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Chevy P30 454 (7.4L) Fan Belts And Hoses

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DaveVA78Chieftain:
Fan Belts





Power Steering Pump Mounting on P30 454



A - Insert 1/2" breaker bar (or 1/2" rachet) in square slot to apply pressure to tighten PS belt.  The adjustment bolt is hidden behind the PS Pulley and fan blade in this picture.
B - AC Compressor adjustment bolt
C. AIR pump adjustment bolt
D. Alternator adjustment bolt

Note: Many P30 chassis' use a Hydroboost braking system.  The Hydroboost unit uses the PS pump as a pressure source therfore, loss of the PS belt will affect both steering and brakes.

Crank, Water Pump, Alternator Belt

  Year    Description    Part Number    Belt Tension  1979 - 1985          GM: 9433752
  NAPA:  15495 or 257495
  Autozone: 15495 (Duralast) 
   Used: 75 +/- 5lbs
  New: 125 +/- 5lbs1990  Serpentine
  52.75 inches
  (1340 mm)  GM: 10085787
  NAPA: 6K525 or 25060525HD   
  Autozone: 525K6 (Duralast)
  Used: 75 +/- 5lbs
  New: 125 +/- 5lbs


Crank, Water Pump, Alternator, Air Pump Belt

  Year    Description      Part Number    Belt Tension  1985 1/2 - 1989  Poly V, 6 Rib
  55.98 inches
  (1422.0 mm)  GM: 14087540
  NAPA: 6K560 or 25060560 or
  25060560HD
  Autozone: 560K6 or 5060560   
  or 560K6  Used: 75 +/- 5lbs
  New: 125 +/- 5lbs

Crank to Power Steering Pump Belt

  Year    Description      Part Number    Belt Tension  1979 - 1985          Without A/C    GM: 9433745
  NAPA: 15460 or 257460
  Autozone: 15460 (Duralast)     
   Used: 75 +/- 5lbs
  New: 125 +/- 5lbs
1985 1/2 - 1990  Without A/C
  .47 inch x
  45.5 inches  GM: 10034695
  NAPA: 15455 or 257455
  Autozone: 15455
   Used: 75 +/- 5lbs
  New: 125 +/- 5lbs1985 1/2 - 1990  With A/C,
  Hi Ride
  3/8 inch x
  41 inches
  GM Code: XL  GM: 9433735
  NAPA: 15410 or 257410
  Autozone: 15410 (Duralast)  Used: 75 +/- 5lbs
  New: 125 +/- 5lbs

Crank, Power Steering Pump, A/C Compressor, Water Pump Belt

  Year    Description      Part Number    Belt Tension  1985 1/2 - 1990  Hi Ride
  3/8 inch x
  60.5 inches
  GM Code: GA   
   GM: 14033869
  NAPA: 15603 or 257603
  Autozone: 15603 (Duralast)          Used: 90 +/- 5lbs
  New: 135 +/- 5lbs

Power Steering Pump to 2nd AIR Pump Belt (NA5 Code chassis only)

  Year    Description      Part Number    Belt Tension  1985 1/2 - 1990      With and
  Without A/C
  All Federal,
  Hi Ride
  .47 inch x
  45.00 inches
  GM Code: CNA  GM: 10034695
  NAPA: 15455 or 257455
  Autozone: 15455 (Duralast)         Used: 75 +/- 5lbs
  New: 125 +/- 5lbs
Hoses

Upper Radiator Hose

  Year    Description      Part Number  1973 - 1981            Vertical Radiator
  350 Engine  GM: 6259952
  NAPA: 7575
  Autozone: E70935 (Dayco)
 1973 - 1981  Vertical Radiator
  454 Engine  GM: 6259953
  NAPA: 7537
  Autozone: B70846 (Dayco)
 1982  Horizontal Radiator
  454 Engine
  (Varies by Model &   
  option)  GM: 14049401
  NAPA: 8153
  Autozone: B70846 (Dayco)

  GM: 15599363
  NAPA: 8232
  Autozone: E71429 (Dayco)
 1983  Horizontal Radiator
  454 Engine  GM: 15595586
  NAPA: 7537
  Autozone: B70846 (Dayco)
 1984 (H4D)  Horizontal Radiator
  454 Engine  GM: 14049401
  NAPA: 8153
  Autozone: B70846 (Dayco)
   1985 - 1989 (H5D)  Horizontal Radiator
  454 Engine  GM: 15599363
  NAPA: 8232
  Autozone: E71429 (Dayco)
 1990 - 1994 (H5D)  Horizontal Radiator
  454 Engine  GM: 15638164
  NAPA: 8153
  Autozone: B70846 (Dayco)
 

Lower Radiator Hose

  Year    Description      Part Number  1973 - 1981             Vertical Radiator
  350 & 454 Engine        GM: 343414
  NAPA: 7581
  Autozone: E70735 (Dayco)
 1982  Horizontal Radiator
  350 Engine  GM: 343414
  NAPA: 7581
  Autozone: E70735 (Dayco)
 1982 - 1984  Horizontal Radiator
  454 Engine  GM: 14049500
  NAPA: 8154
  Autozone: E71430 (Dayco)
 1985 - 1994  Horizontal Radiator
  454 Engine
  (Varies by Model & option)  GM: 14049500
  NAPA: 8154
  Autozone: E71430 (Dayco)

  GM: 15595587
  NAPA: 7537
  Autozone: B70846 (Dayco)

  GM: 14042372
  NAPA: 7537
  Autozone: B70846 (Dayco)
 

Oz:
And it would best to be a separate topic - > Chevy 454 (7.4L) Fan belts & hoses AIR removed   :)

bnlfan:
I am having a hard time finding the ps to hydroboost belt.  It is 41 inches but very thin v belt.  Any one know the part number?  It is the belt on the rear of the pully.

Rickf1985:
The power steering IS the hydroboost? Are you talking about the belt that goes around the AC? The one on the back of the pulley if I remember correctly goes to the A.I.R. Pump on top center of the engine.
 This information is the very first post in this thread on four posts above yours!
1985 1/2 - 1990  With A/C,
  Hi Ride
  3/8 inch x
  41 inches
  GM Code: XL  GM: 9433735
  NAPA: 15410 or 257410
  Autozone: 15410 (Duralast)  Used: 75 +/- 5lbs
  New: 125 +/- 5lbs

bnlfan:
Perhaps it is not a stand alone hydroboost pump.  But there is a belt not found in the list, .  I got all the belts and then some, listed on this thread.  This belt is barely as big around as a pencil.  It is a v belt with no teeth.  Laying under the motor,it is on the back half of the power steering pulley. It is at the very bottom of the motor.  If you are on your back facing up, head by the transmission, the dual pulley is on the left and it goes to a pulley next to it.


None of the belts listed that the autoparts people cross matched are anywhere close.   The belt measures right at 41 inches and about 6 mm wide.

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