Genuine Nissan Water Pump – RB25DET / RB26DETT (21010-21U26)
Reliable Engine Cooling for High-Performance RB Builds.
The Genuine Nissan Water Pump (21010-21U26) is the factory-recommended cooling solution for the RB25DET and RB26DETT engines. Designed to handle the thermal demands of turbocharged applications, this pump provides consistent coolant flow to prevent overheating during spirited driving or high-load scenarios. It is the standard replacement for R33 and R34 Skyline GT-R and GTS-T models, offering the peace of mind that only an OEM Nissan Japan part can provide.
- Product: Engine Water Pump
- Fitment: Nissan Skyline R33 (GTS-T/GT-R), R34 (GT-R)
- Engine: RB25DET, RB26DETT
- Condition: Brand New / Genuine OEM Nissan Japan
- Part Number: 21010-21U26
⚠️ FITMENT & INSTALLATION NOTE
Non-Neo Compatibility: This pump is designed for standard RB25/RB26 engines. For RB25DET NEO engines found in the R34 GTT, please use part number 21010-AA527.
Sealant: Please note that Genuine Nissan water pumps do not include a paper gasket; high-quality RTV sealant is required for installation to ensure a leak-free seal.
Key Features:
- OEM Cooling Efficiency: Engineered with the correct impeller design to maintain factory-spec coolant velocity across the engine block and radiator.
- Direct Bolt-On: Features precision-machined mounting surfaces for a perfect fit on the RB engine block without modifications.
- Durability: Manufactured by Nissan Japan to withstand the high vibrations and rotational speeds typical of the RB engine platform.
- Essential Maintenance: A critical component for any timing belt service or high-horsepower build where cooling system integrity is paramount.
What is Included:
- (1) Genuine Nissan Water Pump (21010-21U26)
Suggested Add-ons:
- Service Kit: Genuine Nissan Timing Belt & Service Kit
- Thermostat: Nismo Low-Temp Thermostat - RB Engines (21200-RS580)
- Trim:
- GT-R
- Trim:
- Non GT-R
