GET, 2SN hose and sprocket fail for different reasons
A rusty piece on the floor is not one 'construction part'. A 322 tooth, a 16 mm 2SN hose and a PC210-8 sprocket fail for different reasons and are specified from different stamps. This page compares SRC-CS-T322, SRC-CS-H16 and SRC-CS-SP210 so purchasing does not order hose from a tooth photograph or a sprocket 'for now' while the chain is hooked.
GET: SRC-CS-T322
322-family pin-on bucket tooth, 22 mm pin, abrasive sand and dirt — not demolition impact. Tooth and adapter families are not mixed. A pin that almost enters will walk; a lookalike from another family beats the adapter to death. If the adapter is mushroomed, the repair is adapter plus teeth. Fitment on file includes Komatsu PC200-8 and PC210-8 in this pin-on family. Photograph the adapter nose and copy every letter in the suffix (OEM-T322, 205-70-19570).
Hose: SRC-CS-H16
Two-wire 2SN, 16 mm inside diameter. A one-wire hose in a two-wire circuit balloons. Length is the last number: copy working pressure, temperature, bend radius, dash size and fitting thread from the old layline and ferrule. Do not add an extra 90 to 'make it fit'. Clean the leak, run hot, and watch where oil leaves — a coupler face is not 200 mm of extra hose. Fitment examples include PC200/210, 320 GC, ZX210-5 and JCB 3CX when the old layline is 16 mm 2SN. Unique runs still need the ferrule stamp.
Undercarriage: SRC-CS-SP210
Standard-gauge sprocket listed for Komatsu PC210-8. Hooked teeth eat a new chain the first week. One sprocket 'for now' is how the new chain dies. Compare left and right; machines that always turn one way eat one side. Tension spec after fitment belongs on the job card. This is not a PC200-8 sprocket by default and it is not a tooth or a hose. OEM marks: OEM-SP-PC210, 20Y-27-11110.
Tooth versus hose versus sprocket
- Corner of the bucket, pin, adapter nose: GET (T322) — measure pin and family, not the machine colour
- Oil on a boom or under a floor: hose (H16) only after layline, dash and fittings are copied
- Track slap, hooked teeth, one-sided wear: sprocket (SP210) as a set with chain and rollers, not a single loud wheel
- A photo of 'the broken bit': still three stamps, three quotes
Duty still wins
Abrasive dirt versus impact demolition changes the tooth, not the hose rating. 2SN versus 4SP is the hose, not the sprocket gauge. Undercarriage wear is a set: sprocket, chain, rollers, idlers. Quote both sides or explain why one is still inside the limit. SEROC quotes B2B from the stamp or these SKUs. Listed SKUs are available to quote.
These three jobs never share a crate
A tooth, a hose and a sprocket can all come off the same excavator in one week. They still do not belong on one unspecified 'construction parts' line. GET is pin family and duty. Hose is layline, dash, fittings and working pressure. Undercarriage is gauge, pitch and a wear set. Mixing them because the machine is a PC210-8 is how a workshop receives a sprocket when the leak was a ferrule, or a 16 mm hose when the adapter was already mushroomed.
Photograph the stamp, not the rust. For T322, the adapter nose and the pin diameter matter more than the bucket colour. For H16, the layline and both fittings matter more than the boom it was tied to. For SP210, left and right wear and the chain pitch matter more than the sprocket that made the most noise. If you only have a thumbnail of 'the broken bit', say which of the three jobs it is before anyone picks a SKU.
What to measure before the van leaves
On the bucket: pin diameter, tooth family letters, whether the adapter is still in profile. On the hose: inside diameter, wire count, cut length between fittings, thread or flange on each end, and the pressure printed on the layline. On the undercarriage: sprocket tooth height both sides, chain pitch, shoe width, and whether rollers are already flat. Write abrasive sand versus demolition impact for GET. Write 2SN versus a four-spiral circuit for hose. Write standard versus narrow gauge for the sprocket.
Piecemeal undercarriage — one sprocket 'for now' — is a second mobilisation. Piecemeal GET — teeth on a dead adapter — is a second bucket job. Piecemeal hose — length guessed from a photo — is a second leak. SEROC quotes the listed SKUs when the stamp matches; unique hose runs and other tooth families still need the numbers from the machine, not a lookalike from a different pin system.
The construction pillar is the specification hub. Wear-part identification, hydraulic leaks and undercarriage articles sit next to this comparison. Open the product page that matches the stamp, not the one that matched a thumbnail.
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