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Gates 38423 - Accessory Drive Belt Tensioner Assembly (Alternator and Air Conditioning)
Product Overview
The Gates Accessory Drive Belt Tensioner Assembly (part number 38423) is a vital component designed for the optimal performance of your Audi. Engineered to OE standards, this high-quality tensioner assembly ensures that your vehicle's belts are properly tightened and aligned, promoting smooth operation and extending the lifespan of your engine. Constructed with premium-grade materials, the Gates tensioner assembly is built to withstand the harsh conditions under the hood of your vehicle. It features cutting-edge technology that minimizes noise and vibration while delivering maximum performance. By reducing the risk of belt slippage, the Gates Accessory Drive Belt Tensioner Assembly helps prevent significant damage to your engine, ensuring that it runs smoothly and efficiently. Choose Gates 38423 for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This Gates 38423 is equivalent to or replaces the following part numbers: ACDelco 38423, Carquest 38423, Dayco 305652, Dayco 89652, Dayco 89652FN, Goodyear 49409, Litens 999200A, NAPA Belts/Hose 38423, Tendeco 999200, Volkswagen 06E903133A, Volkswagen 06E903133B, Volkswagen 06E903133E, Volkswagen 06E903133Q.
Vehicle Compatibility
- Audi Q5 3.2 V6 (2010–2012)
- Audi S5 3.0 V6 (2010–2012)
- Audi A6 3.2 V6 (2005–2012)
- Audi A6 Quattro 3.0 V6 (2009–2012)
- Audi A4 Quattro 3.2 V6 (2005–2008)
- Audi A5 Quattro 3.2 V6 (2008–2012)
- Audi S4 3.0 V6 (2010–2011)
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 Gates 38423 Accessory Drive Belt Tensioner Assembly do?
The Gates Accessory Drive Belt Tensioner Assembly maintains proper tension on your vehicle's drive belts, ensuring they operate smoothly and efficiently. This helps prevent belt slippage and protects your engine from potential damage caused by improper belt alignment.
How do I know if my Accessory Drive Belt Tensioner Assembly needs replacement?
Common symptoms of a failing drive belt tensioner include squeaking or chirping noises from the engine, visible wear or damage to the belts, and engine warning lights indicating tension issues. If you notice any of these signs, it's advisable to check the tensioner assembly.
Can I install the Gates 38423 Accessory Drive Belt Tensioner Assembly myself?
Yes, the Gates 38423 can be installed as a DIY project. However, it is important to follow the manufacturer's instructions carefully and ensure you have the proper tools to avoid any installation issues.
What are the symptoms of a faulty Accessory Drive Belt Tensioner Assembly?
Symptoms of a faulty drive belt tensioner include unusual noises from the engine, such as squealing or rattling, as well as poor belt performance leading to potential engine overheating. Regular inspection can help identify these symptoms early.
Why should I choose Gates for my Accessory Drive Belt Tensioner Assembly needs?
Gates is known for its high-quality automotive parts and reliable performance. Order Gates 38423 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.
- BrandGates
- ManufacturerGates
- MPN38423
- Part TypeAccessory Drive Belt Tensioner Assembly
- PositionAlternator and Air Conditioning
- OE Part Numbers06E903133Q, 06E903133E, 06E903133A, 06E903133B
- Cross Reference Numbers89652FN, 38423, 49409, 89652, 999200A, 305652, URO-007533, URO007533, 999200
- FeaturesBearing Bore Inside Diameter : .67
Bearing Bore Inside Diameter : 17
Belt Type : V-Ribbed
Contact Surface : Smooth/Backside
Contents : Tensioner Assy., Bolt
Grade Type : OE Performance
Material : Thermoplastic
Mounting Hole Quantity : 1
Outside Diameter 1 (in) : 2.99
Outside Diameter 1 (mm) : 76
Pulley 1 Flanged : No
Pulley Quantity : 1
Width 1 (in) : 1.02
Width 1 (mm) : 26
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2012 | Audi | Q5 | Premium Plus (3.2 V6 GAS) | |
| 2012 | Audi | Q5 | Prestige (3.2 V6 GAS) | |
| 2012 | Audi | S5 | Cabriolet (3.0 V6 GAS) | |
| 2011 | Audi | A6 | Base (3.2 V6 GAS) | |
| 2011 | Audi | A6 Quattro | Avant (3.0 V6 GAS) | |
| 2011 | Audi | A6 Quattro | Base (3.0 V6 GAS) | |
| 2011 | Audi | Q5 | Premium Plus (3.2 V6 GAS) | |
| 2011 | Audi | Q5 | Prestige (3.2 V6 GAS) | |
| 2011 | Audi | S4 | Base (3.0 V6 GAS) | |
| 2011 | Audi | S5 | Cabriolet (3.0 V6 GAS) | |
| 2010 | Audi | A5 Quattro | Base (3.2 V6 GAS) | |
| 2010 | Audi | A6 | Base (3.2 V6 GAS) | |
| 2010 | Audi | A6 Quattro | Avant (3.0 V6 GAS) | |
| 2010 | Audi | A6 Quattro | Base (3.0 V6 GAS) | |
| 2010 | Audi | Q5 | Premium (3.2 V6 GAS) | |
| 2010 | Audi | Q5 | Premium Plus (3.2 V6 GAS) | |
| 2010 | Audi | Q5 | Prestige (3.2 V6 GAS) | |
| 2010 | Audi | S4 | Base (3.0 V6 GAS) | |
| 2010 | Audi | S5 | Cabriolet (3.0 V6 GAS) | |
| 2009 | Audi | A4 Quattro | Base (3.2 V6 GAS) | |
| 2009 | Audi | A4 Quattro | Cabriolet (3.2 V6 GAS) | |
| 2009 | Audi | A5 Quattro | Base (3.2 V6 GAS) | |
| 2009 | Audi | A6 | Base (3.2 V6 GAS) | |
| 2009 | Audi | A6 Quattro | Avant (3.0 V6 GAS) | |
| 2009 | Audi | A6 Quattro | Base (3.0 V6 GAS) | |
| 2009 | Audi | Q5 | Premium (3.2 V6 GAS) | |
| 2009 | Audi | Q5 | Premium Plus (3.2 V6 GAS) | |
| 2009 | Audi | Q5 | Prestige (3.2 V6 GAS) | |
| 2008 | Audi | A4 | Base (3.2 V6 GAS) | |
| 2008 | Audi | A4 Quattro | Avant (3.2 V6 GAS) | |
| 2008 | Audi | A4 Quattro | Base (3.2 V6 GAS) | |
| 2008 | Audi | A4 Quattro | Cabriolet (3.2 V6 GAS) | |
| 2008 | Audi | A5 Quattro | Base (3.2 V6 GAS) | |
| 2008 | Audi | A6 | Base (3.2 V6 GAS) | |
| 2008 | Audi | A6 Quattro | Avant (3.2 V6 GAS) | |
| 2008 | Audi | A6 Quattro | Base (3.2 V6 GAS) | |
| 2007 | Audi | A4 | Base (3.2 V6 GAS) | |
| 2007 | Audi | A4 Quattro | Avant (3.2 V6 GAS) | |
| 2007 | Audi | A4 Quattro | Base (3.2 V6 GAS) | |
| 2007 | Audi | A4 Quattro | Cabriolet (3.2 V6 GAS) | |
| 2007 | Audi | A6 | Base (3.2 V6 GAS) | |
| 2007 | Audi | A6 Quattro | Avant (3.2 V6 GAS) | |
| 2007 | Audi | A6 Quattro | Base (3.2 V6 GAS) | |
| 2006 | Audi | A4 | Base (3.2 V6 GAS) | |
| 2006 | Audi | A4 Quattro | Avant (3.2 V6 GAS) | |
| 2006 | Audi | A4 Quattro | Base (3.2 V6 GAS) | |
| 2006 | Audi | A6 | Base (3.2 V6 GAS) | |
| 2006 | Audi | A6 Quattro | Avant (3.2 V6 GAS) | |
| 2006 | Audi | A6 Quattro | Base (3.2 V6 GAS) | |
| 2005 | Audi | A4 Quattro | Avant (3.2 V6 GAS) | |
| 2005 | Audi | A4 Quattro | Base (3.2 V6 GAS) | |
| 2005 | Audi | A6 Quattro | Base (3.2 V6 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.









