Availability

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Filters
Brand
- ACDelco (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
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Make/Model
Make/Engine
Bore (in.)
- 3.701 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 3.710 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Bore (mm)
- 94.000mm (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 94.250mm (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Rod Length
- 5.921 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 5.940 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Piston Style
- Dome, with four valve reliefs (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
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Piston Material
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- Hypereutectic aluminum (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Compression Height (in.)
- 1.172 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Wrist Pin Retainers Included
- No (1)
- Yes (1)
Piston Ring Thickness
- 1.20mm x 1.20mm x 2.00mm (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 1.20mm x 1.50mm x 2.50mm (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Second Ring Thickness
- 1.2mm (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 1.5mm (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Price Range
- $50-$100 (1)
- $100-$250 (1)

Pistons

Showing In Stock Items. Show All 13 Items.

Individual Parts

Part Groups

Results 1 - 2 of 2

ACDelco GM Genuine Parts Pistons 12641603

Pistons, GM Genuine Parts Pistons, 3.701 in. Bore, 1.20 mm, 1.20 mm, 2.00 mm Ring Grooves, Passenger Side, Each

Part Number: ADO-12641603

Not Yet Reviewed

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

Silv-O-Lite Hypereutectic Pistons 3538HCA.25MM

Pistons, Hypereutectic, 3.710 in. Bore, Dome, 1.172 in. CH, Float Pin, 1.2mm x 1.5mm x 2.0mm Rg Grooves, Buick, Cadillac, Chevy, GMC, Saturn, Set of 6

Part Number: UEM-3538HCA25MM

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

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