The 1989 GMC S15 was built to be tough yet versatile, making it a favorite among compact truck owners. Whether you’re restoring yours to factory condition or upgrading for performance, we’ll soon have a variety of 1989 GMC S15 parts available, including brake system replacements, weatherstripping, and fuel system components. Keeping a 1989 GMC S15 in peak condition ensures it remains a reliable and stylish classic.