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Gates 38404 - Accessory Drive Belt Tensioner Assembly (Alternator and Water Pump)
Product Overview
The Gates Accessory Drive Belt Tensioner Assembly part number 38404 is an essential component designed to maintain the proper tension on the accessory drive belt in your Mini. Engineered to meet OEM standards, this tensioner assembly guarantees optimal performance, reliability, and precise fitment for Mini models, ensuring your engine operates smoothly. Constructed with high-quality materials, the Gates 38404 minimizes wear and tear, leading to enhanced longevity and reduced maintenance costs. Choose Gates 38404 for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This Gates 38404 is equivalent to or replaces the following part numbers: ACDelco 38404, 11287509476, 11288620210, Carquest 38404, Dayco 89611, Goodyear 49387, Litens 950765A, NAPA Belts/Hose 38404, Tendeco 950765.
Vehicle Compatibility
- Mini Cooper S 1.6 L4 GAS (2002–2008)
This may also fits other applications. Please use the vehicle selector tool to verify fitment.
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- 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 38404 Accessory Drive Belt Tensioner Assembly do?
The accessory drive belt tensioner assembly maintains proper tension on the drive belt, preventing slippage and ensuring smooth operation of engine components like the alternator and water pump.
What vehicles is this part compatible with?
This part is compatible with Mini Cooper S models from 2002 to 2008. Please use the vehicle selector tool to confirm fitment for your specific vehicle.
What are common signs this part may need replacement?
Common signs of a failing tensioner assembly include unusual belt noise, visible wear on the drive belt, engine performance issues, and warning lights related to accessory drive components.
Are there any DTC (Diagnostic Trouble Codes) associated with this part?
Consult professional repair documentation to confirm diagnosis, as there may be various DTCs related to accessory drive system issues, but specific codes for this part type are not provided here.
Why should I choose Gates for my Accessory Drive Belt Tensioner Assembly needs?
Gates is known for its quality and reliability in automotive components. Order Gates 38404 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
- MPN38404
- Part TypeAccessory Drive Belt Tensioner Assembly
- PositionAlternator and Water Pump
- OE Part Numbers11287509476, 11288620210
- Cross Reference NumbersURO-010664, URO010664, 38404, 89611, 305611, 950765A, 950765, 49387
- FeaturesBearing Bore Inside Diameter : .67
Bearing Bore Inside Diameter : 17
Belt Type : V-Ribbed
Contact Surface : Smooth/Backside
Contents : Tensioner Assy., Spring, Hydraulic Damper
Grade Type : OE Exact
Material : Steel
Mounting Hole Quantity : 8
Outside Diameter 1 (in) : 2.56
Outside Diameter 1 (mm) : 65
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 |
|---|---|---|---|---|
| 2008 | Mini | Cooper | Base (1.6 L4 GAS) | Aspiration: Supercharged |
| 2008 | Mini | Cooper | Clubman (1.6 L4 GAS) | Aspiration: Supercharged |
| 2008 | Mini | Cooper | S (1.6 L4 GAS) | Aspiration: Supercharged |
| 2008 | Mini | Cooper | S Clubman (1.6 L4 GAS) | Aspiration: Supercharged |
| 2007 | Mini | Cooper | Base (1.6 L4 GAS) | Aspiration: Supercharged |
| 2007 | Mini | Cooper | S (1.6 L4 GAS) | Aspiration: Supercharged |
| 2006 | Mini | Cooper | Base (1.6 L4 GAS) | Aspiration: Supercharged |
| 2006 | Mini | Cooper | S (1.6 L4 GAS) | Aspiration: Supercharged |
| 2005 | Mini | Cooper | Base (1.6 L4 GAS) | Aspiration: Supercharged |
| 2005 | Mini | Cooper | S (1.6 L4 GAS) | Aspiration: Supercharged |
| 2004 | Mini | Cooper | Base (1.6 L4 GAS) | Aspiration: Supercharged |
| 2004 | Mini | Cooper | S (1.6 L4 GAS) | Aspiration: Supercharged |
| 2003 | Mini | Cooper | Base (1.6 L4 GAS) | Aspiration: Supercharged |
| 2003 | Mini | Cooper | S (1.6 L4 GAS) | Aspiration: Supercharged |
| 2002 | Mini | Cooper | Base (1.6 L4 GAS) | Aspiration: Supercharged |
| 2002 | Mini | Cooper | S (1.6 L4 GAS) | Aspiration: Supercharged |
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.









