B-Series Water Pump Bolt – M6 × 45 mm

B-Series Water Pump Bolt — M6 × 45 mm

This bolt is used to secure the water pump to the engine block on Honda B-series engines. Designed to handle constant heat cycling and coolant exposure, it provides the correct clamping force to maintain a proper seal between the water pump and block.

The integrated flange distributes load evenly across the mounting surface, helping prevent loosening and gasket distortion over time. Replacing water pump bolts during service is recommended if corrosion, thread wear, or stretching is present to ensure reliable cooling system operation.

Manufactured to Honda factory specifications for fit, strength, and durability.

Specifications

• Thread pitch: M6 × 1.0

• Head size: 10 mm

• Body length: 45 mm

Factory Part Number: 95701-06045-08