


LS Gen 3/4 - O2 Sensor Wire Adapter - Black/Trapezoid
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
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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Your LS Gen 3/4 - O2 Sensor Wire Adapter - Black/Trapezoid orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.0 ★★★★★
Based on 1926 reviews
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Product Reviews
★★★★★ 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
★★★★★ 5
Worth the money
Size: Medium, Color: Black
Very nice quality
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Reviewed in the United States on June 2, 2026
★★★★★ 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
★★★★★ 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
★★★★★ 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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