Engine Radiator Assembly 16400-17251 16400-17252 16400-17200 For Toyota Coaster HZB40/HZB50 1HZ 4.2L Diesel 1997-1999 — OEM Aluminum Core Manual/Automatic Transmission
| OEM Part Number: | 16400-17251 / 16400-17252 / 16400-17200 | Part Name: | RADIATOR ASSY / Engine Radiator |
| Core Size: | 550 × 578 Mm | Core Thickness: | 32 / 36 / 48 Mm |
| Core Material: | Aluminum | Tank Material: | Plastic (PA) |
| Radiator Type: | Brazed Cooling Fins | Transmission: | Manual Transmission (MTM) / Automatic Transmission (ATM) |
| Oil Cooler: | Diameter 32 × 390 Mm | Tank Size: | 69/69 × 597 Mm |
| Box Size: | 630 × 200 × 690 Mm | Certification: | ISO 9001 / TS 16949 |
| Vehicle Compatibility: | Toyota Coaster HZB40, HZB50, HZD50, BB50R, BB42 | Engine Compatibility: | 1HZ (4.2L Diesel), 14B, 15BFT, 1BZFPE |
| Production Years: | 1997–1999 (Primary); 1993–2016 (Compatible Range) | Condition: | Brand New — 100% Quality Inspected |
| Warranty: | 12 Months | ||
| High Light: | Toyota Coaster radiator assembly OEM,1HZ 4.2L diesel engine radiator,Aluminum core radiator for HZB40 |
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This Engine Radiator with OEM numbers 16400-17251 (also listed as 16400-17252, 16400-17200) is a verified OEM-grade direct replacement for Toyota Coaster HZB40 and HZB50 buses equipped with the 1HZ 4.2L diesel engine.
As a critical component of the engine cooling system, this radiator is responsible for dissipating heat from the engine coolant, maintaining optimal operating temperatures, and preventing overheating in demanding commercial passenger transport applications.
- OEM Specification - Verified by Toyota OEM part numbers 16400-17251, 16400-17252, and 16400-17200
- Precision 550×578×32/36/48mm Core - Verified by KINGA KJ-12383A and KJ-12539 specifications
- Proven Durability - Constructed with plastic/aluminum materials and brazed cooling fins
- Direct Bolt-On Fitment - 99% installation success rate confirmed across thousands of repair orders
- Broad Compatibility - Fits Coaster HZB40, HZB50, HZD50 with 1HZ engines from 1997-1999
- Cross-Reference Verified - Compatible with Jayrad JR2851J and KINGA KJ-12383A alternatives
If your radiator is failing, you may experience one or more of the following symptoms:
- Engine Overheating - Temperature gauge consistently rising above normal operating range
- Coolant Leakage - Visible coolant puddles under the vehicle or damp spots on the radiator core
- Steam from Engine Bay - Steam or vapour rising from the radiator area
- Coolant Loss - Unexplained drop in coolant level with no visible external leaks
- Reduced Heater Performance - Cabin heater blowing cold air
| Brand | Model | Chassis / Series | Engine | Years / Notes |
|---|---|---|---|---|
| Toyota | Coaster | HZB40, HZB40R | 1HZ 4.2L Diesel | 1997-1999, MTM/ATM |
| Toyota | Coaster | HZB50, HZB50R | 1HZ 4.2L Diesel | 1993-2016 |
| Toyota | Coaster | HZD50 | 1HZ 4.2L Diesel | Compatible |
| Toyota | Coaster | BB50R, BB42 | 14B, 15BFT, 1BZFPE | 1999-07 » 2004-08 |
| Part Name | OEM Part Number |
|---|---|
| Radiator Drain Cock Plug | 16417-15210 |
| Radiator Drain Cock Packing | 16418-15520 |
| Radiator Side Plate (RH) | 16453-17231 |
| Radiator Side Plate (LH) | 16454-17231 |
- This radiator is designed for Toyota Coaster models with 1HZ, 14B, 15BFT, and 1BZFPE diesel engines
- The 16400-17251 and 16400-17252 part numbers are used for both MTM and ATM applications
- Compatible with Right-Hand Drive (RHD) and Left-Hand Drive (LHD) configurations
- Please verify your vehicle's chassis code, production year, and transmission type before ordering
| Part Number | 16400-17251, 16400-17252, 16400-17200 |
| Product Name | Radiator |
| Car Model | Toyota Coaster HZB40/HZB50 |
| Engine Model | Toyota 1HZ |
| Condition | 100% Brand New |
| Origin | China Mainland |
| Main Market | Middle East, Asia, Africa, South America, North America & Europe |
| Material | High-strength aluminum alloy & precision bearings |
| Cooling Type | Engine coolant circulation |
| Installation | Direct OEM replacement |
| Quality Standard | OEM equivalent / ISO quality control |
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