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LS Gen 3/4 - O2 Sensor Wire Adapter - Black/Trapezoid

Marsoni M251S
Sale price$32.95
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LS Gen 3/4 - O2 Sensor Wire Adapter - Black/TrapezoidGen 3 Black (1 Keyway) Harness to Gen 4 Trapezoid O2 Sensor Adapter Generation Spanning Adapter for Gen 3 to Gen 4 O2 Sensors Adapts Gen 3 LS oxygen sensor harnesses (black 1 keyway) to work with Gen 4 trapezoid style oxygen sensors. A must have when mixing LS generations in your wiring setup. Converts Gen 3 black harness to Gen 4 trapezoid style O2 sensor Maintains factory grade electrical connection integrity No cutting or splicing required
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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4.0 ★★★★★
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LuAnne Mooney
Lake Worth, US
★★★★★ 5
Great price. Looks great!
Size: Small, Color: Navy Blue
Nice fit, looks great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
A
Verified Purchase
Amazon Customer
Lake Worth, US
★★★★★ 5
Worth the money
Size: Medium, Color: Black
Very nice quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
B
Verified Purchase
Bubba
Dallas, US
★★★★★ 3
Ok
Size: Large, Color: Light Grey
Was decent for the price I originally got a large but top was tight in shoulders so I got an xl and the shoulder width was same as large
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
J
Verified Purchase
Jamie Ruggles
Bozeman, US
★★★★★ 5
Nice quailty vest
The grandsons looked handsome in their uncles wedding. True to size fit perfect. Good quailty
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Reviewed in the United States on February 11, 2026
C
Verified Purchase
Cesar Ambrocio
Bozeman, US
★★★★★ 5
Me gusta
Size: 14 Years, Color: Grey
Me gusta mucho la tela solo quiero saber un saco con este mismo color porfavor
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Reviewed in the United States on April 22, 2026

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