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Rein CHE0431 - Engine Coolant Hose (Pipe To Thermostat Housing)
MPN: CHE0431
The Rein CHE0431 Engine Coolant Hose ensures efficient coolant transfer between your engine and radiator, preventing overheating. Built to OEM standards for durability.
Vehicle Specific
Check if this part fits your vehicle.
Product Overview
The Rein Engine Coolant Hose (part number CHE0431) is a crucial component for maintaining your vehicle's cooling system, specifically designed for Audi models. This premium-grade coolant hose connects the engine to the thermostat housing, ensuring optimal coolant flow and preventing overheating. Manufactured to OE standards, it guarantees reliability and perfect fitment for Audi vehicles. With its high-quality construction, the Rein coolant hose resists the harsh conditions of automotive environments, making it an essential choice for both professional technicians and DIY enthusiasts. Choose Rein CHE0431 for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This Rein CHE0431 is equivalent to or replaces the following part numbers: 06F 121 057 D, 06F121057D.
Vehicle Compatibility
- Audi A4 2.0 L4 (2005–2009)
- Audi A4 Quattro 2.0 L4 (2005–2009)
- Audi A4 Cabriolet 2.0 L4 (2006–2009)
- Audi A4 Quattro Avant 2.0 L4 (2006–2009)
This may also fit other applications. Please use the vehicle selector tool to verify fitment.
Why Shop at eEuroparts.com?
- Proven Expertise: Over 25 years of experience with European vehicles means we know your car inside and out.
- Exclusive Kits That Fitâ„¢ - complete repair solutions with no guesswork
- Fitment Confidence: Our accurate cataloging ensures you get the right part the first time.
- Fast, Reliable Shipping: Orders ship quickly from our U.S.-based warehouses.
- Transparent Pricing: Competitive prices with no hidden fees or surprise charges.
- Established Trust: Serving the European auto community since 2000.
Frequently Asked Questions
What does the Rein CHE0431 Engine Coolant Hose do?
The Rein Engine Coolant Hose facilitates the transfer of coolant between the engine and the thermostat housing, helping to maintain optimal engine temperature and prevent overheating.
How do I know if my coolant hose needs replacement?
Key indicators that your coolant hose may need replacement include visible cracking or swelling, leaks around the hose, a spongy feel when squeezed, or overheating issues in your vehicle.
Can I install the Rein CHE0431 myself?
Yes, the Rein CHE0431 can be installed as a DIY project. However, ensure to follow proper procedures to avoid any damage to the cooling system.
What are the symptoms of a faulty coolant hose?
Common symptoms of a failing coolant hose include coolant leaks, overheating, and a spongy hose texture. If you encounter these issues, it is advisable to inspect the coolant hose for deterioration.
Why should I choose Rein for my coolant hose needs?
Rein is known for its OE quality and reliable automotive parts. Order Rein CHE0431 today for a factory-correct replacement that restores safety and performance.
Note: All information on this page and in the FAQ is for general reference only. Verify fitment and consult a professional as needed. eEuroparts.com is not responsible for incorrect part selection or installation.
- BrandRein
- ManufacturerRein
- MPNCHE0431
- Part TypeEngine Coolant Hose
- PositionPipe To Thermostat Housing
- OE Part Numbers06F 121 057 D, 06F121057D
- FeaturesApplication Type : Application Specific
Bullet Point 1 : Reduces installation time.
Bullet Point 2 : No cutting, refitting or adjusting the hose.
Bullet Point 3 : Prevents leaks and comebacks from reusing old quick connectors and o-rings.
Bullet Point 4 : Resistant to heat, salt, road debris, oil and other contaminants.
Centerline Length Inches : 4.5300
Centerline Length Metric : 11.5062000
Color : Black
Container Type : BG
Country of Origin : TR
Heat Shield Inc : No
Hose End 1 Inside Diameter Inches : 0.9400
Hose End 1 Inside Diameter Metric : 2.3876000
Hose End 1 Outside Diameter Inches : 1.1800
Hose End 1 Outside Diameter Metric : 2.9972000
Hose End 2 Inside Diameter Inches : 1.1300
Hose End 2 Inside Diameter Metric : 2.8702000
Hose End 2 Outside Diameter Inches : 1.3800
Hose End 2 Outside Diameter Metric : 3.5052000
Hose End 3 Inside Diameter Inches : 0.0000
Hose End 3 Inside Diameter Metric : 0.0000000
Hose End 4 Inside Diameter Inches : 0.0000
Hose End 4 Inside Diameter Metric : 0.0000000
Hose End 5 Inside Diameter Inches : 0.0000
Hose End 5 Inside Diameter Metric : 0.0000000
Hose Material : EPDM
Hose Type : Single
Industry Standards : SAE J20R4 -D2
Item Height : 1.5000
Item Length : 4.0000
Item Level GTIN : 843266065914
Item Qty : 1
Item Quantity Size : 1
Item Quantity Size UOM : EA
Item UOM : EA
Item Weight : 0.0900
Item Weight Unit UOM : LB
Item Width : 2.0000
Link to Manufacturer Page : www.reinautomotive.com
Maximum Working Pressure : 0.0000
Product Desc Extended 240 : Rein OE Quality water hoses are designed to be direct replacements for OE hoses and assemblies. Rein hoses are identical, from the size and shape of their branches to the thermoplastic quick connect fittings as called for by the OE
Product Desc Invoice 40 : Rein Water Hose
Product Desc Long 80 : Rein OE Quality Water Hose
Product Desc Short 20 : Water Hose
Protective Shield Inc : No
Tech Note : Complete OE Quality Direct Fit European Hose
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2009 | Audi | A4 | Base (2.0 L4 GAS) | |
| 2009 | Audi | A4 | Cabriolet (2.0 L4 GAS) | |
| 2009 | Audi | A4 Quattro | Avant (2.0 L4 GAS) | |
| 2009 | Audi | A4 Quattro | Base (2.0 L4 GAS) | |
| 2009 | Audi | A4 Quattro | Cabriolet (2.0 L4 GAS) | |
| 2008 | Audi | A4 | Base (2.0 L4 GAS) | |
| 2008 | Audi | A4 | Cabriolet (2.0 L4 GAS) | |
| 2008 | Audi | A4 Quattro | Avant (2.0 L4 GAS) | |
| 2008 | Audi | A4 Quattro | Base (2.0 L4 GAS) | |
| 2008 | Audi | A4 Quattro | Cabriolet (2.0 L4 GAS) | |
| 2007 | Audi | A4 | Base (2.0 L4 GAS) | |
| 2007 | Audi | A4 | Cabriolet (2.0 L4 GAS) | |
| 2007 | Audi | A4 Quattro | Avant (2.0 L4 GAS) | |
| 2007 | Audi | A4 Quattro | Base (2.0 L4 GAS) | |
| 2007 | Audi | A4 Quattro | Cabriolet (2.0 L4 GAS) | |
| 2006 | Audi | A4 | Base (2.0 L4 GAS) | |
| 2006 | Audi | A4 Quattro | Avant (2.0 L4 GAS) | |
| 2006 | Audi | A4 Quattro | Base (2.0 L4 GAS) | |
| 2005 | Audi | A4 | Base (2.0 L4 GAS) | |
| 2005 | Audi | A4 Quattro | Avant (2.0 L4 GAS) | |
| 2005 | Audi | A4 Quattro | Base (2.0 L4 GAS) |
Warranty Overview
At eEuroparts, we stand behind the quality of the products we sell. Every part we offer is backed by a warranty designed to give you peace of mind and protect your investment.
Standard Warranty – Most Parts
Coverage: 2 years or 24,000 miles (whichever comes first) from purchase date.
Protection: Defects in materials or workmanship under normal personal use.
Eligibility: Applies only to the original purchaser and the vehicle where the part was first installed.
Exclusions:
Wear-and-tear items (brake pads, filters, bulbs, wipers, etc.)
Commercial, fleet, rideshare, off-road, or racing use
Improper installation, misuse, accidents, or modifications
Not Covered: Labor, shipping, towing, or incidental costs.
Bison Performance Warranty – Our House Brand
Coverage: Limited Lifetime Warranty for as long as you own your vehicle.
Applies To: All products sold under the Bison Performance label.
Premium Protection: Goes beyond our standard warranty — if it’s a Bison product, the 2-year/24k mile limit is replaced with lifetime coverage.
Exclusions: Same as the standard warranty (normal wear, commercial use, improper installation, etc.).
What’s Included: Replacement of the defective product (labor and shipping excluded).
Warranty Claim Requirements
To keep claims fast and fair, we require:
Proof of purchase (invoice or order confirmation).
Photos or videos showing the defective part, order number, date, VIN, and odometer reading.
Diagnostic reports or part returns for non-visible issues may be requested.
Claims must be truthful, properly documented, and reflect normal consumer use.
Buy With Confidence: We back our products because we believe in their quality, with a transparent, customer-first warranty process you can trust. And with Bison Performance products, you’ll enjoy Limited Lifetime protection—an assurance few brands can match.
For full details and exclusions, please see our complete Warranty Terms & Conditions.
This summary is for convenience only. For full warranty coverage details, exclusions, and requirements, see our official Warranty Terms & Conditions. In case of conflict, the full policy governs.
Return Policy Overview
Most parts can be returned within 30 days of delivery if unused, uninstalled, and in original packaging.
To start a return, contact customer support via Chat or Contact Us.
Restocking fee: Up to 20% may apply for certain orders (buyer’s remorse, order errors, or special-order items)
Refunds: Issued to your original payment method within 3–5 business days after inspection
Exchanges: Not automatic — please return and reorder
Replacements: May be approved for incorrect or defective items reported within 7 days
Not returnable:
Used or installed parts
Electrical components
Opened filter kits, gaskets, or contaminated items
Final sale or custom orders
Important Notes:
Return shipping is your responsibility unless we made a verified error
Fitment is the customer’s responsibility (we can assist, but do not guarantee)
Country of origin may vary and is not grounds for return
For complete details, please see our full Return Policy.
This Returns summary is provided for convenience only. All returns, refunds, and exchanges are subject to the complete Returns Policy. In the event of any conflict, the full policy governs.
Fast, Reliable Shipping — Straight to Your Door
We ship most orders the same day when placed before 2 PM CST (Monday–Friday). Our main warehouse is just east of Nashville, TN, and we also ship from multiple locations nationwide to get your order to you as quickly as possible.
We use trusted carriers like UPS, FedEx, and USPS.
Tracking info is emailed to you as soon as your order ships.
Delivery estimates at checkout are based on carrier data, but not guaranteed.
Need help with a shipment?
If your order is missing, damaged, or incorrect, just let us know within 5 days of delivery. We’ll walk you through the quick claim process — including a few photos to help us make things right.
For complete details, please see our full Shipping Policy.
This Shipping summary is provided for convenience only. Delivery times, carrier terms, fees, restrictions, risk of loss, and other details are governed by our complete Shipping Policy. In the event of any conflict, the full policy governs.
