Is the upstream for 2003 chevy silverado 1500 5.3 the same part # as the downstream?

they are diffrent in design yes the 2 upstream are bank 1 sensor 1 & 2 downstream are bank 2 sensor 1 & 2

I've seen this described as a "male connector".. but isn't that a female? It looks like something goes IN the white part??

No this is consider a male connector.

Does it have the connector already on the wires?

Yes. The plug is already spliced in just like a factory unit. Completely plug and play install.

I have a 03 silverado. i wanna replace all 4 o2 sensors. guy at autozone said i need 3 of this part number and the center ones different?

My 05 5.3 Silverado called for all four of them to be this part number. I installed them and everything has worked perfectly since!

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BOSCH 15284 Premium OE Fitment Oxygen Sensor - Single

BOSCH 15284 Premium OE Fitment Oxygen Sensor - Single

Product ID: 4047778

Details

Brand
Bosch
Item Weight
2.4 ounces
Item dimensions L x W x H
2.2 x 1.97 x
Material
Stainless
Style
Oxygen Sensor

⚡2 sec fast heater response

🔩Double laser-welded stainless steel body

🧪100% factory tested for quality

$81.22

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Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚗 Upgrade your ride with Bosch precision — because your engine deserves the best!

BUILT TO LAST - Robust double laser-welded stainless steel body resists exhaust damage and corrosion.
ECO ENGINE FRIENDLY - Maintains engine health, reduces emissions, and improves fuel efficiency—don’t get left behind.
PLUG PLAY SIMPLICITY - True OE direct-fit connectors and pre-coated threads make installation effortless.
RAPID HEAT UP TECHNOLOGY - Heats to optimal operating temperature in just 2 seconds for instant performance.
PRECISION ENGINEERED RELIABILITY - Decades of Bosch innovation ensure unmatched sensor accuracy and durability.

The BOSCH 15284 Premium OE Fitment Oxygen Sensor is a factory-tested, high-accuracy sensor designed for select 2003-06 Buick, Cadillac, Chevrolet, GMC, and Isuzu vehicles. Featuring a fast-acting heater that reaches operating temperature in 2 seconds and a durable double laser-welded stainless steel body, it ensures long-lasting performance and easy installation with true OE direct-fit connectors. This sensor optimizes engine efficiency, reduces harmful emissions, and supports vehicle longevity.

Specifications

ASIN	B000CF3VVS
Best Sellers Rank	#28,199 in Automotive ( See Top 100 in Automotive ) #18 in Automotive Replacement Oxygen Sensors
Brand Name	Bosch
Customer Reviews	4.6 4.6 out of 5 stars (555)
Global Trade Identification Number	00028851152846
Included Components	Oxygen Sensor
Item Dimensions	2.2 x 1.97 x 5.83 inches
Item Type Name	Oxygen Sensor
Item Weight	2.4 ounces
Manufacturer	BOSCH
Material Type	Stainless Steel
Maximum Supply Voltage	5 volts
Measurement Accuracy	High Accuracy
Measuring Range	4.5 - 5.5 V
Model	F00HL00111
Mounting Type	Flange Mount
Number of Items	1
Output Type	NPN
Part Number	15284
Response Time	2 seconds
Specific Uses For Product	Temperature
Style Name	Oxygen Sensor
UPC	028851152846
Unit Count	1 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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$81.22

Duties & taxes included

In stock

Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Ecuador.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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I loved the variety of products available. Will definitely shop again.

2 months ago

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Great price for an authentic product. Fast international shipping too!

3 weeks ago

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