Description
Part Number: AF64-4029
Aeroflow Billet Thermostat Housing – Blue (Nissan/Holden RB Engines)
Precision CNC-machined T6-6061 billet aluminium thermostat housing engineered as an upgraded direct replacement for Nissan RB20, RB25, and RB30 engines.
Key Features
- ☑ Precision CNC machined from aircraft-grade T6-6061 billet aluminium.
- ☑ Anodised blue protective finish for enhanced corrosion resistance and engine bay aesthetic.
- ☑ Straight hose outlet maintains factory OEM radiator hose routing.
- ☑ Features internal -16ORB female threads for flexible custom AN plumbing setups.
- ☑ Integrated O-ring base flange replaces traditional paper gaskets for a superior leak-free seal.
- ☑ Direct bolt-on fitment for Nissan and Holden RB20, RB25, and RB30 engine blocks.
Technical Specifications
| Brand | AeroFlow Performance |
|---|---|
| MPN | AF64-4029 |
| Material | T6-6061 Billet Aluminium |
| Finish | Blue Anodised |
| Engine Compatibility | Nissan / Holden RB20, RB25, RB30 (Excludes RB26) |
| Hose Outlet Size | 41mm (1-39/16″) |
| Internal Thread | -16 ORB (O-Ring Boss) |
| Bolt Hole Spacing | 70mm (2-3/4″ centre-to-centre) |
| Overall Dimensions | 93.50mm L x 94.30mm W x 55.20mm H |
| Flange Seal | High-Temp O-Ring Flange |
What’s Included in the Box
- 1 x Aeroflow Billet Thermostat Housing in Blue (AF64-4029)
- 1 x High-Performance Base O-Ring Seal
- 1 x Stainless Steel Hardware Kit
Engineered for high-performance track and street setups, Aeroflow Performance components deliver outstanding reliability under demanding cooling conditions. At JP Racing, we hold comprehensive UK inventory of genuine Aeroflow hardware, offering fast delivery and expert technical support for your RB build.







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