Denso Spark Plug 3478 Fits select: 2011-2014 HYUNDAI SONATA, 2011-2016 KIA OPTIMA
- Brand:
- DENSO
- Model Number:
- 3478
- UPC:
- 042511034785
- EAN:
- 0042511034785
- Walmart SKU:
- 42396188
Trending downward with a $0.00 move to reach $20.04. Current price runs 0.0% below the 90-day average.
| Price Type | Price | Date |
|---|---|---|
|
Highest Price
|
$20.05 | |
|
Lowest Price
|
$14.70 | |
|
Most Recent Price
|
$20.04 |
Tracking History: We have tracked Denso Spark Plug 3478 Fits select: 2011-2014 HYUNDAI SONATA, 2011-2016 KIA OPTIMA since 12/6/2022. The most recent price update was on Jun 29, 2026.
Price Range: Over the past 90 days, the price has ranged from $14.70 (lowest on 11/11/2025) to $20.05 (highest on 3/18/2026). The average price during this period is $18.07.
Current Trend: Walmart.com prices have ranged from $20.04 (Jun 29) to $20.05 (Apr 6) over the past 90 days. Current price is close to the 90-day average of $20.04.
Customer Insights: Rated 5.0/5 from 5 reviews.
OEM parts always make the job easy and right the first time. These plugs made an instant difference in the fuel mileage and were a great price. Saved $40 buying them through Walmart vice the auto parts stores for the exact part we needed.
Perfect fit for my 2011 Sonata SE. Replaced the original DENSO plugs after 125k of reliable service. Idle is smooth and acceleration is strong. Right plugs at a good price.
If you want the best for your car, these are the Best. I'll never try another Sparkplug, Denso Iridium Sparkplugs are what I recommend ‼️‼️
Shopped around for this automotive item and as it turned out Walmart had the best price. Ordered online from Walmart and shipped directly to my house one day ahead of schedule! Very satisfied.
excellent value, perfect fit
Detailed price history for the past 90 days
Walmart.com prices have ranged from $20.04 (Jun 29) to $20.05 (Apr 6) over the past 90 days. Current price is close to the 90-day average of $20.04.
| Date | Price | Change | % Change |
|---|---|---|---|
| $20.04 | $+0.00 | +0.0% | |
| $20.04 | $+0.00 | +0.0% | |
| $20.04 | $+0.00 | +0.0% | |
| $20.04 | $+0.00 | +0.0% | |
| $20.04 | $-0.01 | +0.0% | |
| $20.05 | — | — |