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Toyota MK4 Supra 2JZ-GE HPS Silicone Radiator Hose Replacement Kit DIY Installation Guide


Vehicle Application: 1993-1998 Toyota Supra Non-Turbo
Product Type: HPS Performance Silicone Radiator Hose Kit
HPS Part Numbers:

Estimated Install Time: 1 hour

Tools needed:
- 10mm socket with ratchet
- 8mm wrench
- Flat-Head Screw Driver
- Needle Nose Pliers
- Drain Pan
- Funnel

Always remember to take precautions and use safety glasses and gloves when working on your car.



First, jack up the car and secure it with jack stands, or use roll up ramps. Please be extra cautious when lifting your vehicle. Place a drain pan underneath the radiator on the driver side of the vehicle. There is a circle cut out of the under panel where the coolant will drain from.



Make sure the engine and coolant have cooled down to avoid burns or other injuries. Locate the drain cock on the lower driver side of the radiator. You can access this from the top of the vehicle. Unscrew the drain cock and allow all of the coolant to drain into the drain pan. You can remove the radiator cap to help the coolant drain quicker. Once all of the coolant has drained, re-tighten the drain cock.



Remove the 5 bolts at the front and 3 bolts on the passenger side with a 10mm socket on the under tray. The tray does not need to be fully removed, only tucked out of the way with enough space to access the lower radiator hose.



The lower radiator hose is located on the bottom passenger side of the radiator. To remove it, use pliers to pinch the spring clamp and pull it back about 2-3 inches up the radiator hose. Grab the hose and rotate it back and forth several times to loosen it from the radiator and the hose should come free.



Back at the top of the car, locate the other end of the lower hose located behind the alternator. Using the same procedure described earlier, remove the hose from the neck.



Install the new HPS Reinforced Silicone Radiator Hose. Be sure to slip the stainless steel hose clamps onto the hose before attaching the new hose to the water necks. Make sure the hoses are fully seated before tightening the clamps down. Use an 8mm socket to tighten the hose clamp down, which can be torqued to 35 in.lb.



The upper radiator hose is easy to access. Move the spring clamps 2-3 inches up the hose and wiggle the hose free.



Replace the hose with the new HPS Reinforced Silicone Radiator Hose with the provided clamps, and install using the same instructions as earlier.


Once everything is secured, begin refilling the coolant, and check for any leaks. We used a coolant bleeding funnel to help remove any air from the system. We used Toyota red coolant for the Supra. Once the coolant has been refilled, start the engine and turn on the heater to max heat with the fan on low (to open the thermostat). Once the car has reached it's operating temperature, turn it off, and let it cool down completely. Top off the coolant if needed. Once everything looks good, replace the radiator cap, and drive the car around. Once it cools down again, re-check the coolant level, and add any if necessary.

For a complete list of HPS radiator hose kit, please visit our website at www.hpsperformanceproducts.com

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