Neptune RC3G-10 Radiator Cap | 69 kPa (60-27)
Neptune RC3G-10 Radiator Cap 69kPa 60-27 is a clip-on metal radiator cap rated at 69 kPa (10 psi) for a 60-27 (60 mm outer, 27 mm deep) filler neck. It suits older bakkies, trucks and classic vehicles that run lower cooling-system pressures, and replaces caps stamped 10 psi or 0.7 bar. Replaces Echlin TG3-10M.
Key Features
- Genuine Neptune quality with calibrated pressure spring
- Correct low-pressure rating for older cooling systems
- Durable metal construction with fresh sealing gaskets
- Restores cooling system pressure and prevents coolant loss
- Direct replacement for caps stamped 69 kPa / 10 psi / 0.7 bar
Specifications
- Pressure rating: 69 kPa (10 psi / 0.69 bar)
- Filler neck size: 60-27 (60 mm outer, 27 mm deep)
- Material: Metal
- Part reference: RC3G-10
Vehicle Applications | What This Cap Fits
The TecDoc parts catalogue lists 2 vehicle applications for this cap across Land Rover and Peugeot. Vehicle listings are a guide only. Always match the pressure stamping, neck size and reach of the cap you are replacing before ordering.
How to Check You Have the Right Cap
Your current cap is stamped with its pressure rating on the top face. Match the pressure (kPa or psi) and the neck size, or bring your old cap to our Kempton Park counter and we will match it for you. Never open a radiator or expansion cap while the engine is hot.
Radiator Cap Range at Greyhound Auto Retail
Clip-on metal caps: RC1-13 (90kPa, 44-15), RC1-16 (110kPa, 44-15), RC2-13 (90kPa, 46-22), RC2-16 (110kPa, 46-22), RC3G family 60-27: 48kPa, 69kPa, 90kPa (standard / long reach), 97kPa, 103kPa, 110kPa and 124kPa. Expansion tank caps: 97kPa, 117kPa, 138kPa and a 200kPa BMW cap.
Buying oil too? Engine oil of R300 or more gets you 10% off all filters, added automatically at checkout.









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