4pcs Up & Downstream O2 Oxygen Sensor for 2000-2002 GMC Yukon 5.3L
4pcs Up & Downstream O2 Oxygen Sensor for 2000-2002 GMC Yukon 5.3L is a complete sensor kit that replaces both upstream and downstream oxygen sensors, ensuring accurate fuel mixture monitoring. Priced at $61.18, it’s ideal for restoring engine performance and emissions compliance on this generation Yukon.
● In stock
Buy at Lab Work Auto →Price and availability may change. Click to see current details on Lab Work Auto.
Key features
- Complete kit with two upstream and two downstream sensors.
- OEM-matched thread size and connector for direct fit.
- Stainless-steel housing resists corrosion and heat.
- Fast response element reacts in milliseconds.
- Heat-shield compatible for factory durability.
- High-temperature insulated wiring reduces breakage risk.
Pros
- +Restores fuel economy and emissions compliance.
- +Easy DIY installation with standard tools.
- +Durable stainless-steel construction.
Cons
- −May require torque wrench for proper tightening.
- −Heat-shield removal adds a small extra step.
About 4pcs Up & Downstream O2 Oxygen Sensor for 2000-2002 GMC Yukon 5.3L
What is 4pcs Up & Downstream O2 Oxygen Sensor for 2000-2002 GMC Yukon 5.3L?
This four-sensor kit replaces the original upstream and downstream oxygen sensors on the 2000-2002 GMC Yukon equipped with the 5.3-liter V8. The sensors monitor exhaust oxygen levels, allowing the engine control module to fine-tune fuel delivery for optimal power, fuel economy and emissions compliance.
Accurate oxygen sensing is critical for modern gasoline engines because it directly influences the air-fuel ratio, which determines combustion efficiency and emissions output.
Key features
- Complete kit — includes two upstream and two downstream sensors for full system renewal.
- Direct fit — engineered to match OEM thread size and connector layout for the specified model year.
- Stainless-steel housing — resists corrosion and heat-induced warping.
- Fast response time — sensor element reacts within milliseconds to changes in exhaust oxygen.
- Heat-shield compatible — designed to work with factory heat shields for durability.
- Durable wiring — high-temperature insulated leads reduce risk of breakage.
Proper installation ensures the sensor seals correctly and avoids exhaust leaks. Begin by removing the old sensor with a dedicated O2-sensor socket, clean the threads with a brass brush, and reinstall the new unit hand-tightened before applying a torque of 30-35 Nm. Reconnect the wiring harness, replace any heat shield, and clear fault codes with a scan tool.
Who is 4pcs Up & Downstream O2 Oxygen Sensor for 2000-2002 GMC Yukon 5.3L for?
DIY enthusiasts, independent mechanics, and fleet service shops that maintain mid-2000s Yukon trucks will benefit. It is especially useful when the check-engine light is triggered by O2-sensor codes, when fuel mileage drops, or when the catalytic converter shows premature wear.
How does 4pcs Up & Downstream O2 Oxygen Sensor for 2000-2002 GMC Yukon 5.3L compare?
Compared with generic aftermarket sensors, this kit offers OEM-matching thread pitch and connector pinout, which reduces installation errors. While premium OEM single-sensor replacements cost more per unit, the four-sensor set balances cost and fit, delivering reliable performance for the Yukon’s V8 engine.
When the new sensors are active, drivers typically notice smoother idle, restored throttle response, and a measurable improvement in miles-per-gallon. The engine control module can also keep the catalytic converter within temperature limits, extending its service life.
Best use cases
- →Replacing failed O2 sensors after check-engine light.
- →Improving mileage on high-mileage Yukon trucks.
- →Preventing catalytic converter damage.
- →Preparing a vehicle for emissions inspection.
Is 4pcs Up & Downstream O2 Oxygen Sensor for 2000-2002 GMC Yukon 5.3L right for you?
Buy this sensor kit if you own a 2000-2002 GMC Yukon with the 5.3 L V8 and need to replace both upstream and downstream O2 sensors. The kit is suited for DIYers comfortable using basic hand tools and a socket set; a torque wrench is recommended for final tightening. Compared with single-sensor replacements, the four-piece set saves time and ensures matching performance. If you prefer OEM-branded parts, consider a single-sensor OEM replacement, but the kit offers the best value for full system renewal.
How it compares: Compared with generic aftermarket O2 sensors, this kit provides OEM-matched threads and connectors, reducing installation errors. Premium OEM single-sensor replacements cost more per unit, while universal sensors may require rewiring. The four-sensor set balances cost and fit, delivering reliable performance for the Yukon’s V8 engine.
More from Lab Work Auto
#63P-81950-00-00 TRIM RELAY For YAMAHA OUTBOARD F150 & 250 Part
$17.80
(4 pcs) For Ford F-150 Bed Interface Plates Standard Tie Down FL3Z9928408AB
$16.82
-6 An X 5/16-24 O Ring Hydroboost Spittier/Return Port Fitting Car Accessories
$8.20
-6AN AN6 Fuel Adapter Fitting to 3/8 Quick Connect LS W/ Clip Female Black GM
$7.91Frequently Asked Questions
What are the symptoms of a failing O2 sensor on a Yukon?
▾
Typical signs include a persistent check-engine light, rough idle, reduced fuel mileage, and a noticeable drop in engine power. You may also notice a sulfur-like odor from the exhaust or increased emissions during an inspection. In severe cases the catalytic converter can overheat, leading to costly repairs.
Does the kit include heat shields?
▾
The kit supplies the sensors only; any factory heat shields must be reinstalled from the vehicle. If your original shields are damaged, you will need to purchase them separately. The sensors are designed to work with the existing shields without modification.
How do I install the sensors correctly?
▾
Start by disconnecting the battery and locating the sensor threads. Use an O2-sensor socket to unscrew the old unit, clean the threads with a brass brush, and apply a thin layer of anti-seize compound. Hand-tighten the new sensor, then torque to 30-35 Nm, reconnect the wiring, and clear any fault codes.
Is this sensor kit compatible with other GM models?
▾
The sensors are sized for the 2000-2002 GMC Yukon 5.3 L V8, which shares the same O2-sensor specifications as many Chevrolet Silverado and GMC Sierra trucks from the same era. However, always verify the part number against your vehicle’s service manual before purchase.
Can I use this kit on a diesel engine?
▾
No. Oxygen sensors for gasoline engines are calibrated for the richer air-fuel mixture typical of spark-ignited powerplants. Diesel engines use different sensor types and heating requirements, so this kit is not suitable for diesel-powered Yukons or other diesel vehicles applications.
How much does 4pcs Up & Downstream O2 Oxygen Sensor for 2000-2002 GMC Yukon 5.3L cost?
▾
4pcs Up & Downstream O2 Oxygen Sensor for 2000-2002 GMC Yukon 5.3L is $61.18 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.
Is 4pcs Up & Downstream O2 Oxygen Sensor for 2000-2002 GMC Yukon 5.3L in stock at Lab Work Auto?
▾
Yes, 4pcs Up & Downstream O2 Oxygen Sensor for 2000-2002 GMC Yukon 5.3L is currently in stock at Lab Work Auto.
Specifications
- SKU
- F8-018241