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replacing the factory oil cooler housing and factory water/oil heat exchanger on Nissan RB25 engines
Two threaded adaptors to suit our Electric Water Pump Adaptors for rotary engines
RB26 and RB30 engines
Note: The older 2-bolt flat design EWP adaptor features a 1/4" NPT threaded port for the factory temperature sender
Oil Restrictors for Nissan RB Engines 20AN replacing the factory oil coolerOil orifice restrictors for Nissan RB engines. When building an RB20, RB25, RB26 or RB30 engine it is common practice to restrict the amount of oil flowing to the head of the engine to prevent excess oil in the head. Sizes available: 0. 9mm 1. 0mm 1. 1mm 1. 25mm 1. 3mm 1. 5mm 0mm (blanking plug) Please see second picture for sizing recommendations. NZ made CNC machined high quality parts. Price is per restrictor.
