Home / Denso / 4 Pack Denso 5393 Iridium Power Spark Plugs IWM31
Denso
4 Pack Denso 5393 Iridium Power Spark Plugs IWM31
Part number 5393
$119.77
4-pack · $29.94 each · Free shipping
Free shipping on all orders.
Sold Out
Fast & Secure Shipping
30 Days Moneyback
24/7 Customer Support
100% Satisfaction Guarantee
The Denso 5393 Iridium Power Spark Plug (IWM31) is engineered for high-performance small engines operating under extreme conditions. Featuring a fine-wire iridium electrode and compact M10 thread, it provides exceptional ignitability, stable combustion, and superior resistance to heat and fouling—perfect for motorcycles, kart engines, and performance powersports.
Features & Benefits:
🔧 Fine-wire iridium tip ensures reliable high-RPM ignition
🔧 Cold heat range supports tuned and racing engines
🔧 Compact thread design fits tight cylinder heads
🔧 Pre-gapped and ready for easy installation
Specifications:
Brand & Part Number: Denso 5393 (IWM31)
Material: Iridium
Thread Size: 10mm
Reach: 19mm (0.75 in)
Hex Size: 14mm
Heat Range: 31
Seat Type: Gasket
Resistor: Yes
Gap: 0.6mm (0.024 in)
Count on the Denso IWM31 Iridium Power plug for peak spark performance and lasting engine protection in high-demand applications—order yours today!
Feature Category
Shop By Brand
At TXN Supply, we're driven by a passion for quality and reliability. Whether you're a DIY mechanic, an automotive professional, or just looking for top-notch essentials, we provide premium spark plugs, oil filters, fluids, and more from trusted brands like Champion, NGK, and ACDelco.
Our mission is simple: to deliver high-quality auto parts and everyday must-haves with fast shipping and great prices!
We offer fast, reliable shipping within the USA. Orders are processed quickly and shipped via trusted carriers. Tracking information will be provided. Expedited options may be available at an extra cost. Contact us for any shipping inquiries.
We offer a 30-day return period. Items must be in original condition. Buyer is responsible for return shipping unless the item is defective or incorrect. Refunds are processed once the item is received. Contact us for any return assistance.
Shipping Info
Free shipping on every US order. In-stock parts typically ship within 1 business day from Texas.
Returns
30-day returns on unused parts in original packaging. Wrong or defective items are replaced or refunded. See the return policy.
How do I confirm this part fits?
Match the brand and part number to your vehicle, or use the Parts Finder on the homepage. Contact us before ordering if you are unsure.
Are these parts new?
Yes. TXN Supply Co sells new parts from trusted OEM-quality brands — not remanufactured cores.
How fast will my order ship?
In-stock orders ship within 1 business day. Delivery time depends on your ZIP; most US addresses arrive in 2–5 business days.
What is your return policy?
Unused items can be returned within 30 days in original packaging. Customer-initiated returns may include a restocking fee and return shipping.
