Skip to product information
1 of 4

Diode Dynamics 921 XPR LED Bulb - Red (Single)

Diode Dynamics 921 XPR LED Bulb - Red (Single)

Regular price $59.95
Sale price $59.95 Regular price
Discounts and shipping calculated at checkout.
  • 60 Day No Hassle Returns
  • Fast & Free Shipping
  • Always In Stock Guarantee
Payment methods
  • Amazon
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • USDC
  • Visa
FeaturesIntense red LED illumination.Direct replacement compatible with Scion xB 3rd brake light bulb.Plug and play no modification with factory 921 bulb size.Instant on/off for faster response.OverviewInstant Brake. The factory incandescent 3rd brake light bulb on most vehicles lights up in a glow which takes a moment to turn on. A modern LED upgrade provides instant response which can alert other drivers on the road earlier while also providing a modern LED appearance. This third brake light LED is a great upgrade in both style and function.Quantity. As different trim levels often come equipped with different third brake lights we have listed bulbs individually here. Please double-check on your vehicle and select the quantity needed to replace all of your bulbs.Correct Color. You'll see that we only offer a red color option which is correct to SAE/DOT red" requirements. This provides the most output through the red lens of the 3rd brake light as the red lens acts as a filter only allowing red light through.Brightness. All Diode Dynamics LED lighting is rated with accurate measured lumen figures not calculations or guesses. We test the true output in-house and provide you the real numbers to compare.Reliability. Diode Dynamics LEDs are built with constant-current inductive circuitry along with transient suppression. While more expensive than simple bulbs this allows Diode Dynamics LEDs to last for years with no flickering or failure."
Installation Instructions

DIODD0395S

Shop Safely With Us

Question about this product?

We're happy to help. Send us a message or use our live chat.

Shipping Information

  • Orders are prepared for shipment the same day if received prior to 2 PM EST on business days. Orders received after 2 PM EST will be fulfilled the next business day.
  • Shipping rates are automatically calculated at checkout based on weight, size, location, and carrier availability.
  • We offer free economy ground shipping for the contiguous USA. Expedited shipping options through trusted carriers such as UPS and FedEx are also offered at checkout.
  • High-value orders may require a signature upon delivery. You’ll be notified before shipment if this applies.

Returns, Exchanges and Refunds

  • You have 60 days after delivery to request a return or exchange. Items must be new, uninstalled and in resalable condition.
  • If the return is due to our error, we'll provide a prepaid return label at no cost to you.
  • If the return is due to customer error, you'll be responsible for return shipping costs and a 15% restocking fee may apply.
  • Inspect your package when it arrives and report any shipping damage or missing items within 24 hours of delivery.

Product Warranty

  • If your product issue occurs within 60 days of delivery, and the item is new and uninstalled, start a return through our Return, Exchange and Refund Policy.
  • If your issue occurs after 60 days and the product is covered by a manufacturer warranty, contact the manufacturer directly.
  • If you need assistance, reach out to us, we will guide you through the process.

Payment Information

  • Your payment method is charged when your order is placed. 
  • You may cancel and refund your order at any time by Contacting Us before it ships.
  • If your payment method is declined, your order will not be processed. Please double check your billing details to avoid delays.
  • Refunds are typically processed within 5-7 business days and may take up to 10 business days depending on your financial institution.
  • Some promotional items may not qualify for Buy Now, Pay Later payment options.

EPA, CARB and Disclaimers

  • Certain products are intended for off-road or race use only and may not be legal on public roads.
  • Buyers are responsible for ensuring compliance with all local, state, and federal laws.
  • Products that affect emissions may not be legal in California unless specifically labeled as CARB-exempt.

Items Ineligible for Return

Due to the nature of automotive parts, some items cannot be returned. These include:

  • Custom or special-order products
  • Products marked as "non-returnable" prior to purchase
  • Electronic components (e.g., ECUs, tuners, programmers, controllers, modules, etc)
  • Software
  • Installed or used parts
  • Final sale or clearance items
  • Hazardous materials (e.g., flammable liquids or gases)
  • Coilovers
  • Engine Internals (e.g., pistons, cams, valves, lifters, tensioners, etc) 
  • Turbochargers, Superchargers and Kits
  • Tooling

If you're unsure whether your item is eligible, please Contact Us before ordering.