Cat 318C, 320C, 321C Excavator Pins Bushings Links

Each number on the image is a "Ref #" that can be matched on the table below.

Cat 318C, 320C, 321C Excavator Pins Bushings Links parts list
REF #	Image	Fits Model	Description	Price	Product Details
	See Details	320B, 320C, 320N, 322B, 322B L, 322C, 322C FM, 325, 325B L, 325C, 330B L, 325B, 325B LN	Bucket Link Assembly	5I3425	$644.00	View Info
	See Details	318B, 320B, 322, 325, 325 L, 325 LN, 325B L, 330B L, 345B L, 325B, 325B LN	Bucket Link & Bearing Assembly	4I4902	From $1,771.00	View Info
	See Details	313B, 320C, 322B L, 322C, 322C FM, 325C, 330B L	Bucket Link	1949829	$64.00	View Info
	See Details	320 L, 320B, 320C, 320N, 325, 325 LN, 325B L, 325C, 325C FM, 330, 330 FM L, 330C L, 345B II, 350, 350 L, 5080	Bucket Link RH	7Y2392	$253.00	View Info
	See Details	311, 311B, 312, 312B, 313B, 320B, 320C, 320N, 322B L, 325, 325B L, E110B, E120B, E200B, E240C, EL240B, 325B, 325B LN	Bucket Link Assembly	0990722	$103.00	View Info
	See Details	318C, 318CL, 318C LN, 320C, 320CL, 321C LCR, 322, 322B, 322BL, 322CL, 325B, 325L, 325BL, 325C, 325CL	Shim & Seal Kit	PV7018	$452.00	View Info
	See Details	318C, 318CL, 318CLN, 320C, 320CL, 321C LCR, 319DL, 319DLN, 320D, 320DL, 320EL, 321D LCR, 325B, 325BL, 325L, 325C, 325CL	H-Link bushing	240-2913	$97.00	View Info
5	See Details	318C, 318CL, 318CLN, 320C, 320CL, 321C LCR	H-Link	174-8255	From $2,111.00	View Info
	See Details	315DL, 316EL, 316F, 316FL, 317, 317 GC, 318 GC, 318D, 318D2, 318DL, 318D2L, 318EL, 318F, 318FL	Bucket Linkage Pin	458-0545	$299.00	View Info
	See Details	Universal – Fits dozers, excavators, loaders, and backhoes	Bushing Driver Removal Tool	BushingDriver	From $44.00	View Info

Pins, bushings, links, and seal kits for Caterpillar 318C, 320C, and 321C series excavators, covering bucket and linkage connection components.

Fits Models At A Glance

318C Series: 318C, 318CL, 318C LN
320C Series: 320C, 320CL
321C Series: 321C LCR

Key Notes

Application: Pins, bushings, links, and seal kits for Cat 318C, 320C, and 321C series excavator working equipment
Coverage: Includes H-links, shim and seal kits, and bushing driver tool for bucket and linkage connection points
Function: Maintains bucket and linkage connection integrity across all major pivot points on Cat 318C, 320C, and 321C excavator working equipment

Why Choose Broken Tractor

✅ H-links and seal kits stocked for 318C, 320C, and 321C series
✅ OEM-equivalent fit for Cat mid-size excavator platforms
✅ Hard-to-find Cat linkage components available

Frequently Asked Questions

What H-link fits a Cat 320C excavator?

Broken Tractor carries an H-Link, SKU 174-8255, that fits the Cat 318C, 318CL, 318CLN, 320C, 320CL and 321C LCR excavators. We also offer a matching H-Link Bushing, SKU 240-2913, which fits the same 318C, 320C and 321C LCR models. Match the part number on your old H-link or bushing before ordering.

Which bucket link fits a Cat 320C excavator?

We carry several Cat bucket links that list the 320C in their fitment: the bucket link assembly 0990722, the right hand bucket link 7Y2392, the bucket link 1949829 and the bucket link assembly 5I3425. The correct link depends on your machine's serial number and setup, so match the part number on your current link. If you are unsure which one you need, call our parts team at (800) 909-7060.

What shim and seal kit fits a Cat 318C, 320C or 321C excavator?

The Shim and Seal Kit, SKU PV7018, fits the Cat 318C, 318CL, 318C LN, 320C, 320CL and 321C LCR excavators. It also fits Cat 322, 322B, 322BL, 322CL and 325 series excavators. Shims and seals help keep bucket and linkage pivot points tight and sealed.

Does the 458-0545 bucket linkage pin fit a Cat 318C?

No, the 458-0545 bucket linkage pin is not listed for the Cat 318C. It fits later Cat excavators such as the 318D, 318D2, 318DL, 318D2L, 318EL, 318F and 318FL, along with the 315DL, 316EL and 317. For a 318C, match the part number on your existing pin or confirm fitment with our parts team before ordering.

How do I remove and install bushings on a Cat 320C excavator?

Broken Tractor offers a steel Bushing Driver Removal and Installation Tool, SKU BushingDriver, for pressing bushings out and seating new ones. It is a universal tool, so it can be used on Cat 318C, 320C and 321C excavators. Pairing it with a new H-link bushing such as SKU 240-2913 lets you replace worn bushings at the linkage pivot points.