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Description
Expansion Tank Opel Astra H / GTC / TwinTop 2004-2011 MAP-100634Expansion Tank for Opel Astra H GTC TwinTop (20042011) This coolant expansion tank (reservoir) is designed for the Opel Astra H range, helping maintain correct cooling system pressure and coolant volume during normal temperature changes. It is a direct replacement for the original tank when the existing unit is cracked, leaking, or the mounting points have weakened over time. Vehicle Compatibility Opel Astra H (A04) 20042011 1. 4 (Z14XEP) 66 kW Opel
Expansion Tank for Opel Astra H / GTC / TwinTop (2004–2011)
This coolant expansion tank (reservoir) is designed for the Opel Astra H range, helping maintain correct cooling system pressure and coolant volume during normal temperature changes. It is a direct replacement for the original tank when the existing unit is cracked, leaking, or the mounting points have weakened over time.
Vehicle Compatibility
- Opel Astra H (A04) 2004–2011 — 1.4 (Z14XEP) 66 kW
- Opel Astra H (A04) 2004–2011 — 1.6 (A16XER / Z16XER) 85 kW
- Opel Astra H (A04) 2004–2011 — 1.6 (Z16XE1 / Z16XEP) 77 kW
- Opel Astra H (A04) 2004–2011 — 1.8 (A18XER / Z18XER) 103 kW
- Opel Astra H (A04) 2004–2011 — 1.8 (Z18XE) 92 kW
- Opel Astra H (A04) 2004–2011 — 1.9 CDTI 16V (Z19DTJ) 88 kW
- Opel Astra H GTC (A04) 2005–2010 — 1.8 (Z18XER) 103 kW
- Opel Astra H GTC (A04) 2005–2010 — 1.9 CDTi (Z19DTH) 110 kW
- Opel Astra H GTC (A04) 2005–2010 — 2.0 Turbo (Z20LER) 147 kW
- Opel Astra H GTC (A04) 2005–2010 — 2.0 OPC (Z20LEH) 177 kW
- Opel Astra H TwinTop (A04) 2007–2009 — 1.8 (A18XER / Z18XER) 103 kW
- Opel Astra H TwinTop (A04) 2007–2009 — 2.0 Turbo (Z20LER) 147 kW
OE Reference Numbers
- Opel: 13 04 241
- Vauxhall: 93179469
Specifications
- Product Type: Coolant Expansion Tank / Reservoir
- SKU: MAP-100634
- Fitment Notes: Confirm hose routing, cap type, and sensor/return port layout match your existing tank before fitment.
Common Signs of a Failing Expansion Tank
- Visible coolant leaks or staining around the tank seams
- Cracks near hose connections or mounting points
- Coolant smell in the engine bay after driving
- Low coolant warnings despite no radiator leaks found
Nationwide delivery is available in South Africa. If you are unsure about fitment, share your VIN or vehicle details and we’ll help confirm compatibility before you install the part.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 3
Gama lights
Number of Items: 4
3 out of 4 are great. One did not work right away. Company send 2 extra battery packs. But still one bad unit. Talking now about options. Company seems to have good customer service. But bad light definetly an issue. 1 of 4 bad.
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Reviewed in the United States on June 9, 2026
★★★★★ 5
Excellent product high quality.
Size: 36 sqft, Size: 36 sqft
This stuff definitely suprised how easy it was to work with.
Not to mention it sticks very well. Don't put it on anything you may need to get back into. It will take the paint off of a service area. I have a 2018 dodge durango. I just had a aftermarket audio sytem installed. It was rattling so bad it was driving me crazy. I seen this stuff and decided to give it a try.
Its a night and day difference no moore rattling. I box will be enough to do my back gate and all front and rear doors also. For the price you honestly can not beat it. If your on the fence about trying it don't be. You definitely won't regret getting it. Its worth every penny. You don't realize how much something rattling in your vehicle robs you of spund quality. Glad I made the decision. Now off to the other 4 doors. ,and then the roof. One of the things I really like was the fact it has multiple line to help you make even better cuts. Definitely will buy a gen.
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Reviewed in the United States on February 28, 2026
★★★★★ 5
Affordable, Clean and does the job.
Size: 36 sqft, Size: 36 sqft
I consumed about 90% of this box doing all doors and the tailgate on a 2000 tahoe. I applied it very liberally inside every door (exteror) panel. We then added an almost equal amount of deadening/absorbing/decoupling foam to the other side of the door (panel side). If you know how many rattles a circa 2000 tahoe GMT800 can have by now, you can appreciate why I added this as a "must" if i were to put some money back into this vehicle. Best sub $150 spent on this mini resto so far, right next to tint.
Good quality. Not to thick or thin. Good sized sheets. Seamed to deaden as good as another slightly thicker material i recently used in my F250. My box was delivered with no issues of melting or anything funky. Clean, no major smell before or after and easy to work with. Maybe buy a roller set and wear gloves. Save your hands if your doing inside of panels. Good buy. Will buy more for future projects.
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Reviewed in the United States on February 17, 2026
★★★★★ 5
Great product
Size: 36 sqft
Easy to apply, made a big difference in sound deadening on side by side. Would definitely purchase again.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
AS GOOD AS ANY OTHER, WORKS GREAT
Size: 36 sqft, Size: 36 sqft
Used this in my 17 RAM 1500. This stuff works great, just as good as S...ss brand that is also sold on here. Same thickness and same tackiness. And this stuff sticks like crazy, once its laid down and rolled onto the surface, it is hard to remove, so I am pretty sure it will stay where I installed it. It is great value, one box was enough to do the whole roof of the truck with a little left over for small spots. I think it took a total of 2.5 boxes to do my whole crew cab, roof, floor and back wall and most of the firewall, and I also added a layer of their .25" foam. I do notice a difference in less outside noise, from wind and road. I will be doing my wife car soon, and this is the product I will be using again, I recommend this.
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Reviewed in the United States on January 14, 2026
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