Availability
Jeep Wrangler Radiators
The Jeep Wrangler is a great “get away from it all” vehicle, thanks to the trail-crawling capabilities built in at the factory, but it does have limits. Tackling extra-steep...
The Jeep Wrangler is a great “get away from it all” vehicle, thanks to the trail-crawling capabilities built in at the factory, but it does have limits. Tackling extra-steep terrain can make your engine run hot, and at low speeds, that heat is harder to get rid of. Add extra weight from camping or overlanding gear, plus bigger, heavier wheels and tires, and you have a recipe for overheating.
Whether your classic YJ or TJ radiator has seen better days, or you’re ready to upgrade your JK or JL for off-road adventure, you can find the stock-replacement or performance radiator you need right here at Summit Racing Equipment.
The Jeep Wrangler is a great “get away from it all” vehicle, thanks to the trail-crawling capabilities built in at the factory, but it does have limits. Tackling extra-steep terrain can make your engine run hot, and at low speeds, that heat is harder to get rid of. Add extra weight from camping or overlanding gear, plus bigger, heavier wheels and tires, and you have a recipe for overheating.
Whether your classic YJ or TJ radiator has seen better days, or you’re ready to upgrade your JK or JL for off-road adventure, you can find the stock-replacement or performance radiator you need right here at Summit Racing Equipment.
What’s A Radiator?
The radiator is where your engine eliminates heat. Your water pump circulates water (or coolant) through your engine, where it absorbs heat, and then sends it to the radiator, usually located in front of the engine. The coolant passes through a system of thin-wall tubes in the radiator core. Heat dissipates from the coolant through the tube walls, is then conducted to fins in contact with the tubes, and finally the heat is transferred to the air passing through the fins.
Radiator designs and materials have evolved over the years. Here’s a brief summary:
Copper-brass was once the standard tube and fin material, but nowadays most radiators are aluminum. The lighter material allows manufacturers to include more rows of tubes and more fins for increased cooling.
Older radiators had the tubes oriented in a “downflow” (up-and-down) pattern, but shorter grilles made “crossflow” (side-to-side) designs more popular.
Water normally boils at 212°F, and if water is boiling in your cooling system, it’s no longer able to absorb heat from the engine. Pressurizing the cooling system raises the boiling point (about 3°F for every 1 psi), allowing the coolant to transfer heat more efficiently. Your humble radiator cap maintains the proper pressure.
Radiators have side tanks to help manage the flow of coolant. Stock tanks are usually plastic, while performance and off-road radiators have aluminum ones.
Common Cooling Issues
If your Jeep Wrangler starts leaking coolant, the radiator is just one possible culprit. Be sure to check all your hoses, fittings, the water pump, radiator cap, and thermostat housing. The fix may be less expensive than a replacement radiator!
If your coolant is topped off but your Wrangler is overheating, it might be a problem with airflow or coolant circulation. Check to make sure your fans are operating properly, especially if your Jeep is overheating at idle. Circulation can be affected by air trapped in the system, a faulty coolant pump, or by a restriction caused by external damage or internal build-up of corrosion or sediment.
Stock Replacement
Summit Racing Equipment makes it easy to replace your worn out or damaged Wrangler radiator. Just use our handy Make/Model search tools to find a brand-new radiator that fits just like the original equipment. Jeeps with manual transmissions may have different radiators than automatics, so be sure to double-check your application.
Cooler than Cool
There are several good reasons to upgrade your Jeep Wrangler’s radiator:
Engine upgrades (like superchargers or turbochargers), or a bigger engine.
Increased engine load from powering electronics, or using your vehicle for more demanding tasks, like off-roading or towing.
Increased vehicle weight from wheels and tires, winches, or camping/overlanding gear.
Low-speed operation, such as rock crawling or vehicle recovery.
Performance radiators usually improve cooling by increasing their effective surface area through extra rows of tubes, or using space the factory left open.
Need help picking the best performance radiator for your Wrangler YJ, TJ, JK, or JL? Be sure to check out our articles on the subject at On All Cylinders, and talk to other Jeep owners with similar projects. There are plenty of your fellow enthusiasts right here at Summit Racing Equipment, too—give us a call or chat online!
Showing In Stock Items. Show All 140 Items.
Radiator, Performance Fit, 2-Row, Aluminum, Polished, Jeep, Wrangler, YJ, Each
Part Number: SUM-384047
Estimated Ship Date: Today
Estimated Ship Date: Today
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Radiator, Performance Fit, 4-Row, Aluminum, Polished, Jeep, TJ, Each
Part Number: SUM-384054
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, Performance, Aluminum, Polished, Crossflow, XD Extruded Core, 2 Row, Jeep. Each
Part Number: RAD-MOJ995XD
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, Aluminum, Crossflow, with 19 psi Cap and Magnetic Drain Plug, V6, 3.8L, 3.6L, JK, Wrangler, Jeep, Each
Part Number: MIO-MMRADWRA07V2
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, BladeRunner Street Series, Crossflow, Aluminum, Jeep JK, Each
Part Number: AFE-46-52001
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, Aluminum, Downflow, Jeep, Each
Part Number: MIO-MMRAD-WRA-87
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, Performance Fit, Aluminum, Natural, Hemi Conversion, Jeep, JK, V8, Each
Part Number: SUM-380467
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, Exact-Fit, Jeep, JK Series, OEM 6 Cylinder, Fits Manual and Automatic, Aluminum, Crossflow, 1-Row, Each
Part Number: GRI-5-00152
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, Racing, Aluminum, Polished, Jeep, JK Wrangler, Each
Part Number: CSF-7036
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, Aluminum, Downflow, Exact Fit, Jeep, Each
Part Number: GRI-5-70032
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, Performance Fit, Aluminum, Natural, Jeep, Engine Swap, Chevy V8, Downflow, Each
Part Number: SUM-380464
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiators, Downflow, Aluminum/Plastic, Natural, Transmission Cooler, Jeep, 2.4L, 2.5L, 4.0L, Each
Part Number: DNP-221-9234
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, OE Replacement, Aluminum, Natural, Jeep, JK Wrangler, Each
Part Number: CSF-3466
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, Performance, Aluminum, Polished, Crossflow, XD Extruded Core, 2 Row, Jeep. Each
Part Number: RAD-MOJ996XD
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, Performance Fit, Aluminum, Crossflow, 2-Row, Jeep, Each
Part Number: GRI-8-00169
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, Performance, Crossflow, 3 Rows, Aluminum, Natural, Jeep, Chevy Small Block LS, Each
Part Number: MIO-MRADWRAV887X
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, Performance, Crossflow, Aluminum, Polished, 2-row, Jeep, Engine Swap, Each
Part Number: RAD-MOJ995-5
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, 87-04 Jeep Wrangler (Hd) - All Metal 2 Row
Part Number: CSF-2576
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, OE Replacement, Aluminum/Plastic, Natural, Jeep, JK Wrangler, Each
Part Number: CSF-3592
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiators, Crossflow, Aluminum/Plastic, Natural, Jeep, L4, V6, Each
Part Number: OSC-2957
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, Performance, Aluminum, Polished, Crossflow, 2 Row, Jeep, JK Wrangler, Each
Part Number: RAD-MOJ995
Estimated Ship Date: Nov 23, 2026 if ordered today
Estimated Ship Date: Nov 23, 2026 if ordered today
Radiator, Aluminum/Plastic, Replacement, Natural, Crossflow, 1-Row, Manual Tranny, Jeep JK, Each
Part Number: MIO-R2957-MT
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator and Fan, Exact-Fit, Aluminum, Crossflow, 1-row, Single Fan, Jeep, Kit
Part Number: GRI-CU-70032
Not Yet Reviewed
Estimated Ship Date: Dec 17, 2026 if ordered today
Estimated Ship Date: Dec 17, 2026 if ordered today
Radiators, Downflow, Aluminum/Plastic, Natural, Transmission Cooler, Jeep, 2.5L, 4.0L, Each
Part Number: CSF-3244
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, Exact-Fit, Aluminum, Natural, Jeep, with Chevy, Small Block, Each
Part Number: BCI-62007
Not Yet Reviewed
Estimated Ship Date: Dec 18, 2026 if ordered today
Estimated Ship Date: Dec 18, 2026 if ordered today
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