GSX-R1000 K4 vs K6 Carbon Parts: How to Check Fitment Before You Buy
Short answer: Do not assume a carbon part for a Suzuki GSX-R1000 K4 fits a K6, or vice versa, just because both bikes are called GSX-R1000. Confirm the exact year, model and market code, component, and mounting points with the seller. An OEM fiche can help identify the original part, but it does not prove that an aftermarket carbon replacement fits.
The Suzuki parts catalogue identifies the 2004 GSX-R1000 K4 front fender with part numbers beginning 53110-18G00; the 2006 GSX-R1000 K6 (E28) catalogue lists a front fender beginning 53110-41G00. Those are distinct entries for the cited catalogue variants, not a universal verdict about every aftermarket part or every market. Compare the exact carbon part against your bike and get confirmation for that exact year and variant. 2004 K4 front-fender fiche · 2006 K6 front-fender fiche.
Check the exact motorcycle and part
Before ordering, record the model year and code from your registration, VIN lookup, or the relevant parts catalogue. Then identify the exact component: a front fender, rear fender, side fairing, under-cowling, and seat cowl are separate parts with different mounting areas.
| Check | Record | What it does—and does not—tell you |
|---|---|---|
| Year and model code | For example, 2004 K4 or 2006 K6; include a market code when available | Identifies the exact catalogue entry; the family name alone is not a fitment confirmation. |
| Component | Front fender, rear fender, fairing, under-cowling, or another named part | Prevents comparing different parts that happen to share “GSX-R1000” in their names. |
| OEM fiche | Diagram label and listed number for the corresponding stock component | Helps identify the stock component; it does not prove aftermarket interchangeability. |
| Mounting area | Photos of tabs, holes, edges, guides, and nearby panels | Helps the seller assess the exact configuration; listing photos may not show every interface. |
| Bike history | Replacement brackets, repaired tabs, prior crash repairs, or other nearby modifications | Flags differences that can make stock-bike assumptions unreliable. |
What the current S1carbon listings cover
At the time checked, S1carbon's active Suzuki GSX-R1000R front- and rear-fender listings name model years 2017–2026. They do not list the 2004 K4 or 2006 K6 years, so do not order those listed items for a K4 or K6 based on the shared GSX-R1000 name. See the 2017–2026 front-fender listing and 2017–2026 rear-fender listing for their stated ranges.
Ask the seller about the exact carbon part
Send the year, model/market code, component name, and clear photos of the mounting area. Ask: “Does this exact carbon part and selected variant fit my 2004 GSX-R1000 K4 [or 2006 K6, market code], using the mounting points and adjacent parts shown in these photos?” Also ask which hardware is included and whether original clips or brackets must be reused. If the answer only repeats “GSX-R1000,” ask for confirmation of the exact year and component before ordering.
If a part is already in your hands
If the mounting holes do not line up, stop before forcing bolts, drilling, trimming, or filing the part. Recheck its identity and orientation, then compare the bike-side brackets and nearby panels. The motorcycle fairing alignment checklist covers safe checks after a panel fails to align. For the broader pre-order process, use the motorcycle carbon-part fitment checklist.
Bottom line
For GSX-R1000 K4 and K6 carbon parts, verify the exact year, model/market code, component, mounting points, and hardware with the seller. The cited OEM catalogues show different front-fender entries for the identified 2004 K4 and 2006 K6 variants, but that alone does not settle aftermarket interchangeability. S1carbon's currently checked fender listings state 2017–2026, not K4/K6; treat those older-year fitments as unconfirmed unless a seller verifies a specific part for your bike.