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Novak Heavy Duty Radiator

for

1987-2001 XJ / MJ Jeeps

The Novak XJ / MJ Cherokee & Comanche radiators are the final word in cooling for these Jeeps and will shed heat faster than any XJ radiator we've ever encountered.

(Note: when ordering, permit 10-15 days for fulfillment, as these radiators are completed on demand. Thank you.) 

 

Product & Features

Block_K-XJ11H



Contents

Aluminum radiator with inline cap and fittings, hardware assembled and ready to install.

Fan assemblies ordered with the radiator come pre-assembled for a “drop-in” package saving substantial time on your part.

For earlier Jeeps (1984-1996) that currently feature the remote fill pressure bottle, this new radiator will convert you to a significantly improved system that places the filler neck in the upper radiator hose. Your engine bay will be less cluttered, simplified and there is less risk of engine damage due to due to air pockets inherent to the complexity and design flaws of the earlier systems. The elimination of this headache will welcomed along with increased reliability of the Jeep's cooling system.

Radiator

Utilizing the stock rubber isolated pin mounts on the bottom and high temp rubber isolators on the top, this radiator is near immune from heavy offroad jarring. The fan shroud is welded to the radiator to also act as structural member, further increasing its strength.

The cross-flow design radiator is manufactured from aluminum which has proven to be a much lighter, stronger and more efficient radiator cooling material. Tanks are CNC laser cut, bent and fabricated with billet aluminum fittings. The core features a single row of 1.5” wide tubes utilizing maximum fin density with louvered fins for optimal cooling capacity. These assemblies are TIG welded with the finest craftsmanship and pressure tested to exceed even high-pressure systems. Our radiators are designed to facilitate the maximum amount of cooling possible in a narrow Jeep grille.

Why single row? Through extensive in-house testing of past designs, and other leading competitors' radiators, we found the widest possible single row of maximum row density to be the most efficient. With multi row radiators, airflow becomes turbulent between rows, decreasing airflow and in turn decreasing efficiency. Our 1.5" row width is of the thickest single row radiators available. Paired with our very tight 0.37" row spacing and 15 folds per inch louvers, we are confident this is of the best conversion radiators on the market.

Applications & Compatibility

Integrated Auto Transmission Coolers?

Because modern engines run a bit hotter than earlier engines and automatic transmissions prefer to be kept at cooler temperatures, we at Novak have decided to offer radiators without an integrated automatic transmission cooler option. These coolers are more effective run as separate units. This is a method that is confirmed by trends in the OEM automotive industry.

These assemblies are designed to fit the 1987-2001 XJ / MJ models with engine conversions appropriate to the radiator selected. 1984-1986 XJ's feature a grill support assembly that is not will not work with this radiator (nor V8 engine conversions, for that matter) and will require that the installer fit the later style grille/radiator support from a salvage Cherokee for this radiator and the conversion to succeed. 

Related Products

**Fan assemblies ordered with the radiator come pre-assembled for a “drop-in” package saving substantial time on your part.

Block_FX3400-X

Block_FC-FRH195


Block_OT6082

Installation Requirements

Typical mechanics hand tools along with the appropriate hoses, clamps and coolant required with a normal radiator swap. After installing this upgrade radiator, we recommend that the installer should verify fan-to-radiator clearance and engine mount integrity before operating the Jeep.

Also See

Radiator Warranty Policy

 Our radiators come with a 1-year warranty for defects in materials or workmanship. Please note that evidence of electrolytic corrosion will void this warranty. If a warranty claim is made within the first year of purchase, 100% of the cost will be covered, minus the cost of shipping. If a warranty claim is made within the second year, 75% of the cost will be covered, minus the cost of shipping. If a warranty claim is made within the third year, 50% of the cost will be covered, minus the cost of shipping.