Washer 3H0449 for Caterpillar Equipment

3H0449 is a flat steel washer used with Caterpillar equipment and listed for Caterpillar engines, generator sets, generators, excavators, and industrial engines. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The washer is catalogued under the C-Series Head Bolts category. The product data identifies the part by the 3H0449 number and specifies compatibility with a 1/2-inch bolt size. The listed dimensions are provided in both inches and centimetres where available.

Fitment

The washer is listed for the following Caterpillar equipment types and models:

• Caterpillar engines
• Caterpillar engine-machine applications
• Caterpillar engine-generator set applications
• Caterpillar generators
• Caterpillar excavators
• Caterpillar industrial engines
• Caterpillar 3304
• Caterpillar 3306
• Caterpillar 3304B
• Caterpillar 3306B
• Caterpillar SR4
• Caterpillar 330B L
• Caterpillar 330B LN

Fitment should be checked against the equipment model, engine or generator configuration, and the part number specified for the particular assembly. The listed application data includes both complete machine equipment and individual engine or generator applications; therefore, model identification is required before installation.

Cross-reference numbers

The following numbers identify the same washer in the available product data:

• 3H0449
• 3H-0449

3H0449 is the product SKU and the listed equipment part number format. 3H-0449 is the hyphenated part-number format used for the same number. These references should be compared with the number stamped or specified for the existing washer and with the equipment parts documentation.

Specifications

The dimensional values describe the washer as listed: an inner diameter of 0.531 inch, an outer diameter of 1.25 inches, and a thickness of 0.036 inch. The specified 1/2-inch bolt size corresponds to the listed application data; dimensional verification is recommended when the washer is being matched to an existing bolt and fastening assembly.