| Machine | Sumitomo Hitachi SC400 / SC400-2 Crawler Crane |
|---|---|
| Part Type | Crane Track Shoes / Crawler Track Pads |
| OEM Reference | CAA1819 |
| Brand | SQ (ShunQi) |
| Machine Type | Crawler Cranes |
| Shoe Width | 760 mm |
| Shoes Per Side | 46 pcs. per side frame (92 pcs. total) |
| Product Group | Crawler Parts |
| Warranty | 1-Year Free Replacement Warranty |
| WhatsApp — Get a Quote Typically replies within 2 hours · Send your machine serial number or OEM reference for fastest response |
Built to OEM reference CAA1819, these replacement track shoes for the Sumitomo SC400 crawler crane are heat-treated multiple-hinged shoes — same 760 mm shoe width, same bolt pattern, direct fit. A full belt runs 46 shoes per side frame, 92 plates total. When grouser bars wear below 10 mm or bolt hole cracks appear, the link pins and sprocket teeth take the load next — replacing the shoes at that point costs less than waiting.
Each set is heat-treated through the full section. Every order carries a 1-year free replacement warranty — quality failure under normal use means a new shoe ships out, not a repair kit. SUMITOMO crawler crane track shoes for the SC400 and SC400-2 are available from specialized undercarriage parts manufacturers with documented supply history for this model.
Send us your serial number before ordering a full set — we'll confirm shoe count and pitch first.

Shoe Count 92 pcs 46 per side · full belt set | Shoe Width 760 mm Multiple-hinged heat-treated shoe | OEM Ref. CAA1819 Direct fit — SC400 / SC400-2 | Warranty 1 Year Free replacement — no repair kits |
Understanding the full undercarriage layout of the SC400-2 helps when ordering a complete set of replacement parts. Here is the factory specification for each chassis component:
| Component | Specification |
|---|---|
| Track Shoes | Heat treated, multiple-hinged shoes. 46 pcs. per side frame (92 total). Shoe width: 760 mm. |
| Bottom Rollers | Heat treated, mounted on bushings with floating seals. 8 pcs. per side frame (16 pcs. total). Requires no further lubrication. |
| Top Rollers | Heat treated, mounted on bushings with floating seals. 2 pcs. per side frame. Requires no further lubrication. |
| Drive Sprockets | Cast steel, heat treated. 1 per side frame. Bolt-coupled to a planetary reduction gear unit outer case as an integral part of the shoe-in type traction motor. Sealed between rotating and non-rotating parts of the motor with floating seal. |
| Idlers | Cast steel, heat treated. 1 per side frame. Mounted on two bronze bushings with floating seals. |
| Track Tension Adjuster | Adjusted by hydraulic cylinders at the idler blocks. Tension is automatically released whenever an abnormal load occurs on the tracks. |
Sales Team For any enquiries or questions, we respond as quickly as possible. Most inquiries get a reply within 2 hours on WhatsApp. | Technical Team Engineers with 20+ years on crawler crane undercarriage — they know the SC400 wear patterns and can advise on full-set ordering before anything ships. | Quality Control Chemical composition, hardening and tempering, hardness depth — tested on every batch. Material certificates available on request. |
1-Year Free Replacement Warranty Every set of Sumitomo SC400 track shoes ships with a 1-year free replacement warranty. A shoe that cracks, fractures, or fails under normal working conditions within 12 months gets replaced — full shoe sent out, delivery confirmed. Send a photo of the failed part with your order reference to start the process. |
Track shoes ship on steel pallets — stacked flat, strapped down, loaded into the container as-is. Anti-rust treatment applied before packing. Full export documentation included as standard.
ShunQi (SQ) manufactures undercarriage parts — track shoes, bottom rollers, top rollers, idlers, and drive sprockets — for the full range of Sumitomo HSC crawler cranes. Models currently in production include:
| Capacity | Models |
|---|---|
| 30 Ton | SCX300 · SCX300-C |
| 40 Ton | SCX400 · SC400 · SC400-2 |
| 50 Ton | SCX500 |
| 70 Ton | SCX700 · SCX700-2 |
| 80 Ton | SCX800 · SCX800-2 |
| 90 Ton | SCX900 · SCX900-2 |
| 100 Ton | SCX1000 |
| 120 Ton | SCX1200 · SCX1200-2 |
| 150 Ton | SCX1500 · SCX1500-2 |
| 200 Ton | SCX2000 |
| 250 Ton | SCX2500 |
| 260 Ton | SCX2600 |
| 280 Ton | SCX2800-2 |
* Don't see your model? Send us your serial number — we'll check and come back to you.

Found your model? Get a price in minutes. WhatsApp Us — Get a Quote NowIndonesia · Malaysia · Thailand · Philippines · Typically replies within 2 hours |
What is the OEM part number for Sumitomo SC400 track shoes?CAA1819 covers both the SC400 and SC400-2. One thing worth checking before ordering: the SC400 and the larger SCX500 use the same 760 mm shoe width but different pitch dimensions. If you're working from an old parts list or a worn shoe, send us a photo and we'll confirm the pitch before anything gets processed. |
When should I replace the track shoes on a Sumitomo SC400?Go by condition rather than hours. Three practical triggers: grouser bar worn below 10 mm, cracking at the bolt holes, or the shoe plate warped when laid flat on a surface. Past those points, the link pins and sprocket teeth start taking damage that costs more to fix than the shoes themselves. |
Do you supply other Sumitomo HSC crawler crane undercarriage parts?Yes — bottom rollers (8 per side, 16 total), top rollers (2 per side), drive sprockets, and idlers for the SC400-2. All heat treated with floating seals, no further lubrication required. Coverage extends across the full HSC range from SCX300 through SCX2800-2. |
How do I make a warranty claim if a track shoe fails?Send a WhatsApp message with a photo of the failed shoe and your order reference. We review it the same day. Confirmed quality failure under normal working conditions — replacement shoe ships within 5–7 business days. The 12-month warranty window starts from the delivery date on your shipping document. |
| Trademark notice: Sumitomo, SC400, SC400-2, SCX300, SCX400, SCX500, SCX700, SCX800, SCX900, SCX1000, SCX1200, SCX1500, SCX2000, SCX2500, SCX2600, SCX2800 and associated model names are cited solely to identify fitment compatibility. Parts supplied by PartsCrane / Quanzhou Shunqi Construction Machinery Parts Co., Ltd., Quanzhou, Fujian, China. Not manufactured by or affiliated with Sumitomo Heavy Industries, Ltd. |