BaySheet
Opening the sheet…
BaySheet
Opening the sheet…
2020 Chevrolet Silverado 1500
2020 Silverado driver and passenger wiper blades are both 55 cm (21.7 in), GM part 84578275. No ACDelco number is printed.
Difficulty, time, and cost are estimates when this guide gives them. Torque is a cited figure, or it is left off.
Main source: 2020 Chevrolet Silverado Owner Manual, GMNA-Localizing-U.S./Canada/Mexico-13337620, CTC 1/27/20, maintenance replacement parts (opens in a new tab), General Motors, published 2020-01-27, read 2026-10-15.
Numbers on this page come from the cited source. Match the engine before you use a capacity or a torque. Do not work under a vehicle held only by a jack.
GM 84578275 wiper blade
The maintenance text says trained dealer technicians can check the blades and replace them. It does not print a release procedure.
| Item | Figure | Where it comes from |
|---|---|---|
| Driver side | 55 cm (21.7 in). GM part 84578275. The ACDelco column is blank. | Maintenance replacement parts, wiper blades |
| Passenger side | 55 cm (21.7 in). GM part 84578275. The ACDelco column is blank. | Maintenance replacement parts, wiper blades |
Both maintenance-parts rows print 55 cm (21.7 in) and GM part 84578275. The ACDelco part-number cells are blank, so no ACDelco number is added.
The wiper paragraph says the blades need to be cleaned and kept in good condition, and that dealer technicians can check and replace them. It does not print a clip or arm procedure.
This length is from the 2020 gasoline maintenance-parts table. A diesel supplement is a different book, and this page does not copy a blade length from it.
Outbound links only. BaySheet does not sell parts. Confirm fitment on the retailer page. Amazon links are searches for the part name plus this vehicle. They are not a part number.
Part
Front wiper blade, either side
Both rows print 55 cm (21.7 in) and GM 84578275.
Wiper part number in the 2020 Silverado owner's manual (opens in a new tab)Search Amazon.com (affiliate link) (opens in a new tab)
Tool
GM 84578275 wiper blade
The maintenance text says trained dealer technicians can check the blades and replace them. It does not print a release procedure.
Wiper blade sizes in the 2020 Silverado owner's manual (opens in a new tab)Search Amazon.com (affiliate link) (opens in a new tab)
The maintenance checklist is on the site now. The email list is not sending yet, so this box will not store an address.
These guides cover the same kind of work. Their numbers belong to those vehicles, not to this one.