Is the Bosch 15703 worth it?

Yes for a 1996 GM vehicle that needs a direct-fit sensor. At $22.50 at eBay as of November 3, 2026, it costs little more than a universal sensor and saves you from splicing wires.

Will it fit my 1996 GMC or Pontiac?

It fits the listed 1996 applications, including the Silhouette, Amigo and Rodeo with the 5.7L V8, 4.3L V6, 3.8L V6 or 2.2L four-cylinder. Check your engine and sensor position before ordering, since some trucks use more than one sensor.

Do I need a special tool to install it?

A standard 7/8-inch or 22 mm oxygen sensor socket works on the 18 mm threaded body. Soak the old sensor with penetrant first, and use anti-seize on the threads if the new sensor does not come pre-coated.

How many sensors should I buy?

One per sensor position. V6 and V8 trucks often have two or more sensors, so count the locations on your vehicle before ordering.

Oxygen sensors rarely go on deep sale. The $22.50 eBay price as of November 3, 2026 is already near the low end, so waiting is unlikely to save much.

Where is the Bosch 15703 Oxygen Sensor cheapest?

At BoschSparkPlugs, for $28.02, as of our latest check.

What do buyers say about the Bosch 15703 Oxygen Sensor?

Rated 4.8 out of 5 from 165 ratings.

Where can I buy the Bosch 15703 Oxygen Sensor?

15 stores we checked sell it, including BoschSparkPlugs, Partsgeek.com, SparkPlugs.com Family, eBay, UroTuning.

Bosch 15703 Oxygen Sensor

4.8

Best price now

$28.02at BoschSparkPlugsObserved at 3:51 PM

Compared across 4 stores. Prices are checked against each store and labelled with when.

Visit BoschSparkPlugs

Bosch 15703 Oxygen Sensor

4.8

Best price now

$28.02at BoschSparkPlugsObserved at 3:51 PM

Compared across 4 stores. Prices are checked against each store and labelled with when.

Visit BoschSparkPlugs

Ask our shopping agent

Our take on the Bosch 15703 Oxygen Sensor

The Bosch 15703 is a direct-fit oxygen sensor for 1996 GM vehicles, including the Pontiac Silhouette, GMC Amigo and Rodeo, with the 5.7L V8, 4.3L V6, 3.8L V6 or 2.2L four-cylinder. It is a threaded 18 mm sensor with an OE-style connector, so it plugs into the factory harness without splicing. Bosch is the original supplier for many GM oxygen sensors, which makes this a common replacement choice. At $22.50 at eBay as of November 3, 2026, it sits at the low end of what a new direct-fit sensor typically costs.

Best for1996 GM truck and car owners replacing a failed upstream or downstream sensorDIY mechanics who want a plug-and-play OE connectorOwners chasing check-engine codes for lean or slow O2 responseBudget repairs on older GM vehicles

Pros

Direct-fit OE connector, no splicing or universal wiring
Bosch is a common original-equipment supplier for GM sensors
Threaded 18 mm body installs with a standard O2 socket
Works across several 1996 GM engines, so parts coverage is broad
Low price for a name-brand sensor

Cons

Fits only specific 1996 GM applications, not universal
One sensor per box; V6 and V8 trucks often need two or more
No wireless or diagnostic features; it is a plain voltage sensor
Wrong sensor position or a damaged connector can cause repeat codes

Bosch 15703 Oxygen Sensor prices at every store

BoschSparkPlugsNew
In stock
$28.02Observed at 3:51 PM
Visit store
SparkPlugs.com FamilyNew
In stock
$28.02Observed at 3:51 PM
Visit store
Partsgeek.comNew
In stock
$31.31Observed at 3:51 PM
Visit store
eBayNew
In stockSold by aame2023
$36.00Observed at 3:51 PM
Visit store

Also available at

eBayCheck price at eBay
UroTuningCheck price at UroTuning
AutoNationPartsCheck price at AutoNationParts
Summit RacingCheck price at Summit Racing
Advance Auto PartsCheck price at Advance Auto Parts
PartsHawkCheck price at PartsHawk
O'Reilly Auto PartsCheck price at O'Reilly Auto Parts
Newparts.comCheck price at Newparts.com
NAPA Auto PartsCheck price at NAPA Auto Parts
FleetPrideCheck price at FleetPride
CarParts.comCheck price at CarParts.com
CARiD.comCheck price at CARiD.com

Bosch 15703 Oxygen Sensor price history

Lowest price we've seen: $28.02 on Nov 3 at SparkPlugs.com Family. Tracked across 15 stores since Nov 3.

What reviewers say

Owners of older GM vehicles rate this sensor highly, with 4.8 out of 5 from 165 ratings. Most report the connector matches the factory plug and that check-engine codes clear after installation. A few mention fitment confusion on specific models or sensors that failed early.

Pros

Plug matches the factory harness
Clears O2 and lean-condition codes
Easy install with a standard O2 socket
Good value versus dealer parts

Cons

Fitment listings can be confusing for some 1996 models
Occasional early failures reported
Only one sensor included per box

Specifications

Sensor Type: Oxygen sensor
Make: Pontiac, GMC
Model: Silhouette, Amigo, Rodeo
Vehicle Type: Truck, Car
Year: 1996
Engine Type: V8-350 5.7L, 4-2198 2.2L DOHC, V6-262 4.3L, V6-3800 3.8L
Functionality Type: Sensor
Measuring Media: Oxygen
Alarm Functions: No
Instrument Type: Sensor
Part Type: Oxygen Sensor
Application: Engine management
Measurement Accuracy: 100% accurate sensor performance
Measurement Range: 0-1 V (voltage)
Measurement Sensor Type: Oxygen sensor
Number Of Sensors: 1
Thread Size: 18 mm (diameter)
Power Voltage: 12 Volts (maximum supply voltage)
Mounting Type: Threaded
Included Hardware: OE Connector
Ports And Interfaces: OE Connector
Wired Connectivity: Yes
Wireless Connectivity: No

Questions and answers

Is the Bosch 15703 worth it?: Yes for a 1996 GM vehicle that needs a direct-fit sensor. At $22.50 at eBay as of November 3, 2026, it costs little more than a universal sensor and saves you from splicing wires.
Will it fit my 1996 GMC or Pontiac?: It fits the listed 1996 applications, including the Silhouette, Amigo and Rodeo with the 5.7L V8, 4.3L V6, 3.8L V6 or 2.2L four-cylinder. Check your engine and sensor position before ordering, since some trucks use more than one sensor.
Do I need a special tool to install it?: A standard 7/8-inch or 22 mm oxygen sensor socket works on the 18 mm threaded body. Soak the old sensor with penetrant first, and use anti-seize on the threads if the new sensor does not come pre-coated.
How many sensors should I buy?: One per sensor position. V6 and V8 trucks often have two or more sensors, so count the locations on your vehicle before ordering.
When is it cheapest?: Oxygen sensors rarely go on deep sale. The $22.50 eBay price as of November 3, 2026 is already near the low end, so waiting is unlikely to save much.
Where is the Bosch 15703 Oxygen Sensor cheapest?: At BoschSparkPlugs, for $28.02, as of our latest check.
What do buyers say about the Bosch 15703 Oxygen Sensor?: Rated 4.8 out of 5 from 165 ratings.
Where can I buy the Bosch 15703 Oxygen Sensor?: 15 stores we checked sell it, including BoschSparkPlugs, Partsgeek.com, SparkPlugs.com Family, eBay, UroTuning.