Toyota Diesel OEM Timing Belt Idler 1KZ 1KZT 1KZTE 13505-67040 / 13505-67042

Product Overview

Genuine OEM timing belt tensioner pulley compatible with 1993-2005 Toyota Land Cruiser Prado, Hilux Surf, 4Runner, Hiace, and Hilux models with 1KZ-T and 1KZ-TE turbo diesel engines. This critical timing component maintains proper belt tension and ensures reliable operation of the timing system. This precision-manufactured pulley features sealed bearings and exact OEM specifications for maximum service life in Toyota's legendary 3.0L turbo diesel platform.

OEM Part Number(s):

• 13505-67040 (primary)
• 13505-67050 (interchangeable)
• 13505-67041 (superseded)
• 13505-67042 (superseded)

 

Key Features & Benefits

• OEM Precision Manufacturing: Manufactured Toyota
• Sealed Bearing Design: High-quality sealed bearings prevent contamination and ensure smooth operation throughout service life
• Critical Timing Component: Works in conjunction with the hydraulic tensioner to maintain proper timing belt tension
• Simple Installation: Direct OEM replacement requires no modifications - significantly easier than 2L/3L/5L timing systems
• Proven Reliability: Essential component for the 1KZ-TE timing system, known for simplicity and dependability

Technical Specifications

Part Type: Timing Belt Tensioner Pulley (Idler Pulley)
Engine Compatibility: 1KZ-T, 1KZ-TE 3.0L turbo diesel (also compatible with 1KD-FTV, 2KD-FTV)
Bearing Type: Sealed precision bearing 
Material: Steel pulley with precision-sealed bearing assembly
Configuration: Works with a hydraulic automatic tensioner system
Timing Belt Specification: 102 teeth x 25mm round tooth profile belt
Service Interval: Replace every 100,000 km (60,000 miles) or 5 years during timing belt service

Fitment

Year Range	Toyota Model	Engine Code
1993-2002	Land Cruiser Prado (70, 90, 95 Series)	1KZ-T, 1KZ-TE 3.0L turbo diesel
1993-2000	Hilux Surf / 4Runner (KZN130, KZN185)	1KZ-T, 1KZ-TE 3.0L turbo diesel
1993-2005	Hiace (KZH series)	1KZ-TE 3.0L turbo diesel
1993-2004	Hilux (KZN series)	1KZ-TE 3.0L turbo diesel (select markets)
1995-2002	Granvia / Grand Hiace / Regius	1KZ-TE 3.0L turbo diesel
2000-2009	Land Cruiser Prado (120 Series)	1KZ-TE 3.0L turbo diesel (early models)

Important Compatibility Notes:

• Also compatible with later 1KD-FTV and 2KD-FTV diesel engines (verify timing system configuration)
• This pulley is part of the hydraulic tensioner timing system - not compatible with manual tensioner systems
• Verify engine code before ordering - chassis codes alone may not confirm engine type
• All 1KZ-TE engines use a 102-tooth timing belt regardless of model year or application

 

Installation & Maintenance

Installation Difficulty: Intermediate
Tools Required: Basic socket set, torque wrench, timing mark alignment tools, pulley holding tool
Professional Installation: Recommended for timing belt service, but significantly easier than other Toyota diesel engines

Installation Notes:

• ALWAYS replace the tensioner pulley during timing belt service - bearing failure causes catastrophic engine damage
• Install with timing belt removed - easier access than 2L/3L/5L diesel engines
• Inspect pulley bearing for smooth rotation before installation - replace if rough or noisy
• Works in conjunction with hydraulic tensioner (13540-67020) - both components are critical for proper operation
• Torque all fasteners to factory specifications - typically 21-27 ft-lbs for timing system components

 

Service Recommendations:

• Replace the tensioner pulley every timing belt change (100,000 km / 60,000 miles)
• Inspect for bearing noise or roughness during regular maintenance
• Replace immediately if bearing shows signs of wear, noise, or rough rotation
• Service the water pump, thermostat, and all seals during timing belt replacement

 

Frequently Asked Questions

Q: Is this the same part as 13505-67050?
A: Yes, 13505-67040 and 13505-67050 are interchangeable part numbers for the same tensioner pulley. Both are correct and fully compatible with 1KZ-TE engines.

Q: How difficult is timing belt service on the 1KZ-TE compared to other Toyota diesels?
A: The 1KZ-TE is renowned as one of the easiest Toyota diesel timing belt services, typically requiring only 1-2 hours versus 6-10 hours for 2L/3L/5L engines. The hydraulic tensioner system is simpler than manual spring-loaded systems.

Q: Can I reuse this pulley if it looks good?
A: No - ALWAYS replace the tensioner pulley during timing belt service. Bearing failure in this component causes immediate timing belt failure and catastrophic engine damage. The modest cost of replacement is insurance against thousands in engine repairs.

Q: Will this fit 1KD-FTV or 2KD-FTV engines?
A: Yes, this tensioner pulley is also compatible with 1KD-FTV and 2KD-FTV diesel engines that use the same timing system configuration. Verify your engine uses a 102-tooth timing belt for confirmation.

Related Toyota Parts You May Need

• Timing Belt (13568-69085): 102-tooth x 25mm round profile belt - must be replaced with tensioner pulley
• Hydraulic Tensioner (13540-67020): Automatic tensioner assembly that works with this pulley - critical replacement item
• Water Pump (16100-69355/69357): Replace during timing belt service to avoid duplicating labor costs
• Thermostat 82°C (90916-03118): Lower temperature thermostat helps prevent overheating in 1KZ-TE engines
• Camshaft Seal (90311-32020): Preventive replacement during timing belt service
• Injection Pump Seal (90311-58006): Consider replacement during timing service for leak prevention

 

Common Symptoms of Tensioner Pulley Failure

• Squealing or grinding noise from timing belt area during engine operation
• Rough or notchy rotation when pulley is spun by hand during inspection
• Visible bearing grease leakage or contamination around pulley
• Excessive timing belt wear or unusual wear patterns indicating misalignment
• Bearing play or wobble when checked for excessive movement
• Timing belt has reached or exceeded 100,000 km service interval

Why Replace Your Timing Belt Tensioner Pulley

Critical Timing System Component: The timing belt tensioner pulley plays an essential role in maintaining proper timing belt tension and alignment in the 1KZ-TE diesel engine. Unlike the 2L/3L/5L engines that use a manual spring-loaded tensioner, the 1KZ-TE employs a hydraulic automatic tensioner system that relies on this idler pulley to guide the belt and maintain proper routing.

Legendary 1KZ-TE Reliability: The 1KZ-TE 3.0L turbo diesel engine has earned an exceptional reputation for durability and performance in demanding applications worldwide. From Australian outback expeditions to African safaris to South American mountain passes, this engine has proven itself as one of Toyota's most dependable turbo diesel platforms. However, this legendary reliability depends entirely on proper timing system maintenance.

Interference Engine Design: Like all diesel engines, the 1KZ-TE is an interference design where the valves and pistons occupy the same space at different times in the combustion cycle. If the timing belt fails due to tensioner pulley bearing failure, the valves will collide with the pistons at engine speed, causing bent valves, damaged pistons, and potentially a cracked cylinder head. 

Bearing Failure Risk: The sealed bearing in the tensioner pulley operates in a harsh environment - heat, vibration, and constant rotational loads. Over time, bearing grease breaks down and seals degrade. When bearing failure begins, it progresses rapidly from minor noise to catastrophic failure in a matter of days or weeks. The modest cost of preventive replacement during scheduled timing belt service is the best insurance against devastating engine damage.

Simpler Than Other Toyota Diesels: One significant advantage of the 1KZ-TE timing system is its relative simplicity compared to the 2L/3L/5L diesel engines. The timing belt replacement on a 1KZ-TE typically requires only 1-2 hours of labor versus 6-10 hours for L-series diesels. This makes routine timing maintenance more affordable and accessible, removing the common excuse for delaying this critical service.

Don't gamble with timing belt failure. Replace your tensioner pulley during every timing belt service using genuine OEM components. The 1KZ-TE's reputation for legendary reliability depends on proper maintenance with quality parts. This simple preventive measure ensures your engine continues delivering the dependable performance that made the 1KZ-TE famous worldwide.

Order your genuine OEM timing belt tensioner pulley today and maintain the reliability that defines Toyota's legendary 3.0L turbo diesel platform.