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Valeo 43731 - High Intensity Discharge (HID) Lighting Ballast (Front)
Product Overview
The Valeo High Intensity Discharge (HID) Lighting Ballast, part number 43731, is an essential component designed for a range of European vehicles, including Audi, BMW, Volkswagen, and Volvo. This premium-grade ballast is engineered to OEM standards, ensuring durability and superior performance. One of the standout features of this HID lighting ballast is its ability to withstand harsh weather conditions and road vibrations, providing long-lasting reliability. Its compact design allows for easy installation into your vehicle's existing lighting system, while its advanced technology produces a brighter and clearer light compared to standard headlights, enhancing visibility on the road. Choose Valeo 43731 for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This Valeo 43731 is equivalent to or replaces the following part numbers: 63117180050, 63126938561, 4L0907391, 30784246, 30784923, 381936, 2601051, 601-051, 043731.
Vehicle Compatibility
- Volvo XC90 3.2 (2010–2014)
- Volvo XC60 T6 (2010–2013)
- BMW 128i Base (2008–2013)
- BMW 135i Base (2008–2013)
- Audi Q7 Base (2007–2009)
- Volkswagen Eos Lux (2008–2011)
- Volkswagen Eos Komfort (2008–2011)
- Volvo S60 T5 (2007–2008)
- Volkswagen Passat Komfort (2010)
- Volvo XC90 V8 (2007–2010)
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 Fit™ - 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 Valeo 43731 HID Lighting Ballast do?
The Valeo HID lighting ballast regulates the electrical current to the high-intensity discharge (HID) bulbs in your vehicle, ensuring proper functionality and optimal lighting performance. It is crucial for providing bright and efficient illumination on the road.
How do I know if my HID Lighting Ballast needs replacement?
Common symptoms indicating the need for replacement include flickering headlights, dim lighting, or complete failure of the headlights to illuminate. If you experience these issues, it may be time to replace your HID ballast.
Can I install the Valeo 43731 myself?
Yes, the Valeo 43731 HID Lighting Ballast can be installed by DIY enthusiasts. However, it is important to follow safety precautions and consult your vehicle's service manual for detailed installation instructions.
What are the symptoms of a faulty HID Lighting Ballast?
Symptoms of a faulty HID lighting ballast may include inconsistent headlight brightness, flickering lights, or failure of the headlights to turn on. If you see DTCs such as P0300 or P0463, it may indicate a failing ballast.
Why should I choose Valeo for my HID Lighting Ballast needs?
Valeo is recognized for its commitment to quality and precision in automotive parts. Order Valeo 43731 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.
- BrandValeo
- ManufacturerValeo
- MPN43731
- Part TypeHigh Intensity Discharge (HID) Lighting Ballast
- PositionFront
- OE Part Numbers63126938561, 63117180050, 4L0907391
- Cross Reference Numbers601091, 601-051, 601051, 2601051, 381936, 30784923, 30784246, 3H1008, 043731
- FeaturesBulb Included : Not Applicable
Bulb Quantity : Not Applicable
Bulb Technology : Xenon
Bulb Type : Not Applicable
Bulbholder : Not Applicable
California Proposition 65 : WARNING: N/A for this product.
California Proposition 65 : WARNING: N/A for this product.
California Proposition 65 Image : www.P65Warnings.ca.gov
California Proposition 65 Required : N
Family : Valeo OE
Lens Color : Not Applicable
Leveling : Not Applicable
Mounting Hardware Included : No
Voltage : 12V
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2011 | Volkswagen | Eos | Komfort (2.0 L4 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2011 | Volkswagen | Eos | Lux (2.0 L4 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2011 | BMW | 1 Series M | Base (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2011 | BMW | 135i | Base (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2011 | BMW | 128i | Base (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2011 | Volvo | XC90 | 3.2 (3.2 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2011 | Volvo | XC90 | V8 (4.4 V8 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2011 | Volvo | XC60 | 3.2 (3.2 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2011 | Volvo | XC60 | 3.2 R-Design (3.2 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2011 | Volvo | XC60 | T6 (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2011 | Volvo | XC60 | T6 R-Design (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2009 | BMW | 135i | Base (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2009 | BMW | 128i | Base (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2009 | Volvo | S60 | 2.5T (2.5 L5 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2009 | Volvo | S60 | T5 (2.4 L5 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2009 | Volvo | XC90 | 3.2 (3.2 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2009 | Volvo | XC90 | V8 (4.4 V8 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2009 | Audi | Q7 | Base (3.6 V6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2009 | Audi | Q7 | Premium (3.6 V6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2009 | Audi | Q7 | Premium (4.2 V8 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2009 | Audi | Q7 | TDI (3.0 V6 DIESEL) | Notes: Valeo is the Original Equipment Manufacturer |
| 2009 | Volkswagen | Eos | Komfort (2.0 L4 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2009 | Volkswagen | Eos | Lux (2.0 L4 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2007 | Volkswagen | Eos | 3.2 (3.2 V6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2007 | Volkswagen | Eos | 2.0T (2.0 L4 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2007 | Volkswagen | Eos | Base (2.0 L4 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2007 | Volvo | S60 | 2.5T (2.5 L5 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2007 | Volvo | S60 | R (2.5 L5 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2007 | Volvo | S60 | T5 (2.4 L5 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2007 | Volvo | XC90 | 3.2 (3.2 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2007 | Volvo | XC90 | V8 (4.4 V8 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2007 | Volvo | XC90 | V8 Sport (4.4 V8 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2007 | Audi | Q7 | Base (4.2 V8 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2007 | Audi | Q7 | Base (3.6 V6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2007 | Audi | Q7 | Premium (3.6 V6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2007 | Audi | Q7 | Premium (4.2 V8 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2012 | Volvo | XC90 | 3.2 (3.2 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2012 | Volvo | XC60 | 3.2 (3.2 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2012 | Volvo | XC60 | T6 (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2012 | Volvo | XC60 | T6 R-Design (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2012 | BMW | 135i | Base (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2012 | BMW | 128i | Base (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2014 | Volvo | XC90 | 3.2 (3.2 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2014 | Volvo | XC90 | 3.2 R-Design (3.2 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2013 | Volvo | XC90 | 3.2 (3.2 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2013 | Volvo | XC90 | 3.2 R-Design (3.2 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2013 | Volvo | XC60 | 3.2 (3.2 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2013 | Volvo | XC60 | T6 (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2013 | Volvo | XC60 | T6 R-Design (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2013 | BMW | 135i | Base (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2013 | BMW | 128i | Base (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2010 | Volvo | XC90 | 3.2 (3.2 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2010 | Volvo | XC90 | V8 (4.4 V8 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2010 | Volvo | XC60 | 3.2 (3.2 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2010 | Volvo | XC60 | T6 (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2010 | Volvo | XC60 | T6 R-Design (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2010 | BMW | 128i | Base (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2010 | BMW | 135i | Base (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2010 | Volkswagen | Eos | Komfort (2.0 L4 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2010 | Volkswagen | Eos | Lux (2.0 L4 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2010 | Volkswagen | Passat | Komfort (2.0 L4 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2008 | BMW | 128i | Base (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2008 | BMW | 135i | Base (3.0 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2008 | Volvo | XC90 | 3.2 (3.2 L6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2008 | Volvo | XC90 | V8 (4.4 V8 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2008 | Volvo | XC90 | V8 Sport (4.4 V8 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2008 | Volvo | S60 | 2.5T (2.5 L5 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2008 | Volvo | S60 | T5 (2.4 L5 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2008 | Audi | Q7 | Base (3.6 V6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2008 | Audi | Q7 | Premium (4.2 V8 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2008 | Audi | Q7 | Premium (3.6 V6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2008 | Volkswagen | Eos | VR6 (3.2 V6 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2008 | Volkswagen | Eos | Komfort (2.0 L4 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2008 | Volkswagen | Eos | Lux (2.0 L4 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
| 2008 | Volkswagen | Eos | Turbo (2.0 L4 GAS) | Notes: Valeo is the Original Equipment Manufacturer |
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.
















