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2009 - 2016 BMW Z4 Keyless Entry Transmitter (OEM)

Only 1 left in stock
$59.95

ℹ️ Product Notes

This is a used part. It is a remote control (fob) for your car. Check that your old remote has the FCC ID: KR55WK49123 to make sure this part fits.

Fits cars without Comfort Access (no battery door on back). Must match FCC ID KR55WK49123. Requires professional programming.
Condition: Excellent (A)
Like new, minimal to no wear
SKU #
7781863-11S1MB.456

Why Buy Used OEM Parts?

✓ Quality-Verified: Every used OEM part we sell has been professionally inspected and tested to ensure it meets our quality standards. While it may show some cosmetic wear from previous use, it's fully functional and ready to install.

✓ Original Equipment: This is a genuine OEM (Original Equipment Manufacturer) part - the exact same part that came with your vehicle from the factory. It's designed specifically for your make and model, ensuring perfect fitment and performance.

✓ Works Like New: Despite some visual wear, this part will perform just as well as a brand new one. The internal components and functionality are intact, giving you the same reliability you'd expect from OEM quality.

✓ Significant Savings: Save 50-80% compared to buying new! Used OEM parts offer exceptional value - you get factory quality at a fraction of the cost. It's the smart choice for budget-conscious vehicle owners who won't compromise on quality.

✓ Risk-Free Purchase: We stand behind our used parts with a generous 6-month warranty, 30-day returns, and 100% money-back guarantee. If it doesn't work out for any reason, simply return it for a full refund. You have nothing to lose!

🛡️ 30-Day Returns + 6-Month Warranty - Buy with Confidence!

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Vehicle Fitment Guide

This part fits the following vehicles:

BMW
Z4 2009-2016 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
2.5si Convertible 2009 - 2010 L6 2.5L RWD | Manual
2.5si Convertible 2009 - 2010 L6 2.5L RWD | Automatic
3.0si Convertible 2009 - 2010 L6 3.0L RWD | Manual
3.0si Convertible 2009 - 2010 L6 3.0L RWD | Automatic
M Coupe Coupe 2009 L6 3.2L RWD | Manual
M Roadster Convertible 2009 L6 3.2L RWD | Manual
sDrive30i Convertible 2009 - 2011 L6 3.0L RWD | Automatic
sDrive30i Convertible 2009 - 2011 L6 3.0L RWD | Manual
sDrive35i Convertible 2009 - 2016 L6 3.0L Turbo RWD | Automatic Dual Clutch
sDrive35i Convertible 2009 - 2016 L6 3.0L Turbo RWD | Manual
sDrive23i Convertible 2011 L6 2.5L RWD | Automatic
sDrive23i Convertible 2011 L6 2.5L RWD | Manual
sDrive35i Convertible 2011 - 2013 L6 3.0L Turbo RWD | Automatic
sDrive35i Convertible 2011 - 2013 L6 3.0L RWD | Manual
sDrive35i Convertible 2011 - 2013 L6 3.0L RWD | Automatic
sDrive35is Convertible 2011 - 2016 L6 3.0L Turbo RWD | Automatic Dual Clutch
sDrive20i Convertible 2012 - 2013 L4 2.0L Turbo RWD | Automatic
sDrive20i Convertible 2012 - 2013 L4 2.0L Turbo RWD | Manual
sDrive28i Convertible 2012 - 2016 L4 2.0L Turbo RWD | Manual
sDrive28i Convertible 2012 - 2016 L4 2.0L Turbo RWD | Automatic
Design Pure Traction Convertible 2014 - 2016 L4 2.0L Turbo RWD | Automatic
Design Pure Traction Convertible 2014 L4 2.0L Turbo RWD | Manual
M Sport Convertible 2014 - 2016 L4 2.0L Turbo RWD | Automatic
M Sport Convertible 2014 - 2016 L4 2.0L Turbo RWD | Manual
M Sport Convertible 2014 - 2016 L6 3.0L RWD | Automatic
M Sport Convertible 2014 - 2016 L6 3.0L RWD | Manual
sDrive18i Convertible 2014 L4 2.0L Turbo RWD | Manual
sDrive18i Convertible 2014, 2016 L4 2.0L Turbo RWD | Automatic
sDrive35i Pure Traction Convertible 2014 L6 3.0L Turbo RWD | Automatic Dual Clutch
sDrive18iA Convertible 2015 L4 2.0L Turbo RWD | Automatic

⚠️ Important: Please verify your vehicle's year, make, model, and specifications before ordering. If you're unsure about fitment, contact our customer service team for assistance.

Policies

Shipping & Handling

  • Standard shipping: 3-7 business days via UPS Ground
  • Parts are carefully packaged to prevent damage during transit

Returns (30 Days)

We accept returns within 30 days of delivery for this part.

  • Defective parts: We will replace the part or issue a refund at our discretion
  • Electronic parts: Must be returned with the sealed inspection bag unopened. The clear bag allows full visual inspection before opening. Once opened, electronic parts can only be exchanged for a replacement if defective — no refunds
  • Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
  • Return shipping: We cover return shipping as part of our 100% money-back guarantee
  • Parts must be returned in original packaging and unmodified condition
  • Poorly packaged returns that arrive damaged will not be credited

6-Month Warranty

All used parts include a 6-month warranty from the date of purchase.

  • If your part fails within 6 months, we will send a replacement
  • Refunds are only issued if we cannot provide a suitable replacement
  • Warranty covers defects — not installation errors, misuse, or damage after installation

Note: Warranty is for replacement, not refund. A part failing on day 80? We'll replace it. But the return window for refunds is 30 days.

Damaged in Shipping?

If your part arrives damaged:

  • Stop immediately — do not install the part
  • Keep all original packaging and boxes
  • Take clear photos of the damage and packaging
  • Contact us within 48 hours of delivery

We will handle the carrier claim. You are not responsible for shipping damage — we just need your help documenting it.

Order Cancellation

Orders can be cancelled before shipment for a full refund. Once shipped, cancellations follow our return policy.

Symptoms & Diagnosis

Warning Signs the Keyless Entry Transmitter is Failing

  • Intermittent operation: Sometimes it works, sometimes it doesn't.
  • Reduced range: You have to be closer to the car for it to work.
  • Complete failure: The transmitter stops working entirely.
  • Buttons feel worn or damaged.
  • Car alarm goes off randomly.

How to Test if This Part is the Problem

  1. Check the battery: A weak battery is the most common cause of key fob failure. Replace the battery with a new one and test again.
  2. Try the spare key: If the spare key works, the problem is likely with the original transmitter.
  3. Visually inspect the transmitter: Look for any signs of damage, such as cracks or broken buttons.
  4. Have the transmitter tested: A locksmith or automotive technician can use a special tool to test the transmitter's signal.
  5. Check the vehicle's receiver: Although less common, the problem could be with the car's receiver, not the transmitter.

Common Failure Causes for This Part

  • Dead or weak battery.
  • Physical damage from drops or impacts.
  • Water damage.
  • Normal wear and tear of the buttons and internal components.
  • Signal interference from other devices.
  • Programming issues.

Buyer's Checklist

What to Look for When Buying This Part

  • Correct FCC ID: Make sure the FCC ID on the replacement transmitter matches the one on your original transmitter. This ensures compatibility.
  • Number of Buttons: Verify the replacement transmitter has the same number of buttons as your original.
  • Vehicle Compatibility: Confirm that the transmitter is compatible with your specific year, make, and model of BMW.

Quality Indicators for the Available Options

FeatureUsed OEMRefurbished OEMNew Aftermarket
OriginGenuine BMWGenuine BMWThird-party manufacturer
ConditionUsed, tested, and inspectedRestored with new componentsNew
PriceTypically the lowest priceMid-range priceVaries, can be low to mid-range
ReliabilityCan be excellent if properly testedGenerally reliableCan vary significantly by brand
ProgrammingMay require programmingMay require programmingMay require programming

What's Typically Included with the Part

  • The keyless entry transmitter itself.
  • A new battery may or may not be included.
  • Programming instructions may be included, but professional programming is often required.

Installation Overview

Difficulty Level and Estimated Time

  • Difficulty: Easy to Medium (depending on programming requirements)
  • Estimated Time: 15 minutes to 1 hour (including programming)

Special Tools Needed (if any)

  • Small screwdriver (for battery replacement)
  • Programming tool (if required – often a dealer or locksmith tool)

Critical Steps and Tips

  1. Replace the battery: If the old battery is the issue, this might solve the problem immediately.
  2. Follow programming instructions carefully: If programming is needed, follow the instructions exactly. Incorrect programming can render the transmitter useless.
  3. Test the transmitter: After programming, test all the buttons to ensure they function correctly.

Whether DIY is Recommended or Professional Installation is Better

  • DIY: Battery replacement is easy. If programming is not required, DIY is feasible.
  • Professional Installation: If programming is required, professional installation by a locksmith or dealership is generally recommended, as they have the necessary tools and expertise.

Buying Options

Compare: Used OEM, Refurbished OEM, New Aftermarket

| Option | Pros do NOT make Used OEM sound unreliable 0,000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

Part Specifications

OEM Part Numbers:

  • BMW: 66120397731, 66120413690, 66126954808, 66126986583, 6986583

Fits Years: 2009 2010 2011 2012 2013 2014 2015 2016

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