Kobelco Excavator SK300 Series IV Pins, Links

Pins, bushings, bucket links, H-links, and seals for the Kobelco SK300 Series IV excavator, covering the full range of linkage and attachment connection hardware for this large crawler excavator platform. Parts include left-hand and right-hand bucket links, link-to-dipper pins, link-to-cylinder pins, bucket-to-dipper arm pins, hydraulic linkage seals, and O-rings.

Fits Models At A Glance

• SK300 Series: SK300 Series IV

Key Notes

• Bucket Links: Left-hand (with bolt holes) and right-hand versions available separately
• H-Link: Direct replacement bucket H-link for Series IV attachment systems
• Pins: Includes link-to-dipper, link-to-cylinder, and bucket-to-dipper arm connection pins
• Seals & O-Rings: Hydraulic linkage seals and O-rings to restore leak-free operation
• Tooling: Universal bushing driver tool available for removal and installation service work

Why Choose Broken Tractor

• ✅ Kobelco SK300 IV linkage parts ready to ship fast
• ✅ Left and right-hand links sold individually
• ✅ Knowledgeable team for part number verification support

Frequently Asked Questions

What pins are used in the bucket linkage on a Kobelco SK300 Series IV excavator?

Broken Tractor carries three linkage pins for the Kobelco SK300 Series IV: the link to dipper pin (SKU 2419P3748), the link to cylinder pin (SKU 2419P3749), and the bucket to dipper arm and H-link pin (SKU 2419P2180). Each pin is sold separately, so you can replace only the connection point that is worn. Match the part number on your old pin to choose the right one.

Are the left and right bucket links on a Kobelco SK300 Series IV the same part?

No, the left-hand and right-hand bucket links are different parts and are sold individually. The left-hand bucket link (SKU 2406P5385D1) has bolt holes, and the right-hand bucket link is SKU 2406P5385D2. Broken Tractor also offers the bucket H-link for the SK300 Series IV as SKU 2406N1686F1.

What seals and O-rings fit the Kobelco SK300 Series IV linkage?

Broken Tractor offers three hydraulic linkage seals for the Kobelco SK300 Series IV, SKUs 2445R138D7, 2445R138D8 and 2445R220D6, plus an O-ring, SKU 2445Z1003. Because the seals carry different part numbers, match the number from your machine or parts book before ordering. If you are not sure which seal you need, call (800) 909-7060 and the parts team can help verify it.

Is there a tool for removing and installing bushings on a Kobelco SK300 Series IV?

Yes, Broken Tractor offers a universal steel bushing driver for removing and installing bushings during service work. It is a universal tool rather than a model-specific part, so it can be used on the Kobelco SK300 Series IV linkage along with other equipment.

How do I make sure a pin or link fits my Kobelco SK300 Series IV?

Every pin, link, seal and O-ring Broken Tractor lists for the SK300 Series IV is listed for that model, and each has its own part number. The surest way to get the correct part is to match the part number stamped on or listed for your original part. You can also have the parts team confirm fitment before you order.