KOSHIN Hexagon Socket Head Bolt (M8×60) — Part No. 734532076
€4.00
Excluding VAT
Genuine Koshin Hexagon Socket Head Bolt (M8×60) — Part No. 734532076 (9129200080060
Product Overview
The Genuine Koshin Socket Bolt (Part No. 734532076) is an OEM high-strength engine mounting fastener manufactured by Alps Seiko Co., Ltd. (Japan) to JIS B 1176 / ISO 4762 standards. Engineered specifically for Koshin SEV-50X (2-inch), SEV-80X (3-inch), and SEV-40F (1.5-inch) engine-driven water pumps.
Forged from Class 12.9 High-Tensile Alloy Steel (SCM), this heavy-duty M8×60 mm socket head cap screw passes through the die-cast aluminium Flange Bracket (P/N 0121226 / Pos 5) to anchor the entire pump wet-end securely to the engine crankcase. It is engineered to withstand extreme torsional shear, thermal expansion, and continuous operational vibration without stretching or backing out.
Key Specifications
| Feature | Details |
|---|---|
| Brand / Manufacturer | Koshin Ltd. / Alps Seiko Co., Ltd. (Japan) |
| Part Number | 734532076 |
| Part Name | Socket Bolt / Hexagon Socket Head Cap Screw |
| Schematic Ref No. | Position 27 (SEV-50X / SEV-80X), Position 27 (SEV-40F) |
| Material & Property Class | High-Tensile SCM Alloy Steel, Grade 12.9 (JIS B 1176 / ISO 4762) |
| Thread Size & Length | M8×60 mm (Pitch: 1.25 mm) |
| Compatible Equipment | Koshin SEV-50X (2"), SEV-80X (3"), SEV-40F (1.5") Water Pumps |
| Associated Hardware | Used with Seal Washers ϕ8 (P/N 854255008 / Pos 29) |
| Standard Qty per Pump | 4 pcs required |
Model Compatibility
KOSHIN Engine-Driven Water Pumps
Koshin SEV-50X (2" Gas Engine Water Pump powered by Koshin K180 Engine)
Koshin SEV-80X (3" Gas Engine Water Pump powered by Koshin K180 Engine)
Koshin SEV-40F (1.5" Gas Engine Water Pump powered by Koshin K100 Engine)
Design & Key Features
Grade 12.9 Industrial Strength: Class 12.9 alloy steel provides maximum tensile strength (1200 MPa) to resist stripping, shearing, or bending under heavy engine loads.
Precision JIS Metric Threading: Precision-machined M8×60 mm threads ensure smooth, exact thread engagement into engine crankcase mounting bosses.
Vibration-Proof Structural Clamping: Holds the flange bracket flat against the engine block face, maintaining strict shaft-to-mechanical seal alignment.
Package Includes & Tech Notes
1x Genuine Koshin M8×60 Socket Bolt (734532076)
Maintenance Tip: A full flange bracket installation on SEV series pumps requires 4 pcs of this bolt. Always replace or inspect the accompanying Seal Washers ϕ8 (P/N 854255008 / Pos 29) during reassembly to prevent water and oil leaks along the bolt channels.
EAN Code
4260278624964
