Description
The NAPA NTTK859 Timing Kit provides a complete OE-quality solution for Toyota’s tough 1HZ, 1HDT, and 1PZ diesel engines, used across Land Cruiser 70, 75, 77, 80 Series, and Coaster buses.
Designed to handle the high-torque demands of Toyota’s heavy-duty inline diesel engines, this kit includes a timing belt, tensioner, and front seal kit for accurate timing and long-term reliability.
Whether it’s a rugged off-road Land Cruiser or a commercial Coaster bus, the NTTK859 ensures your 4.2L diesel continues to deliver legendary reliability.
Key Features
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Complete Kit – Includes belt, tensioner, and seal kit.
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OEM-Spec Components – Matches Toyota factory design and fit.
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Heavy-Duty Construction – Built for 1HZ / 1HDT diesel engine loads.
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Precise Camshaft Timing – 94-tooth belt ensures accurate timing alignment.
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Durability Tested – Designed for long service intervals in demanding environments.
Specifications
| Specification | Detail |
|---|---|
| Part Number | NTTK859 |
| Brand | NAPA |
| Type | Timing Kit |
| Unit of Measure | Kit |
| Description | Timing Kit (Includes Belt, Tensioner, and Seal Kit) |
| Warranty | Service Interval |
| Note | Kit Contains Belt, Tensioner, and Seal Kit |
| Product Group 1 | Engine Parts |
| Product Group 2 | Timing Components |
| Condition | New |
OEM Cross References
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Toyota OEM: 13568-19045, 13568-19036, 13568-19046
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Gates Equivalent: TCK859
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Dayco Equivalent: KTBA859
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Aisin Equivalent: TKH-025
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Blueprint Equivalent: ADT37334
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Nippon / Mitsuboshi Equivalent: MD-T859
Engine Compatibility
| Engine Code | Description | Type | Notes |
|---|---|---|---|
| 1HZ | 4.2L SOHC 12V Diesel | Naturally Aspirated | Land Cruiser HZJ70/75/77/80/79, Coaster HZB |
| 1HDT | 4.2L SOHC 12V Turbo Diesel | Direct Injection | Land Cruiser HDJ80 / HDJ81 |
| 1PZ | 3.5L SOHC 10V Diesel | Naturally Aspirated | Land Cruiser PZJ70 / PZJ73 |
Fits the Following Vehicles
Toyota Land Cruiser Series
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HZJ70 / HZJ71 / HZJ73 / HZJ75 / HZJ77 / HZJ79 – 4.2L 1HZ Diesel, 96–99kW, [01/90–08/10]
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HZJ80 / HZJ81 – 4.2L 1HZ Diesel, [01/90–12/97]
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HDJ80 / HDJ81 – 4.2L 1HDT Turbo Diesel, [01/90–12/97]
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PZJ70 / PZJ73 – 3.5L 1PZ Diesel, [01/90–08/91]
Toyota Coaster Bus
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HZB46V / HZB56V – 4.2L 1HZ Diesel Bus, [01/93–08/08]
Technical Notes
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Driven Units: Camshaft
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Timing Belt Tooth Count: 94
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Belt Width: 30 mm
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Valvetrain: SOHC, 10/12 valves
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Includes: Timing Belt, Tensioner, and Seal Kit
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Recommended Replacement Interval: 150,000 km or 5 years
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