted by professional tuners and race teams who demand reliability at the highest performance levels. HKS's deep knowledge of the 1JZ-GTE platform ensures their timing belt is engineered to the correct specifications for reliable performance in modified applications.

Perfect For:

• JDM JZX90/JZX100/JZX110 owners with modified 1JZ-GTE engines
• High-boost 1JZ-GTE builds requiring stronger timing belt
• Track and competition 1JZ builds needing reliable valvetrain protection
• Timing belt service on modified JZX chassis
• Anyone seeking HKS quality for their 1JZ-GTE build

Perfect For: JDM JZX90/JZX100/JZX110 owners with modified 1JZ-GTE engines seeking HKS performance timing belt for reliable valvetrain protection at elevated performance levels.

Pro Tip: Replace the timing belt tensioner, idler pulleys, and inspect the water pump at the same time - it's a significant labour job and doing it all at once saves time and money.

Special Order: Lead times apply - contact us for availability. JDM 1JZ-GTE only. Professional installation required. Replace all timing components simultaneously.

Protect your 1JZ-GTE with HKS performance timing belt - high-strength, high-RPM rated, JDM JZX90/100/110 specific, trusted HKS quality.