My 99 infiniti may be an early version? Can't find power steering hose for it.

Power Steering Pump - 4.0L Special Tool(s) Installer Set, Teflon® Seal
211-D027 (D90P-3517-A) or equivalent Material Item Specification MERCON® V Automatic Transmission Fluid
XT-5-QM (or XT-5-QMC) (US); CXT-5-LM12 (Canada) MERCON® V
Item Part Number Description 1 388898 Teflon® seal 2 - Pressure line-to-pump fitting (part of 3A719) 3 W700839 Power steering pump bolts (3 required) 4 3A674 Power steering pump 5 W503924 Pressure line bracket-to-engine bolt 6 3691 Power steering pump supply hose 7 W503924 Power steering pump supply hose bracket bolt
Removal
NOTICE: While repairing the power steering system, care should be taken to prevent the entry of foreign material or failure of the power steering components may result.

1. Using a suitable suction device, remove the power steering fluid from the reservoir.

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Section 100-02.

1. Remove the power steering pump pulley. For additional information, refer to Power Steering Pump Pulley - 4.0Lin this section.

1. Remove the pressure line bracket-to-engine bolt.

1. Remove the power steering pump supply hose bracket bolt.

1. Release the power steering pump supply hose clamp and disconnect the hose.

1. Disconnect the pressure line-to-pump fitting.
   • Remove and discard the Teflon® seal.

1. Remove the 3 bolts and the power steering pump.

Installation

1. NOTE:A new Teflon® seal must be installed.Using the Teflon® Seal Installer Set, install a new Teflon® seal to the pressure line fitting.

1. Position the power steering pump and install the 3 bolts.
   • Tighten to 25 Nm (18 lb-ft).

1. Connect the pressure line-to-pump fitting.
   • Tighten to 75 Nm (55 lb-ft).

1. Connect the power steering pump supply hose.

1. Install the power steering pump supply hose bracket bolt.
   • Tighten to 11 Nm (97 lb-in).

1. Install the pressure line bracket-to-engine bolt.
   • Tighten to 11 Nm (97 lb-in).

1. Install the power steering pump pulley. For additional information, refer to Power Steering Pump Pulley - 4.0Lin this section.

1. Fill the power steering system. For additional information, refer to Section 211-00.

low cost will be from a wrecker that handles your make of car
hydraulic hose shops can manufacture one if you provide the sample
that will be about 1/2 cost of a genuine hose
genuine as a last resort

I just finished replacing mine.

It is much easier if you do these steps:

1. Remove the serpentine belt.
2. Remove the nuts holding the main fuse box over the battery.
3. Remove the reinforcing bar over the battery.
4. Remove the battery.
5. Remove the windsheild washer tank.
6. Now you have access to remove the pump pulley. Without removing the stuff, it may be possible, but it will be extremely difficult.
7. Remove the pump pulley.
8. Loosen the high pressure hose fitting.
9. Remove the return line clamp.
10. Remove the power steering pump mounting bolts.
11. Remove the high pressure hose fitting.
12. Remove the power steering pump while sliding off the low pressure hose.
13. Remove the clips holding the reservoir on the pump.
14. Remove the reservoir.
15. Install new o-ring on the reservoir.
16. Install reservoir on new pump.
17. Install clips to hold reservoir on pump.
18. Install new o-ring on high pressure fitting.
19. Place new pump in position while sliding on low pressure hose.
20. Loosely attache high pressure fitting.
21. Tighten pump to mounts.
22. Tighten high pressure fitting.
23. Install clamp on low pressure hose.
24. Install power steering pulley.
25. Install washer reservoir.
26. Install battery.
27. Install reinforcing cross member.
28. Install fuse panel.
29. Install serpentine belt.
30. Bleed the power steering system.

The fitting threads may be damaged would be my guess.

RETURN TURN LINE GOES TO THE LEFT OF RACK PINION AND HIGH PRESSURE HOSE GOES TO THE RIGHT OF RACK PINION.LOOKING AT POWER STEERING PUMP HIGH PRESSURE HOSE THICK HOSE SCREWS INTO POWER STEERING PUMP.WHILE LOW PRESSURE HOSE HAS A HOSE WITH A CLAMP THE LOW PRESSURE HOSE HOOKS TO TOP OF POWER STEERING PUMP.LOW PRESSURE DONT SCREW INTO POWER STEERING PUMP IT IS HELD IN PLACE BY A HOSE SMALL CLAMP.

3.0L (VIN 3) Engine


Power steering pump mounting detail (3.0L engine)

1. Disconnect and isolate the negative battery cable.
   
2. Remove the accessory drive belt. The belt does not have to be removed from the engine.
   
3. Raise and safely support the vehicle.
   
4. Disconnect the wiring harness connector to the oxygen sensor which is accessible through the oxygen sensor wiring harness grommet in the vehicle floor pan.
   
5. Remove the catalytic converter from the exhaust manifold and remove all exhaust system hangers and isolators from the exhaust system brackets. Move exhaust system out of the way as far rearward and to the left as possible to provide access to the power steering pump.
   
6. Place a drain pan under the power steering pump. Remove the power steering fluid return line hose on the front suspension cradle. Allow the fluid to drain from the pump and hose.
   
7. Remove the accessory drive belt splash shield.
   
8. Disconnect the power steering remote reservoir supply hose from the fitting on the power steering pump. Allow fluid to drain from the hose.
   
9. Remove power steering fluid pressure line from the power steering pump and drain any excess power steering fluid.
   
10. Remove the power steering fluid return hose from the power steering pump.
    
11. Remove the rear support bracket mounted behind the power steering pump to the engine block.
    
12. Remove the 2 mounting bolts that secure the pump to the alternator/power steering pump and belt tensioner mounting bracket.
    
13. Remove the power steering pump and pulley assembly out from the vehicle. Transfer all required parts from the pump to the new replacement pump before installation.
    

To install:

1. Position the front of the power steering pump up onto the mounting bracket. Torque the 2 power steering pump-to-mounting bracket bolts to 40 ft. lbs. (54 Nm).
   
2. Install the rear power steering pump-to-engine block support bracket. Torque the 2 support bracket mounting bolts to 40ft. lbs. (54 Nm). Install the nut to the mounting stud behind the pump and torque to 40 ft. lbs. (54 Nm).
   
3. Install the high pressure fluid line to the pump output fitting. Torque the high pressure line-to-power steering pump fitting to 275 inch lbs. (31 Nm). Be sure to inspect the pressure line O-ring for any damage before connecting the pressure line to the steering pump.
   
4. Install the low pressure power steering fluid hose to the power steering pump low pressure fitting. Be sure the hose clamps are properly reinstalled and hoses are clear of the accessory drive belts.
   
5. Install the accessory drive belt.
   
6. Install the hose on the power steering fluid return line on the front suspension cradle. Be sure the hose clamps and heat shield tubes are correctly reinstalled.
   
7. Reconnect the exhaust pipe to the exhaust manifold. Install the hangers and isolators onto the exhaust system brackets. torque the nuts and bolts to 250 inch lbs. (28 Nm).
   
8. Reconnect the wiring harness connectors to the oxygen sensor. Install the wiring harness grommet into the vehicle floor pan.
   
9. Install the accessory drive belt splash shield.
   
10. Remove the drain pan and lower the vehicle.
    
11. Refill the power steering pump reservoir with the correct amount of clean power steering fluid.
    
12. Reconnect the negative battery cable. Bleed the power steering system.
    
13. Run the engine and check the system for leaks and proper steering operation.
    

3.3L (VIN R) & 3.8L (VIN L) Engines


Rear support bracket mounting detail (3.3 & 3.8L engines)


Power steering pump mounting detail (3.3 & 3.8L engines)

1. Remove and isolate the negative battery cable.
   
2. Raise and safely support the vehicle. Place a drain pan under the power steering pump.
   
3. Disconnect the wiring harness connector to the oxygen sensor which is accessible through the oxygen sensor wiring harness grommet in the vehicle floor pan.
   
4. Remove the catalytic converter from the exhaust manifold and remove all exhaust system hangers and isolators from the exhaust system brackets. Move exhaust system out of the way as far rearward and to the left as possible to provide access to the power steering pump.
   
5. Remove the power steering fluid return line hose on the front suspension cradle. Allow the fluid to drain from the pump and hose.
   
6. Remove the accessory drive belt splash shield.
   
7. Remove accessory drive belt.
   
8. Disconnect the power steering remote reservoir supply hose from the fitting on the power steering pump. Allow fluid to drain from the hose.
   
9. Remove power steering fluid pressure line from the power steering pump and drain any excess power steering fluid.
   
10. Remove the power steering fluid return hose from the power steering pump.
    
11. Remove the rear support bracket mounted behind the power steering pump to the engine block.
    
12. Remove the 3 mounting bolts that secure the pump to the alternator/power steering pump and belt tensioner mounting bracket.
    
13. Remove the power steering pump and pulley assembly from the vehicle. Transfer all required parts from the pump to the new replacement pump before installation.
    

To install:

1. Position the front of the power steering pump up onto the mounting bracket. Torque the 3 power steering pump-to-mounting bracket bolts to 40 ft. lbs. (54 Nm).
   
2. Install the rear power steering pump-to-engine block support bracket. Torque the support bracket mounting bolts to 40 ft. lbs. (54 Nm). Install the nut to the mounting stud behind the pump and torque to 40 ft. lbs. (54 Nm).
   
3. Install the high pressure fluid line to the pump output fitting. Torque the high pressure line-to-power steering pump fitting to 275 inch lbs. (31 Nm). Be sure to inspect the pressure line O-ring for any damage before connecting the pressure line to the steering pump.
   
4. Install the low pressure power steering fluid hose to the power steering pump low pressure fitting. Be sure the hose clamps are properly reinstalled and hoses are clear of the accessory drive belts.
   
5. Install the accessory drive belt.
   
6. Install the hose on the power steering fluid return line on the front suspension cradle. Be sure the hose clamps and heat shield tubes are correctly reinstalled.
   
7. Reconnect the exhaust pipe to the exhaust manifold. Install the hangers and isolators onto the exhaust system brackets. Torque the nuts and bolts to 250 inch lbs. (28 Nm).
   
8. Reconnect the wiring harness connectors to the oxygen sensor. Install the wiring harness grommet into the vehicle floor pan.
   
9. Install the accessory drive belt splash shield.
   
10. Remove the drain pan and lower the vehicle.
    
11. Refill the power steering pump reservoir with the correct amount of clean power steering fluid.
    
12. Reconnect the negative battery cable. Bleed the power steering system.
    
13. Run the engine and check the system for leaks and proper steering operation.
    

Hopfully this will be ALL you need Besides Pulley REMOVAL TOOL It can be Rented @ AutoZONE

REMOVAL

1. Remove drive belt.
2. Raise vehicle on hoist. WARNING: TURN AIR SUSPENSION SWITCH (LOCATED IN LUGGAGE COMPARTMENT) OFF TO PREVENT VEHICLE DAMAGE OR PERSONAL INJURY.
3. Remove power steering pressure hose bracket.
4. Disconnect electrical connector at power steering control valve actuator.
   1. Install Steering Pump Pulley Remover T69L-10300-B on the pulley hub. CAUTION: Do not apply in-and-out pressure on the power steering pump shaft. Pressure will damage the internal thrust areas.
   2. Hold the small hex-head and rotate the tool nut counterclockwise to remove the power steering pump pulley.
   3. Disconnect power steering pressure hose at power steering pump and drain fluid into a container.
   4. Disconnect power steering return hose at power steering pump and drain fluid into a container.
   5. Remove four retaining bolts and power steering pump and power steering pump pulley assembly.
   6. Remove power steering pressure switch from pump.
   INSTALLATION
   
   1. Position the power steering pump on the mounting bosses of engine block and install the bolts at the side of the power steering pump. Tighten to 20-30 Nm (15-22 ft. lbs.).
   2. Connect the power steering reservoir pump hose to the power steering pump and reposition the hose clamp to power steering pump inlet fitting.
   3. Replace power steering pressure hose O-ring.
   4. Install the power steering pressure hose to the power steering pump fitting. Tighten the tube nut with a tube nut wrench rather than with an open-end wrench. Tighten to 34-46 Nm (26-33 ft. lbs.). NOTE: Swivel or end play of the power steering pressure hose end is normal and does not indicate a loose fitting.
   5. Place the power steering pump pulley on the power steering pump shaft and install Power Steering Pump Pulley Replacer T91P-3A733-A. The small diameter threads on the tool should be engaged in the power steering pump shaft. CAUTION: Do not apply in and out pressure on the shaft. Pressure will damage the internal rotating group.
   6. Hold the small hex-head and rotate the tool nut clockwise to install the power steering pump pulley on the shaft. CAUTION: Do not apply in and out pressure on the shaft. Pressure will damage the internal rotating group. NOTE: The power steering pump pulley face must be flush within 0.25 mm (0.010 inch) of the end of the pump shaft.
   7. Remove the Power Steering Pump Pulley Replacer T91P-3A733-A.
   8. Remove the shipping tube nut from power steering pump housing prior to installation.
   9. Connect electrical connector to power steering control valve actuator.
   1. Install power steering pressure hose bracket.
   1. Lower the vehicle.
   2. If equipped, turn the air suspension ON.
   3. Install drive belt on the power steering pump pulley.
   4. Fill the power steering pump reservoir with Power Steering Fluid Motorcraft MERCON(r) ATF.

Power Steering Line/Hose: Service and Repair
Pressure Hose
Power Steering Pressure Pipe/Hose Replacement (3.8L)
Removal Procedure
1. Place a drain pan under the vehicle.
2. Remove the accessory drive belt.
3. Raise and support the vehicle. Refer to Vehicle Lifting.
4. Remove the tire and wheel assembly.
5. The power steering pressure hose is the lower hose at the power steering gear.
Remove the power steering pressure hose from the power steering gear.
6. Remove the power steering pressure hose from the power steering pump.
7. Remove the power steering pressure hose from the clamps on the power steering gear.
8. Remove the power steering pressure hose from the vehicle.
Installation Procedure
1. Install the power steering pressure hose to the vehicle.
2. Install the power steering pressure hose to the clamps on the power steering gear.
Notice: Refer to Fastener Notice in Service Precautions.
3. Install the power steering pressure hose to the power steering pump.
^ Tighten the fitting to 27 Nm (20 ft. lbs.).
4. Install the power steering pressure hose to the power steering gear.
^ Tighten the pressure hose fitting to 27 Nm (20 ft. lbs.).
5. Install the tire and wheel assembly.
6. Remove the drain pan from under the vehicle.
7. Lower the vehicle.
8. Install the accessory drive belt.
9. Fill the power steering system with power steering fluid.
10. Bleed the power steering system.
11. Inspect the power steering system for leaks.

When you remove the oil steering hose, just do a match fit. Match the oil hose with the new one and pre oil the O rings before you connect the fittings. Don't for get to clean all the power steering fluid before you go for a test drive, power steering fluid is flammable. Good luck and hope this helps. Keep me posted friend. 

i pERSONALY WOULD REPLACE IT MYSELF EVEN WITHOUT MY 30yrs Of Experience in this Field. I have Enclosed Instructions for you to use. PLEASE dont Forget to RATE me As MOST folks DONT remember to that is how WE Get our Ratings such as GURU THANK YOU and Good Luck On The Job, Dont PAY a dime If YOU CAN > D I Y

REMOVAL PROCEDURE

1. Remove the power steering pressure hose (2) from the power steering pump (1).
2. Raise the vehicle on a hoist. Refer to Vehicle Lifting.
3. Remove the front exhaust pipe, automatic transmission only. Refer to Intermediate Pipe Replacement in Exhaust System
4. Remove the power steering pressure hose (1) from the power steering gear (3).
5. Remove the power steering hose retainer (2).
6. Remove the power steering pressure hose (1) from the vehicle
   1. Install the power steering pressure hose (1) to the vehicle
   2. Install the power steering hose retainers (2). NOTICE: Refer to Fastener Notice in Service Precautions.
   3. Install the power steering pressure hose (1) to the power steering gear (3). Tighten the fitting to 27 Nm (20 ft. lbs.).
   4. Install the front exhaust pipe, if removed. Refer to Intermediate Pipe Replacement in Exhaust System.
   5. Lower the vehicle.
      1. Install the power steering pressure hose (2) to the power steering pump (1). Tighten the fitting to 27 Nm (20 ft. lbs.).
      2. Bleed the power steering system. Refer to Bleeding Power Steering System in Service and Repair of Steering.