234-4042 O2 Oxygen Sensor Downstream For Hyundai Sonata Elantra Excel for Sale


When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Price: $20.98

Universa-V1

234-4042 O2 Oxygen Sensor Downstream For Hyundai Sonata Elantra Excel

Please check fitment notes & description for accurate information.

  • Brand New Oxygen sensor.
  • Interchange Part Number:234-4042
  • Direct Plug-In Replacement
  • Wires: 4
  • Length (Sensor to Lead): 450 mm

  • Please see compatibility chart.
  • Warranty: One year unlimited miles.

Package Includes:

  • 1 x Oxygen Sensor

Must Know Before Buying:

  • The following information is for instructional and guidance reference only. We try and make them as accurate as we can.
  • If Check Engine Light is on or an OBDII Trouble/Fault code occurs after installation, check the sensor with a voltmeter as below. If the sensor is good, further diagnosis is required. There're many different codes for specific functional failures, which are NOT necessarily relevant to the sensor. Find out what the Code means before leaving any feedbacks.
  • Items that have been installed, altered or contaminated are non-returnable.ONLY a defective sensor after tested by a voltmeter is applied to manufacturer warranty.
  • 20% restocking fee is requiredif buyer bought wrong items due to not paying attention to fitment information and ask for return.
  • The Price, Quality & Funcitonality of the O2 Sensor is fully covered under our warranty & return policy. However, refund for any labor cost, expense in a dealer shop or damage due to wrong installation is NOT covered.

Q: How do I know the O2 sensor is good or not? (Online Video)

A: The only way to know if the O2 sensor is functioning normally is to check its responsiveness to changes in the air/fuel mixture, by Voltage Measurement or Waveform Simulation.

Use a 10-megaohm digital voltmeter. Hook up the voltmeter's red probe to the sensor's signal wire and the black probe to engine ground. (Use back probe method, DO NOT pierce the wire.) For a good sensor, voltage should fluctuate constantly between 0.1 and 0.9 volts after starting the engine for 2 or 3 minutes.

Please take a video clip of the voltmeter and contact us if our sensor:

  • Goes above range between 0.1 and 0.9 volt
  • Remains below 0.5 volts
  • Stays fixed at a particular voltage

You're free to choose replacement or refund if our sensor fails to work, in this case.

IMPORTANT Fitment information provided is for reference only. Please make sure to match the exact part numbers between this part and the part that you are replacing. Contact your mechanics, or send us a message to make sure it matches exactly in case of doubt before purchasing. Seller is not responsible if you are buying non-matching parts.

#NotesYear Make ModelTrim / Engine1Only fit: w/ Catalyst in Exhaust Pipe (Under Floor Plan); Position: Downstream Oxygen Sensor; QTY: 12005 Hyundai SonataGL Sedan 4-Door / 2.4L 2351CC l4 GAS DOHC Naturally Aspirated
VE Sedan 4-Door / 2.4L 2351CC l4 GAS DOHC Naturally Aspirated
2Only fit: w/ Catalyst in Exhaust Pipe (Under Floor Plan); Position: Downstream Oxygen Sensor; QTY: 12004 Hyundai SonataBase Sedan 4-Door / 2.4L 2351CC l4 GAS DOHC Naturally Aspirated
GL Sedan 4-Door / 2.4L 2351CC l4 GAS DOHC Naturally Aspirated
3Only fit: w/ Catalyst in Exhaust Pipe (Under Floor Plan); Position: Downstream Oxygen Sensor; QTY: 12003 Hyundai SonataBase Sedan 4-Door / 2.4L 2351CC l4 GAS DOHC Naturally Aspirated
GL Sedan 4-Door / 2.4L 2351CC l4 GAS DOHC Naturally Aspirated
4Only fit: w/ Catalyst in Exhaust Pipe (Under Floor Plan); Position: Downstream Oxygen Sensor; QTY: 12002 Hyundai SonataBase Sedan 4-Door / 2.4L 2351CC l4 GAS DOHC Naturally Aspirated
5Only fit: w/ Catalyst in Exhaust Pipe (Under Floor Plan); Position: Downstream Oxygen Sensor; QTY: 12001 Hyundai SonataBase Sedan 4-Door / 2.4L 2351CC l4 GAS DOHC Naturally Aspirated
6Only fit: w/ Catalyst in Exhaust Pipe (Under Floor Plan); Position: Downstream Oxygen Sensor; QTY: 12000 Hyundai SonataBase Sedan 4-Door / 2.4L 2351CC l4 GAS DOHC Naturally Aspirated
7Only fit: w/ Catalyst in Exhaust Pipe (Under Floor Plan); Position: Downstream Oxygen Sensor; QTY: 11999 Hyundai SonataBase Sedan 4-Door / 2.4L 2351CC l4 GAS DOHC Naturally Aspirated
8Only fit: Exc. Calif.; Position: Downstream Oxygen Sensor; QTY: 1 Required1998 Hyundai SonataBase Sedan 4-Door / 2.0L 1997CC l4 GAS DOHC Naturally Aspirated
GL Sedan 4-Door / 2.0L 1997CC l4 GAS DOHC Naturally Aspirated
9Position: Downstream Oxygen Sensor; QTY: 1 Required1998 Hyundai SonataGL Sedan 4-Door / 3.0L 2972CC V6 GAS SOHC Naturally Aspirated
GLS Sedan 4-Door / 3.0L 2972CC V6 GAS SOHC Naturally Aspirated
10Only fit: Exc. Calif.; Position: Downstream Oxygen Sensor; QTY: 1 Required1997 Hyundai SonataBase Sedan 4-Door / 2.0L 1997CC l4 GAS DOHC Naturally Aspirated
GL Sedan 4-Door / 2.0L 1997CC l4 GAS DOHC Naturally Aspirated
11Position: Downstream Oxygen Sensor; QTY: 1 Required1997 Hyundai SonataGL Sedan 4-Door / 3.0L 2972CC V6 GAS SOHC Naturally Aspirated
GLS Sedan 4-Door / 3.0L 2972CC V6 GAS SOHC Naturally Aspirated
12Only fit: Exc. Calif./Calif.; To 07/01/96; Position: Downstream Oxygen Sensor; QTY: 1 Required1996 Hyundai SonataBase Sedan 4-Door / 2.0L 1997CC l4 GAS DOHC Naturally Aspirated
GL Sedan 4-Door / 2.0L 1997CC l4 GAS DOHC Naturally Aspirated
13Position: Downstream Oxygen Sensor; QTY: 1 Required1996 Hyundai SonataGL Sedan 4-Door / 3.0L 2972CC V6 GAS SOHC Naturally Aspirated
GLS Sedan 4-Door / 3.0L 2972CC V6 GAS SOHC Naturally Aspirated
14Position: Downstream Oxygen Sensor; QTY: 1 Required1995 Hyundai ElantraBase Sedan 4-Door / 1.6L 1596CC l4 GAS DOHC Naturally Aspirated
Base Sedan 4-Door / 1.8L 1836CC l4 GAS DOHC Naturally Aspirated
GL Sedan 4-Door / 1.6L 1596CC l4 GAS DOHC Naturally Aspirated
GL Sedan 4-Door / 1.8L 1836CC l4 GAS Naturally Aspirated
GLS Sedan 4-Door / 1.8L 1836CC l4 GAS DOHC Naturally Aspirated
15Only fit: Calif.; Position: Downstream Oxygen Sensor; QTY: 1 Required1995 Hyundai SonataBase Sedan 4-Door / 2.0L 1997CC l4 GAS DOHC Naturally Aspirated
GL Sedan 4-Door / 2.0L 1997CC l4 GAS DOHC Naturally Aspirated
GL Sedan 4-Door / 3.0L 2972CC V6 GAS SOHC Naturally Aspirated
GLS Sedan 4-Door / 3.0L 2972CC V6 GAS SOHC Naturally Aspirated
16Position: Downstream Oxygen Sensor; QTY: 1 Required1994 Hyundai ElantraBase Sedan 4-Door / 1.6L 1596CC l4 GAS DOHC Naturally Aspirated
Base Sedan 4-Door / 1.8L 1836CC l4 GAS DOHC Naturally Aspirated
GL Sedan 4-Door / 1.6L 1596CC l4 GAS DOHC Naturally Aspirated
GLS Sedan 4-Door / 1.8L 1836CC l4 GAS DOHC Naturally Aspirated
17Position: Downstream Oxygen Sensor; QTY: 1 Required1994 Hyundai ExcelBase Hatchback 3-Door / 1.5L 1468CC l4 GAS SOHC Naturally Aspirated
CX Hatchback 3-Door / 1.5L 1468CC l4 GAS Naturally Aspirated
CXL Hatchback 3-Door / 1.5L 1468CC l4 GAS Naturally Aspirated
GL Sedan 4-Door / 1.5L 1468CC l4 GAS SOHC Naturally Aspirated
GS Hatchback 3-Door / 1.5L 1468CC l4 GAS SOHC Naturally Aspirated
18Only fit: Calif.; Position: Downstream Oxygen Sensor; QTY: 1 Required1994 Hyundai SonataBase Sedan 4-Door / 2.0L 1997CC l4 GAS DOHC Naturally Aspirated
GL Sedan 4-Door / 2.0L 1997CC l4 GAS DOHC Naturally Aspirated
GLS Sedan 4-Door / 2.0L 1997CC l4 GAS DOHC Naturally Aspirated
19Position: Downstream Oxygen Sensor; QTY: 1 Required1994 Mitsubishi PrecisBase Hatchback 2-Door / 1.5L 1468CC l4 GAS SOHC Naturally Aspirated
20Only fit: From 07/01/93; Calif.; Position: Downstream Oxygen Sensor; QTY: 11993 Hyundai ElantraBase Sedan 4-Door / 1.6L 1596CC l4 GAS DOHC Naturally Aspirated
Base Sedan 4-Door / 1.8L 1836CC l4 GAS DOHC Naturally Aspirated
GL Sedan 4-Door / 1.6L 1596CC l4 GAS DOHC Naturally Aspirated
GL Sedan 4-Door / 1.8L 1836CC l4 GAS DOHC Naturally Aspirated
GLS Sedan 4-Door / 1.8L 1836CC l4 GAS DOHC Naturally Aspirated
21Position: Downstream Oxygen Sensor; QTY: 1 Required1993 Hyundai ExcelBase Hatchback 3-Door / 1.5L 1468CC l4 GAS SOHC Naturally Aspirated
Base Sedan 4-Door / 1.5L 1468CC l4 GAS SOHC Naturally Aspirated
CX Hatchback 3-Door / 1.5L 1468CC l4 GAS Naturally Aspirated
CXL Hatchback 3-Door / 1.5L 1468CC l4 GAS Naturally Aspirated
GL Sedan 4-Door / 1.5L 1468CC l4 GAS SOHC Naturally Aspirated
GS Hatchback 3-Door / 1.5L 1468CC l4 GAS SOHC Naturally Aspirated
22Only fit: Calif.; Position: Downstream Oxygen Sensor; QTY: 1 Required1993 Hyundai SonataBase Sedan 4-Door / 2.0L 1997CC l4 GAS DOHC Naturally Aspirated
GL Sedan 4-Door / 2.0L 1997CC l4 GAS DOHC Naturally Aspirated
GLS Sedan 4-Door / 2.0L 1997CC l4 GAS DOHC Naturally Aspirated
23Position: Downstream Oxygen Sensor; QTY: 1 Required1993 Mitsubishi PrecisBase Hatchback 2-Door / 1.5L 1468CC l4 GAS SOHC Naturally Aspirated
24Position: Downstream Oxygen Sensor; QTY: 1 Required1992 Hyundai ExcelBase Hatchback 3-Door / 1.5L 1468CC l4 GAS SOHC Naturally Aspirated
Base Sedan 4-Door / 1.5L 1468CC l4 GAS SOHC Naturally Aspirated
CXL Hatchback 3-Door / 1.5L 1468CC l4 GAS Naturally Aspirated
GL Sedan 4-Door / 1.5L 1468CC l4 GAS SOHC Naturally Aspirated
GS Hatchback 3-Door / 1.5L 1468CC l4 GAS SOHC Naturally Aspirated
L Hatchback 3-Door / 1.5L 1468CC l4 GAS Naturally Aspirated
25Position: Downstream Oxygen Sensor; QTY: 1 Required1992 Mitsubishi PrecisBase Hatchback 2-Door / 1.5L 1468CC l4 GAS SOHC Naturally Aspirated
  • Payment
  • Shipping
  • Return Policy
  • Warranty
  • Contact us

We accept PayPal only. Just take your time to complete payment within 3 days after ordering the item. Also note that An UPI (Un-Paid Item) will be filed if payment is not received after 7 days.

Orders will be shipped within 1 business day from California, USA. Orders with complete payment before 1 pm PST on working day will be shipped the same day.

All packages will be shipped via USPS or FedEX Ground accordingly Domstic 48 states, depending on shipping info for different products. P.O. Boxes, APO/FPO, Alaska, Hawaii, Guam, Puerto Rico and the Virgin Islands are excluded for FedEX Ground.

NOTE: We ship to PayPal confirmed address only. Please update PayPal address before ordering.

14-Day Return and Money Back, minus the restock fee, if any, is acceptable after receiving date. Make sure the items is in the same condition as it was received: Brand New, Never Installed, Not Damaged, No Missing Parts and Good for Resell.

20% restocking fee is also applied if buyers:
- Simply don't want the item, not because of item quality.
- Provide a wrong address & need reshipment. Please double check your shipping address before payment.
- Bought wrong items due to not paying attention to listing information.

Return shipping fee is applied to buyers, unless it's defective or damaged from shipping.

All LEDs are applied to 90-Day Manufacturer Warranty. For other products, please refer to listing page to confirmed warranty.

Just email us if you come across any difficulties. It's highly appreciated if certain informtion, such as YEAR, MAKE, MODEL, TRIM/ENGINE of your vehicle, and Detailed Description of the trouble is provided. We'll sort it out once confirmed.

Our working day: Monday to Friday.



Parts Search:


Follow