Below is a list of manufacturer's catalog assistance phone numbers.
| A1 Cardone | 888-280-8324 | |
| ARC | 718-728-0701 | |
| Autolite | 800-890-2075 | |
| Bosch | 800-444-0470 | |
| Carlson Brake | 800-537-2838 | |
| Cloyes Timing | 479-646-1662 | |
| Delphi | 877-463-3574 | |
| Denso | 888-963-3676 | |
| Dorman Products | 800-523-2492 | |
| Eastern Catalytic | 800-553-7199 | |
| Federal Mogul - Includes: | ANCO | 800-325-8886 |
| BCA | " | |
| Carter | " | |
| Champion | " | |
| Fel-Pro | " | |
| Moog | " | |
| National | " | |
| Precision | " | |
| Sealed Power | " | |
| Wagner | " | |
| Four Seasons | 888-252-8344 | |
| Fram | 800-890-2075 | |
| Gates Corp. | 303-744-1911 | |
| Monroe Automotive | 734-384-7846 | |
| Monroe Heavy Duty | 734-384-7812 | |
| NGK | 877-473-6767 | |
| Perfection | 800-258-8312 | |
| Raybestos Brake | 800-407-9263 | |
| Standard Motor Products | 718-729-4357 | |
| Strongarm Lift Support | 800-790-5438 | |
| Sylvania Automotive Lighting | 800-347-3420 | |
| Walker Exhaust | 734-384-7834 | |
| Walker O2 | 970-245-5949 | |
| Wells Ignition | 800-558-9770 | |