What type of wiper blade should I buy for the 2021 GMC Acadia?

Conventional, beam (frameless), and hybrid blades are all available for the 2021 GMC Acadia (24" driver, 20" passenger — a staggered pair). Treat conventional, beam, and hybrid as product styles, not fitment proof. For the 2021 GMC Acadia, keep the checked lengths above and confirm the 9 X 3 Hook adapter is included; length alone is not enough.

Does the 2021 GMC Acadia have a rear wiper blade?

Yes. The 2021 GMC Acadia uses a 10" rear wiper blade. Confirm the size in the retailer's selector before ordering.

When should I replace the wiper blades on the 2021 GMC Acadia?

Replacement timing is not vehicle-specific on this page. Replace when blades streak, chatter, crack, tear, or harden; use the checked positions above and confirm the connector or adapter at checkout.

2021 GMC Acadia wiper blade size

The 2021 GMC Acadia uses a 24" driver-side wiper blade, a 20" passenger-side blade, and a 10" rear wiper blade with 9 X 3 Hook connectors. Supported by 6 checked sources.

Driver 24"

Passenger 20"

Rear 10"

Connector 9 X 3 Hook

Blade sizes: Verified Connector: Verified Last verified: 2026-06-12 Primary source: WiperSizeChart

Front sizes confirmed unchanged across 9 model years (2017–2025).

Size changed at this generation boundary: Checked records show 24" driver / 21" passenger for 2010–2016 — different from this 2021 page. Confirm this is the correct model year before ordering.

Driver blade is 4" longer than passenger blade (24" vs 20").

Check retailer search paths View sources

Conventional, beam, or hybrid — which type should I buy? →

Bosch ICON Beam

Driver 24" → Passenger 20" →

Rain-X Latitude Water Repellency

Driver 24" → Passenger 20" →

Trico Tech Beam

Driver 24" → Passenger 20" →

Search shortcuts only — confirm blade length, vehicle selector fitment, and adapter before ordering.

2021 GMC Acadia wiper blade size chart

Item	Size	Notes
Driver	24"	Driver-side wiper blade
Passenger	20"	Passenger-side wiper blade
Rear	10"	Rear wiper blade
Connector	9 X 3 Hook	Checked connector / arm type

Retailer searches:

Walmart → AutoZone → Amazon → O'Reilly →

GMC Acadia wiper blade sizes by year

16 checked GMC Acadia years. Same front blade sizes for 2017–2025 in checked records. Confirm the exact year before ordering.

Year	Driver	Passenger	Rear	Connector
2025 Size changed	24"	20"	10"	9 X 3 Hook
2024 Size changed	24"	20"	Unverified	9 X 3 Hook
2023	24"	20"	10"	9 X 3 Hook
2022	24"	20"	10"	9 X 3 Hook
2021 Current page	24"	20"	10"	9 X 3 Hook
2020	24"	20"	10"	9 X 3 Hook
2019	24"	20"	10"	9 X 3 Hook
2018	24"	20"	10"	9 X 3 Hook
2017 Size changed	24"	20"	10"	9 X 3 Hook
2016	24"	21"	12"	I&L
2015	24"	21"	12"	I&L
2014	24"	21"	12"	I&L
2013 Size changed	24"	21"	12"	I&L
2012	24"	21"	10"	I&L
2011	24"	21"	10"	Push Button (22mm)
2010	24"	21"	10"	Push Button (22mm)

Year-specific context

2021 sits between 2022 and 2020 in this Acadia year table. It is the fifth-newest listed Acadia row in this table. For this Acadia, compare the fifth-newest row with the fourth-newest row above and the sixth-newest row below before checkout. Same visible pattern: 2025, 2023, 2022, 2020, 2019, 2018, 2017. Compare the exact year row before ordering.

2021 GMC Acadia fitment notes

Connector type: 9 X 3 Hook

9 X 3 Hook connector confirmed. Confirm the package includes that adapter.

Verify before checkout

If a retailer shows different sizes, compare source dates before ordering.

Vehicle-specific evidence notes

Front pair

This row uses a staggered front pair: 24" driver, 20" passenger.

Rear position

Rear: 10", supported by Rain-X.

Source coverage

Source table: 6 checked source rows. Driver: 2 source labels; passenger: 2 source labels.

Connector evidence

Connector: 9 X 3 Hook, checked.

Before ordering for this 2021 GMC Acadia

Checkout verification checklist

Front pair: Choose 24" driver and 20" passenger.
Rear blade: Select a 10" rear blade.
Connector: 9 X 3 Hook. Confirm the package includes this adapter.
Source check: 2026-06-12 from WiperSizeChart.

About this data

How we verify fitment

Checked fitment data. Last verified: 2026-06-12.

This page-specific source pack checked WiperSizeChart. Driver: Supported by WiperSizeChart, Rain-X; passenger: Supported by WiperSizeChart, Rain-X; rear: Supported by Rain-X.

Blade sizes: Verified
Rear status: 10" verified
Connector: Verified
Sources: WiperSizeChart
Cross-checked: Bosch, TRICO, AutoZone, O'Reilly, Rain-X

Field-level source support

Driver blade: Supported by WiperSizeChart, Rain-X
Passenger blade: Supported by WiperSizeChart, Rain-X
Rear blade: Supported by Rain-X
Connector / arm: Supported by Rain-X

Source	Role	Supports	Checked	Link
Bosch	Cross-check source	Checked only	2026-06-12	Visit source
TRICO	Cross-check source	Checked only	2026-06-12	Visit source
AutoZone	Retailer fitment check	Checked only	2026-06-12	Checked source
O'Reilly	Retailer fitment check	Checked only	2026-06-12	Checked source
WiperSizeChart	Primary fitment reference	Driver, Passenger	2026-06-12	Checked source
Rain-X	Cross-check source	Driver, Passenger, Rear, Connector	2026-06-14	Visit source