| 15710 | Air Conditioning Extension Harness, 1974 Firebird | All, Blower Switch, Under Dash | | $101.00 | | Wiring Harnesses | Air Conditioning Extension Harness | Cabin |
| 38589 | Air Conditioning Harness, 1974 Firebird | Main Engine Compartment, All | | $224.00 | | Wiring Harnesses | Air Conditioning Harness | Underhood |
| 37796 | Alternator Conversion Kit, 1974 Firebird | Internal Regulator "SI" Series Alternator To "CS" Series (Serpentine Belt) Alternator | Note: For Use With Serpentine Belt ("CS130" Or "CS144" Type) Internal Regulated Alternators. | $26.00 | | Wiring Harnesses | Alternator Conversion Kit | Underhood |
| 43539 | Assembly Manual, 1974 Firebird | Factory Assembly Instruction Guide | | $36.00 | | Wiring Harnesses | Assembly Manual | Other |
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| 41378 | Battery Cable, Side Post, 1974 Firebird | Neg, 6 Cylinder | Note: 6 Cylinder Items Are Not Returnable. | $81.00 | | Battery Cables | Battery Cable-Negative | Underhood |
| 38854 | Battery Cable, Side Post, 1974 Firebird | Neg, V/8, All | | $81.00 | | Battery Cables | Battery Cable-Negative | Underhood |
| 38855 | Battery Cable Ground, 1974 Firebird | Neg, Redundant Ground, Frame To Motor | | $80.00 | | Battery Cables | Battery Cable-Negative | Underhood |
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| 22650 | Battery Cable, Side Post, 1974 Firebird | Pos, 6 Cylinder | Note: 6 Cylinder Items Are Not Returnable. | $81.00 | | Battery Cables | Battery Cable-Positive | Underhood |
| 41375 | Battery Cable, Side Post, 1974 Firebird | Pos, V/8, Except 455 C.I. | | $81.00 | | Battery Cables | Battery Cable-Positive | Underhood |
| 38426 | Battery Cable, Side Post, 1974 Firebird | Pos, V/8 455 C.I. | | $81.00 | | Battery Cables | Battery Cable-Positive | Underhood |
| 38131 | Breakerless SE Single Wire Electronic Ignition Kit, 1974 Firebird | For 1957-74 Breaker Point Distributors With Windowed Type Distributor Cap | | $189.00 | | Switches | Breakerless SE Single Wire Electronic Ignition | Underhood |
| 15650 | Console Harness, 1974 Firebird | All, With Automatic Trans | | $30.00 | | Wiring Harnesses | Console Harness | Cabin |
| 40042 | Courtesy Lamp Harness, 1974 Firebird | Center Roof Mounted Dome Light | | $56.00 | | Wiring Harnesses | Courtesy Lamp Harness | Cabin |
| 36038 | Courtesy Lamp Switch Jumper Harness, 1974 Firebird | Driver Side, Door Jamb Switch To Dash Harness | | $20.00 | | Wiring Harnesses | Courtesy Lamp Switch Jumper Harness | Cabin |
| 36039 | Courtesy Lamp Switch Jumper Harness, 1974 Firebird | Passenger Side, Door Jamb Switch To Dash Harness | | $14.00 | | Wiring Harnesses | Courtesy Lamp Switch Jumper Harness | Cabin |
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| 17765 | Dash Harness, 1974 Firebird | With Warning Lights | | $809.00 | | Wiring Harnesses | Dash Harness | Dash |
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| 17075 | Dash Harness, 1974 Firebird | With Gauges | | $809.00 | | Wiring Harnesses | Dash Harness | Dash |
| 44305 | Dash Harness Optional Item-Connector & Terminal Kit, 1974 Firebird | Includes 15-Way Female Connector With 40mm Mounting Rails, 11-Way & 4-Way Male Connectors, Terminals, & Instruction Sheet | Note: Used On Fuse Blocks With 40mm Mounting Rails. | $39.00 | | Wiring Harnesses | Dash Harness Optional Item | Dash |
| 44303 | Dash Harness Optional Item-Dual Relay Adapter Kit, 1974 Firebird | Includes Accessory Adapter With 30mm Mounting Rails, Relays, Terminals & Instruction Sheet | Note: Used On Fuse Blocks With 30mm Mounting Rails. | $30.00 | | Wiring Harnesses | Dash Harness Optional Item | Dash |
| 44304 | Dash Harness Optional Item-Dual Relay Adapter Kit, 1974 Firebird | Includes Accessory Adapter With 40mm Mounting Rails, Relays, Terminals & Instruction Sheet | Note: Used On Fuse Blocks With 40mm Mounting Rails. | $30.00 | | Wiring Harnesses | Dash Harness Optional Item | Dash |
| 44302 | Dash Harness Optional Item-Fuse Block Kit, 4-Way, 1974 Firebird | Includes 4-Way ATO Style Accessory Fuse Block With 30mm Mounting Rails, Terminal Buss Bars & Instruction Sheet | Note: Used On Fuse Blocks With 30mm Mounting Rails. | $22.00 | | Wiring Harnesses | Dash Harness Optional Item | Dash |
| 44301 | Dash Harness Optional Item-Fuse Block Kit, 4-Way, 1974 Firebird | Includes 4-Way ATO Style Accessory Fuse Block With Stand Alone Mounting Legs, And 30mm Mounting Rails, Terminal Buss Bars & Instruction Sheet | Note: Can Be Used As A Stand Alone Or On Fuse Blocks With 30mm Mounting Rails. | $22.00 | | Wiring Harnesses | Dash Harness Optional Item | Dash |
| 44307 | Dash Harness Optional Item-Junction Block & Connector Kit, 1974 Firebird | Includes 5-Way Accessory Block With 30mm Mounting Rails, 5 Female Connectors, Terminals, & Instruction Sheet | Note: Used On Fuse Blocks With 30mm Mounting Rails. | $47.00 | | Wiring Harnesses | Dash Harness Optional Item | Dash |
| 44306 | Dash Harness Optional Item-Junction Block & Connector Kit, 1974 Firebird | Includes 5-Way Accessory Block With 40mm Mounting Rails, 5 Female Connectors, Terminals, & Instruction Sheet | Note: Used On Fuse Blocks With 40mm Mounting Rails. | $47.00 | | Wiring Harnesses | Dash Harness Optional Item | Dash |
| 44801 | Dash Harness Optional Item-Spare Fuse Holder, 1974 Firebird | Includes Accessory Spare Fuse Holder With 30mm Mounting Rails & Instruction Sheet | Note: Used On Fuse Blocks With 30mm Mounting Rails. | $12.00 | | Wiring Harnesses | Dash Harness Optional Item | Dash |
| 44800 | Dash Harness Optional Item-Spare Fuse Holder, 1974 Firebird | Includes Accessory Spare Fuse Holder With 40mm Mounting Rails & Instruction Sheet | Note: Used On Fuse Blocks With 40mm Mounting Rails. | $12.00 | | Wiring Harnesses | Dash Harness Optional Item | Dash |
| 36057 | Distributor Wire, 1974 Firebird | Distributor Points To Coil Negative Terminal, V/8 | Note: Fits All GM V/8 Points Type Distributors From Approx. 1957 To 1974. | $21.00 | | Wiring Harnesses | Distributor Wire | Underhood |
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| 17105 | Engine Harness, 1974 Firebird | 6 Cylinder, All | Note: 6 Cylinder Items Are Not Returnable. | $412.00 | | Wiring Harnesses | Engine Harness | Engine |
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| 17065 | Engine Harness, 1974 Firebird | V/8 | | $395.00 | | Wiring Harnesses | Engine Harness | Engine |
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| 17120 | Engine Harness-HEI, 1974 Firebird | V/8 With H.E.I. Distributor | Note: This Harness Is To Be Used With An HEI Distributor. | $395.00 | | Wiring Harnesses | Engine Harness | Engine |
| 36173 | Engine Harness, 1974 Firebird | V/8 With A/C | | $395.00 | | Wiring Harnesses | Engine Harness | Engine |
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| 36174 | Engine Harness-HEI, 1974 Firebird | V/8 With A/C & H.E.I. Distributor | Note: This Harness Is To Be Used With An HEI Distributor. | $395.00 | | Wiring Harnesses | Engine Harness | Engine |
| 17115 | Engine Harness, 1974 Firebird | V/8 With Unitized Distributor | | $412.00 | | Wiring Harnesses | Engine Harness | Engine |
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| 36175 | Engine Harness, 1974 Firebird | V/8 With Unitized Distributor & A/C | | $428.00 | | Wiring Harnesses | Engine Harness | Engine |
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| 17070 | Forward Lamp Harness, 1974 Firebird | All | | $343.00 | | Wiring Harnesses | Forward Lamp Harness | Forward Lamp |
| 36272 | Fuel Tank Sender Wire, 1974 Firebird | | | $27.00 | | Wiring Harnesses | Fuel Tank Sender Wire | Rear |
| 38298 | Ground Wire, Distributor Point Plate, 1974 Firebird | From Distributor Point Plate To Distributor Housing | Note: Replaces Spot Welded Wire Asm On Point Plate Side. Fits All GM V/8 Point Type Distributors From Approx. 1957-1974. | $20.00 | | Wiring Harnesses | Ground Wire-Distributor Point Plate | Underhood |
| R0058272 | Harness Tape, 1974 Firebird | 3/4" Vinyl (100 Ft. Roll) Non-Adhesive | | $12.00 | | Wiring Harnesses | Harness Tape | Other |
| R0058276 | Harness Tape, 1974 Firebird | 1" Vinyl (100 Ft. Roll) Non-Adhesive | | $13.00 | | Wiring Harnesses | Harness Tape | Other |
| R0067108 | Harness Tape, 1974 Firebird | 1 1/4" Vinyl (100 Ft. Roll) Non-Adhesive | | $15.00 | | Wiring Harnesses | Harness Tape | Other |
| 39320 | Heater Harness, 1974 Firebird | Without A/C | | $61.00 | | Wiring Harnesses | Heater Harness | Dash |
| 18410 | Hood Lamp Kit, 1974 Firebird | Under Hood, Includes Socket, Wire & Bulb | | $69.00 | | Wiring Harnesses | Hood Lamp Replacement Kit | Underhood |
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| 20071252 | Ignition Cylinder And Keys, 1974 Firebird | Chrome, All | | $18.50 | | Switches | Ignition Cylinder And Keys | Cabin |
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| 01990110 | Ignition Switch, 1974 Firebird | All, With Tilt | | $14.00 | | Switches | Ignition Switch | Cabin |
| 01242101 | Kickdown Switch, 1974 Firebird | TH400 Auto Trans | | $19.00 | | Switches | Kickdown Switch | Cabin |
| 500274 | Low Fuel Indicator Module, 1974 Firebird | Generic "Adjustable" Low Fuel Warning Module | Note: A Complete Electronic Control Unit To Activate A Warning Lamp Or Relay When Fuel Level Drops Below A User Adjustable Level. Includes instruction sheet. | $69.00 | | Switches | Low Fuel Indicator Module | Dash |
| 01994163 | Neutral Safety And Backup Lamp Switch, 1974 Firebird | With Auto Trans, All | | $19.00 | | Switches | Neutral Safety And Backup Lamp Switch | Cabin |
| 03983965 | Neutral Safety Switch, 1974 Firebird | With Manual Trans (Clutch Pedal Activated) | Note: Includes Correct Firebird Mounting Bracket 03961589. | $58.00 | | Switches | Neutral Safety Switch | Cabin |
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| 35868 | Power Accessory Feed Wire, 1974 Firebird | Dash To Power Windows & Tachometer | | $23.00 | | Wiring Harnesses | Power Accessory Feed Wire | Cabin |
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| 14525 | Power Accessory Feed Wire, 1974 Firebird | Fuse Block To Power Accessories | Note: Used With Multiple Power Options, Windows Seats And/Or Top. | $25.00 | | Wiring Harnesses | Power Accessory Feed Wire | Dash |
| 36954 | Power Window Motor Adapter Harness, 1974 Firebird | Adapts "T" Shaped Motor Connector To Side By Side Blade Type Motor Connector | | $25.00 | | Wiring Harnesses | Power Window Motor Adapter Harness | Cabin |
| 39440 | Power Window Relay And Adapter Harness, 1974 Firebird | Includes New Standard Type Relay And Adapter To Mate To Factory Harness | | $45.00 | | Wiring Harnesses | Power Window Relay And Adapter Harness | Cabin |
| 04432793 | Power Window Switch, 1974 Firebird | 2 Button, Round Corner Style, Chrome | | $61.00 | | Switches | Power Window Switch | Cabin |
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| 21240 | Rear Lamp Intermediate Harness, 1974 Firebird | With Power Windows & Door Locks & Seatbelt Ignition Interlock, Dash To Qtr Panel | Note: Customer Must Supply Some Of Their Original Connectors To Build This Harness. | $344.00 | | Wiring Harnesses | Rear Lamp Harness | Rear |
| 21230 | Rear Lamp Harness, 1974 Firebird | | | $359.00 | | Wiring Harnesses | Rear Lamp Harness | Rear |
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| 38808 | Rear Window Defroster Harness, 1974 Firebird | Blower Type | | $32.00 | | Wiring Harnesses | Rear Window Defroster Harness | Rear |
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| 39324 | Tachometer Harness, 1974 Firebird | Dash Mounted | | $60.00 | | Wiring Harnesses | Tachometer Harness | Dash |
| 35869 | Tachometer Harness-HEI, 1974 Firebird | Dash Mounted | | $50.00 | | Wiring Harnesses | Tachometer Harness | Dash |
| 01261219 | Stop Lamp Switch, 1974 Firebird | Without Cruise | | $5.80 | | Switches | Stop Lamp Switch | Cabin |
| 28185 | Trunk Lamp Assembly, 1974 Firebird | All, Includes Extension Harness | | $56.00 | | Wiring Harnesses | Trunk Lamp Assembly | Rear |
| 14535 | Trunk Lamp Extension Harness, 1974 Firebird | | | $33.00 | | Wiring Harnesses | Trunk Lamp Extension Harness | Rear |
| 01997963 | Turn Signal Switch, Correct Part, 1974 Firebird | Without Cornering Lights | Note: Correct Part, No Adapter Pigtail Required. | $41.00 | | Switches | Turn Signal Switch | Cabin |
| 01893588 | Turn Signal Switch, Service Part, 1974 Firebird | Without Cornering Lights, Replaces Delco Part# D6208 | Note: This Is A Service Part, Adapter Pigtail Included Is Required For Installation. | $58.00 | | Switches | Turn Signal Switch | Cabin |