Light Bulb Reference Guide for 1970 Mustang – included part number, quantity and link to purchase part from MustangParts.AverageJoeRestoration.com
Exterior Bulbs
| Year | Description/Location | Mfg Bulb Part # | Qty |
| 1970 | Tail/Brake Lamps | 1157 | 2 |
| 1970 | Tail/Brake Lamps (GT350/500) | 1157 | 6 |
| 1970 | Backup Lights (in Rear Valance) | 1142 | 2 |
| 1970 | Front Side Marker Fender Lamps | 194 | 2 |
| 1970 | Rear Side Marker Quarter Panel Lamps | 194 | 2 |
| 1970 | Front Marker Lamps (in Valance Mount) | 1157A | 2 |
| 1970 | Turn Signal Indicators (Hood Scoop) | 1895 | 2 |
| 1970 | Sport Fog Lamps (Grille Mount) | 1157A | 2 |
| 1970 | License Plate Lamp (except GT350/500) | 97 | 1 |
| 1970 | Trunk Lamp (Option) | 631 | 1 |
| 1970 | Under Hood Lamp (Option) | 631 | 1 |
Interior Bulbs
| Year | Description/Location | Mfg Bulb Part # | Qty |
| 1970 | Courtesy Lamps – Under Dash in Foot Wells | 631 | 2 |
| 1970 | Map Light – Passenger Dash Panel (Option) | 1004 | 1 |
| 1970 | Glove Box Lamp (Option) | 1895 | 1 |
| 1970 | Ashtray Illumination (Option) | 1445 | 1 |
| 1970 | Dome Light | 105 | 1 |
| 1970 | Deluxe Door Panel Courtesy Lights (Option) | 212 | 2 |
| 1970 | Seatbelt Warning Lamp (Option) | 194 | 1 |
| 1970 | Interior Quarter Panel Lamps | 1003 | 2 |
Interior Bulbs
| Year | Description/Location | Mfg Bulb Part # | Qty |
| 1970 | Shifter Illumination Lamp (Auto Only) | 1445 | 1 |
| 1970 | Dash Clock Lights (Passenger Side)* | 1895 | 2 |
| 1970 | Climate (Heater/AC) Controls Illumination* | 1895 | 1 |
| 1970 | Radio Dial Lamp (Factory Installed Only)* | 1893 | 1 |
| 1970 | Console Gauges (GT350/500) | 1895 | 2 |
Instrument Cluster
| Year | Description/Location | Mfg Bulb Part # |
| 1970 | Instrument Panel Lights | 194 |
| 1970 | Turn Signal Indicator | 1895 |
| 1970 | Warning – Oil, Alternator, Brakes | 1895 |
| 1970 | Bright Indicator | 1895 |