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Exhaust› Headers, Manifolds and Components

Speed Engineering

O2 Sensor Extension Harness

$44.95 $39.99 Save $4.96

SKU: 31-1037

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Speed Engineering O2 Harness Extension Kit is designed for 2019+ GM Truck and SUV models. It is compatible with 5.3L and 6.2L engines, including L82, L84, and L87 variants. This kit fits 2021-2025 Cadillac Escalade, 2021-2025 Chevrolet Tahoe, 2019-2025 Chevrolet Silverado 1500, 2019-2025 GMC Sierra 1500, and 2021-2025 GMC Yukon models.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSpeed Engineering
Part Number31-1037
CategoryExhaust

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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