Gast K281 Air Motor 1AM/2AM/4AM/6AM/8AM/16AM Series Repair Kit
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The Gast K281 is a genuine OEM repair/rebuild kit designed for Gast LL and NLP series air motors including the 1AM, 1UP, 2AM, 4AM, 6AM, 8AM, and 16AM model families. The kit contains all major wear components required for a full service overhaul, including vanes (visible as the tan/buff rectangular composite vane block), end cap gaskets (red fiber/silicone gaskets with bolt-hole pattern), a felt muffler/filter element, an end cap assembly with rotor shaft and spring-loaded vane retainer, and additional seals and O-rings. Compatible lubricated models operate at up to 100 psi / 7 bar; LL and NLP non-lube models are rated at 80–90 psi / 5.5–6.2 bar depending on the specific model variant, as confirmed by the instruction sheet visible inside the package. This kit is new in original Gast factory clamshell packaging and carries a California Proposition 65 warning for nickel content.
Product Specifications
| Manufacturer | Gast Manufacturing (IDEX Corporation) |
| Part Number | K281 |
| Compatible Motor Series | 1AM, 1UP, 2AM, 4AM, 6AM, 8AM, 16AM (LL and NLP models) |
| Max Operating Pressure – Lubricated Models | 100 psi / 7 bar |
| Max Operating Pressure – LL/NLP Non-Lube Models | 80–90 psi / 5.5–6.2 bar |
| Kit Contents | Vanes, end cap gaskets (red), felt muffler element, end cap/rotor assembly, O-rings and seals |
| Gasket Material | Red fiber/silicone composite |
| Condition | New in original factory packaging |
| Prop 65 Warning | Contains nickel |