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The Koyo radiator identified by manufacturer part number HH010647 is supplied in the exact configuration described as Koyo HH010647 Radiator for Toyota Aristo and Lexus GS300. Confirm the complete part number, application, dimensions, connection layout, and package contents before ordering.
Key Features
- Koyo Hyper Core Radiator for Toyota Aristo and Lexus GS300 This Koyo HH010647 radiator is a 48mm Hyper Core all-aluminum replacement radiator built for the 1997-2005 Toyota Aristo and 1998-2005 Lexus GS300.
- What does the 48mm Hyper Core designation mean It refers to the core thickness and high-density fin design that Koyo uses to maximize cooling efficiency in this radiator line.
- It replaces the aging factory plastic-tank radiator with a fully hand-welded aluminum design for improved durability and cooling efficiency.
- This radiator is a direct bolt-on fitment that requires no cutting, modification, or additional parts.
- What is the core material and construction The core and tanks are all-aluminum and hand-welded, replacing the factory plastic-tank design with a more durable all-metal construction.
- What finish does this radiator have It is finished in Koyorad's signature brushed aluminum finish.
Fitment
No unsupported year-make-model record has been assigned. Verify the exact Koyo part number, chassis, engine, transmission, hose size, mounting points, and all application notes before ordering.
Specifications
| Brand | Koyo |
|---|---|
| Manufacturer Part Number | HH010647 |
| Product Type | Radiators |
| Fitment Type | Fitment Verification Required |
What's Included
- One Koyo radiator in manufacturer packaging
- Hardware, adapters, cap, hoses, and fittings only when listed for the exact part number
About Koyo
Koyo develops high-performance radiators, heat exchangers, intercooler cores, oil coolers, expansion tanks, caps, and cooling-system accessories. Similar-looking parts can use different core dimensions, ports, hose sizes, pressure ratings, and mounting layouts, so exact part-number verification is essential.
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Frequently Asked Questions
How do I verify fitment for Koyo HH010647?
Match the complete part number to the chassis, engine, transmission, hose dimensions, mounting points, cap requirement, and every current Koyo application note.
Does this Koyo part include every installation component?
Only the components stated for the exact part number are included. Confirm whether caps, adapters, hoses, fans, shrouds, fittings, mounts, and transmission-cooler provisions must be reused or purchased separately.
What should I inspect before filling the cooling system?
Check all mounting points, hose and fitting engagement, fan and shroud clearance, cap compatibility, drain-plug sealing, and any transmission or oil-cooler connections.
Installation Instructions
- Verify the exact part number, application, dimensions, ports, hose sizes, and package contents before disassembly.
- Allow the engine to cool fully, relieve system pressure safely, and capture coolant according to local requirements.
- Follow the factory service procedure and current Koyo instructions, then test-fit the component before final assembly.
- Confirm fan, shroud, hose, condenser, transmission-cooler, and body clearance before filling the system.
- Refill with the specified coolant, bleed trapped air, inspect for leaks, and recheck coolant level after a complete heat cycle.
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