The right “400” radiator depends on the vehicle, model year, and configuration: radiators for an ATV, UTV, motorcycle, and Lexus LS400 are not interchangeable. The options below cover several distinct applications, including the Kawasaki Prairie 400, Hisun HS400, Ninja 400, and Lexus LS400. Check your vehicle’s exact year and fitment before ordering. The SFriding radiators are aimed at Hisun owners, while the FSMOTO option is specific to the Prairie 400.
| Product | Best For | Key Fitment |
|---|---|---|
| FSMOTO Aluminum Radiator | Kawasaki ATV owners | Prairie 400 KVF400, 1997–2002 |
| WORLDMOTOP Aluminum Radiator | Kawasaki motorcycle owners | Ninja 400 and listed related models |
| SFriding HS400 UTV-2 Radiator | Hisun UTV-2 owners | Hisun 400 HS400 UTV-2 |
| SFriding HS400 UTV-4 Radiator | Hisun UTV-4 owners | Hisun 400 HS400 UTV-4 |
| RAYTEN CU2058 Radiator | Later Lexus LS400 owners | 1995–2000 Lexus LS400 4.0L V8 |
FSMOTO Prairie 400 Aluminum Radiator
Best for: Owners of a Kawasaki Prairie 400 KVF400 from 1997 through 2002 who need a replacement radiator for that specific ATV.
The FSMOTO unit is described as a full-aluminum radiator made from T-6061 aluminum. The package includes a radiator cap, and the listing describes the design as a high-performance racing style. It also claims a 35–45% improvement in temperature cooling. Treat that percentage as a manufacturer-listed claim rather than a guaranteed result for every machine or riding condition.
This option is selected because its stated fitment directly names the Prairie 400 KVF400 and covers the listed 1997–2002 model years. Choose it if those details match your ATV and you want the included cap. Avoid it if your ATV is a different model or year unless fitment is independently confirmed.
Limitation: The product details do not provide radiator dimensions or installation instructions. Confirm the vehicle application and mounting arrangement before purchase.
WORLDMOTOP Ninja 400 Aluminum Radiator
Best for: Riders whose motorcycle matches one of the specific Kawasaki models and years named in the listing.
This black aluminum radiator is listed for the Kawasaki Ninja 400 and Ninja 400 ABS from 2018–2026, as well as the Ninja 500, Ninja 500 ABS, Z500, and Z500 SE for the years stated in the product name. The listing describes it as a direct replacement made from CNC aluminum and says it installs as a bolt-on replacement without modifications. One radiator cooler is listed in the package.
It is included because the “400” search can refer to a Ninja 400 motorcycle, and the product provides model-specific fitment rather than broad universal fitment. Choose it if your motorcycle’s exact model and year appear in the listing. Its claimed direct-replacement installation may suit buyers looking for a replacement-style part.
Limitation: The fitment spans several model families and years, so confirm the exact motorcycle before ordering. The listing says no instructions are required, but it does not provide installation guidance in the supplied details.
SFriding Hisun HS400 UTV-2 Radiator
Best for: Owners of a Hisun 400 HS400 UTV-2 who need the radiator listed for that configuration.
SFriding describes this as a heavy-duty water-cooling radiator made with aluminum for both the core and tank. The listing gives OEM replacement number 19200-112-0000 and says the radiator fits all Hisun 400 HS400 UTV-2 models. It also claims cooling capacity about 30–40% higher than a standard radiator and says it exceeds OEM specifications. These are product-listed claims, not independently verified performance measurements.
This radiator is selected for its clearly stated UTV-2 application and replacement number. Choose it if your vehicle is a Hisun HS400 UTV-2 and the listed number or fitment aligns with your existing part. The aluminum construction and claimed cooling-capacity increase may matter to buyers replacing a worn radiator.
Limitation: The listing distinguishes UTV-2 from UTV-4, so do not assume this is the correct version for a four-seat configuration. Verify the vehicle subtype and replacement number.
SFriding Hisun HS400 UTV-4 Radiator
Best for: Hisun 400 HS400 UTV-4 owners seeking a radiator listed for the UTV-4 configuration.
This SFriding radiator is specified for all models of the Hisun 400 HS400 UTV-4 and lists OEM number 19200-112-0000. Its construction uses aluminum for the core and tank, and the product is described as a heavy-duty water-cooling radiator. The listing claims a cooling-capacity increase of about 30–40% compared with a standard radiator.
It is a separate option from the UTV-2 radiator above because the stated vehicle configuration differs. Choose this one if your vehicle is specifically an HS400 UTV-4 and the listed replacement number matches the part you need. Buyers comparing the two SFriding options should prioritize the UTV-2 or UTV-4 designation over the shared 400 engine description.
Limitation: The supplied details do not include dimensions, installation steps, or further vehicle identifiers. Confirm the UTV-4 fitment and replacement number before purchase.
RAYTEN CU2058 Lexus LS400 Radiator
Best for: Owners of a 1995–2000 Lexus LS400 with the listed 4.0-liter V8 application.
The RAYTEN CU2058 is listed for the 1995–2000 Lexus LS400 4.0 V8. The product details give dimensions of 24 inches high, 31 inches long, and 5 inches wide, with a listed weight of 11 pounds. Those measurements can help with an initial comparison, but they do not replace checking the vehicle application and radiator connections.
This product is included because “400” also identifies the Lexus LS400, a passenger vehicle rather than an ATV or motorcycle. Choose it if you need a radiator for the stated later LS400 model years and the CU2058 application matches your vehicle. It is not the right choice for an earlier LS400 based on the supplied fitment information.
Limitation: The listing’s application summary is limited to 1995–2000 LS400 models. It does not establish compatibility with 1990–1994 models or other Lexus vehicles.
Buying Guide: How to Choose a 400 Radiator
What does “400” mean for your vehicle?
“400” may refer to an engine or vehicle model rather than the radiator’s physical size. In this product selection, it appears in the names of an ATV, UTV, motorcycle, and Lexus. Start with the manufacturer, model, year, and configuration of your vehicle. A radiator for a Prairie 400 ATV is not interchangeable with one for a Ninja 400 motorcycle or an LS400 sedan.
How can you confirm fitment?
Match all available identifiers before ordering. Compare the model name, model year, vehicle subtype, engine description, and OEM or replacement part number. For the Hisun options, distinguish UTV-2 from UTV-4 even though both list HS400 and the same OEM number. If the listing does not specify your exact vehicle, seek confirmation rather than relying on “400” alone.
Should you choose aluminum construction?
Several listed products describe aluminum construction, including the FSMOTO and SFriding radiators. Material alone does not establish that a radiator fits or performs better in a particular vehicle. Compare the specified application, construction details, package contents, and any available measurements. Treat performance percentages in product descriptions as manufacturer claims, not guaranteed results.
Which details should you compare beyond fitment?
- Dimensions: Check listed measurements against your vehicle’s space and the old radiator where possible. The RAYTEN listing provides dimensions; several other product descriptions do not.
- Included parts: FSMOTO states that a radiator cap is included. Other listings describe a radiator or cooler but do not specify the same contents.
- Installation information: WORLDMOTOP describes a direct bolt-on replacement with no modifications, but the supplied details do not include instructions. Plan to verify installation requirements for your vehicle.
- Replacement numbers: The SFriding products list OEM number 19200-112-0000. Compare it with the number on the original part or vehicle documentation.
When should you avoid a near-match?
A similar engine size or shared product-family name is not enough to confirm fitment. Avoid choosing a radiator solely because it includes “400” in its title. Be especially cautious when a listing separates model years, vehicle configurations, or generations. Confirm compatibility with the seller or a reliable parts catalog if your exact year or trim is not clearly listed.
What if the problem is not the radiator itself?
Cooling problems can have more than one cause. The RAYTEN product details mention issues such as coolant leaks, sludge, blocked or damaged fins, overheating, and a collapsed radiator hose. Inspect the cooling system and related components before replacing a radiator. A replacement part will not necessarily resolve a problem caused by another component.
Frequently Asked Questions
Are all radiators labeled “400” interchangeable?
No. The products in this guide cover different vehicle types and applications. Match the radiator to the exact make, model, year, and configuration.
Which radiator is listed for a Kawasaki Prairie 400?
The FSMOTO radiator is listed for the Kawasaki Prairie 400 KVF400 from 1997 through 2002. Confirm that your ATV’s year and model match before ordering.
What is the difference between the two SFriding HS400 radiators?
One is listed for the Hisun 400 HS400 UTV-2, and the other is listed for the HS400 UTV-4. Select the version that matches your vehicle configuration.
Does the RAYTEN CU2058 fit every Lexus LS400?
The supplied listing specifies 1995–2000 Lexus LS400 4.0 V8 models. It does not establish fitment for every LS400 model year.
Are cooling improvement percentages guaranteed?
No. The FSMOTO and SFriding listings provide claimed cooling improvements, but the supplied product details do not establish that those results are guaranteed under all conditions.
What should I check before buying a replacement radiator?
Verify the vehicle’s exact year and configuration, compare OEM or replacement part numbers, check dimensions when available, and confirm package contents and installation requirements.