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  2. Auto Parts
  3. Engine Components
  4. Cylinder Block Components
  5. Engine Piston
  6. ACDelco 12550059

ACDelco 12550059 Engine Piston

ACDelco 12550059 Engine Piston Image 1
ACDelco 12550059 Engine Piston Image 2
ACDelco 12550059 Engine Piston

ACDelco
Brand:ACDelco
Part Number: 12550059
UPC: 195491148963
Weight: 2.95 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the ACDelco 12550059 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:

Grade Type:
Regular
Oversized:
Yes
Piston Head Type:
Flat
Piston Inside Diameter:
3.78 in.
Piston Inside Diameter:
96 mm
Piston Material:
Aluminum
Piston Outside Diameter:
104 mm
Piston Outside Diameter:
4.09 in.
Piston Pin Incorporated Bearings:
No
Piston Pin Inside Diameter:
0.63 in.
Piston Pin Inside Diameter:
15.95 mm
Piston Pin Length:
2.76 in.
Piston Pin Length:
70 mm
Piston Pin Material:
Steel
Piston Pin Outside Diameter:
1.22 in.
Piston Pin Outside Diameter:
30.991 mm
Programming Required:
No
Skirt Length:
3.71 in.
Skirt Length:
94.19 mm
Skirt Type:
Partial
Country of Origin:
US

Select a vehicle to narrow ACDelco 12550059 Engine Piston fitment info!

Last Updated: 09/26/2023

Years Vehicle Per Vehicle Fit NotesFitment Notes

1994

 

1994

 
Chevrolet Blazer

6.5L V8 Diesel OHV Turbo
8
 
Eng: L56
8th VIN Digit: S
 

Chevrolet Blazer



6.5L V8 Diesel OHV Turbo Eng: L56
8th VIN Digit: S

8 Per Vehicle

1996

 

1995

 

1994

 

1996

 

1995

 

1994

 
Chevrolet C1500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L56
8th VIN Digit: S
 

Chevrolet C1500



6.5L V8 Diesel OHV Turbo Eng: L56
8th VIN Digit: S

8 Per Vehicle

1995

 

1994

 

1995

 

1994

 
Chevrolet C1500

6.5L V8 Diesel OHV
8
 
Eng: L49
8th VIN Digit: P
 

Chevrolet C1500



6.5L V8 Diesel OHV Eng: L49
8th VIN Digit: P

8 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1999

 

1998

 

1997

 

1996

 

1995

 
Chevrolet C1500 Suburban

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

Chevrolet C1500 Suburban



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
Chevrolet C2500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

Chevrolet C2500



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

1998

 

1997

 

1996

 

1995

 

1994

 

1998

 

1997

 

1996

 

1995

 

1994

 
Chevrolet C2500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L56
8th VIN Digit: S
 

Chevrolet C2500



6.5L V8 Diesel OHV Turbo Eng: L56
8th VIN Digit: S

8 Per Vehicle

1995

 

1994

 

1995

 

1994

 
Chevrolet C2500

6.5L V8 Diesel OHV
8
 
Eng: L49
8th VIN Digit: P
 

Chevrolet C2500



6.5L V8 Diesel OHV Eng: L49
8th VIN Digit: P

8 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 
Chevrolet C2500 Suburban

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

Chevrolet C2500 Suburban



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
Chevrolet C3500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

Chevrolet C3500



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 
Chevrolet Express 2500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

Chevrolet Express 2500



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 
Chevrolet Express 3500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

Chevrolet Express 3500



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

1995

 

1994

 

1995

 

1994

 
Chevrolet G20

6.5L V8 Diesel OHV
8
 
Eng: L49
8th VIN Digit: P
 

Chevrolet G20



6.5L V8 Diesel OHV Eng: L49
8th VIN Digit: P

8 Per Vehicle

1996

 

1995

 

1994

 

1996

 

1995

 

1994

 
Chevrolet G30

6.5L V8 Diesel OHV
8
 
Eng: L57
8th VIN Digit: Y
 

Chevrolet G30



6.5L V8 Diesel OHV Eng: L57
8th VIN Digit: Y

8 Per Vehicle

1998

 

1997

 

1996

 

1995

 

1994

 

1998

 

1997

 

1996

 

1995

 

1994

 
Chevrolet K1500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L56
8th VIN Digit: S
 

Chevrolet K1500



6.5L V8 Diesel OHV Turbo Eng: L56
8th VIN Digit: S

8 Per Vehicle

1995

 

1994

 

1995

 

1994

 
Chevrolet K1500

6.5L V8 Diesel OHV
8
 
Eng: L49
8th VIN Digit: P
 

Chevrolet K1500



6.5L V8 Diesel OHV Eng: L49
8th VIN Digit: P

8 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 
Chevrolet K1500 Suburban

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

Chevrolet K1500 Suburban



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
Chevrolet K2500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

Chevrolet K2500



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

1995

 

1994

 

1995

 

1994

 
Chevrolet K2500

6.5L V8 Diesel OHV
8
 
Eng: L49
8th VIN Digit: P
 

Chevrolet K2500



6.5L V8 Diesel OHV Eng: L49
8th VIN Digit: P

8 Per Vehicle

1995

 

1994

 

1995

 

1994

 
Chevrolet K2500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L56
8th VIN Digit: S
 

Chevrolet K2500



6.5L V8 Diesel OHV Turbo Eng: L56
8th VIN Digit: S

8 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 
Chevrolet K2500 Suburban

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

Chevrolet K2500 Suburban



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
Chevrolet K3500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

Chevrolet K3500



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 
Chevrolet P30

6.5L V8 Diesel OHV
1
 
Eng: L57
8th VIN Digit: Y
 

Chevrolet P30



6.5L V8 Diesel OHV Eng: L57
8th VIN Digit: Y

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 
Chevrolet P30

6.5L V8 Diesel OHV Turbo
1
 
Eng: L65
8th VIN Digit: F
 

Chevrolet P30



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

1 Per Vehicle

1998

 

1997

 

1996

 

1995

 

1998

 

1997

 

1996

 

1995

 
Chevrolet Tahoe

6.5L V8 Diesel OHV Turbo
8
 
Eng: L56
8th VIN Digit: S
 

Chevrolet Tahoe



6.5L V8 Diesel OHV Turbo Eng: L56
8th VIN Digit: S

8 Per Vehicle

1996

 

1995

 

1994

 

1996

 

1995

 

1994

 
GMC C1500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L56
8th VIN Digit: S
 

GMC C1500



6.5L V8 Diesel OHV Turbo Eng: L56
8th VIN Digit: S

8 Per Vehicle

1995

 

1994

 

1995

 

1994

 
GMC C1500

6.5L V8 Diesel OHV
8
 
Eng: L49
8th VIN Digit: P
 

GMC C1500



6.5L V8 Diesel OHV Eng: L49
8th VIN Digit: P

8 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1999

 

1998

 

1997

 

1996

 

1995

 
GMC C1500 Suburban

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

GMC C1500 Suburban



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
GMC C2500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

GMC C2500



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

1998

 

1997

 

1996

 

1995

 

1994

 

1998

 

1997

 

1996

 

1995

 

1994

 
GMC C2500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L56
8th VIN Digit: S
 

GMC C2500



6.5L V8 Diesel OHV Turbo Eng: L56
8th VIN Digit: S

8 Per Vehicle

1995

 

1994

 

1995

 

1994

 
GMC C2500

6.5L V8 Diesel OHV
8
 
Eng: L49
8th VIN Digit: P
 

GMC C2500



6.5L V8 Diesel OHV Eng: L49
8th VIN Digit: P

8 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 
GMC C2500 Suburban

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

GMC C2500 Suburban



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
GMC C3500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

GMC C3500



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

1995

 

1994

 

1995

 

1994

 
GMC G2500

6.5L V8 Diesel OHV
8
 
Eng: L49
8th VIN Digit: P
 

GMC G2500



6.5L V8 Diesel OHV Eng: L49
8th VIN Digit: P

8 Per Vehicle

1996

 

1995

 

1994

 

1996

 

1995

 

1994

 
GMC G3500

6.5L V8 Diesel OHV
8
 
Eng: L57
8th VIN Digit: Y
 

GMC G3500



6.5L V8 Diesel OHV Eng: L57
8th VIN Digit: Y

8 Per Vehicle

1998

 

1997

 

1996

 

1995

 

1994

 

1998

 

1997

 

1996

 

1995

 

1994

 
GMC K1500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L56
8th VIN Digit: S
 

GMC K1500



6.5L V8 Diesel OHV Turbo Eng: L56
8th VIN Digit: S

8 Per Vehicle

1995

 

1994

 

1995

 

1994

 
GMC K1500

6.5L V8 Diesel OHV
8
 
Eng: L49
8th VIN Digit: P
 

GMC K1500



6.5L V8 Diesel OHV Eng: L49
8th VIN Digit: P

8 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1999

 

1998

 

1997

 

1996

 

1995

 
GMC K1500 Suburban

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

GMC K1500 Suburban



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
GMC K2500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

GMC K2500



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

1995

 

1994

 

1995

 

1994

 
GMC K2500

6.5L V8 Diesel OHV
8
 
Eng: L49
8th VIN Digit: P
 

GMC K2500



6.5L V8 Diesel OHV Eng: L49
8th VIN Digit: P

8 Per Vehicle

1995

 

1994

 

1995

 

1994

 
GMC K2500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L56
8th VIN Digit: S
 

GMC K2500



6.5L V8 Diesel OHV Turbo Eng: L56
8th VIN Digit: S

8 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 
GMC K2500 Suburban

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

GMC K2500 Suburban



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
GMC K3500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

GMC K3500



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

1999

 

1998

 

1997

 

1999

 

1998

 

1997

 
GMC P3500

6.5L V8 Diesel OHV Turbo
1
 
Eng: L65
8th VIN Digit: F
 

GMC P3500



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 
GMC P3500

6.5L V8 Diesel OHV
1
 
Eng: L57
8th VIN Digit: Y
 

GMC P3500



6.5L V8 Diesel OHV Eng: L57
8th VIN Digit: Y

1 Per Vehicle

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 
GMC Savana 2500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

GMC Savana 2500



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 
GMC Savana 3500

6.5L V8 Diesel OHV Turbo
8
 
Eng: L65
8th VIN Digit: F
 

GMC Savana 3500



6.5L V8 Diesel OHV Turbo Eng: L65
8th VIN Digit: F

8 Per Vehicle

1997

 

1996

 

1995

 

1994

 

1997

 

1996

 

1995

 

1994

 
GMC Yukon

6.5L V8 Diesel OHV Turbo
8
 
Eng: L56
8th VIN Digit: S
 

GMC Yukon



6.5L V8 Diesel OHV Turbo Eng: L56
8th VIN Digit: S

8 Per Vehicle