Skip to product information
Important: Verify connector shape and pins match your original part.
Downstream O2 Sensor
Fits Mitsubishi Eclipse Galant Montero Sport
Replaces OE: 234-4656, MN158916
Resolves Symptoms
- Check Engine Light (P0420/P0171)
- Rough Idle & Hesitation
- Poor Fuel Economy (MPG)
- Failed Emissions Inspection
Estimated Delivery
Free
Ordered
Oct 30
Prepared
Oct 30-Oct 31
Delivered
Nov 13-Nov 21
Requires overseas shipment. Upgrade to expedited shipping at checkout if urgent.
2-Year Warranty
🛡️ Quality Coverage: Protects against any manufacturing defects for 2 full years.
🔄 Free Replacement: Brand-new replacement for free if quality issues occur.
30-Day Return & Refund
📦 Free Returns: Zero costs to you if the product has quality issues.
💰 Full Refunds: 100% money-back guarantee within 30 days for defective items.
5-Step Fitment Guide
- Check OE: Find original part no. & plug.
- Compare Photos: Match plug with our images.
- Verify YMM: Confirm via fitment tool.
- Review Specs: Check pins & dimensions.
- Purchase: Buy confidently once matched!
Review Rewards
Share an install photo & review to unlock:
- Under $50 Orders: 3% Off Next Order
- $50+ Orders: 5% Direct Cashback
*Email screenshot of your review to support to claim.
Check if your car is compatible
This helps guarantee fitment of parts.
⏳ Loading fitment data...
$29.95
-
No hidden fees: What you see is what you pay.
-
Restore performance: Fix issues and drive with confidence.
Check Engine Light? Find Your Symptoms
🌬️ O2 & A/F Sensors
- P0134No Activity Detected
- P0135Heater Circuit Malfunction
- P0137/38Circuit Low/High Voltage
- P2195Signal Stuck Lean
- P0030/31Heater Control Circuit
⛽ Fuel & Air Mixture
- P0171/74System Too Lean
- P0172System Too Rich
- P2096Post-Catalyst Trim Too Lean
- P0087Fuel Rail Pressure Low
- P0201-04Injector Circuit Open
♻️ Catalytic Converters
- P0420Efficiency Below Threshold (B1)
- P0430Efficiency Below Threshold (B2)
⚡ Ignition / Misfires
- P0300Random Misfire
- P0301-06Cylinder-Specific Misfire
Automotive-Leader Sensors
Vehicle Compatible
|
Year
|
Make
|
Model
|
Engine/Displacement
|
Sensor Position
|
|---|---|---|---|---|
|
2001-2005
|
Chrysler
|
Sebring
|
3.0 V6
|
Downstream
|
|
2001-2005
|
Dodge
|
Stratus
|
3.0L V6
|
Downstream
|
|
1999-2000
|
Mitsubishi
|
Diamante
|
3.5L
|
Downstream Left
|
|
2001-2004
|
Mitsubishi
|
Diamante
|
3.5L
|
Downstream Left
|
|
2000-2005
|
Mitsubishi
|
Eclipse
|
3.0L V6
|
Downstream
|
|
2006-2012
|
Mitsubishi
|
Eclipse
|
3.8L V6
|
Downstream Rear
|
|
1999-2003
|
Mitsubishi
|
Galant
|
3.0L V6
|
Downstream
|
|
2004-2009
|
Mitsubishi
|
Galant
|
3.8L V6
|
Downstream Rear
|
|
1995-1999
|
Mitsubishi
|
Montero
|
All
|
Downstream
|
|
2000-2006
|
Mitsubishi
|
Montero
|
All
|
Downstream Right
|
|
1997-1999
|
Mitsubishi
|
Montero SPORT
|
3.0L V6
|
Upstream Left
|
|
2007-2015
|
Mitsubishi
|
Outlander
|
3.0L V6
|
Downstream Left
|
Product Specifications
Warranty & Support: 2 Years + 24/7 Technical Support
|
Item
|
Specification
|
|---|---|
|
Core Part Number
|
234-4656
Interchange: 1588A147, MR578113, MD315175, MR507387, MD330259, MN163492, MD331887, MN158916, MD333993, MN158759, MD339641, MD365016, MD345230, MD357265, SG888, ES20083, 350-34245, 250-24240, 2133074 |
|
Position
|
Exhaust System, Downstream (Post-Catalytic Converter)
|
|
Key Parameters
|
- Type: Heated Oxygen Sensor
- Wire Configuration: 4-Wire - Connector Gender: Male - Wire Harness Length: 29.53 In. - Thread Diameter: 0.708 In. - Mounting Type: Threaded |
Package Content :
1Pcs 234-4656 Oxygen Sensor