The right ATV radiator depends on your vehicle’s make, model, year, and original equipment part number—not just a 1200 x 450 measurement. The five options below are replacement radiators for select Polaris and Yamaha machines; the supplied details do not confirm that any measures 1200 x 450. JAVIK is best for broad Polaris fitment listings, the 2021–2026 radiator is aimed at newer Polaris models, and NICHE offers separate choices for Polaris and Yamaha. Confirm your exact application before ordering.
| Product | Best suited for | Key fitment reference |
|---|---|---|
| JAVIK Radiator | Owners of listed older and newer Polaris models | Polaris OEM numbers including 1240520 and 1241477 |
| Polaris 2021–2026 Radiator | Select newer Sportsman, Ranger, and Pro XD models | 1241476 and 5410584 |
| NICHE Yamaha Kodiak Radiator | Owners of 2018–2021 Kodiak 450 ATVs | BB5-E2461-00-00 |
| EZAPEX ATV Radiator | Owners of listed Polaris Sportsman variants | 1240152, 1241477, 1240520, and 1240305 |
| NICHE Polaris Radiator | Owners of several listed Polaris models | 1241477, 1240520, 1240305, and 1240152 |
JAVIK Radiator For Select Polaris ATVs
The JAVIK radiator is an OEM-replica replacement listed for a wide range of Polaris Sportsman and related ATV applications. Its fitment list includes select Sportsman 400, 450, 500, and 570 models, along with certain ATP 500 and Hawkeye 325 versions. The listed OEM references are 1240520, 1240305, 1240152, and 1241477.
Best for: Polaris owners whose exact model and year appear in JAVIK’s detailed application list. It was selected for the breadth of that list, which includes some model-specific editions and year ranges.
The product description says the radiator is made with materials intended to provide abrasion and corrosion resistance and describes installation as convenient. Those statements are product claims; confirm that the included design matches the radiator being replaced.
Limitation: Fitment is not universal across every Sportsman with the same engine size. For example, the listing specifies particular 2004 Sportsman 400 and 500 versions and excludes at least one 2015 Sportsman 570 ACE application.
Radiator For Newer Polaris Models
This aluminum replacement radiator lists OEM numbers 1241476 and 5410584. Its stated applications include Polaris Sportsman 450 HO models from 2021–2022, Sportsman 570 models from 2021–2022, Ranger 570 models from 2022–2026, and Pro XD Mid-Size models from 2022–2026.
Best for: Buyers with a newer Polaris machine in one of the listed model groups who need a radiator matching the specified OEM reference. It was selected because its application details cover newer Ranger and Pro XD Mid-Size vehicles as well as select Sportsman models.
The package contents are listed as one high-performance aluminum radiator and two lower mount bushings. These included parts may be useful when replacing the unit, but the listing does not establish that every other mounting or cooling-system component is included.
Limitation: The fitment notes exclude Full-Size Ranger 570 models, Sportsman 570 6×6, X2, and Touring editions. Check the exact trim and OEM number, not only the model family.
NICHE Radiator For Yamaha Kodiak 450
This NICHE radiator is listed for the 2018–2021 Yamaha Kodiak 450 and references OEM part number BB5-E2461-00-00. The supplied specifications identify a one-row core, 26 mm tubes, and a core measuring 208 mm high, 300 mm wide, and 26 mm deep. A radiator cap is included according to the product name.
Best for: Owners of a listed Yamaha Kodiak 450 who are matching the OEM reference or checking core dimensions. It was selected as the Yamaha-specific option among products otherwise focused on Polaris applications.
These dimensions describe the core, not a stated overall radiator size. Compare them with the original unit and available space, and verify the OEM number before purchase.
Limitation: The listing only identifies the 2018–2021 Kodiak 450. It does not provide fitment for other Yamaha models or years.
EZAPEX Radiator For Polaris Sportsman Models
The EZAPEX replacement radiator lists OEM numbers 1240152, 1241477, 1240520, and 1240305. Stated applications include Sportsman 400, 450, 500, and 570 models, plus selected Sportsman X2, SP, and Touring versions, the Hawkeye 325, and ATP 500. Its stated years vary by model.
Best for: Polaris owners whose vehicle appears in the product’s year-by-year application list and whose original radiator uses one of the listed part numbers. It was selected for its coverage of multiple Sportsman variants and its clearly stated replacement references.
The description identifies high-grade aluminum and claims corrosion resistance, structural strength, and cooling efficiency. Treat these as listing claims rather than comparative test results.
Limitation: The listed years are not the same for every model, and the application list is narrower than a general “Sportsman” label might suggest. Verify both edition and year before ordering.
NICHE Radiator For Polaris Sportsman ATVs
This one-row NICHE radiator references Polaris OEM numbers 1241477, 1240520, 1240305, and 1240152. Its listed fitment includes select Sportsman 400, 450, 500, and 570 models, along with certain X2, SP, Touring, ATP 500, and Hawkeye 325 versions.
The stated core dimensions are 318 mm high, 300 mm wide, and 26 mm deep, with 26 mm tubes. Best for: Buyers with a listed Polaris application who want both OEM references and core measurements for comparison. It was selected as a direct Polaris-focused alternative to the JAVIK and EZAPEX options.
Limitation: The listing does not establish compatibility with every Polaris vehicle in those model families. It also does not state a 1200 x 450 overall measurement, so do not assume that dimension from the keyword alone.
Buying Guide: How To Choose An ATV Radiator
Does 1200 x 450 Describe The Radiator You Need?
Start by identifying what the measurement refers to. The product details here do not confirm a 1200 x 450 radiator. The NICHE listings provide core dimensions in millimeters, but those are much smaller measurements and are not presented as an overall 1200 x 450 size. If you are searching for a radiator by dimensions, measure your existing unit and clarify the unit of measurement before comparing products.
Check overall height and width, core depth, tube layout, mounting points, hose connections, and cap arrangement against the original radiator. A close-looking core measurement alone does not prove that a replacement will fit.
Which OEM Part Number Should You Match?
Use the original radiator’s part number, vehicle manual, or a reliable parts lookup to identify the correct replacement reference. The first, fourth, and fifth products list several overlapping Polaris numbers, while the newer-model option lists 1241476 and 5410584. The Yamaha radiator references BB5-E2461-00-00. Do not assume that similar part numbers are interchangeable.
How Important Are Model Year And Trim?
They are essential. ATV manufacturers may use different radiators within one model family, and listings can exclude specific editions. Compare the exact model, year, trim or edition, and drivetrain configuration against the seller’s fitment details. The newer Polaris listing, for example, excludes several Sportsman 570 variants and Full-Size Ranger 570 models.
How Should You Compare These Options?
- For a listed Yamaha Kodiak 450: Check the NICHE Yamaha unit against OEM number BB5-E2461-00-00 and its stated core dimensions.
- For a newer Polaris Ranger or Pro XD Mid-Size: Review the 2021–2026 radiator’s exact year and model exclusions.
- For select older or mid-year Polaris ATVs: Compare the JAVIK, EZAPEX, and NICHE Polaris fitment lists and part numbers.
- When mounting hardware matters: The newer Polaris listing specifically names two lower mount bushings. Check each product’s package contents rather than assuming other parts are supplied.
What Should You Verify Before Ordering?
Confirm the part number and vehicle application first. Then compare the old radiator’s physical dimensions, mounting points, hose connections, and included hardware with the product description. If the listing’s fitment or measurements do not clearly match your machine, seek confirmation from the seller or a parts professional before ordering. This is especially important when “1200 x 450” is the only measurement available.
Frequently Asked Questions
Are These Radiators Confirmed To Measure 1200 X 450?
No. The supplied product information does not state that any of these radiators has an overall 1200 x 450 measurement. Only the NICHE listings provide core dimensions, in millimeters.
Which Product Is For A Yamaha Kodiak 450?
The NICHE Yamaha radiator is listed for 2018–2021 Kodiak 450 models and references OEM number BB5-E2461-00-00. Verify the year and part number against your ATV.
Can I Choose A Radiator By Engine Size Alone?
No. Model year, trim or edition, OEM number, and physical fit can also affect compatibility. Use the complete application details rather than engine size alone.
What Is The Difference Between The Polaris Part Number Groups?
The JAVIK, EZAPEX, and NICHE Polaris products list numbers 1241477, 1240520, 1240305, and 1240152. The newer Polaris product lists 1241476 and 5410584. Confirm the number for your specific vehicle rather than treating the groups as interchangeable.
Are Mounting Bushings Included With Every Option?
No. The newer Polaris radiator listing specifically includes two lower mount bushings. The supplied descriptions for the other products do not confirm that those bushings are included.