KOSHIN 734505066 HEXAGON SOCKET BOLT M8 x 25, 9129209080025
€7.00
Excluding VAT
Genuine Koshin Hexagon Socket Bolt (M8×25 SUS) — Part No. 734505066
Product Overview
The Genuine Koshin Hexagon Socket Bolt (Part No. 734505066) is an Original Equipment Manufacturer (OEM) stainless steel fastener engineered specifically for Koshin 2-inch heavy-duty trash pumps, including the KTH-50X, KTZ-50X, and KTR-50X series.
Forged from high-grade SUS Stainless Steel, this metric M8×25 socket head cap screw is utilized to anchor the internal Volute Casing (P/N 0115489) directly to the front cover/casing assembly. Built to handle continuous submersion in slurry, mud, and chemicals, its corrosion-resistant stainless steel composition prevents rust-seizing, allowing smooth removal during routine pump cleanouts and impeller maintenance.
Key Specifications
| Feature | Details |
|---|---|
| Brand | Koshin Ltd. (Japan) |
| Part Number | 734505066 |
| Part Name | Hexagon Socket Bolt |
| Schematic Ref No. | Position 23 (KTH-50X / KTR-50X) |
| Material Grade | SUS (Stainless Steel) |
| Thread Size & Length | M8 × 25 mm |
| Compatible Equipment | Koshin KTH-50X, KTZ-50X, KTR-50X (2" Trash Pumps) |
| Associated Hardware | Used with Seal Washers ϕ8 (P/N 854255008 / Pos 27) |
| Standard Qty per Pump | 2 pcs required (3 pcs on updated 0121900 front cover systems) |
Model Compatibility
KOSHIN 2" Heavy-Duty Trash Pumps
Koshin KTH-50X (2" Trash Pump powered by Honda GX160)
Koshin KTZ-50X (2" Trash Pump powered by Koshin Engine)
Koshin KTR-50X (2" Trash Pump powered by Robin-Subaru EX17)
Design & Key Features
Corrosion-Proof Stainless Steel: Premium SUS stainless steel prevents rust, galling, and chemical erosion in harsh wastewater and outdoor jobsite environments.
High-Torque Allen Drive: Internal hex socket design allows tight torque application in recessed casing areas without rounding off screw heads.
Direct OEM Fit: Precision-cut M8 metric threads guarantee exact alignment with internal volute mounting boss channels.
Package Includes & Tech Notes
1x Genuine Koshin M8×25 SUS Hexagon Socket Bolt (734505066)
Maintenance Tip: Standard legacy 2-inch pumps use 2 pcs of this bolt. If you have converted your pump to the new-model Front Cover (P/N 0121900) and Volute (P/N 0121897), note that 3 pcs of M8×25 SUS bolts are required. Always replace the sealing washers (P/N 854255008) alongside these bolts to prevent water bypass behind the front cover.
EAN Code
4260278625169


















































