Price from
60.35 GBP
60.35 GBP
Airtex 1643 Water Pump
Airtex (8435013807544 / 1643) | Water pump, Vauxhall Saab
Stores where to buy this product
Sponsored This site contains affiliate links for which we may receive compensation. More information
Joom UK
Airtex 1643 Water Pump – Engine Cooling Excellence
The Airtex 1643 Water Pump is a high‑performance cooling component designed to keep your vehicle’s engine operating within optimal temperature ranges. Whether you’re working on an Opel Astra G CC, a Saab 9-5 Kombi, or a Vauxhall Astra Mk4 CC, this pump delivers reliable circulation of coolant, preventing overheating and ensuring longevity.
Key Features & Benefits
- Robust Construction: Made from durable cast iron with reinforced impeller blades for extended service life.
- Efficient Flow: Engineered to provide consistent coolant flow even under high engine loads, reducing thermal stress.
- Seamless Compatibility: Designed to fit a wide range of models including Opel Zafira A, Saab 9-3 3/5 portes, and Vauxhall Astra Mk4 CC.
- Easy Installation: Comes with all necessary mounting hardware, allowing for straightforward replacement.
- Low Noise Operation: Precision bearings minimize vibration, resulting in quieter engine bay performance.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | 1643 |
| Material | Cast Iron with Aluminum Impeller |
| Operating Temperature Range | -40°C to +120°C |
| Flow Rate | Approx. 1.5 L/min (varies by engine) |
| Mounting Type | Standard Bolted Mount |
| Seal Material | EPDM Rubber |
| Compatibility List | Opel, Saab, Vauxhall – specific models include Zafira A, Astra G CC, Omega B, and others. |
Installation Guide
- Preparation: Disconnect the battery and drain the coolant system to avoid spills.
- Remove Old Pump: Unbolt the existing water pump from the engine block, carefully detach the drive belt, and remove the old unit.
- Install New Pump: Position the Airtex 1643 onto the mounting flange, align the bolt holes, and secure with the supplied bolts. Ensure the impeller is correctly seated against the housing.
- Belt Replacement: Install a new drive belt if necessary, following the manufacturer’s tension specifications.
- Refill Coolant: Refill the cooling system with fresh coolant mixture and purge air by running the engine to steady temperature.
Maintenance Tips
- Inspect the drive belt for wear every 12,000 miles (or as recommended).
- Check the pump seal for leaks after each service; replace if any seepage is detected.
- Flush the cooling system annually to remove sediment that can impede flow.
Troubleshooting Common Issues
| Symptom | Possible Cause | Recommended Action |
|---|---|---|
| Engine overheating | Insufficient coolant flow due to pump failure. | Replace the water pump with a new Airtex 1643. |
| Unusual noise from engine bay | Worn bearings or impeller misalignment. | Inspect and replace if necessary; ensure proper installation torque. |
| Coolant leaks at pump housing | Damaged seal or loose mounting bolts. | Tighten bolts to spec and replace the seal if damaged. |
Why Choose Airtex 1643?
The Airtex 1643 Water Pump stands out for its proven reliability across multiple vehicle platforms. Its high‑strength cast iron body resists corrosion, while the precision impeller design guarantees steady coolant circulation even under extreme operating conditions. Users report reduced engine temperature spikes and a noticeable improvement in overall cooling efficiency.
Frequently Asked Questions
- Q: Can I use this pump on any vehicle? A: The Airtex 1643 is specifically engineered for certain Opel, Saab, and Vauxhall models. Always verify compatibility with your vehicle’s service manual.
- Q: How long does the pump typically last? A: With proper maintenance, many owners experience over 100,000 miles of reliable operation before any wear becomes noticeable.
- Q: Does it require a special coolant type? A: Standard ethylene glycol‑based coolants are suitable. Check your vehicle’s specifications for recommended coolant mixtures.
Conclusion
The Airtex 1643 Water Pump delivers dependable cooling performance, essential for maintaining engine health across a range of popular models. Its durable construction, ease of installation, and proven track record make it an excellent choice for anyone seeking to protect their vehicle’s powertrain from overheating.
| This product in Comparor | |
|---|---|
|
Category
This product is cataloged in our store in these categories
|
- Water Pumps |
|
International
Find this product in one of our international stores
|
 40.38 EUR  36.09 EUR  35.25 EUR  42.48 EUR |
| Colors
Predominant colors of the product |
|
| Tags | Water pump Litre Diesel Vauxhall Saab |
| Identifiers | |
| Brand | Airtex Airtex is a brand of automotive and industrial hoses and fittings. The company produces a wide range of products for a variety of applications, including fuel, oil, water, and air. Airtex products are used in a variety of industries, including automotive, agriculture, and construction. |
| Model | Airtex 1643 |
| MPN | Airtex 1643 |
| ID | 7025597 |
| Dimensions / Weight | |
| Key Features | |
Related articles
Efficiently circulates coolant to keep the Honda Airtex 1712 engine within optimal temperature range, ensuring reliable performance and protecting against overheating.
Replacement water pump kit for reliable cooling system performance, featuring a durable design and precise fitment.
Warning - Timing belt may not for sale.Pulley Diameter: 59 mm/2.3 "Height 1: 22 mm Height 2: 32,8 mm Weight: 0.3 kg Product is identically constructed with the following products by other manufacturers:Bosch: 19
Weight [kg]: 0,30Quality Product Brand New
Ensure precise engine timing with the DAYCO ATB1002 Tensioner Pulley, compatible with VAUXHALL, LANCIA, JEEP, FIAT, CHRYSLER, and Abarth vehicles.
Includes all components needed to perform a complete engine timing belt kit and water pump replacement. - Includes quality timing belt, SKF tensioner bearing, SKF idler bearing and a SKF Aquamax water pump with cooling efficiency equivalent to OE for opti