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2021 Tahoe Suburban Yukon Escalade Engine Wiring Harness Junction Block OEM

$ 140.51
🏁 Please confirm this part fits your vehicle before ordering
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100% Genuine OEM Factory original part
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This is a genuine OEM GM Engine Wiring Harness Junction Block, also known as a Fuse & Relay Box, designed for the 2021 Chevrolet Tahoe, 2021 Chevrolet Suburban, 2021 GMC Yukon, and 2021 Cadillac Escalade. It serves as the central junction point for engine wiring harness connections and is a direct replacement for the factory unit.

This part is a genuine GM OEM component, backed by GM's factory warranty and guaranteed to meet original factory specifications. It fits 6-cylinder 3.0L Diesel, 8-cylinder 5.3L, and 8-cylinder 6.2L engine applications across compatible vehicles. Please note that only the junction block assembly itself is included — refer to your vehicle's diagram and confirm Part Reference #1 is the component you need before purchasing.

Quick Part Facts

  • Condition: New, Genuine OEM GM
  • Part Type: Engine Wiring Harness Junction Block / Fuse & Relay Box
  • Fitment Type: Direct Replacement
  • Compatible Engines: 3.0L 6-Cyl Diesel, 5.3L 8-Cyl, 6.2L 8-Cyl
  • Included: Junction Block Assembly only (Part Reference #1 on diagram)
  • Warranty: 1 Year

Fitment

Year Range Make Model Trim/Engine Notes/Options
2021 Chevrolet Tahoe 8 Cyl 5.3L, 8 Cyl 6.2L 4 Door 1/2 Ton
2021 Chevrolet Suburban 8 Cyl 5.3L, 8 Cyl 6.2L 1/2 Ton
2021 GMC Yukon 6 Cyl 3.0L Diesel, 8 Cyl 5.3L, 8 Cyl 6.2L 1/2 Ton; Yukon/Denali
2021 Cadillac Escalade 6 Cyl 3.0L Diesel, 8 Cyl 6.2L 1/2 Ton; Escalade/Escalade ESV

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