Engine Oil Filler Cap 3W8406 for Caterpillar Equipment

3W8406 is an engine oil filler cap for Caterpillar equipment. It is used on Caterpillar engines and Caterpillar track-type loaders, including the 3116, 3126B, C6.6, 963B, 963C and 963D models. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified as an engine oil filler cap and is intended for installation in the oil filler opening of the specified Caterpillar equipment. The supplied dimensional data includes the cap outer diameter, hole size, height and overall package dimensions. The listed weight is provided in pounds.

Fitment

• Caterpillar engine equipment
• Caterpillar track-type loader equipment
• Caterpillar 3116 engine
• Caterpillar 3126B engine
• Caterpillar C6.6 engine
• Caterpillar 963B track-type loader
• Caterpillar 963C track-type loader
• Caterpillar 963D track-type loader

The fitment information identifies both engine applications and track-type loader applications. The listed machine models are Caterpillar 963B, 963C and 963D, while the listed engine models are Caterpillar 3116, 3126B and C6.6. Compatibility should be confirmed against the equipment model and the part number marked in the service documentation before installation.

Cross-reference numbers

3W8406 and 3W-8406 are two written formats of the same listed part number. The number is also shown in the product identification as 3W8406 Engine Oil Filler Cap.

Specifications

The dimensional values are stated in the units provided for the part: inches for the outer diameter, hole size and height, and centimetres for length, width and depth. The hole-size specification is listed as 0.54 in with three holes. No additional components are specified as included with the cap.