Cometic Gasket

Cometic StreetPro Top End Gasket Kit GM Duramax LLY/LBZ .053in MLX 4.100in Bore

SKU: cgsPRO3009T-4100-053 UPC: 191070483296
Backordered – call for lead time

⚠ Call for Availability

Expected ship time: usually within 24–48 hours; some vendor items may take longer.

Call: (503) 235-1947 | Email Us: info@dfispdx.com

$721.23

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Verified Fitment & Application Support

This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.

Got Questions? Feel free to email us or call us at (503) 235-1947

One box for a top end job on the GM 6.6L Duramax LLY and LBZ: Cometic's StreetPro kit.

Key Features

  • Includes a .053in MLX cylinder head gasket
  • 4.100in bore
  • StreetPro top end and bottom end kits are sold separately; buy both for a complete engine rebuild
  • Kit materials include MLS, AFM and aramid fiber gaskets

Fitment

  • GM 6.6L Duramax LLY and LBZ

Product Details

  • Brand: Cometic
  • Manufacturer Part Number: PRO3009T-4100-053

Orders typically ship within 24–48 hours of being received, but because of vendor shipping times some orders may take longer. We ship within the United States only (48 contiguous states plus DC).

Shipping Height: 2.2

Shipping Length: 23.3

Shipping Width: 13.9
California Proposition 65
WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer and/or reproductive harm. For more information, visit www.P65Warnings.ca.gov.