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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: 855-267-2483, 8:00am - 5:00pm Monday - Friday, CST.

Champion: 1-800-325-8886, 7:30pm - 4:30pm Monday - Friday, CST.

Denso: Denso does not provide direct consumer technical support for these inquiries. For assistance with Denso products, please visit our "Contact Us" page.

NGK: Visit NGK's "Contact Us" page to email technical support, or call their tech line, available 8:30am - 5:00pm, Monday-Friday, EDT at 1-877-473-6767, prompt #2.

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