📱 Call Us

FREE SHIPPING ON MOST ORDERS $2,000+. Parts questions? Call or text 908-223-9744.
1 4
Diode Dynamics

Diode Dynamics 921 XPR LED Bulb - Cool - White (Pair)

4.7 store rating · 600 reviews
SKU: DIODD0394P

Fits 2013–2022 Acura ILX, 2001–2013 Acura MDX and more

All 357 applications
$120.99
Ask us about availability. Call or text 908-223-9744 and we will get it or find you the right alternative.
  • Authorized dealerGenuine Diode Dynamics parts, sourced direct
  • 30-day returnsSee the return policy
  • Diesel techs on the line908-223-9744, call or text
  • Secure checkoutAmerican Express Apple Pay Diners ClubDiscoverGoogle Pay Mastercard PayPal

Features Direct replacement for factory incandescent 921-size bulb. 16 high-power LEDs arranged on all four sides. Fully metal heatsinking for maximum output. Inductive constant-current drive circuit. Increased output with LED Appearance. Plug and play, simple installation. 720 lumens per bulb. Overview Upgrade. Add more light output and a modern appearance to your vehicle with the 921 XPR bulb. Each of the four sides of this bulb is populated with 4 high power LED chips for maximum brightness. Housed in an aluminum casing with a textured finish for superior heatsinking properties, the XPR will last for years to come. Best of all, installation only takes minutes - simply take out your factory bulb and the XPR will fit snugly in the socket. Brightness. At 720 lumens, the XPR will provide significantly more light output than your factory bulb. 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. This bulb is built with constant-current circuitry, along with transient suppression. That means this bulb will last for years, not months, with no flickering or failure. And like every Diode Dynamics product, it's backed by an industry-leading three-year replacement warranty. Experience. After over a decade in business, Diode Dynamics is the most trusted name in automotive LED lighting. We assemble and engineer products ourselves in the United States, for high quality and fast time-to-market of the newest and brightest LED technologies. We pride ourselves in offering only quality LED products that will exceed your expectations. Please contact us if you'd like to discuss your lighting project!

Installation Instructions
  • Sixteen high-power LEDs arranged on all four sides.
  • Molded construction with sturdy double terminals
  • Direct replacement for your factory bulb
  • Plug and play no modification needed.
  • Increased output with LED appearance.
  • Increased output with LED Appearance
  • Plug and play simple installation

Reviews

What customers say

Verified reviews collected by Loox from real orders.

Good to know

Questions, answered straight.

If it is not here, call or text the counter. Real people, real answers.

Fitment

  • Will this fit my truck?

    The Fits section at the top of the page lists the manufacturer's applications for this exact part. If your year, make and model is not there, or you are not sure, text us a photo of what you are replacing with your year and engine and we will confirm it before you order.

  • What if I order the wrong part?

    Call or text us before it ships and we will swap it. After delivery you have 30 days to return it in new, uninstalled condition. The return policy has the restocking details.

Shipping

  • When will it ship?

    In-stock parts usually ship within 1 to 2 business days from warehouses across the USA. The stock line under the options tells you the status of the part you are looking at. Large items ship LTL freight and we call to schedule delivery.

  • Why did I only get part of my order?

    We ship from multiple warehouses, so an order with several items can arrive in more than one box. Tracking for each shipment is emailed as it goes out. Full details in the shipping policy.

Returns and warranty

  • What is the return policy?

    30 days from delivery, in new and uninstalled condition, with a restocking fee. Everything is spelled out in the Returns & Refund Policy.

  • How do warranty claims work?

    We are an authorized dealer, so the manufacturer's warranty applies to every part we sell. Call or text us with your order number and we handle the claim with the brand for you.

Paying

  • Can I pay over time?

    Yes. Shop Pay installments are offered at checkout on qualifying orders, and the monthly estimate shows right under the price.

  • What is a core deposit?

    Some remanufactured parts, like injectors and turbos, carry a refundable core deposit. It is shown on the product page when it applies and refunded when your old part comes back to us.

Same brand

More from Diode Dynamics

Shop all 154 Diode Dynamics parts

From the FSD shop

More for Chevy/GMC trucks

Everything for Chevy/GMC

Why buy here

A diesel shop that sells parts, not a website that sells boxes.

Every part on this site is one our own techs can stand behind.

  • We run what we sell

    A working diesel repair and fabrication shop in Nazareth, PA. These are the parts our techs install every week.

  • Real techs on the phone

    Call or text 908-223-9744 and you get a diesel tech, not a script.

  • Authorized dealer

    Genuine parts straight from the manufacturer, with the factory warranty behind them.

  • Fast from stock

    Most in-stock parts ship in 1 to 2 business days from warehouses across the USA.

The shop floor
The shop floor
In-house fabrication
In-house fabrication
Engine work
Engine work

Authorized dealer for 140+ brands

All brands
  • 7+ Years in business
  • 6+ Shop technicians
  • 30,000+ In-stock SKUs
  • 25+ Trucks given away
FSD shop interior - trucks on lifts The shop floor, Nazareth, PA

Full Send Diesel, Nazareth, PA

A team of diesel people, not a call center.

Full Send Diesel is a shop full of techs, builders and parts people in Nazareth, Pennsylvania. When you call or text, you reach someone who works on these trucks and knows the parts.

Not sure what you need? Send a photo of what you are replacing with your year and engine. We will point you to the right part, confirm it is in stock, and get it moving.

Call 908-223-9744 Text us Email

Mon–Fri, 8am–4pm ET. After hours, text or email and we answer first thing in the morning.

⌕