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Caterpillar® 666, 666B – Wheel Tractor-Scrapers

Serial number ranges

Tractor S/N: 77F1-UP,64H1-UP,66K1-UP
Scraper S/N: 20G1-UP
S/N: 77F1-265
S/N: 77F266-492,64H1-175
S/N: 77F493-UP,64H176-UP,66K
S/N: 20G82-163
S/N: 20G82-163 Field replacement
S/N: 20G164-251

Application (Cylinder)	Caterpillar® Part No.	Description	Bore	Rod	Note / Serial No.
Traction	242-2556	Seal Kit	6.000"	2.500"
Apron	7X-2796	Seal Kit	9.250"	2.750"	S/N: 20G1-81
Apron (cont)	245-0602	Seal Kit	9.250"	3.250"	S/N: 20G252-UP
Bowl	245-0602	Seal Kit	9.250"	3.250"	S/N: 20G176-UP

For reference only. Send us your machine serial number before ordering and we will confirm the correct kit.

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Caterpillar®, Komatsu®, Volvo®, JCB® and other brand names are registered trademarks of their owners and are used only to indicate compatibility.