Description
Overview:
Diaphragm Packing for Hikoki Hitachi CG24ECMP Brush Cutter is a genuine sealing component for carburettors and fuel pump sections on small 2-stroke machines. Made from a fuel‐resistant diaphragm material designed to cope with petrol/oil mixtures, it maintains the correct pressure and vacuum needed for stable fuel metering. This helps the engine start reliably, idle smoothly, and pick up cleanly under load. Supplied as a Genuine Part (Hitachi/Hikoki), OEM 6685220, it replaces 475-25038-20. It is commonly used on brush cutters and other handheld tools in the same engine family, including the CG24ECMP and CG27ECP. Suitable for routine maintenance or repair when the original diaphragm becomes stiff, warped, or torn, restoring performance and preventing leaks.
Key Features:
- Genuine Hitachi/Hikoki spare part for assured fit and function
- OEM reference 6685220; replaces 475-25038-20
- Fuel‐resistant diaphragm material for durability in petrol/oil environments
- Helps restore correct carburettor metering and consistent running
- Provides a reliable seal to prevent air and fuel leaks
- Direct replacement; straightforward to fit with basic hand tools
- Supports smooth starting, stable idling, and clean acceleration
- Suitable for a wide range of compatible brush cutters and related tools
Typical Applications:
Used in the carburettor/fuel pump section of brush cutters, hedge trimmers, leaf blowers, and chainsaws in the Hitachi/Hikoki family. Ideal for servicing engines that are hard to start, surge at idle, or lose power under load, and for preventative maintenance where diaphragms have aged or hardened.
Also known as:
Carburettor diaphragm, metering diaphragm, fuel pump diaphragm, diaphragm seal, carb gasket, fuel system membrane, sealing diaphragm for small 2‐stroke engines.
Fits Models:
A25EB, CG 22EAB, CG 22EAD, CG 22EAS, CG 24EA2, CG 24EAS, CG 24EBD, CG 24EBS, CG 24EC, CG 24ECM, CG 24ECP, CG 27EA2, CG 27EAS, CG 27EBD, CG 27EBS, CG 27EC, CG 27ECM, CG 27ECP, CG22EAB, CG22EAD, CG22EAP2, CG22EAS, CG24EA2, CG24EAP2, CG24EAS, CG24EASP, CG24EBD, CG24EBDP, CG24EBS, CG24EBSP, CG24EC, CG24ECM, CG24ECMP, CG24ECP, CG27EA2, CG27EAP2, CG27EAS, CG27EASP, CG27EBD, CG27EBDP, CG27EBS, CG27EBSP, CG27EC, CG27ECM, CG27ECMP, CG27ECP, CH 22EA2, CH 22EB2, CH 22EC2, CH 24EA, CH 24EAP, CH 24EBP, CH 24ECP, CH 55EB3, CH 66EB3, CH 78EB, CH 78EC3, CH 78ED, CH105EC, CH22EA2, CH22EAP2, CH22EB2, CH22EBP2, CH22EC2, CH22ECP2, CH24EA, CH24EAP, CH24EBP, CH24ECP, CH55EB3, CH66EB3, CH78EB, CH78EC3, CH78ED, CS 25EC, CS 30EC, CS 30EG, CS 30EJ, CS 33EA, CS 33EB, CS 33EC, CS 33ED, CS 33EDP, CS 33EDT, CS 33EL, CS 33ET, CS 35EG, CS 35EJ, CS 38EK, CS 38EL, CS 40EA, CS 40EK, CS 40EM, CS 45EK, CS 45EM, CS 51EA, CS 51EAP, CS25EC, CS30EC, CS30EG, CS30EH, CS30EJ, CS33EA, CS33EB, CS33EC, CS33ED, CS33EDP, CS33EDT, CS33EDTP, CS33EL, CS33ET, CS35EG, CS35EH, CS35EJ, CS38EK, CS38EL, CS40EA, CS40EK, CS40EL, CS40EM, CS45EK, CS45EL, CS45EM, CS51EA, CS51EAP, DW 25EA, DW25EA, ECS3300D, ECS3301B, ECS3301D, ECS3350D, ECS3351B, ECS3351D, ECV-3800, ECV-3801, ECV-3900, ECV-4501, ECV3500N, ECV3800, ECV3801, ECV3900, ECV4500, ECV4501, ECV5601, HTD22PF, HTD2522PFB, HTD2530PFB, HTS2530PF, RB 24EA, RB 24EAP, RB 27E, RB 27EA, RB 27EAP, RB 27EP, RB 65EF, RB100EF, RB24EA, RB24EAP, RB27E, RB27EA, RB27EAP, RB27EP, RB65EF, TBL 4600, TBL-4600, TBL-4610, TBL4600, TBL4610, TCG 24EC, TCG 27EC, TCG22EAB, TCG22EAD, TCG22EAP2, TCG22EAS, TCG24EA2, TCG24EAP2, TCG24EAS, TCG24EASP, TCG24EBD, TCG24EBDP, TCG24EBS, TCG24EBSP, TCG24EC, TCG24ECP, TCG27EAP2, TCG27EAS, TCG27EASP, TCG27EBD, TCG27EBDP, TCG27EBS, TCG27EBSP, TCG27EC, TCG27ECP, TCH 24EA, TCH 24EB, TCH22EA2, TCH22EAP2, TCH22EB2, TCH22EBP2, TCH22EC2, TCH22ECP2, TCH24EA, TCH24EAP, TCH24EB, TCH24EBP, TCH24ECP, TCP-210, TCP-25B, TCP210, TCP25B, TCS 33EB, TCS 33ED, TCS 40EA, TCS 51EA, TCS2800S, TCS2801S, TCS2801SC, TCS3301S, TCS3350S, TCS33EB, TCS33ED, TCS33EDP, TCS33EDT, TCS33EDTP, TCS3401S, TCS40EA, TCS51EA, TCS51EAP, TE250DLS, TED-210S, TED210S, THT-240B, THT-2530, THT-2540, THT2100SB, THT210SB, THT240B, THT2510S, THT2520SB, THT2530, THT2540, TRB 24EA, TRB 24EAP, TRB 27EA, TRB 27EAP, TRB 27EP, TRB 65EF, TRB24EA, TRB24EAP, TRB27EA, TRB27EAP, TRB27EP, TRB65EF
Alternate Part Numbers:
6685220, 475-25038-20
Product Specifications
| L&S Part No. | HKK6685220 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Hitachi/Hikoki |
| OEM No. | 6685220 |
| Unit of Sale | 1 |
| Applications | A25EB, CG 22EAB, CG 22EAD, CG 22EAS, CG 24EA2, CG 24EAS, CG 24EBD, CG 24EBS, CG 24EC, CG 24ECM, CG 24ECP, CG 27EA2, CG 27EAS, CG 27EBD, CG 27EBS, CG 27EC, CG 27ECM, CG 27ECP, CG22EAB, CG22EAD, CG22EAP2, CG22EAS, CG24EA2, CG24EAP2, CG24EAS, CG24EASP, CG24EBD, CG24EBDP, CG24EBS, CG24EBSP, CG24EC, CG24ECM, CG24ECMP, CG24ECP, CG27EA2, CG27EAP2, CG27EAS, CG27EASP, CG27EBD, CG27EBDP, CG27EBS, CG27EBSP, CG27EC, CG27ECM, CG27ECMP, CG27ECP, CH 22EA2, CH 22EB2, CH 22EC2, CH 24EA, CH 24EAP, CH 24EBP, CH 24ECP, CH 55EB3, CH 66EB3, CH 78EB, CH 78EC3, CH 78ED, CH105EC, CH22EA2, CH22EAP2, CH22EB2, CH22EBP2, CH22EC2, CH22ECP2, CH24EA, CH24EAP, CH24EBP, CH24ECP, CH55EB3, CH66EB3, CH78EB, CH78EC3, CH78ED, CS 25EC, CS 30EC, CS 30EG, CS 30EJ, CS 33EA, CS 33EB, CS 33EC, CS 33ED, CS 33EDP, CS 33EDT, CS 33EL, CS 33ET, CS 35EG, CS 35EJ, CS 38EK, CS 38EL, CS 40EA, CS 40EK, CS 40EM, CS 45EK, CS 45EM, CS 51EA, CS 51EAP, CS25EC, CS30EC, CS30EG, CS30EH, CS30EJ, CS33EA, CS33EB, CS33EC, CS33ED, CS33EDP, CS33EDT, CS33EDTP, CS33EL, CS33ET, CS35EG, CS35EH, CS35EJ, CS38EK, CS38EL, CS40EA, CS40EK, CS40EL, CS40EM, CS45EK, CS45EL, CS45EM, CS51EA, CS51EAP, DW 25EA, DW25EA, ECS3300D, ECS3301B, ECS3301D, ECS3350D, ECS3351B, ECS3351D, ECV-3800, ECV-3801, ECV-3900, ECV-4501, ECV3500N, ECV3800, ECV3801, ECV3900, ECV4500, ECV4501, ECV5601, HTD22PF, HTD2522PFB, HTD2530PFB, HTS2530PF, RB 24EA, RB 24EAP, RB 27E, RB 27EA, RB 27EAP, RB 27EP, RB 65EF, RB100EF, RB24EA, RB24EAP, RB27E, RB27EA, RB27EAP, RB27EP, RB65EF, TBL 4600, TBL-4600, TBL-4610, TBL4600, TBL4610, TCG 24EC, TCG 27EC, TCG22EAB, TCG22EAD, TCG22EAP2, TCG22EAS, TCG24EA2, TCG24EAP2, TCG24EAS, TCG24EASP, TCG24EBD, TCG24EBDP, TCG24EBS, TCG24EBSP, TCG24EC, TCG24ECP, TCG27EAP2, TCG27EAS, TCG27EASP, TCG27EBD, TCG27EBDP, TCG27EBS, TCG27EBSP, TCG27EC, TCG27ECP, TCH 24EA, TCH 24EB, TCH22EA2, TCH22EAP2, TCH22EB2, TCH22EBP2, TCH22EC2, TCH22ECP2, TCH24EA, TCH24EAP, TCH24EB, TCH24EBP, TCH24ECP, TCP-210, TCP-25B, TCP210, TCP25B, TCS 33EB, TCS 33ED, TCS 40EA, TCS 51EA, TCS2800S, TCS2801S, TCS2801SC, TCS3301S, TCS3350S, TCS33EB, TCS33ED, TCS33EDP, TCS33EDT, TCS33EDTP, TCS3401S, TCS40EA, TCS51EA, TCS51EAP, TE250DLS, TED-210S, TED210S, THT-240B, THT-2530, THT-2540, THT2100SB, THT210SB, THT240B, THT2510S, THT2520SB, THT2530, THT2540, TRB 24EA, TRB 24EAP, TRB 27EA, TRB 27EAP, TRB 27EP, TRB 65EF, TRB24EA, TRB24EAP, TRB27EA, TRB27EAP, TRB27EP, TRB65EF |
| Machine Type | Brushcutters, Chainsaws, Hedgetrimmers |
| Fits Brands | Hikoki |
| Fits Models | RB65EF | TRB 24EAP | TRB 27EAP | TRB 27EP | TBL 4600 |
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