GM Engine Wiring Harness Junction Block
Genuine GM · Part #84303175 · Electrical / Wiring
Genuine GM engine-compartment wiring harness junction block (under-hood power distribution center).
- Part number
- 84303175
- Fits
- Engine-compartment wiring harness junction block (under-hood power distribution center).
- Replaces
232855728400852484008525840085278407150084075768840757768407577784075778843031778430317884303179
- AutoNation price
- $227.5 (as of 2026-07-13)
Fitment note: The parts-catalog fitment shown above is confirmed, but the exact model years aren’t stated on the source listing. Confirm this part fits your specific vehicle with AutoNation Parts before ordering.
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Before you order
- Confirm it fits with your VIN before buying.
- The numbers under “Replaces” are older, superseded numbers — why GM part numbers change.
Details on this page were taken from the live AutoNation Parts listing (https://www.autonationparts.com/parts/gm-engine-wiring-harness-junction-block-84303175) on 2026-07-13. Prices and availability can change — confirm on the retailer’s page before purchase.