In warehouse stock
Denso Iridium Spark Plug — IW31
- Six times harder than platinum, iridium withstands temperatures up to 4,000°F
- Because the iridium electrodes of these plugs can be shrunk to only 0.4mm, voltage requirements decrease while firing performance improves
- 360° laser welding of electrode provides a seal that resists wear even in the worst conditions
- Ground electrode features a tapered cut and U-groove that form a large volume area for the flame's center
$23.95
In stock. Ships in 2–4 business days · free shipping over $150.
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Questions? Call the shop: 801-361-3010
Real shop · real humans · 1231 N 1300 W Ste A, Centerville, UT 84014
Description & features4 features
- Six times harder than platinum, iridium withstands temperatures up to 4,000°F
- Because the iridium electrodes of these plugs can be shrunk to only 0.4mm, voltage requirements decrease while firing performance improves
- 360° laser welding of electrode provides a seal that resists wear even in the worst conditions
- Ground electrode features a tapered cut and U-groove that form a large volume area for the flame's center
Specifications18 specs
- Center Electrode Type
- Fine Wire
- Ground Electrode Shape
- Taper Cut, Grooved
- Spark Gap
- 0.030", 0.76 mm
- Electrical Resistance
- 5k Ohms
- Model
- IW31
- Type
- Resistor
- Center Electrode Projection
- Non-Projected
- Electrode Tip Material
- Iridium
- Hex Size
- 20.6 mm
- Style
- Iridium
- Riding Style
- Street
- Terminal Configuration
- Threaded Stud
- Units
- Each
- Heat Range
- 10
- Thread Reach
- 19.1 mm
- Shipping weight
- 0.45 lb
- Package size
- 3.5 × 1.1 × 0.9 in
- Country of origin
- Japan
Part numbers
- Salto part #
- IW31
- Denso part #
- 5319
- UPC
- 042511053199
Shipping
In stock at a distributor warehouse. Ships in 2–4 business days by ground.
Ground shipping is $14.95, free on orders over $150. Stock is re-checked with the warehouse before your card is charged.
Questions4 answers
- Is it in stock?
- Yes — the distributor shows it on a shelf at a regional warehouse right now. We check again the moment you order, before anything is charged.
- How fast will it get to me?
- Usually 2–4 business days by ground.
- Will it fit my machine?
- The distributor doesn’t publish a vehicle fitment list for this part. Call the counter at 801-361-3010 with your year, make and model and we’ll check it with you before you order.
- Is this genuine Denso?
- Yes. It ships new from the same distributors the big online stores buy from — Denso part #5319.