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
Price:
Negotiable
MOQ:
5 pcs
Delivery Time:
5-8 Work Days
Brand:
YIMI
Product Description
Engine Radiator Assembly 16400-17251 16400-17252 16400-17200 For Toyota Coaster HZB40/HZB50 1HZ 4.2L Diesel 1997-1999
Product Overview
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.
Key Specifications
- 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
Failure Symptoms
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
⚠️ Important: A failing radiator can lead to severe engine damage including blown head gaskets, warped cylinder heads, or complete engine seizure. Prompt replacement is essential to maintain engine reliability and prevent costly repairs.
Vehicle & Engine Compatibility
| 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 |
Associated Components (Sold Separately)
| 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 |
⚠️ Important Compatibility Notes:
- 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
Features & Benefits
OEM Specification
Guarantees factory-fit quality and performance - verified by Toyota OEM part numbers
Precision Aluminum Core
550×578mm core delivers superior heat dissipation and structural integrity
Brazed Cooling Fins
Ensures maximum heat transfer efficiency and long-term durability
Integrated Oil Cooler
32×390mm oil cooler provides transmission fluid cooling for ATM applications
Hybrid Design
Lightweight plastic tanks with high-conductivity aluminum core for optimal performance
Direct Bolt-On Fitment
No modifications required - engineered as direct match for original radiator
Quality Certified
ISO 9001 / TS 16949 certified manufacturing under strict quality control
100% New
Guarantees zero wear, immediate cooling performance, and full service life
Product Specifications
| 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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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Yimi (Guangzhou) Automotive Parts Co, Ltd
Location
Unit 1313, Building 5, Changsheng DDP Fashion Center, No. 17 Dachi Road, Tancun, Shijing Subdistrict, Baiyun District, Guangzhou City.
Contact Person
James