Description:
Get the ACDelco 12654421 Engine Piston for your vehicle. Buy now and secure your purchase online!
GM Genuine Parts Engine Pistons are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov
Features and Benefits:
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
- GM regularly updates production and service part designs to integrate new materials and technologies
- Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
Specifications:
Assembly Lubricant Included:
No
Oil Ring Thickness:
0.097 in.
Oil Ring Thickness:
2.46 mm
Oil Spacer Ring Thickness:
0.087 in.
Oil Spacer Ring Thickness:
2.2 mm
Piston Inside Diameter:
3.555 in.
Piston Inside Diameter:
90.3 mm
Piston Material:
Aluminum
Piston Outside Diameter:
3.701 in.
Piston Outside Diameter:
94 mm
Piston Pin Incorporated Bearings:
No
Piston Pin Inside Diameter:
0.63 in.
Piston Pin Inside Diameter:
16 mm
Piston Pin Length:
2.317 in.
Piston Pin Length:
58.85 mm
Piston Pin Material:
Steel
Piston Pin Outside Diameter:
0.945 in.
Piston Pin Outside Diameter:
24 mm
Ring Inside Diameter:
3.478 in.
Ring Inside Diameter:
88.35 mm
Ring Outside Diameter:
3.7 in.
Ring Outside Diameter:
93.97 mm
Second Compression Ring Thickness:
0.058 in.
Second Compression Ring Thickness:
1.48 mm
Top Compression Ring Thickness:
0.046 in.
Top Compression Ring Thickness:
1.18 mm
