12638258 NEW GENUINE SET OF 16 Rocker Arm Bridge 2001-2023 Chevrolet Silverado DURAMAX 8 Cyl 6.6L Diesel

NEW Genuine GM Rocker Arm Bridge Set – Duramax 6.6L Diesel (2001–2023)

GM Part Number: 12638258
Quantity: SET OF 16 UNITS

Brand new genuine GM rocker arm bridge set, consisting of 16 individual rocker arm bridges. This is a complete set, supplying the correct quantity required to service one full 6.6L Duramax diesel engine.

Rocker arm bridges secure the rocker arms to the cylinder head and are critical for maintaining correct valvetrain alignment and operation.

What’s Included:

• 16 × GM Rocker Arm Bridges (12638258)

• Enough to service one complete engine

Compatibility:

• Chevrolet Silverado (2001–2023)
  • Engine: 6.6L Duramax Diesel
  • Models: 2500 / 3500
  • Body styles: Crew Cab, Double Cab, Extended Cab, Regular Cab, Chassis Cab

• GMC Sierra (2001–2023)
  • Engine: 6.6L Duramax Diesel
  • Models: 2500 / 3500
  • Body styles: Crew Cab, Double Cab, Extended Cab, Regular Cab, Chassis Cab

• Chevrolet Express (2006–2016)
  • Engine: 6.6L Duramax Diesel

• GMC Savana (2006–2016)
  • Engine: 6.6L Duramax Diesel

• Cadillac Escalade (2002–2005)
  • 3/4-ton variants

• Chevrolet Suburban (2001–2005)
  • 2500 / 3500 & 3/4-ton variants

• GMC Yukon (2001–2005)
  • 3/4-ton & XL 3/4-ton variants

Notes:

• SET OF 16 rocker arm bridges

• For 6.6L Duramax diesel engines only

• Genuine GM parts — not aftermarket or refurbished

• Professional installation recommended

This is a genuine GM OEM valvetrain component set — brand new.
Please confirm engine type (6.6L Duramax) and quantity required before purchase.