Pumps, filters & the famous Vortec spider injector. OEM, GM & aftermarket part numbers for 1988–1998 Chevy/GMC C/K 1500 & 2500. Always verify fitment for your exact year, engine & drivetrain before ordering.
⚠️ Verify before buying. Fitment varies by year, engine (4.3/5.0/5.7/7.4), and 2WD/4WD. These are reference numbers — confirm against your VIN/build before ordering.
📝 Vortec CSFI needs full pressure — a weak pump causes long cranks and lean codes before it dies outright. Test pressure at the rail: spec is roughly 60-66 psi key-on.
📝 The factory CSFI poppets clog and stick — rough idle, misfires, hard hot starts. GM's own fix was this MFI-style spider; it's a direct bolt-in under the upper intake, no tuning needed. The 4.3L V6 uses a different assembly.