Caterpillar® 312B – Excavators

Serial number ranges

Excavator S/N: 8JR1-UP,9GR1-UP,2NS1-UP,3FS1-UP,9FS1-UP,2KW1-UP 6SW1-UP,9NW1-UP

Application (Cylinder)	Caterpillar® Part No.	Description	Bore	Rod	Note / Serial No.
Boom	119-5435	Seal Kit	110 mm	75 mm
	114-0750	Bushing			S/N: 8JR1-687,9GR1-357,2NS1-145,3FS1-213,9FS,2KW,6SW S/N: 9NW Use with 119-5425 Cylinder
	169-7837	Seal Kit	110 mm	75 mm
	114-0750	Bushing			S/N: 8JR688-UP,9GR358-UP,2NS146-UP,3FS214-UP,9FS,2KW S/N: 6SW,9NW Use with 143-8156 or 185-9086 Cylinder
Bucket	169-7830	Seal Kit	100 mm	65 mm
	114-0754	Bushing			S/N: 8JR1-689,9GR1-354,2NS1-148,3FS1-211,9FS,2KW,6SW S/N: 9NW Use with 119-5447 Cylinder
	169-7839	Seal Kit	100 mm	65 mm
	114-0754	Bushing			S/N: 8JR690-UP,9GR355-UP,2NS149-UP,3FS212-UP,9FS,2KW S/N: 6SW,9NW Use with 143-8158 Cylinder
Stick	119-5446	Seal Kit	120 mm	80 mm
	114-0755	Bushing			S/N: 8JR1-687,9GR1-357,2NS1-145,3FS1-213,9FS,2KW,6SW S/N: 9NW Use with 119-5436 Cylinder
	169-7838	Seal Kit	120 mm	80 mm
	114-0755	Bushing			S/N: 8JR688-UP,9GR358-UP,2NS146-UP,3FS214-UP,9FS,2KW S/N: 6SW,9NW Use with 143-8157 or 185-9056 Cylinder
Blade	169-7835	Seal Kit	120 mm	80 mm
	114-0755	Bushing			S/N: 2NS,3FS,2KW,9NW

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.