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Home / 1 Pack Denso 5346 Iridium Power Spark Plug IKH24

1 Pack Denso 5346 Iridium Power Spark Plug IKH24

$28.77

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The Denso 5346 Iridium Power Spark Plug (IKH24) is built for extreme performance and precision, offering reliable ignition under the most demanding engine conditions. With a fine-wire iridium center electrode and tapered ground electrode, it provides superior spark efficiency, enhanced combustion, and longer service life. Ideal for turbocharged, racing, or modified engines that demand a colder heat range.

Features & Benefits:

🔧 Fine-wire iridium center electrode ensures consistent spark
🔧 Cold heat range supports high-performance engine tuning
🔧 Tapered ground electrode improves flame spread and efficiency
🔧 Pre-gapped for fast and accurate installation

Specifications:

Brand & Part Number: Denso 5346 (IKH24)
Material: Iridium
Thread Size: 14mm
Reach: 25mm (0.98 in)
Hex Size: 16mm
Heat Range: 24
Seat Type: Gasket
Resistor: Yes
Gap: 0.8mm (0.031 in)

Unleash your engine’s true potential with Denso Iridium Power—choose IKH24 for consistent performance and power!

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.