Description
Piper PA-31P Pressurized Navajo Parts Catalog – Document 753 769
This is the full Piper PA-31P Pressurized Navajo Illustrated Parts Catalog, published under Piper document number 753 769 and revised through June 1984. It covers the entire Pressurized Navajo line from the earliest 1970 airframes (31P-3) through the final 1977 models (31P-7730012). Every figure in this catalog is paired with a parts listing that names the part, gives the identifying Piper part number, states the quantity required, and pins each item to the specific aircraft serial numbers it fits. For anyone maintaining, restoring, or ordering parts for a PA-31P, this is the reference the parts counter works from.
File Details
- Manual type: Illustrated Parts Catalog (Aerofiche-origin, converted)
- Brand / Manufacturer: Piper Aircraft Corporation
- Model: PA-31P Pressurized Navajo
- Document number: 753 769
- Original issue date: December 18, 1972
- Latest revision in this set: June 1984
- Language: English
- Page count: ~550 pages
- File format: PDF
What This Piper PA-31P Parts Catalog Covers
The catalog is divided into fourteen major sections. Sections I through XIII contain every replacement part for the complete airplane, each with an accompanying illustration and parts listing. Section XIV is the Miscellaneous Group, which adds placards, exterior stencils, optional equipment kits, repair kits, and special tools.
Chapters Covered
- Wing Group – wing panels, leading edge assemblies, spars, stringers, ailerons, flaps, fuel cells
- Fuselage Group – forward, cabin, and aft sections, bulkheads, frames, stringers, floorboards, doors, windows, windshield
- Tail Surfaces Group – fin, rudder, stabilizer, elevator, trim tabs
- Landing Gear – main gear struts, wheels, brakes, nose gear, steering, dual brake system, selector mechanism
- Cabin Equipment – interior finishing, windows, headliner, carpet, crew and passenger seats, 7th and 8th seats, toilet seat, dividers, tables, baggage compartments
- Instruments – instrument panel, dual panel, true airspeed indicator, static air, gyro lines, dual instrument air
- Power Plant – engine installation, baffles, controls, cowl, cowl flaps, nacelle, oil cooler, propeller and synchronizer/synchrophaser
- Fuel System – control panel, left and right engine fuel systems, auxiliary lines, components, flow gauge, main and auxiliary fuel cells
- Controls – pedestal, aileron, rudder, elevator, flaps, control wheel, rudder pedals
- Hydraulic System – forward and aft systems, pumps, powerpak assemblies and components
- Environmental – heater, evaporator, pressurization, air distribution, oxygen, Freon lines, defroster, de-icing
- Electrical System – power, forward and aft electrical, instrument harness, strobes, overhead switch panel, landing light, wiper, propeller de-icer
- Electronics System – AltiMatic autopilots, RMI, glide slope, ELT, radar, radio telephone, antennas, radio junction boxes
- Miscellaneous – placards and stencils, optional equipment kits, repair kits, special tools
Why Technicians and Owners Use the PA-31P Pressurized Navajo Illustrated Parts Manual
Piper parts catalogs are built for accuracy, not narrative. Every component is traced to the exact figure and index number, and the serial-number column tells you immediately whether the part on your shelf matches the airplane in your hangar. The PA-31P changed incrementally across its 1970-1977 production run, and this catalog captures those changes, including the 1975 model code switch, the updated fuel vent configuration from 31P-7400225, and later revisions to the cabin interior, instrument panel, and autopilot installations.
The catalog also settles substitutions. Footnote codes flag when a part is superseded by a kit, when an older part should be replaced with a newer configuration, and when two different parts serve left-hand and right-hand positions. That saves expensive guesswork and prevents installing a component that fits one serial block but not another.
Inside the Exploded Diagrams and Parts Listings
Each section opens with a Figure that shows the assembly pictorially, numbered to match the parts listing directly below it. Wing structures, fuselage frames, landing gear struts, hydraulic powerpaks, heater assemblies, and propeller hubs are all exploded into their component pieces. Hydraulic lines, fuel lines, oxygen lines, Freon lines, and pneumatic de-icer plumbing are diagrammed with their fitting and hose details. Autopilot, radar, and radio installations each have their own figure set within the Electronics section.
Serial Number Coverage
- 1970 PA-31P Pressurized Navajo: 31P-3 through 31P-30
- 1971 PA-31P Pressurized Navajo: 31P-31 through 31P-66
- 1972 PA-31P Pressurized Navajo: 31P-67 through 31P-109
- 1973 PA-31P Pressurized Navajo: 31P-7300110 through 31P-7300172
- 1974 PA-31P Pressurized Navajo: 31P-7400173 through 31P-7400230
- 1975 PA-31P Pressurized Navajo: 31P-7530001 through 31P-7530028
- 1976 PA-31P Pressurized Navajo: 31P-7630001 through 31P-7630019
- 1977 PA-31P Pressurized Navajo: 31P-7730001 through 31P-7730012
Complete PDF Bookmark Tree
Complete Bookmarks
The complete bookmarks in the “Piper PA-31P Pressurized Navajo Illustrated Parts Catalog 753 769 – 1970-1977 PDF” are as follows:
+753-769 – PRESSURIZED NAVAJO PARTS CATALOG – PA-31Pp. 1
AEROFICHE EXPLANATION AND REVISION STATUSp. 2
INTRODUCTIONp. 3
TABLE OF CONTENTSp. 8
FIGURE 1. VIEW OF COMPLETE AIRPLANEp. 13
+SECTION I – WING SECTIONp. 14
FIGURE 2. WING INSTALLATIONp. 14
FIGURE 3. WING PANEL INBOARD PARTS INSTALLATIONp. 19
FIGURE 4. WING PANEL OUTBOARD PARTS INSTALLATIONp. 21
FIGURE 5. WING PANEL LEADING EDGE ASSEMBLYp. 25
FIGURE 6. LEADING EDGE SPAR ASSEMBLYp. 28
FIGURE 7. WING PANEL REAR SPAR ASSEMBLYp. 31
FIGURE 8. AILERON ASSEMBLYp. 37
FIGURE 9. FLAP ASSEMBLYp. 40
+SECTION II – FUSELAGEp. 43
FIGURE 10. FUSELAGE ASSEMBLYp. 43
FIGURE 11. UPPER FORWARD SECTION ASSEMBLYp. 45
FIGURE 12. UPPER CABIN SECTION ASSEMBLYp. 48
FIGURE 13. LOWER FORWARD SECTION ASSEMBLYp. 52
FIGURE 14. LOWER FORWARD FRAME ASSEMBLYp. 55
FIGURE 15. PRESSURE BULKHEAD ASSEMBLYp. 59
FIGURE 16. LOWER REAR SECTION ASSEMBLYp. 61
FIGURE 17. LOWER CENTER FRAME ASSEMBLYp. 65
FIGURE 18. LOWER REAR FRAME ASSEMBLYp. 68
FIGURE 19. AFT SECTIONp. 72
FIGURE 20. STRUCTURE INSTALLATION, STA. 375 TO STA. 215p. 77
FIGURE 21. STRUCTURE INSTALLATION, STA. 215 TO STA. 244p. 80
FIGURE 22. INNER SKIN INSTALLATIONp. 82
FIGURE 23. FLOORBOARD INSTALLATIONp. 84
FIGURE 24. WINDSHIELD INSTALLATIONp. 87
FIGURE 25. WINDOWS INSTALLATION (EXTERNAL)p. 89
FIGURE 26. EMERGENCY EXIT WINDOW INSTALLATION (S/N 31P-3 TO 31P-109 INCL)p. 91
FIGURE 26A. EMERGENCY EXIT WINDOW INSTALLATION (S/N 31P-7300110 AND UP)p. 93
FIGURE 26B. OVERHEAD WINDOW INSTALLATION (S/N 31P-7400178 TO 31P-7630019 INCL)p. 96
FIGURE 27. NOSE CONE INSTALLATIONp. 98
FIGURE 28. CABIN ENTRANCE DOOR INSTALLATIONp. 101
FIGURE 28A. CABIN ENTRANCE DOOR ASSEMBLYp. 105
FIGURE 29. CABIN DOOR LATCH INSTALLATIONp. 107
FIGURE 30. CABIN DOOR STEP INSTALLATIONp. 110
FIGURE 31. CABIN DOOR SNUBBER INSTALLATIONp. 113
FIGURE 32. CABIN DOOR INFLATION SYSTEM INSTALLATIONp. 115
FIGURE 33. FORWARD BAGGAGE DOOR INSTALLATIONp. 117
+SECTION III – TAIL SURFACESp. 120
FIGURE 34. TAIL SURFACE INSTALLATIONp. 120
FIGURE 35. FIN ASSEMBLYp. 124
FIGURE 36. RUDDER ASSEMBLYp. 126
FIGURE 37. STABILIZER ASSEMBLYp. 129
FIGURE 38. ELEVATOR ASSEMBLYp. 131
+SECTION IV – LANDING GEARp. 135
FIGURE 39. MAIN LANDING GEAR INSTALLATIONp. 135
FIGURE 40. MAIN GEAR STRUT ASSEMBLYp. 139
FIGURE 41. MAIN WHEEL ASSEMBLYp. 142
FIGURE 42. MAIN WHEEL BRAKE ASSEMBLYp. 144
FIGURE 43. NOSE LANDING GEAR INSTALLATIONp. 146
FIGURE 44. NOSE GEAR STRUT ASSEMBLYp. 150
FIGURE 45. NOSE WHEEL ASSEMBLYp. 153
FIGURE 46. NOSE GEAR STEERING INSTALLATIONp. 155
FIGURE 47. BRAKE SYSTEM INSTALLATIONp. 158
FIGURE 48. DUAL BRAKE INSTALLATIONp. 161
FIGURE 49. MASTER CYLINDER AND PARKING BRAKE VALVEp. 163
FIGURE 50. LANDING GEAR SELECTOR MECHANISM INSTALLATIONp. 165
+SECTION V – CABIN EQUIPMENTp. 168
FIGURE 51. CABIN INTERIOR FINISHING INSTALLATION (31P-3 TO 31P-7630005 INCL)p. 168
FIGURE 51A. CABIN INTERIOR FINISHING INSTALLATION (3 P-7630006 AND UP)p. 174
FIGURE 52. INTERIOR WINDOWS AND CURTAINS INSTALLATIONp. 177
FIGURE 53. CABIN HEADLINER INSTALLATION (31P-3 TO 31P-7630019 INCL)p. 180
FIGURE 53A. CABIN HEADLINER INSTALLATION (S/N 31P-7730001 AND UP)p. 183
FIGURE 54. CARPET INSTALLATIONp. 185
FIGURE 55. CREW SEATS INSTALLATIONp. 190
FIGURE 56. PASSENGER SEATS INSTALLATIONp. 196
FIGURE 57. 7TH SEAT INSTALLATIONp. 203
FIGURE 58. 8TH SEAT INSTALLATIONp. 208
FIGURE 59. TOILET SEAT INSTALLATIONp. 213
FIGURE 60. FORWARD CABIN DIVIDER, FIRE EXTINGUISHER AND STORAGE CABINET INSTALLATION (31P-3 TO 31P-7630005 INCLUSIVEp. 217
FIGURE 60A. FORWARD CABIN DIVIDER AND STORAGE CABINET INSTALLATION (31 P-7630006 AND UPp. 220
FIGURE 61. FOLDING TABLE AND REFRESHMENT CABINET INSTALLATIONp. 222
FIGURE 62. REAR DIVIDER PANEL AND BEVERAGE DISPENSER INSTALLATIONp. 224
FIGURE 63. BAGGAGE COMPARTMENTS FINISHING INSTALLATIONp. 226
+SECTION VI – INSTRUMENTSp. 229
FIGURE 64. INSTRUMENT PANEL INSTALLATIONp. 229
FIGURE 65. DUAL INSTRUMENT PANEL INSTALLATIONp. 236
FIGURE 66. TRUE AIRSPEED INDICATOR INSTALLATION (31P-3 TO 31P-7530028 INCL)p. 239
FIGURE 67. MISCELLANEOUS AIR AND FLUID LINES INSTALLATIONp. 241
FIGURE 68. STATIC AIR SYSTEM INSTALLATIONp. 244
FIGURE 69. GYRO INSTRUMENT LINES INSTALLATIONp. 247
FIGURE 70. DUAL INSTRUMENT AIR SYSTEM INSTALLATIONp. 249
+SECTION VII – POWER PLANTp. 251
FIGURE 71. POWER PLANT INSTALLATIONp. 251
FIGURE 72. ENGINE BAFFLE INSTALLATIONp. 255
FIGURE 73. CYLINDER HEAD BAFFLE INSTALLATIONp. 257
FIGURE 74. ENGINE CONTROLS INSTALLATIONp. 260
FIGURE 75. ENGINE COWL INSTALLATIONp. 263
FIGURE 76. COWL FLAP ACTUATING MECHANISM INSTALLATIONp. 266
FIGURE 77. NACELLE INSTALLATIONp. 268
FIGURE 78. OIL COOLER INSTALLATIONp. 272
FIGURE 79. PROPELLER ASSEMBLYp. 274
FIGURE 79A. PROPELLER SYNCHRONIZER SYSTEM INSTALLATIONp. 277
FIGURE 79B. PROPELLER SYNCHROPHASER SYSTEM INSTALLATIONp. 279
+SECTION VIII – FUEL SYSTEMSp. 287
FIGURE 80. FUEL CONTROL PANEL INSTALLATIONp. 287
FIGURE 81. LEFT ENGINE FUEL SYSTEM INSTALLATIONp. 290
FIGURE 82. RIGHT ENGINE FUEL SYSTEM INSTALLATIONp. 295
FIGURE 83. AUXILIARY FUEL LINES INSTALLATIONp. 300
FIGURE 84. FUEL SYSTEM COMPONENTSp. 303
FIGURE 85. FUEL FLOW GAUGE INSTALLATIONp. 306
FIGURE 86. MAIN FUEL CELL AND LINER INSTALLATIONp. 308
FIGURE 87. NACELLE AND AUXILIARY FUEL CELL AND LINER INSTALLATIONp. 311
+SECTION IX – CONTROLSp. 314
FIGURE 88. PEDESTAL INSTALLATIONp. 314
FIGURE 89. PEDESTAL CONTROL ASSEMBLYp. 319
FIGURE 90. AILERON CONTROL INSTALLATIONp. 322
FIGURE 91. AILERON TRIM INSTALLATIONp. 325
FIGURE 92. RUDDER CONTROL INSTALLATIONp. 329
FIGURE 93. RUDDER TRIM INSTALLATIONp. 332
FIGURE 94. ELEVATOR CONTROL INSTALLATIONp. 335
FIGURE 95. ELEVATOR TRIM INSTALLATIONp. 338
FIGURE 96. FLAP CONTROL INSTALLATIONp. 341
FIGURE 97. CONTROL WHEEL INSTALLATIONp. 343
FIGURE 98. RUDDER PEDAL INSTALLATIONp. 347
+SECTION X – HYDRAULIC SYSTEMSp. 350
FIGURE 99. FORWARD HYDRAULIC SYSTEM INSTALLATIONp. 350
FIGURE 100. AFT HYDRAULIC SYSTEM INSTALLATIONp. 353
FIGURE 101. HYDRAULIC PUMPS INSTALLATIONp. 355
FIGURE 102. HYDRAULIC SYSTEM COMPONENTS (OZONE)p. 358
FIGURE 102A. HYDRAULIC SYSTEM COMPONENTS (WIEBEL)p. 360
FIGURE 103. HYDRAULIC POWERPAK ASSEMBLY (OZONE)p. 363
FIGURE 103A. HYDRAULIC POWERPAK COMPONENTS (OZONE)p. 366
FIGURE 104. HYDRAULIC POWERPAK ASSEMBLY (WIEBEL)p. 368
FIGURE 104A. HYDRAULIC POWERPAK COMPONENTS (WIEBEL)p. 371
+SECTION XI – ENVIRONMENTALp. 373
FIGURE 105. HEATER AND EVAPORATOR INSTALLATIONp. 373
FIGURE 106. HEATER ASSEMBLYp. 377
FIGURE 107. HEATER COMBUSTION AIR BLOWER AND MOTOR ASSEMBLYp. 379
FIGURE 108. HEATER IGNITION ASSEMBLYp. 381
FIGURE 109. CABIN PRESSURE CONTROL SYSTEM INSTALLATIONp. 383
FIGURE 110. AIR DISTRIBUTION DUCT INSTALLATIONp. 386
FIGURE 111. FUSELAGE PRESSURIZATION AIR SUPPLY INSTALLATIONp. 388
FIGURE 112. WING PRESSURIZATION AND PNEUMATIC AIR SUPPLY INSTALLATIONp. 391
FIGURE 113. OXYGEN SYSTEM INSTALLATIONp. 394
FIGURE 114. FUSELAGE FREON LINES INSTALLATIONp. 397
FIGURE 115. FREON LINES INSTALLATION – WINGp. 399
FIGURE 116. FREON CONDENSER SCOOP INSTALLATIONp. 401
FIGURE 117. WINDSHIELD DEFROSTER SYSTEM INSTALLATIONp. 403
FIGURE 118. PNEUMATIC DE-ICING SYSTEM INSTALLATIONp. 405
+SECTION XII – ELECTRICAL SYSTEMp. 408
FIGURE 119. PRIMARY AND AUXILIARY POWER INSTALLATIONp. 408
FIGURE 120. FORWARD ELECTRICAL SYSTEM INSTALLATIONp. 411
FIGURE 120A. INSTRUMENT PANEL HARNESS INSTALLATIONp. 414
FIGURE 121. AFT ELECTRICAL SYSTEM INSTALLATIONp. 417
FIGURE 121A. SWITCH AND CIRCUIT BREAKERS SYSTEM INSTALLATIONp. 419
FIGURE 122. STROBE LIGHTS INSTALLATION (S/N 31P-3 TO 31P-7300146 INCL)p. 422
FIGURE 122A. STROBE LIGHTS INSTALLATION (S/N 31P-7300147 AND UP)p. 425
FIGURE 123. OVERHEAD SWITCH PANEL INSTALLATIONp. 427
FIGURE 124. LANDING LIGHT AND ICE DETECTION LIGHT INSTALLATIONp. 430
FIGURE 125. ELECTRIC WINDSHIELD WIPER INSTALLATIONp. 432
FIGURE 126. PROPELLER ELECTRIC DE-ICER INSTALLATIONp. 434
+SECTION XIII – ELECTRONICS SYSTEMp. 437
FIGURE 126A. ALTIMATIC PILOT III B INSTALLATIONp. 437
FIGURE 126B. ALTIMATIC PILOT III B-1 INSTALLATIONp. 440
FIGURE 127. ALTIMATIC PILOT III C INSTALLATIONp. 443
FIGURE 127A. ALTIMATIC V F/D AND V F/D-1 AUTOPILOT INSTALLATIONp. 447
FIGURE 127B. ALTIMATIC V AND V-1 AUTOPILOT INSTALLATIONp. 451
FIGURE 127C. RADIO MAGNETIC INDICATOR INSTALLATION (USED WITH ALTIMATIC III B & ALTIMATIC III B-1)p. 454
FIGURE 127D. RADIO MAGNETIC INDICATOR INSTALLATION (USED WITH ALTIMATIC V, V-1, V F/D OR V F/D-1)p. 456
FIGURE 128. GLIDE SLOPE COUPLER INSTALLATIONp. 458
FIGURE 128A. PIPER AUTOMATIC LOCATOR (ELT) INSTALLATION (GARRETT MFG. LTD)p. 460
FIGURE 128B. PIPER AUTOMATIC LOCATOR (ELT) INSTALLATION (COMMUNICATIONS COMPONENTS CORP)p. 462
FIGURE 128C. PIPER AUTOMATIC LOCATOR (ELT) INSTALLATION (NARCO AVIONICS)p. 464
FIGURE 128D. R.C.A. RADAR INSTALLATIONp. 466
FIGURE 128E. BENDIX RADAR INSTALLATION (RDR-110) (31P-3 TO 31P-7530022 INCL)p. 468
FIGURE 129. BENDIX RADAR INSTALLATION (RDR-130)p. 471
FIGURE 129A. BENDIX RADAR INSTALLATION (RDR-140)p. 473
FIGURE 129B. BENDIX RADAR INSTALLATION (RDR-150)p. 475
FIGURE 129C. RADAR ALTIMETER INSTALLATIONp. 477
FIGURE 129D. COLLINS RADIO ALTIMETER INSTALLATIONp. 479
FIGURE 129E. ENCODING ALTIMETER AND ALTITUDE ALERTER INSTALLATIONp. 481
FIGURE 129F. RADIO TELEPHONE SYSTEM INSTALLATIONp. 483
FIGURE 130. ANTENNA CABLE, SPEAKER, STATIC WICKS, JACK AND MIKE INSTALLATIONp. 485
FIGURE 130A. RADIO JUNCTION BOX AND TRANSMITTER SELECTOR ASSEMBLIESp. 487
RADIO DRAWINGSp. 490
+SECTION XIV – MISCELLANEOUSp. 495
FIGURE 131. PLACARDS AND EXTERIOR STENCILSp. 495
OPTIONAL EQUIPMENT KITS AND REPAIR KITSp. 500
NUMERICAL INDEXp. 504
How the Parts Listings Are Organized
The parts list columns follow Piper’s standard format. The Figure and Index Number column ties each entry to the illustration. The Part Number column gives the identifying number that must appear on every parts order. The Code column flags special-use parts. The Nomenclature column names the part, and the degree of indentation in that column tells you whether the item is a component of the assembly above it. The No. Req. column gives either the quantity per aircraft or the quantity per assembly, and the Serial Numbers Affected column pins the item to the airplanes that actually use it.
Attaching hardware such as nuts, bolts, and screws is not generally supplied by Piper, but the catalog still lists the required attaching parts for main assemblies and installations by identifying number for convenience. Optional equipment items appear in their proper sequence and sections rather than being segregated, so they are identified by their descriptions alone.
What You Can Do With This Catalog
- Identify the correct replacement part for any PA-31P system by figure and index number
- Confirm parts compatibility against your aircraft’s exact serial number
- Cross-reference superseded parts and kits, including serial-block-specific updates
- Rebuild landing gear, hydraulic powerpaks, heaters, propellers, and control assemblies with correct component breakdowns
- Order with the exact Piper part number, avoiding wrong-part returns
- Support restoration, annual inspection, and major repair work on 1970-1977 Pressurized Navajo airframes
Get Your Piper PA-31P Parts Catalog Instantly
This Piper PA-31P Pressurized Navajo Illustrated Parts Catalog is delivered as an instant PDF download after checkout. There is no shipping, no waiting for a printed copy, and no risk of a misprinted page. Open it on a laptop, tablet, or phone in the shop, zoom into the exploded views for detail, and print any figure or parts listing you want to keep at the bench. Whether you are ordering a single bracket or rebuilding an entire system, having document 753 769 on hand means every part number, quantity, and serial-number application is one search away.
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