Automotive cooling component, the Dacatoow Coolant Cap, maintains correct pressure and a hermetic seal for expansion tanks on compatible Vauxhall and Opel models. Peace of mind for drivers and independent mechanics who need a fast, reliable repair. Is the OEM match robust enough to stop repeat trips to a garage?
⚡ At a Glance
- • Pressure Control: 0.9Bar precision pressure rating with CNC-moulded ABS body and EPDM seals
- • Best for: Owners and mechanics of compatible Vauxhall/Opel models needing direct OEM replacement
- • Not ideal for: Vehicles outside the listed Corsa, Astra, Insignia, Mokka and Zafira ranges
Direct OEM replacement matching part numbers 13598760, 13502353 and 53330779, designed for listed Corsa, Astra, Insignia, Mokka X and Zafira model years. Wide -40°C to 140°C tolerance and reinforced torsion spring suit cold UK winters and higher-heat situations.
Reduced Boil-Over Risk – thanks to 0.9Bar precision pressure control
0.9Bar pressure rating holds the cooling system at an optimal pressure, while a CNC-moulded ABS body ensures dimensional accuracy and EPDM seals resist heat-related degradation. The controlled pressure reduces steam formation under stop-start or heavy-load conditions.
Fewer overheating incidents during urban driving and lower likelihood of head gasket strain, offering a more reliable cooling system under everyday use.
Long-Lasting Performance – with reinforced torsion spring and wide temperature endurance
Reinforced torsion spring is engineered for more pressure cycles, and materials tolerate an operational range from -40°C to 140°C. Sealing components are chosen to maintain elasticity across those temperatures.
Suitable for cold UK winters and occasional high-heat events such as track days, reducing the need for premature replacement.
Fast, Practical Replacement – with tool-free audible click-lock and anti-slip grip ridges
Tool-free installation locks in place with an audible click, while anti-slip ridges allow secure tightening even when gloves are oily. Exact-match OEM part numbers guarantee correct fitment to specified expansion tanks.
A genuine-fit swap that can be completed roadside in around 30 seconds, restoring a hermetic seal and preventing coolant loss quickly and without specialist tools.
✨ The 4 Key Reasons for Dacatoow Coolant Cap
- Exact OEM Match – Ensures correct fitment with listed Vauxhall/Opel models, avoiding workshop returns.
- Precision 0.9Bar Rating – Controls boil-over risk in stop-start traffic, stabilising the cooling system.
- Wide Temperature Range – Survives -40°C to 140°C, suitable for UK conditions and occasional track use.
- Tool-free Installation – Audible click-lock and anti-slip ridges allow fast roadside replacement.
📋 Technical Details at a Glance
- Category: Automotive Parts and Accessories
- Brand: Dacatoow
- Compatible Models: Corsa D (06-14), Corsa E (14-19), Astra J (09-15), Astra K (15-21), Insignia A (08-17), Insignia B (17-), Mokka X (16-), Zafira Tourer (11-18)
- OEM Part Numbers: 13598760, 13502353, 53330779
- Pressure Rating: 0.9Bar
❓ Frequently Asked Questions
Q: Will this cap fit my Vauxhall or Opel?
A: Compatibility is confirmed for Corsa D (06-14), Corsa E (14-19), Astra J (09-15), Astra K (15-21), Insignia A (08-17), Insignia B (17-), Mokka X (16-), and Zafira Tourer (11-18). The part matches OEM numbers 13598760, 13502353 and 53330779.
Q: What pressure rating does the cap use?
A: The cap uses a 0.9Bar pressure rating designed to maintain optimal cooling system pressure for the specified Opel and Vauxhall engines.
Q: Can I install the cap myself if I have a roadside issue?
A: Yes, tool-free installation locks with an audible click and anti-slip grip ridges enable a secure, roughly 30-second replacement without tools.
🏆 Our Verdict
Suitable for Vauxhall and Opel owners and independent mechanics who need a direct OEM-fit radiator expansion cap. OEM-matched part numbers, a 0.9Bar pressure rating and a triple-layer silicone gasket deliver secure sealing and broad temperature endurance. Durable construction and the anti-leak guarantee make the cap a sensible long-term replacement that reduces the likelihood of repeat repairs.
