Caterpillar® 631E – Wheel Tractor-Scrapers

Serial number ranges

Tractor S/N: 1AB1-UP,1NB1-UP,3ND1-UP
Scraper S/N: 1BB1-UP,6PC1-UP,4LD1-UP

Application (Cylinder)	Caterpillar® Part No.	Description	Bore	Rod	Note / Serial No.
Steering	235-5802	Seal Kit	6.500"	2.750"	S/N: 1BB1-747,1BB749-752,6PC1-518,4LD1-250
	235-5804	Seal Kit	6.500"	2.750"	S/N: 1BB748-748,1BB753-UP,6PC,4LD251-UP
Servo	8T-4771	Seal Kit	1.500"	0.750"
Load	243-5797	Seal Kit	6.500"	2.500"	S/N: 1AB1-679,1NB1-595,3ND1-275
	243-5803	Seal Kit	6.500"	2.500"	S/N: 1AB680-1075,1NB596-685,3ND276-317
Load (cont)	9X-6024	Seal Kit	6.500"	2.500"	S/N: 1AB1076-1445,1NB686-871,3ND318-536
	9X-6024	Seal Kit	6.500"	2.500"	S/N: 1AB1446-1639,1NB872-1389 Use with 9T-6538 Head
	243-5803	Seal Kit	6.500"	2.500"	S/N: 1AB1446-1639,1NB872-1389 Use with 110-0311 Head
	243-5803	Seal Kit	6.500"	2.500"	S/N: 1AB1640-UP,1NB1390-UP,3ND537-UP
Apron	244-2069	Seal Kit	8.250"	3.000"
Bowl	243-5820	Seal Kit	7.250"	2.750"	S/N: 1BB1-850,6PC1-518,4LD1-250
	243-5814	Seal Kit	7.250"	2.750"	S/N: 1BB851-UP,6PC,4LD251-UP
Ejector	189-1778	Seal Kit	8.250"	6.000"
	246-3442	Seal Kit	8.250"	6.000"	S/N: 1BB1174-UP,6PC,4LD270-UP

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

Please send any comments about our website to the address above.

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