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Technical Support

For part specifications, vehicle fitment and cross reference information, enter a part number in our search box at the top of the page. Once you arrive at a product detail page, you will find tabs with part specifications, reverse vehicle fitment and cross reference data.

For customized engines, non-US vehicles, and advanced technical support, please contact the appropriate part manufacturer:


Autolite: Autolite Answers tech line 855-200-5200.

Bosch: 888-715-3616, 8am-5pm Monday - Friday, CST.

Champion: 1-800-325-8886, 7:30 a.m. – 4:30 p.m. (CST) Monday - Thursday, 7:30 a.m. – 4:00 p.m. (CST) Friday.

Denso: Visit Denso's "Contact Us" page.

E3: 904-567-5994, 10:00 a.m. – 5:00 p.m. (EST) Monday - Friday.

Gates: 303-744-5651, or apateam@gates.com.

NGK: Visit NGK's "Contact Us" page to email technical support, or call their tech line, available 8:30am-7pm, Monday-Friday, EST at 1-877-473-6767, prompt #2.

Pulstar: 1-888-800-6700, 8:00am - 5:00pm (MST) Monday - Friday.