7K1840 Washer for Caterpillar Equipment

The 7K1840 is a steel washer used with Caterpillar equipment, including Caterpillar 3306 engines and Caterpillar 966C wheel-type loaders. It is listed in the C-Series Head Bolts parts category and is used as a fastening washer in the related engine or machine assembly.

This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts). The equipment brand identified for fitment is Caterpillar; the washer is not manufactured by Caterpillar.

The part is identified by SKU 7K1840 and by the Caterpillar reference number 7K1840. The available application information associates this washer with Caterpillar engine-machine equipment and Caterpillar wheel-type loader equipment.

Fitment

• Caterpillar 3306 engine
• Caterpillar 966C wheel-type loader
• Caterpillar engine-machine equipment associated with the 3306 application
• Caterpillar wheel-type loader equipment associated with the 966C application

Fitment should be checked against the machine model, engine arrangement, and the part number 7K1840 before installation. The supplied application data identifies the 3306 and 966C models; no broader Caterpillar model list is included.

Cross-reference numbers

The available cross-reference information contains one number only: 7K1840. It is used as the Caterpillar reference number and as the interchange identification for this washer.

Specifications

The listed dimensions are length 8.89 cm, width 15.24 cm, and depth 1.27 cm. The stated weight is 0.1 lb. No additional information is provided for the inner diameter, outer diameter, hole size, coating, hardness, or bolt specification.

When identifying the required part, use the complete number 7K1840 rather than the part name alone. The part name describes a washer, while the reference number confirms the intended Caterpillar application for the 3306 and 966C equipment listed above.