Caterpillar® 311B – Excavators

Serial number ranges

Excavator S/N: 8GR1-UP,2LS1-UP

Application (Cylinder)	Caterpillar® Part No.	Description	Bore	Rod	Note / Serial No.
Boom	121-1405	Seal Kit	100 mm	70 mm
	114-0753	Bushing			S/N: 2LS1-147,8GR1-345
	169-7836	Seal Kit	100 mm	70 mm
	114-0753	Bushing			S/N: 2LS148-UP,8GR346-UP
Bucket	169-7830	Seal Kit	100 mm	65 mm
	114-0754	Bushing			S/N: 2LS1-147,8GR1-345
	169-7839	Seal Kit	100 mm	65 mm
	114-0754	Bushing			S/N: 2LS148-UP,8GR346-UP
Stick	119-5435	Seal Kit	110 mm	75 mm
	114-0750	Bushing			S/N: 2LS1-147,8GR1-345
	169-7837	Seal Kit	110 mm	75 mm
	114-0750	Bushing			S/N: 2LS148-UP,8GR346-UP
Blade	169-7835	Seal Kit	120 mm	80 mm
	114-0755	Bushing			S/N: 2LS

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.