1L6583 Pre-Combustion Chamber Gasket

The 1L6583 is a pre-combustion chamber gasket for Caterpillar equipment and for the D342 engine used in industrial applications and ship equipment. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The gasket is listed for Caterpillar wheeled tractor-scraper models including the 621, 621B, 621R, 623, 623B, 627B, 631C, 631D, 633C, 633D, 637, 637D, 639D, 657, and 657B. The part is used at the pre-combustion chamber sealing point of the applicable engine configuration.

Fitment

• Caterpillar 621 wheeled tractor-scraper
• Caterpillar 621B wheeled tractor-scraper
• Caterpillar 621R wheeled tractor-scraper
• Caterpillar 623 wheeled tractor-scraper
• Caterpillar 623B wheeled tractor-scraper
• Caterpillar 627B wheeled tractor-scraper
• Caterpillar 631C wheeled tractor-scraper
• Caterpillar 631D wheeled tractor-scraper
• Caterpillar 633C wheeled tractor-scraper
• Caterpillar 633D wheeled tractor-scraper
• Caterpillar 637 wheeled tractor-scraper
• Caterpillar 637D wheeled tractor-scraper
• Caterpillar 639D wheeled tractor-scraper
• Caterpillar 657 wheeled tractor-scraper
• Caterpillar 657B wheeled tractor-scraper
• D342 engine used in industrial applications
• D342 engine used in ship equipment

Fitment should be checked against the machine model, engine configuration, and the part number removed from the equipment before installation. The listed machine series and engine application are the available application references for SKU 1L6583.

Cross-reference numbers

• 1L-6583
• 1L6583
• CA1L6583
• Caterpillar 1L6583 GASKET

The references above identify the same gasket number in different part-number formats or supplier catalogues. The SKU for this product is 1L6583.

Specifications

The dimensions and weight are catalogue values for the gasket. The listed dimensions are length, width, and depth respectively; they do not indicate the dimensions of the combustion chamber or the complete engine assembly.