Jeffrey D. Spraker (born March 13, 1959) is an American professional stock car racing driver, crew chief and team owner. He currently works as a crew chief for Martin Racing on their No. 52 Toyota in the ARCA Menards Series driven by Robert Martin. He also owns Spraker Racing Enterprises, an ARCA Menards Series team that fields the No. 63 Chevrolet part-time.
Spraker has 23 NASCAR Busch Series starts. In his first start at Martinsville Speedway in 1989, he started 26th and finished 27th after an engine failure.
In 2026, Spraker did not enter his own No. 63 car in the ARCA season opener at Daytona and he instead crew chiefed Robert Martin's No. 52 car, which failed to qualify for the race.
() (<span style="font-size:85%">Bold â Pole position awarded by qualifying time. Italics â Pole position earned by points standings or practice time. * â Most laps led.</span>)
() (<span style="font-size:85%">Bold â Pole position awarded by qualifying time. Italics â Pole position earned by points standings or practice time. * â Most laps led.</span>)