GM Emission Reduction Fluid Supply Pump Module
Genuine GM · Part #84545446 · Engine / Diesel Emissions
Genuine GM (formerly ACDelco OE) diesel exhaust fluid (DEF) supply pump module.
- Part number
- 84545446
- Fits
- 2017-2020 Chevrolet Silverado & GMC Sierra 2500 HD / 3500 HD (6.6L Duramax diesel); DEF supply pump module.
- AutoNation price
- $633.38 (as of 2026-07-13)
Shop this part at AutoNation Parts →
Before you order
- Confirm it fits with your VIN before buying.
Details on this page were taken from the live AutoNation Parts listing (https://www.autonationparts.com/parts/acdelco-emission-reduction-fluid-supply-pump-module-84545446) on 2026-07-13. Prices and availability can change — confirm on the retailer’s page before purchase. Vehicle fitment was cross-checked against PartsGeek(https://www.partsgeek.com/ss/?i=1&ssq=84545446).