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Genuine OEM 11247835439 - Engine Connecting Rod Bearing (Lower)
Product Overview
This Genuine OEM 11247835439 engine connecting rod bearing is a lower bearing designed for BMW M-performance inline-six engines. It fits the E46 M3 sedan and E36/7 and E85/E86 Z-series M models from 2001 to 2008, delivering the precise tolerances and material specifications required for the high-revving S54 powerplant. Genuine OEM bearings meet factory standards for clearance, load capacity, and longevity, making them the preferred choice for engine rebuilds and bearing replacement service.
This connecting rod bearing is sold individually. Order quantity 6 for a complete engine bearing set (one per connecting rod).
Cross Reference Numbers
This Genuine OEM 11247835439 is equivalent to or replaces the following part numbers: 11-24-7-835-439.
Vehicle Compatibility
This part fits the popular models below. For Fitment Confidence, please use the vehicle selector tool above to verify exact compatibility for your vehicle.
- BMW M3 Sedan 3.2 L6 Gas (E46): 2001–2006
- BMW Z3 M Roadster 3.2 L6 Gas (E36/7): 2001–2002
- BMW Z3 M Coupe 3.2 L6 Gas (E36/7): 2001–2002
- BMW Z4 M Roadster 3.2 L6 Gas (E85): 2006–2008
- BMW Z4 M Coupe 3.2 L6 Gas (E86): 2006–2008
This may also fit other applications. Please use the vehicle selector tool to verify fitment.
Often Replaced Together
For a complete engine bearing service, many owners replace the following at the same time:
- Main bearing set (upper and lower)
- Thrust washers
- Engine gasket set
- Motor oil and filter
Why Shop at eEuroparts.com?
- Proven Expertise: Over 25 years of experience with European vehicles means we know your car inside and out.
- Fitment Confidence: Our accurate cataloging ensures you get the right part the first time, backed by our fitment guarantee.
- Fast, Reliable Shipping: Most in-stock orders ship the same or next business day from our U.S.-based warehouse.
- Transparent Pricing: Competitive prices with no hidden fees or surprise charges.
- Exclusive Kits That Fitâ„¢: Complete repair solutions with no guesswork.
- Established Trust: Serving the European car community since 2000.
Frequently Asked Questions
How do I know if my BMW M3 or Z-series M model needs new connecting rod bearings?
Symptoms of connecting rod bearing wear include engine knock or ticking from the lower end of the engine, especially under load or acceleration. Metal particles in the oil, visible on an oil analysis test, are a strong indicator. If your engine has high mileage or has been rebuilt, bearing replacement is a standard maintenance step during engine overhaul.
Why should I use Genuine OEM bearings instead of aftermarket alternatives?
Genuine OEM bearings are manufactured to BMW factory specifications for the S54 engine and ensure exact clearances, material composition, and load-carrying capacity. They carry the same warranty confidence as dealership parts and are the standard choice for professional engine builders and technicians servicing M-series vehicles.
How many connecting rod bearings do I need for a complete engine service?
The S54 engine in your E46 M3 or Z-series M model has six cylinders and therefore six connecting rods. A complete bearing set requires six lower bearings and six upper bearings (twelve total). This SKU is for one lower bearing, so order quantity 6 of this part plus quantity 6 of the upper bearing part to complete the set.
What tools and steps are involved in replacing connecting rod bearings?
Connecting rod bearing replacement requires engine removal and partial or full disassembly. You will need a floor jack, jack stands, socket set, torque wrench, and engine hoist. This is a professional-level job best performed by experienced technicians or builders familiar with BMW engine architecture. Consult your factory service manual for exact torque specifications and bearing installation procedures.
How does bearing clearance affect engine performance and longevity?
Proper bearing clearance allows oil to form a protective film between the bearing and the crankshaft journal. Incorrect clearance (too tight or too loose) causes accelerated wear, oil starvation, or catastrophic engine damage. Genuine OEM bearings maintain factory-spec clearance and load capacity, ensuring reliable long-term operation when installed correctly.
Should I replace other engine bearings at the same time?
Yes. If you are performing a bearing replacement, it is standard practice to replace the complete main bearing set (upper and lower) and thrust washers in the same service. Mixing old and new bearings can cause uneven load distribution and premature failure. A full bearing refresh ensures balanced engine operation and extends service life.
Why Shop at eEuroparts.com?
- Proven Expertise: Over 25 years of experience with European vehicles means we know your car inside and out.
- Fitment Confidence: Our accurate cataloging ensures you get the right part the first time, backed by our fitment guarantee.
- Fast, Reliable Shipping: Most in-stock orders ship the same or next business day from our U.S.-based warehouse.
- Transparent Pricing: Competitive prices with no hidden fees or surprise charges.
- Exclusive Kits That Fitâ„¢: Complete repair solutions with no guesswork.
- Established Trust: Serving the European car community since 2000.
Order Genuine OEM 11247835439 today. In-stock orders ship same or next business day from our U.S. warehouse, and our fitment team is one call away if you need help confirming the right part for your BMW M3 or Z-series M model.
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.
- BrandGenuine OEM
- ManufacturerGenuine OEM
- MPN11247835439
- Part TypeEngine Connecting Rod Bearing
- PositionLower
- OE Part Numbers11-24-7-835-439, 11247835439
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2003 | BMW | M3 | Base (3.2 L6 GAS) | Notes: Color: Red |
| 2007 | BMW | Z4 | M Roadster (3.2 L6 GAS) | Notes: Color: Red |
| 2007 | BMW | Z4 | M Coupe (3.2 L6 GAS) | Notes: Color: Red |
| 2002 | BMW | Z3 | M Coupe (3.2 L6 GAS) | Notes: Color: Red |
| 2002 | BMW | Z3 | M Roadster (3.2 L6 GAS) | Notes: Color: Red |
| 2002 | BMW | M3 | Base (3.2 L6 GAS) | Notes: Color: Red |
| 2004 | BMW | M3 | Base (3.2 L6 GAS) | Notes: Color: Red |
| 2001 | BMW | Z3 | M Roadster (3.2 L6 GAS) | Notes: Color: Red |
| 2001 | BMW | Z3 | M Coupe (3.2 L6 GAS) | Notes: Color: Red |
| 2001 | BMW | M3 | Base (3.2 L6 GAS) | Notes: Color: Red |
| 2006 | BMW | M3 | Base (3.2 L6 GAS) | Notes: Color: Red |
| 2006 | BMW | Z4 | M Roadster (3.2 L6 GAS) | Notes: Color: Red |
| 2006 | BMW | Z4 | M Coupe (3.2 L6 GAS) | Notes: Color: Red |
| 2008 | BMW | Z4 | M Roadster (3.2 L6 GAS) | Notes: Color: Red |
| 2008 | BMW | Z4 | M Coupe (3.2 L6 GAS) | Notes: Color: Red |
| 2005 | BMW | M3 | Base (3.2 L6 GAS) | Notes: Color: Red |
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.
