⚠️ 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.
1Engine Oil Filterverify
🛠 Fits: 1988-1998 C/K 1500 & 2500 (gasoline engines)
Spin-on oil filter for all gasoline engines (4.3L, 5.0L, 5.7L, 7.4L)
PF47EACDelco (OEM)
GM #: 12690386
Aftermarket: Fram PH30 · WIX 51060 · K&N HP-3001
📝 PF47E is the updated OEM number. Older listings may show PF47.
2Air Filterverify
🛠 Fits: 1988-1995 C/K 1500 & 2500 (5.7L TBI & carbureted; 5.0L)
Engine air filter — paper element type
A1090CACDelco (OEM)
Aftermarket: Fram CA3281 · WIX 42052 · K&N E-1500
📝 1996-1998 Vortec engines use a different housing; verify fitment for those years.
3Spark Plug (5.7L / 5.0L)verify
🛠 Fits: 1988-1995 C/K 1500 & 2500 (5.0L & 5.7L TBI)
Standard copper core spark plug for TBI and early Vortec V8 engines
R44LTSACDelco (OEM)
GM #: 19300692
Aftermarket: NGK TR55 · Champion C61 · Bosch 7418
📝 Gap: 0.044 in. 1996-1998 Vortec engines (L31) require platinum plugs — use ACDelco 41-932 (MR43LTS) instead.
4Spark Plug (5.7L Vortec / 4.3L)verify
🛠 Fits: 1996-1998 C/K 1500 & 2500 (5.7L Vortec L31, 4.3L Vortec)
Platinum spark plug for 1996+ Vortec engines
41-932ACDelco (OEM)
Aftermarket: NGK TR5GP · Champion RS12PYPB4
📝 Gap: 0.060 in. for Vortec L31.
5Water Pump (5.7L / 7.4L)verify
🛠 Fits: 1988-1998 C/K 1500 & 2500 (5.7L 350 and 7.4L 454)
Engine water pump with gasket
252-711ACDelco (OEM)
GM #: 88926225
Aftermarket: Gates 43006 · Airtex AW8855 · GMB 130-1830
📝 Note direction of impeller rotation — some aftermarket pumps are reverse-rotation. Confirm pump style (long or short nose) for your specific year.
6Water Pump (5.0L V8)verify
🛠 Fits: 1988-1995 C/K 1500 & 2500 (5.0L 305 V8)
Engine water pump for 5.0L 305 V8 engine
252-707ACDelco (OEM)
Aftermarket: Gates 43037 · Airtex AW8855
📝 5.0L and 5.7L use same water pump in many years — confirm with your VIN.
7Fuel Pump Assembly (In-Tank, TBI)verify
🛠 Fits: 1988-1995 C/K 1500 & 2500 (TBI gasoline, in-tank fuel system)
In-tank electric fuel pump module assembly
FE0104Delphi (OEM)
Aftermarket: Carter P74021M · Airtex E3938M · ACDelco MU1295
📝 Fitment varies by tank size (25 or 34 gallon) and single/dual tank. Verify with tank part number. 1996-1998 Vortec trucks use a different module.
8Alternator (105A)verify
🛠 Fits: 1988-1998 C/K 1500 & 2500 (most V8 applications)
Remanufactured alternator, 105 amp
321-1038ACDelco (OEM)
Aftermarket: Denso 210-0108 · Bosch AL4043X · BBB Industries 7952-8
📝 Amp rating and connector type vary by year and trim. Check original unit for correct plug style and amp rating (85A, 100A, or 105A).
9Thermostat (195°F)verify
🛠 Fits: 1988-1998 C/K 1500 & 2500 (all V8 gasoline)
Engine cooling thermostat, 195°F (standard)
131-142ACDelco (OEM)
Aftermarket: Gates 33476 · Motorad 395-195
📝 OEM spec is 195°F. Some owners run 180°F for performance — verify with your tune if running aftermarket EFI.
10Serpentine Beltverify
🛠 Fits: 1988-1998 C/K 1500 & 2500 (5.7L, belt length varies by A/C and other accessories)
Drive belt (serpentine) — single belt system
6K889ACDelco (OEM)
Aftermarket: Gates K060889 · Dayco 5060889 · Goodyear 6PK2260
📝 Belt length varies by A/C and emissions equipment. Always confirm exact belt length (e.g., 6K889 = 6-rib, 88.9 in.) using OEM routing diagram.
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