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OE Quality
60-Day Returns
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DensoPart #: 234-4118
Denso 234-4118 Oxygen Sensor - Downstream
⚙️ 3 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$110.59Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦OE Style, Downstream
🚗Fitment: Mazda, 5
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Oxygen Sensor options
Denso 234-4118 Oxygen Sensor - Downstream
| Brand | Denso |
| Part Number | 234-4118 |
| Position | OE Style, Downstream |
| Wiring Harness Length | 25.24 |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Connector Gender | Female |
| Thread Diameter | 0.708 |
| Mounting Type | Threaded |
This part fits 3 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2010 | Mazda | 5 | Downstream | OE Style |
| 2009 | Mazda | 5 | Downstream | OE Style |
| 2008 | Mazda | 5 | Downstream | OE Style |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
LF5G18861LF5G18861A
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.