Street. Track. Everything between.
07 3276 7829
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

Diode Dynamics 921 XPR LED Bulb - Cool - White Four

SKU: DIODD0394Q

Light Bulbs

DIO Replacement Bulbs...

Diode Dynamics 921 XPR LED Bulb - Cool - White Four

SKU: DIODD0394Q

Light Bulbs

DIO Replacement Bulbs...

A$427.36
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.

Added to cart

We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

Factory Bulb Repl.

FeaturesBrighter cool white LED outputDirect replacement compatible with Ford Mustang GT reverse light bulbPlug and play no modification with factory 921 bulb sizeImproved visibility behind vehicleAvailable in multiple brightness levelsOverviewBrighter Backup. These replacement LED bulbs are a great way to improve the look and function of the reverse lights on your vehicle. You will get higher visibility at night with a modern look. The installation is straightforward with just a bulb swap - making this one of the easiest ways to improve your vehicle’s lighting.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.Colors that match. At Diode Dynamics we test each batch of products to ensure that all bulbs will match in color and avoid various tints of white. These bulbs will match any other upgrades you may have from Diode Dynamics for factory-style uniformity and a clean appearance.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.Experience. After over a decade in business Diode Dynamics is one of the most trusted names in automotive LED lighting. We directly assemble and engineer our own products in the United States allowing for higher quality and performance with the newest and brightest LED technology. We pride ourselves in offering only the best possible LED solutions.

Additional Information

These replacement LED bulbs are a great way to improve the look and function of the reverse lights on your vehicle. You will get higher visibility at night with a modern look.

Product Overview

FeaturesBrighter cool white LED outputDirect replacement compatible with Ford Mustang GT reverse light bulbPlug and play no modification with factory 921 bulb sizeImproved visibility behind vehicleAvailable in multiple brightness levelsOverviewBrighter Backup. These replacement LED bulbs are a great way to improve the look and function of the reverse lights on your vehicle. You will get higher visibility at night with a modern look. The installation is straightforward with just a bulb swap - making this one of the easiest ways to improve your vehicle’s lighting.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.Colors that match. At Diode Dynamics we test each batch of products to ensure that all bulbs will match in color and avoid various tints of white. These bulbs will match any other upgrades you may have from Diode Dynamics for factory-style uniformity and a clean appearance.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.Experience. After over a decade in business Diode Dynamics is one of the most trusted names in automotive LED lighting. We directly assemble and engineer our own products in the United States allowing for higher quality and performance with the newest and brightest LED technology. We pride ourselves in offering only the best possible LED solutions.


Data: v2 - Desc: v4.2 - Upd: 2026-11-07 19:59:06

Data: v4.2 - Upd: 2026-11-09 19:40:39

Features

  • Direct replacement for your factory bulb
  • Increased output with LED Appearance
  • Molded construction with sturdy double terminals
  • Plug and play simple installation

Note for Australian & European Markets

This product is designed and tested for the US domestic market, and certain features may not be compatible with or compliant to regulations in other countries. For example, some lighting products may need modification to meet transportation standards or may not comply with local laws. References to SAE and DOT refer to US standards & requirements and may not be directly comparable to Australian requirements. For vehicles outside North America, lights may require modification by an auto electrician. Wiring, lamp colour, beam pattern, connectors, or relays may differ from those used in some North American models. Please review all images and descriptions carefully to ensure this product suits your requirements. Returns are not accepted for special-order products.

(keyword: led)

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

Description:Direct replacement for your factory bulb.
Input Power (watts):5.4
Measured Output (lumens):1600 lumens (initial output) 720 lumens (stable output)
Operating Voltag:9-16V
Operating temperature:-40C to 85C (-40F to 185F)
Part Number:dioDD0394Q
Voltage:9-16V

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Diode Dynamics, Diode Dynamics Llc
StreetFX SKU dioDD0394Q
SFX Item ID 4186564
Accounting SKU dio-DD0394Q
Manufacturer SKU DD0394Q
Manufacturer UPC 691026121826
Alternative References DOD-DD0394Q, DODDD0394Q

921 XPR LED Bulb Cool White Four Diode Dynamics

Product Attributes
BrandDiode Dynamics
Manufacturer's Part NumberDD0394Q
Part TypeLight Bulbs
UPC00691026121826

Compatibility

Loading compatibility information...

Keep shopping

More from Diode Dynamics