Genuine Toyota OEM Idle Gear Shaft 13581-17012 High-Grade Metal for Land Cruiser & COASTER

The Idle Gear Shaft (SHAFT, IDLE GEAR, NO.1) with Genuine Toyota OEM number 13581-17012 (also listed as 1358117012) is a verified direct-fit replacement for Toyota Land Cruiser and Toyota COASTER models equipped with the 1HZ and 1HD-FTE diesel engines.

As a critical component of the engine's timing gear train, this shaft serves as the pivot point for the idler gear, maintaining proper gear alignment and facilitating efficient power transfer from the engine. The idler gear plays an essential role in the timing system, transmitting rotation from one shaft to another and ensuring precise synchronization between the crankshaft and camshaft for optimal engine performance.

• Real Shop Test Data: Precision-engineered idler gear shaft built to Toyota's exacting OEM standards
• Proven Durability: Constructed from high-grade metal with precision engineering
• Verified OEM Compatibility: Replaces 13581-17011 and 13581-17010
• Cross-Vehicle Compatibility: Fits Land Cruiser 70/80/100 Series and COASTER models

If your idle gear shaft is failing, you may experience one or more of the following symptoms:

• Noisy Engine Operation: Unusual rattling, whining, or grinding noises from the timing gear area
• Timing Issues: Engine runs rough, misfires, or exhibits poor performance
• Difficulty Starting: Extended cranking or no-start conditions
• Metal Shavings in Oil: Visible metallic particles in the engine oil during servicing
• Complete Timing Failure: In extreme cases, can lead to catastrophic engine damage

Pre-Installation Checklist:

• This shaft is typically replaced during timing gear service or engine rebuilds
• Inspect the idler gear and related timing components for wear
• Ensure the engine is properly timed after installation
• Use new seals and gaskets during reassembly

Installation Guidelines (Reference Toyota workshop manual):

1. Ensure the engine is properly supported and the timing cover is removed
2. Remove the old idle gear shaft and inspect the mounting bore
3. Clean the mounting surface and bore thoroughly
4. Install the new shaft with correct orientation
5. Torque the mounting bolts to manufacturer's specified torque settings
6. Install the idler gear and verify smooth rotation
7. Set the engine timing correctly before reassembly
8. Reassemble the timing cover and remaining components
9. Start the engine and check for unusual noises

Each idle gear shaft is securely packed in Genuine Toyota OEM packaging to prevent shipping damage. Suitable for wholesale distributors, auto parts retailers, 4×4 specialty shops, commercial vehicle repair shops, and fleet owners.