62 products about 1988 GMC K2500 Crankshafts, Pistons, Rings & Connecting Rods foundVEHICLE SPECIFIC Product Specifications Notes: 5.0 & 5.7 Liter; All Models Item Dimensions: 3.0 x 3.0 x 0.5 inches Item Weight: 0.30 Pounds Fitment Type: Direct Replacement Replaces: 12577710 Part Description: 1988 GMC K2500 Plate Oil Seal More Info Vehicle Fitment 1988 GMC K2500 | Base, High Sierra, Sierra, Sierra Classic, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS $20.15 MSRP: $38.03
You Save: $17.88 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 4.3 Liter, W/AC; 5.0 & 5.7 Liter, W/AC; All Models; Stamped Nd Other Names: Crank Pulley, Crankshaft Pulley, Pulley Item Dimensions: 8.0 x 8.2 x 3.3 inches Item Weight: 3.90 Pounds Fitment Type: Direct Replacement Part Description: 1988 GMC K2500 Pulley More Info Vehicle Fitment 1988 GMC K2500 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS $34.64 MSRP: $57.36
You Save: $22.72 (40%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Belt Type: V-belt Bolts (Studs) Included: No Color: Black Crankshaft Pulley Groove Style: Single Crankshaft Pulley Shaft Opening Diameter: 1.06" Crankshaft Pulley Woodruff Key Compatible: No Diameter: 7.81" Grooves: 6 Item Grade: Standard Replacement Material: Steel Mount Hole Quantity: 3 OE Part Number: 10085754 Pulley Width: 1.19" Thickness: 1.19" UPC: 885484359154 Part Description: 1988 GMC K2500 OE Solutions Crankshaft Pulley More Info Vehicle Fitment 1988 GMC K2500 | All Trims | 6 Cyl 4.3L 1988 GMC K2500 | All Trims | 8 Cyl 5.0L 1988 GMC K2500 | All Trims | 8 Cyl 5.7L Show More VEHICLE SPECIFIC Product Specifications Notes: Premium;Standard Size; Ring Groove Widths: 3.0, 2.0, 4.0 (mm); Ductile Iron w/Plasma Moly top ring; Grey Iron 2nd ring 2nd Ring Face Design: Reverse Torsional 2nd Ring Material: Grey Iron 2nd Ring Width: 2.00 Bore Diameter: 3.9764 Cylinder Quantity: 8 File Fit: No Oil Ring Design: 2 Piece Conformatic Oil Ring Width: 4.00 Outside Diameter: 101.00 Package Alert: Full set Ring Material: Premium Moly Ring Set Groove Widths: 3.0 x 2.0 x 4.0 Standard Size: Standard Top Ring Face Design: Key Stone Top Ring Material: Ductile Iron w/Plasma Moly Top Ring Width: 3.00 UPC: 053059145147 Part Description: 1988 GMC K2500 Premium Piston Ring Set With Coating More Info Vehicle Fitment 1988 GMC K2500 | All Trims | 8 Cyl 6.2L VEHICLE SPECIFIC Product Specifications Notes: All Models Item Dimensions: 6.7 x 5.3 x 0.6 inches Item Weight: 0.50 Pounds Fitment Type: Direct Replacement Part Description: 1988 GMC K2500 Rear Main Seal Retainer More Info Vehicle Fitment 1988 GMC K2500 | Base, High Sierra, Sierra, Sierra Classic, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS $31.77 MSRP: $52.61
You Save: $20.84 (40%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 1 Piece;Rubber;Rear Material: Rubber UPC: 023913756062 Part Description: 1988 GMC K2500 Rear Crankshaft Seal Kit More Info Vehicle Fitment 1988 GMC K2500 | All Trims | 6 Cyl 4.3L 1988 GMC K2500 | All Trims | 8 Cyl 5.0L 1988 GMC K2500 | All Trims | 8 Cyl 5.7L Show More VEHICLE SPECIFIC Product Specifications Notes: Premium;.165" shallow oil ring groove; Standard Size; Ring Groove Widths: 5/64, 5/64, 3/16 (in.); Grey Iron w/Plasma Moly top ring; Grey Iron w/Phosphate Coating 2nd ring Bore Diameter: 4.000" Cylinder Quantity: 8 Outside Diameter: 4.000" Package Alert: Full Set Ring Material: Premium Moly Size: Standard UPC: 053059139504 Part Description: 1988 GMC K2500 Premium Piston Ring Set With Coating More Info Vehicle Fitment 1988 GMC K2500 | All Trims | 8 Cyl 5.7L VEHICLE SPECIFIC Product Specifications Notes: All Models Other Names: Bearing, Connecting Rod Bearing Item Dimensions: 4.3 x 4.2 x 2.2 inches Item Weight: 0.50 Pounds Fitment Type: Direct Replacement Replaces: 12523927 Part Description: 1988 GMC K2500 Bearings More Info Vehicle Fitment 1988 GMC K2500 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS $32.07 MSRP: $50.92
You Save: $18.85 (38%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: w/GMC THM700-R4 Trans Part Description: 1988 GMC K2500 Automatic Transmission Torque Converter Repair Sleeve Vehicle Fitment 1988 GMC K2500 | All Trims | All Engines VEHICLE SPECIFIC Product Specifications Notes: Standard Size; 3/4 grooved Package Alert: Full set Part Material: Steel Backed Overplated Bronze Alloy Size: Standard UPC: 614046346192 Part Description: 1988 GMC K2500 3 4 Grooved Crankshaft Main Bearing Set More Info Vehicle Fitment 1988 GMC K2500 | All Trims | 8 Cyl 6.2L VEHICLE SPECIFIC Product Specifications Notes: All Models; #1, #2 & #3; All Models; No. 1, 2, 3, 4 Other Names: Bearing, Main Bearings Item Dimensions: 4.2 x 4.2 x 2.2 inches Item Weight: 0.70 Pounds Fitment Type: Direct Replacement Part Description: 1988 GMC K2500 Bearings More Info Vehicle Fitment 1988 GMC K2500 | Base, High Sierra, Sierra, Sierra Classic, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS $23.44 MSRP: $38.79
You Save: $15.35 (40%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 1 Piece;PTFE; Rear Material: PTFE UPC: 023913754105 Part Description: 1988 GMC K2500 Rear Crankshaft Seal Kit More Info Vehicle Fitment 1988 GMC K2500 | All Trims | 6 Cyl 4.3L 1988 GMC K2500 | All Trims | 8 Cyl 5.0L 1988 GMC K2500 | All Trims | 8 Cyl 5.7L Show More VEHICLE SPECIFIC Product Specifications Notes: All Models; 6.2l; W/O Hi Limit Other Names: Piston Item Dimensions: 4.8 x 4.5 x 4.3 inches Item Weight: 3.10 Pounds Fitment Type: Direct Replacement Part Description: 1988 GMC K2500 Piston More Info Vehicle Fitment 1988 GMC K2500 | Base, High Sierra, Sierra, Sierra Classic, Sierra SLE, Sierra SLX | 8 Cyl 6.2 L DIESEL $155.21 MSRP: $246.43
You Save: $91.22 (38%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Premium;.200" deep oil ring groove; Standard Size; Ring Groove Widths: 5/64, 5/64, 3/16 (in.); Triple Chrome top ring; Grey Iron 2nd ring Bore Diameter: 101.60 mm Cylinder Quantity: 8 Outside Diameter: 4.000" Package Alert: Full Set Ring Material: Premium Chrome Size: Standard UPC: 053059132666 Part Description: 1988 GMC K2500 Premium Piston Ring Set With Coating More Info Vehicle Fitment 1988 GMC K2500 | All Trims | 8 Cyl 5.7L VEHICLE SPECIFIC Product Specifications Notes: 2 Piece;Rubber;Rear Material: Rubber UPC: 023913754488 Part Description: 1988 GMC K2500 Rear Crankshaft Seal More Info Vehicle Fitment 1988 GMC K2500 | All Trims | 8 Cyl 6.2L VEHICLE SPECIFIC Product Specifications Notes: All Models; W/Deep Oil Groove Other Names: Piston Ring Set, Piston Rings Item Dimensions: 4.8 x 4.7 x 0.6 inches Item Weight: 0.70 Pounds Fitment Type: Direct Replacement Replaces: 14089025 Part Description: 1988 GMC K2500 Piston Ring Set More Info Vehicle Fitment 1988 GMC K2500 | Base, High Sierra, Sierra, Sierra Classic, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS $55.52 MSRP: $88.18
You Save: $32.66 (38%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Premium;.200" deep oil ring groove; Standard Size; Ring Groove Widths: 5/64, 5/64, 3/16 (in.); Grey Iron w/Plasma Moly top ring; Grey Iron w/Phosphate Coating 2nd ring Bore Diameter: 3.736" Cylinder Quantity: 8 Outside Diameter: 3.736" Package Alert: Full Set Ring Material: Premium Moly Size: Standard UPC: 053059137845 Part Description: 1988 GMC K2500 Premium Piston Ring Set With Coating More Info Vehicle Fitment 1988 GMC K2500 | All Trims | 8 Cyl 5.0L VEHICLE SPECIFIC Product Specifications Notes: All Models; 5.0l Other Names: Piston, Piston Assembly Item Dimensions: 7.1 x 6.6 x 4.6 inches Item Weight: 1.80 Pounds Fitment Type: Direct Replacement Replaces: 14094013 Part Description: 1988 GMC K2500 Piston Kit-(Includes Rings) Std More Info Vehicle Fitment 1988 GMC K2500 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 5.0 L GAS $65.87 MSRP: $132.83
You Save: $66.96 (51%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Standard;.165" shallow oil ring groove; Standard Size; Ring Groove Widths: 5/64, 5/64, 3/16 (in.); Grey Iron w/Phosphate top ring; Grey Iron w/Phosphate Coating 2nd ring Bore Diameter: 4.000" Cylinder Quantity: 8 Outside Diameter: 4.000" Package Alert: Full Set Ring Material: Iron Size: Standard UPC: 053059139559 Part Description: 1988 GMC K2500 Premium Piston Ring Set W O Coating More Info Vehicle Fitment 1988 GMC K2500 | All Trims | 8 Cyl 5.7L VEHICLE SPECIFIC Product Specifications Other Names: Bearing Item Dimensions: 4.0 x 4.2 x 2.1 inches Item Weight: 0.30 Pounds Fitment Type: Direct Replacement Replaced by: 19256448 Part Description: 1988 GMC K2500 Bearings More Info Vehicle Fitment 1988 GMC K2500 | Sierra, Sierra SL, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS $15.16 MSRP: $25.08
You Save: $9.92 (40%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Standard Size; Hypereutectic; 3 Ring Groove Piston; Ring Groove Widths: 3.00, 2.00, 4.00 (mm); 2.114 CD; Flat Head w/Ricardo Cup & Keystone top ring groove - 21.5:1 C.R.; DUROSHIELD skirt coated piston Bore: 3.9764" Compression Distance: 2.114" Dome Volume CC: -2 Head Illustration: 123 Lock Ring: Included Material: Hypereutectic Minimum Clearance: See Piston Fitting Information on carton label Pin Diameter: 30.998 mm Pin Type: F Pin Weight Gram: 175 Ring 1 Qty: 1 Ring 1 Width: 3.00mm Ring 2 Qty: 1 Ring 2 Width: 2.00mm Ring 3 Qty: 1 Ring 3 Width: 4.00mm Size: Standard UPC: 614046227996 Weight W Pin Gram: 816 Weight w/o Pin Gram: 641 Part Description: 1988 GMC K2500 Flat Top Piston More Info Vehicle Fitment 1988 GMC K2500 | All Trims | 8 Cyl 6.2L VEHICLE SPECIFIC Product Specifications Notes: Steel Top Ring;Premium;.200" deep oil ring groove; Standard Size; Ring Groove Widths: 5/64, 5/64, 3/16 (in.); Grey Iron w/Phosphate Coating 2nd ring Bore Diameter: 101.60 mm Cylinder Quantity: 8 Outside Diameter: 4.000" Package Alert: Full Set Ring Material: Premium Moly Size: Standard UPC: 053059132604 Part Description: 1988 GMC K2500 Premium Piston Ring Set With Coating More Info Vehicle Fitment 1988 GMC K2500 | All Trims | 8 Cyl 5.7L VEHICLE SPECIFIC Product Specifications Notes: All Models Other Names: Bearing Item Dimensions: 4.3 x 4.3 x 2.2 inches Item Weight: 0.50 Pounds Fitment Type: Direct Replacement Part Description: 1988 GMC K2500 Bearings More Info Vehicle Fitment 1988 GMC K2500 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL $53.57 MSRP: $88.68
You Save: $35.11 (40%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: All Models Other Names: Piston Rings Item Dimensions: 4.8 x 4.7 x 0.6 inches Item Weight: 0.60 Pounds Fitment Type: Direct Replacement Part Description: 1988 GMC K2500 Piston Rings More Info Vehicle Fitment 1988 GMC K2500 | Base, High Sierra, Sierra, Sierra Classic, Sierra SLE, Sierra SLX | 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL $49.96 MSRP: $82.70
You Save: $32.74 (40%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Standard Size; A-Series aluminum bearings Housing Bore Max: 2.3757" Housing Bore Min: 2.3747" Oil Clearance Max: 0.091 Oil Clearance Min: 0.0010" Overall Length Max: 0.7530" Package Alert: Full set Part Material: A-Series Aluminum Size: Standard Standard Shaft Max: 2.2498" Standard Shaft Min: 2.2492" UPC: 614046379435 Wall Thickness Max: 0.0620" Part Description: 1988 GMC K2500 Aluminum Connecting Rod Bearing Set More Info Vehicle Fitment 1988 GMC K2500 | All Trims | 6 Cyl 4.3L VEHICLE SPECIFIC Product Specifications Notes: Standard;.190" deep oil ring groove; Standard Size; Use w/H728P piston; Ring Groove Widths: 5/64, 5/64, 3/16 (in.); Grey Iron top ring; Grey Iron 2nd ring Bore Diameter: 4.000" Cylinder Quantity: 6 Outside Diameter: 4.000" Package Alert: Full Set Ring Material: Iron Size: Standard UPC: 087674938914 Part Description: 1988 GMC K2500 Premium Piston Ring Set W O Coating More Info Vehicle Fitment 1988 GMC K2500 | All Trims | 6 Cyl 4.3L VEHICLE SPECIFIC Product Specifications Notes: All Models; No. 3 Other Names: Bearing Item Dimensions: 4.3 x 4.1 x 2.2 inches Item Weight: 0.70 Pounds Fitment Type: Direct Replacement Part Description: 1988 GMC K2500 Bearings More Info Vehicle Fitment 1988 GMC K2500 | Base, High Sierra, Sierra, Sierra Classic, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL $47.57 MSRP: $75.54
You Save: $27.97 (38%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Standard Size Housing Bore Max: 2.3757" Housing Bore Min: 2.3747" Oil Clearance Max: 0.091 Oil Clearance Min: 0.0010" Overall Length Max: 0.7530" Package Alert: Full set Part Material: Steel Backed Overplated Bronze Alloy Size: Standard Standard Shaft Max: 57.145 Standard Shaft Min: 2.2492" UPC: 724956163151 Wall Thickness Max: 1.575 Part Description: 1988 GMC K2500 Connecting Rod Bearing Set More Info Vehicle Fitment 1988 GMC K2500 | All Trims | 6 Cyl 4.3L VEHICLE SPECIFIC Product Specifications Notes: All Models; No. 1, 2, 4 Other Names: Bearing Item Dimensions: 4.1 x 4.1 x 2.1 inches Item Weight: 0.70 Pounds Fitment Type: Direct Replacement Part Description: 1988 GMC K2500 Bearings More Info Vehicle Fitment 1988 GMC K2500 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL $37.63 MSRP: $59.76
You Save: $22.13 (38%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Standard Size; Partial grooved Material: Overplated Copper-Lead Alloy Package Alert: Full set Part Material: Steel Backed Overplated Bronze Alloy Set Type: Main Set Size: Standard Sizes: Standard-1-10-20-30-40 UPC: 724956151622 Part Description: 1988 GMC K2500 Flange Partial Grooved Crankshaft Main Bearing Set More Info Vehicle Fitment 1988 GMC K2500 | All Trims | 6 Cyl 4.3L