OE Quality
60-Day Returns

Gates CO34927 Engine Coolant Hose Flange
Overview of Gates Coolant Outlet CO34927
The Gates Coolant Outlet CO34927 is a precision-engineered engine coolant hose flange designed specifically for Volkswagen Passat models. Manufactured from durable plastic, this coolant outlet ensures reliable performance and a secure connection within the vehicle's cooling system.
- Constructed from high-quality plastic material for durability
- OE exact replacement for Volkswagen Passat coolant systems
- Features 2 bolt holes for secure mounting
- Includes an integrated seal for leak prevention
- Multiple outlet inside and outside diameters for precise fitment
Detailed Product Description
This engine coolant hose flange from Gates is part of the Coolant Outlet product line, which focuses on delivering reliable and exact-fit components for vehicle cooling systems. The CO34927 flange is designed to match original equipment specifications, ensuring compatibility and performance for Volkswagen Passat vehicles. It features two bolt holes for secure attachment and an integrated seal to maintain a tight, leak-free connection. The flange's plastic construction balances strength and resistance to corrosion, contributing to long-term durability.
The outlet diameters vary, with outside diameters measuring 0.3, 0.76, 0.89, and 1.26 inches, and inside diameters of 0.11, 0.54, 0.58, and 1.01 inches, accommodating precise coolant hose connections. This part does not include additional gaskets but incorporates one integrated seal to ensure proper sealing within the cooling system.
Applications and Common Issues Addressed
- Replacement of worn or cracked coolant hose flanges in Volkswagen Passat cooling systems
- Prevention of coolant leaks caused by damaged or degraded flange seals
- Restoration of proper coolant flow and pressure within the engine cooling circuit
- Resolution of overheating issues related to faulty coolant outlet components
- Maintenance of engine temperature regulation by ensuring secure hose connections
Installation Notes and Tips
When installing the Gates Coolant Outlet CO34927, ensure the mounting surface is clean and free of debris to achieve a proper seal. Use the two bolt holes to securely fasten the flange, avoiding overtightening which could damage the plastic material. Since the flange includes an integrated seal, additional gaskets are not required. Verify hose diameters match the flange outlet sizes for a leak-free fit.
Quality Assurance and Warranty
Gates manufactures the CO34927 coolant hose flange to meet or exceed original equipment standards, providing an OE exact replacement for Volkswagen Passat vehicles. The part undergoes rigorous quality control to ensure durability and reliable performance. While specific warranty details are not provided, Gates products typically come with manufacturer-backed quality assurance to support long-term use.
| Brand | Gates |
| Part Number | CO34927 |
| Position | Coolant Outlet |
| Material | Plastic |
| Outlet Outside Diameter | .3 |
| Outlet Outside Diameter | .76 |
| Outlet Outside Diameter | .89 |
| Outlet Outside Diameter | 1.26 |
| Bolt Hole Quantity | 2 |
| Type | Coolant hose flange |
| Gasket Quantity | 0 |
| Outlet Inside Diameter | .11 |
| Outlet Inside Diameter | .54 |
| Outlet Inside Diameter | .58 |
| Outlet Inside Diameter | 1.01 |
| 9841 | 1 |
| 9848 | No |
| By-Pass Holes | No |
| Contents | Coolant hose flange, integrated seal |
| Number of Bolt Holes | 2 |
| Number of Gaskets | 0 |
| Number of Seals | 1 |
| OE Exact | Yes |
| Outlet Inside Diameter 1 (in) | 1.01 |
| Outlet Inside Diameter 2 (in) | .58 |
| Outlet Inside Diameter 3 (in) | .54 |
| Outlet Inside Diameter 4 (in) | .11 |
| Outlet Outside Diameter 1 (in) | 1.26 |
| Outlet Outside Diameter 2 (in) | .89 |
| Outlet Outside Diameter 3 (in) | .76 |
| Outlet Outside Diameter 4 (in) | .3 |
| Type | Coolant hose flange |
This part fits 3 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2014 | Volkswagen | Passat | 2.0L | L4 | DIESEL | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2013 | Volkswagen | Passat | 2.0L | L4 | DIESEL | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2012 | Volkswagen | Passat | 2.0L | L4 | DIESEL | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.