Cap and rotor kit for 1996-1998 Vortec 5.0L/5.7L/7.4L distributors — a known OBS failure item — OEM, GM & aftermarket part numbers for 1988–1998 Chevy/GMC C/K 1500 & 2500.
📝 Vortec caps crack and corrode at the terminals — misfires and no-starts in damp weather. Stick with Delco; economy caps are a common comeback. The 4.3L V6 uses cap D328A instead.
⚠️ Verify before buying. Fitment varies by year, engine (4.3/5.0/5.7/7.4/6.5) and 2WD/4WD. Confirm against your VIN/build before ordering.