Buyers who run a mixed fleet order for the 20 tonne machine first and think about the 25 tonne machine second. That habit is why the SK250-8 and SK260LC-8 produce more wrong-part enquiries at our desk than their numbers suggest. The machine looks like a scaled-up SK200-8, and most consumables genuinely are similar — but the systems carrying the highest unit price are the ones that change. This is the conversation the technical team at Guangzhou Shenyue Machinery Technology Co., Ltd. has with mid-class buyers before a quote is issued.
What actually changes up a class
Some systems step up and some do not, and you cannot tell which from the brochure. Treat the nameplate as the only authority and check each family separately.
| System family | 20 tonne class (SK200-8 / SK210-8) | Mid class (SK250-8 / SK260LC-8) |
|---|---|---|
| Swing motor | M5X130 class, quoted as YN15V00077F1 / YN15V00055F1 / YN15V00035F1 | Sits between classes — confirm from the nameplate |
| Travel motor | Nabtesco GM38VB, YN15V00037F1 / F2 / F3 | Heavier class motor; read the assembly number off the machine |
| Swing reduction | YN32W00025F1 / YN32W00022F2 / YN32W00019F1 | Same family logic, different ratio and housing |
| Undercarriage | Standard 600 mm class shoes | Wider shoes, heavier links, faster pin and bushing wear |
| Working device | Standard boom and arm pins | Larger pin diameters — pins and bushings are not shared |
The swing motor is the expensive trap
On the 20 tonne class the swing motor is the M5X130 family. From the SK330-8 class upward it is the M5X180 family, quoted under assembly number LC15V00022F1. A 22 to 26 tonne machine sits between those two reference points, so the only reliable identification is the swing unit's own plate, not the excavator decal. A swing motor quoted from the model name alone has a real chance of arriving with the wrong mounting and the wrong rotary group.
What wears faster on a mid-class machine
- Bucket and arm pins and bushings. A stocked example from our shelf is the arm bushing quoted as LC12B02199P1 — a wear item measured in hundreds of hours on hard ground, and far cheaper than machining a worn boss.
- Idler and roller assemblies. A stocked example is the idler shaft VA32F2303402. A seized idler is a track-off event, not a gradual degradation, so inspect at every track tension check.
- Track shoes and bolts. On rock or demolition duty, mid-class machines lose shoes to bolt fatigue well before the links wear out.
Ordering without a second attempt
- Read the component plate first. Travel motor, swing motor and pump all carry their own identification, and that number beats the model decal every time.
- Keep the generation straight. An SK250-8 and an SK260LC-8 may share a class but they are not the same build, and "-8" parts do not migrate to a "-10" machine.
- State the grade you want. Genuine through original supply channels, OEM-quality replacement and aftermarket are three products at three prices — ask for all three on separate lines so the commercial choice stays with you rather than with the supplier.
Guangzhou Shenyue Machinery Technology Co., Ltd. has specialised in Kobelco parts since 2007, with 4 warehouses over 1000 m² in Guangzhou, 3,000+ part types on the shelf and 100,000+ part numbers available to order through original supply channels. Shenyue is an independent supplier of excavator parts and is not an authorized dealer or distributor of Kobelco Construction Machinery Co., Ltd.; for Kobelco, Hino, Isuzu, Yanmar, Cummins, Kawasaki, Nabtesco, KYB and KPM we supply genuine parts ordered through original supply channels alongside quality replacement alternatives, at prices close to agent level. The brands we hold formal authorization for — Mitsubishi, Garrett, TONGMYUNG, Marusan and NIKURA — are named on every quotation. Browse the class on the SK250 model page and the SK260LC model page, look up any reference in the part number search, and read the generation logic in our SK200-8 versus SK210-8 shared parts guide. Manufacturer machine data is published by Kobelco.
Frequently Asked Questions
What travel motor does a Kobelco SK250-8 use?
The SK250-8 sits in the 22 to 26 tonne class and uses a heavier travel motor than the SK200-8 and SK210-8, which normally carry the Nabtesco GM38VB quoted as YN15V00037F1 / F2 / F3. Because 22 to 26 tonne machines sit between the 20 tonne and the 33 tonne reference points, Guangzhou Shenyue Machinery Technology Co., Ltd. always identifies the travel motor from the motor's own plate or the machine nameplate rather than from the model name.
Can I use a GM38VC travel motor on an SK250-8?
No. GM38VB (SK200-8 / SK210-8 class, YN15V00037F1 / F2 / F3) and GM38VC (SK200-10 class, YN15V00083F1) are two generations, not two versions of one part, and they are not interchangeable. The same generation discipline applies to every travel motor quoted for a mid-class machine: read the assembly number off the machine before ordering.
Which Kobelco parts wear fastest on a 25 tonne machine?
The fastest-moving items are bucket and arm pins and bushings, idler and roller assemblies, and track shoes and bolts. Stocked examples held by Guangzhou Shenyue Machinery Technology Co., Ltd. include the arm bushing LC12B02199P1 and the idler shaft VA32F2303402 — both are wear items far cheaper than the machining that follows a worn boss or a seized idler.
What should I send to get an accurate SK250-8 parts quote?
Send four things in one message: a photograph of the excavator data plate, a photograph of the component's own plate or stamped number, the machine serial, and a photograph with a tape measure in frame for any wear part. Guangzhou Shenyue Machinery Technology Co., Ltd. can then quote the assembly actually fitted, with genuine, OEM-quality and aftermarket options on separate lines.