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ACDelco 8642478 Auto Trans Servo Piston
for 2004 (please select make/model)

ACDelco 8642478 Auto Trans Servo Piston - 2004

ACDelco
Brand:ACDelco
Part Number: 8642478
UPC: 00036666109269
Weight: 0.2 lbs
Condition:New



On Sale:

$38.58

Availability:
4 in Stock
Warehouse: US-12
Quantity:

Product Information

Description:

Get the ACDelco 8642478 Auto Trans Servo Piston for your 2004. Buy now and secure your purchase online!

GM Genuine Parts Automatic Transmission Servo 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:

Materials:
Cast Aluminum with Graphite/Teflon Seal
Piston Height:
.491 in.
Piston Height:
12.46 mm
Programming Required:
No
Rotor Outside Diameter:
2.890 in.
Rotor Outside Diameter:
73.4 mm
Country of Origin:
US

Select a vehicle to narrow ACDelco 8642478 Auto Trans Servo Piston fitment info!

Last Updated: 03/12/2024

Years Vehicle Per Vehicle Position Fit NotesFitment Notes

2007

 

2006

 

2005

 

2004

 

2007

 

2006

 

2005

 

2004

 
Buick Rainier

4.2L L6 Gas DOHC,
5.3L V8 Gas OHV
1
 
4th
 
W/RING
 

Buick Rainier



4.2L L6 Gas DOHC,
5.3L V8 Gas OHV

4th W/RING

1 Per Vehicle

2005

 

2004

 

2005

 

2004

 
Cadillac Escalade

5.3L V8 Gas OHV,
6.0L V8 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L65-E
 

Cadillac Escalade



5.3L V8 Gas OHV,
6.0L V8 Gas OHV

4th W/RING
Mfr Code: 4L65-E

1 Per Vehicle

2005

 

2004

 

2003

 

2002

 

2005

 

2004

 

2003

 

2002

 
Cadillac Escalade

5.3L V8 Gas OHV,
6.0L V8 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

Cadillac Escalade



5.3L V8 Gas OHV,
6.0L V8 Gas OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2006

 

2005

 

2004

 

2003

 
Cadillac Escalade ESV

6.0L V8 Gas OHV
1
 
4th
 
W/RING
 

Cadillac Escalade ESV



6.0L V8 Gas OHV

4th W/RING

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2002

 

2006

 

2005

 

2004

 

2003

 

2002

 
Cadillac Escalade EXT

6.0L V8 Gas OHV
1
 
4th
 
W/RING
 

Cadillac Escalade EXT



6.0L V8 Gas OHV

4th W/RING

1 Per Vehicle
Chevrolet Astro

4.3L V6 Gas OHV
1
 
4th
 
W/RING
 

Chevrolet Astro



4.3L V6 Gas OHV

4th W/RING

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2002

 

2006

 

2005

 

2004

 

2003

 

2002

 
Chevrolet Avalanche 1500

5.3L V8 Gas OHV
1
 
4th
 
W/RING
 

Chevrolet Avalanche 1500



5.3L V8 Gas OHV

4th W/RING

1 Per Vehicle
Chevrolet Blazer

4.3L V6 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

Chevrolet Blazer



4.3L V6 Gas OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle

2006

 

2005

 

2004

 

2006

 

2005

 

2004

 
Chevrolet Colorado

2.8L L4 Gas DOHC,
3.5L L5 Gas DOHC
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

Chevrolet Colorado



2.8L L4 Gas DOHC,
3.5L L5 Gas DOHC

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle
Chevrolet Corvette

5.7L V8 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

Chevrolet Corvette



5.7L V8 Gas OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle
Chevrolet Express 1500

4.3L V6 Gas OHV
1
 
4th
 
W/RING
 

Chevrolet Express 1500



4.3L V6 Gas OHV

4th W/RING

1 Per Vehicle

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 
Chevrolet Express 1500

5.3L V8 Gas OHV
1
 
4th
 
W/RING
 

Chevrolet Express 1500



5.3L V8 Gas OHV

4th W/RING

1 Per Vehicle

2005

 

2004

 

2003

 

2005

 

2004

 

2003

 
Chevrolet Express 2500

4.8L V8 Gas OHV,
5.3L V8 Gas OHV,
6.0L V8 CNG OHV,
6.0L V8 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

Chevrolet Express 2500



4.8L V8 Gas OHV,
5.3L V8 Gas OHV,
6.0L V8 CNG OHV,
6.0L V8 Gas OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle

2005

 

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 

2005

 

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 
Chevrolet Express 2500

4.3L V6 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

Chevrolet Express 2500



4.3L V6 Gas OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle

2004

 

2004

 
Chevrolet S10

4.3L V6 Gas OHV
1
 
4th
 
W/RING
 

Chevrolet S10



4.3L V6 Gas OHV

4th W/RING

1 Per Vehicle
Chevrolet Silverado 1500

5.3L V8 Flex OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

Chevrolet Silverado 1500



5.3L V8 Flex OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle
Chevrolet Silverado 1500

4.3L V6 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

Chevrolet Silverado 1500



4.3L V6 Gas OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 
Chevrolet Silverado 1500

6.0L V8 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

Chevrolet Silverado 1500



6.0L V8 Gas OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle
Chevrolet Silverado 1500

4.8L V8 Gas OHV,
5.3L V8 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

Chevrolet Silverado 1500



4.8L V8 Gas OHV,
5.3L V8 Gas OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle

2006

 

2005

 

2004

 

2006

 

2005

 

2004

 
Chevrolet Silverado 1500

5.3L V8 FULL HYBRID EV-Gas FHEV OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

Chevrolet Silverado 1500



5.3L V8 FULL HYBRID EV-Gas FHEV OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle

2005

 

2004

 

2005

 

2004

 
Chevrolet Silverado 1500

6.0L V8 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L65-E
 

Chevrolet Silverado 1500



6.0L V8 Gas OHV

4th W/RING
Mfr Code: 4L65-E

1 Per Vehicle

2004

 

2004

 
Chevrolet Silverado 1500

4.3L V6 Gas OHV,
4.8L V8 Gas OHV,
5.3L V8 Flex OHV,
5.3L V8 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L65-E
 

Chevrolet Silverado 1500



4.3L V6 Gas OHV,
4.8L V8 Gas OHV,
5.3L V8 Flex OHV,
5.3L V8 Gas OHV

4th W/RING
Mfr Code: 4L65-E

1 Per Vehicle

2004

 

2003

 

2004

 

2003

 
Chevrolet SSR

5.3L V8 Gas OHV
1
 
4th
 
W/RING
 

Chevrolet SSR



5.3L V8 Gas OHV

4th W/RING

1 Per Vehicle

2005

 

2004

 

2003

 

2002

 

2005

 

2004

 

2003

 

2002

 
Chevrolet Suburban 1500

5.3L V8 Flex OHV
1
 
4th
 
W/RING
 

Chevrolet Suburban 1500



5.3L V8 Flex OHV

4th W/RING

1 Per Vehicle

2005

 

2004

 

2003

 

2002

 

2001

 

2000

 

2005

 

2004

 

2003

 

2002

 

2001

 

2000

 
Chevrolet Suburban 1500

5.3L V8 Gas OHV
1
 
4th
 
W/RING
 

Chevrolet Suburban 1500



5.3L V8 Gas OHV

4th W/RING

1 Per Vehicle

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 
Chevrolet Tahoe

5.3L V8 Flex OHV
1
 
4th
 
W/RING
 

Chevrolet Tahoe



5.3L V8 Flex OHV

4th W/RING

1 Per Vehicle

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2000

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2000

 
Chevrolet Tahoe

4.8L V8 Gas OHV,
5.3L V8 Gas OHV
1
 
4th
 
W/RING
 

Chevrolet Tahoe



4.8L V8 Gas OHV,
5.3L V8 Gas OHV

4th W/RING

1 Per Vehicle

2005

 

2004

 

2003

 

2002

 

2005

 

2004

 

2003

 

2002

 
Chevrolet Trailblazer

4.2L L6 Gas DOHC
1
 
4th
 
W/RING
 

Chevrolet Trailblazer



4.2L L6 Gas DOHC

4th W/RING

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2006

 

2005

 

2004

 

2003

 
Chevrolet Trailblazer EXT

5.3L V8 Gas OHV
1
 
4th
 
W/RING
 

Chevrolet Trailblazer EXT



5.3L V8 Gas OHV

4th W/RING

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2002

 

2006

 

2005

 

2004

 

2003

 

2002

 
Chevrolet Trailblazer EXT

4.2L L6 Gas DOHC
1
 
4th
 
W/RING
 

Chevrolet Trailblazer EXT



4.2L L6 Gas DOHC

4th W/RING

1 Per Vehicle

2006

 

2005

 

2004

 

2006

 

2005

 

2004

 
GMC Canyon

2.8L L4 Gas DOHC,
3.5L L5 Gas DOHC
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

GMC Canyon



2.8L L4 Gas DOHC,
3.5L L5 Gas DOHC

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 
GMC Envoy

4.2L L6 Gas DOHC
1
 
4th
 
W/RING
 

GMC Envoy



4.2L L6 Gas DOHC

4th W/RING

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2006

 

2005

 

2004

 

2003

 
GMC Envoy XL

5.3L V8 Gas OHV
1
 
4th
 
W/RING
 

GMC Envoy XL



5.3L V8 Gas OHV

4th W/RING

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2002

 

2006

 

2005

 

2004

 

2003

 

2002

 
GMC Envoy XL

4.2L L6 Gas DOHC
1
 
4th
 
W/RING
 

GMC Envoy XL



4.2L L6 Gas DOHC

4th W/RING

1 Per Vehicle

2005

 

2004

 

2005

 

2004

 
GMC Envoy XUV

4.2L L6 Gas DOHC,
5.3L V8 Gas OHV
1
 
4th
 
W/RING
 

GMC Envoy XUV



4.2L L6 Gas DOHC,
5.3L V8 Gas OHV

4th W/RING

1 Per Vehicle
GMC Safari

4.3L V6 Gas OHV
1
 
4th
 
W/RING
 

GMC Safari



4.3L V6 Gas OHV

4th W/RING

1 Per Vehicle
GMC Savana 1500

4.3L V6 Gas OHV
1
 
4th
 
W/RING
 

GMC Savana 1500



4.3L V6 Gas OHV

4th W/RING

1 Per Vehicle

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 
GMC Savana 1500

5.3L V8 Gas OHV
1
 
4th
 
W/RING
 

GMC Savana 1500



5.3L V8 Gas OHV

4th W/RING

1 Per Vehicle

2005

 

2004

 

2003

 

2005

 

2004

 

2003

 
GMC Savana 2500

4.8L V8 Gas OHV,
5.3L V8 Gas OHV,
6.0L V8 CNG OHV,
6.0L V8 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

GMC Savana 2500



4.8L V8 Gas OHV,
5.3L V8 Gas OHV,
6.0L V8 CNG OHV,
6.0L V8 Gas OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle

2005

 

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 

2005

 

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 
GMC Savana 2500

4.3L V6 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

GMC Savana 2500



4.3L V6 Gas OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle
GMC Sierra 1500

5.3L V8 Flex OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

GMC Sierra 1500



5.3L V8 Flex OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle
GMC Sierra 1500

4.3L V6 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

GMC Sierra 1500



4.3L V6 Gas OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 
GMC Sierra 1500

6.0L V8 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

GMC Sierra 1500



6.0L V8 Gas OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle
GMC Sierra 1500

4.8L V8 Gas OHV,
5.3L V8 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

GMC Sierra 1500



4.8L V8 Gas OHV,
5.3L V8 Gas OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle

2006

 

2005

 

2004

 

2006

 

2005

 

2004

 
GMC Sierra 1500

6.0L V8 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L65-E
 

GMC Sierra 1500



6.0L V8 Gas OHV

4th W/RING
Mfr Code: 4L65-E

1 Per Vehicle

2004

 

2004

 
GMC Sonoma

4.3L V6 Gas OHV
1
 
4th
 
W/RING
 

GMC Sonoma



4.3L V6 Gas OHV

4th W/RING

1 Per Vehicle

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 
GMC Yukon

5.3L V8 Flex OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

GMC Yukon



5.3L V8 Flex OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 
GMC Yukon

4.8L V8 Gas OHV,
5.3L V8 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

GMC Yukon



4.8L V8 Gas OHV,
5.3L V8 Gas OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle

2005

 

2004

 

2003

 

2002

 

2001

 

2005

 

2004

 

2003

 

2002

 

2001

 
GMC Yukon

6.0L V8 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

GMC Yukon



6.0L V8 Gas OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle

2004

 

2004

 
GMC Yukon

6.0L V8 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L65-E
 

GMC Yukon



6.0L V8 Gas OHV

4th W/RING
Mfr Code: 4L65-E

1 Per Vehicle

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 
GMC Yukon XL 1500

5.3L V8 Flex OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

GMC Yukon XL 1500



5.3L V8 Flex OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 
GMC Yukon XL 1500

5.3L V8 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L60-E
 

GMC Yukon XL 1500



5.3L V8 Gas OHV

4th W/RING
Mfr Code: 4L60-E

1 Per Vehicle

2006

 

2005

 

2004

 

2006

 

2005

 

2004

 
GMC Yukon XL 1500

6.0L V8 Gas OHV
1
 
4th
 
W/RING
Mfr Code: 4L65-E
 

GMC Yukon XL 1500



6.0L V8 Gas OHV

4th W/RING
Mfr Code: 4L65-E

1 Per Vehicle

2007

 

2006

 

2005

 

2004

 

2003

 

2007

 

2006

 

2005

 

2004

 

2003

 
Hummer H2

6.0L V8 Gas OHV
1
 
4th
 
W/RING
 

Hummer H2



6.0L V8 Gas OHV

4th W/RING

1 Per Vehicle

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 
Isuzu Ascender

4.2L L6 Gas DOHC
1
 
4th
 
W/RING
 

Isuzu Ascender



4.2L L6 Gas DOHC

4th W/RING

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2006

 

2005

 

2004

 

2003

 
Isuzu Ascender

5.3L V8 Gas OHV
1
 
4th
 
W/RING
 

Isuzu Ascender



5.3L V8 Gas OHV

4th W/RING

1 Per Vehicle

2004

 

2003

 

2002

 

2004

 

2003

 

2002

 
Oldsmobile Bravada

4.2L L6 Gas DOHC
1
 
4th
 
W/RING
 

Oldsmobile Bravada



4.2L L6 Gas DOHC

4th W/RING

1 Per Vehicle

2004

 

2004

 
Pontiac GTO

5.7L V8 Gas OHV
1
 
4th
 
W/RING
USA ADDITIONAL EQUIPMENT
Mfr Code: 4L60-E
 

Pontiac GTO



5.7L V8 Gas OHV

4th W/RING
USA ADDITIONAL EQUIPMENT
Mfr Code: 4L60-E

1 Per Vehicle

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