NPW H-36 Water Pump – Honda Civic / CRX VTi

The NPW H-36 is a high-quality Japanese water pump designed for selected Honda engines used in models such as the Civic and CRX VTi. Manufactured by NPW (Nippon Pump Manufacturing), this pump is an OEM-equivalent replacement, offering precise fitment and reliable long-term engine cooling.

Construction and quality

NPW water pumps are widely used as original equipment or OEM suppliers for Japanese vehicles. The H-36 model features a robust housing, precision-machined mounting surfaces and a high-quality bearing and seal assembly designed for continuous operation under high temperature and load.

• Japanese OEM-level manufacturing quality
• Durable bearing and shaft design
• High-efficiency impeller for stable coolant flow
• Exact dimensions matching factory specifications

Application – Honda models

The NPW H-36 water pump is used in selected Honda engines installed in:

• Honda Civic
• Honda CRX VTi

It is commonly applied in naturally aspirated Honda engines where reliable cooling and precise OEM fitment are required. If you are unsure about compatibility with your specific engine code or production year, please contact us with your VIN number.

Why replace the water pump?

The water pump is a critical component of the engine cooling system. Over time, wear of the internal bearing or seal may lead to coolant leaks, noise or reduced coolant circulation.

• coolant leakage from the pump housing or weep hole
• bearing noise or play
• engine overheating due to insufficient coolant flow

Replacing the pump with a high-quality unit such as NPW H-36 restores proper cooling performance and helps protect the engine from overheating damage.

Advantages of NPW H-36

• OEM-equivalent quality: trusted Japanese manufacturer
• Perfect fit: no modification required
• Long service life: high-grade materials and seals
• Reliable cooling: stable coolant circulation in daily and sporty use

FAQ – NPW H-36 Honda water pump

Is NPW H-36 an original Honda part?
NPW is a Japanese OEM supplier. The H-36 water pump is an OEM-equivalent replacement, matching factory specifications in fit and performance.

Should the water pump be replaced with the timing belt?
Yes. In engines where the water pump is driven by the timing belt, replacement during timing service is strongly recommended.

Does the pump include a gasket?

Yes, it is sold with gasket.