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OE Quality
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Four SeasonsPart #: 86343
Four Seasons 86343 Engine Coolant Thermostat / Water Outlet Assembly
30 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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*Free return shipping only qualifies if our fitment verification tool is used.
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Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Water Outlet
Fitment: Buick, Cadillac, Chevrolet, and GMC, Acadia, Blazer, LaCrosse, Regal Sportback, XT5, and XT6
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? See all Engine Coolant Thermostat / Water Outlet Assembly options
Four Seasons 86343 Engine Coolant Thermostat / Water Outlet Assembly
| Brand | Four Seasons |
|---|---|
| Part Number | 86343 |
| Position | Water Outlet |
| Description | Engine coolant components |
| Gasket or Seal Included | Yes |
| Inlet Dia. IN | 1.34 |
| Material | Aluminum |
| Mnt Flange Width IN | 1.7 |
| Overall Height IN | 4.55 |
| Style | W/ thermostat |
| Thermostat Included? | Included |
| Type | Outlet |
This part fits 30 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2025 | Chevrolet | Blazer | 3.6L | V6 | N/A | Water Outlet |
| 2024 | Chevrolet | Blazer | 3.6L | V6 | N/A | Water Outlet |
| 2023 | Cadillac | XT5 | N/A | Water Outlet | ||
| 2023 | Cadillac | XT6 | 3.6L | V6 | N/A | Water Outlet |
| 2023 | Chevrolet | Blazer | 3.6L | V6 | N/A | Water Outlet |
| 2023 | GMC | Acadia | 3.6L | V6 | N/A | Water Outlet |
| 2022 | Cadillac | XT5 | N/A | Water Outlet | ||
| 2022 | Cadillac | XT6 | 3.6L | V6 | N/A | Water Outlet |
| 2022 | Chevrolet | Blazer | 3.6L | V6 | N/A | Water Outlet |
| 2022 | GMC | Acadia | 3.6L | V6 | N/A | Water Outlet |
| 2021 | Cadillac | XT5 | N/A | Water Outlet | ||
| 2021 | Cadillac | XT6 | 3.6L | V6 | N/A | Water Outlet |
| 2021 | Chevrolet | Blazer | 3.6L | V6 | N/A | Water Outlet |
| 2021 | GMC | Acadia | 3.6L | V6 | N/A | Water Outlet |
| 2020 | Buick | Regal Sportback | 3.6L | V6 | N/A | Water Outlet |
| 2020 | Cadillac | XT5 | N/A | Water Outlet | ||
| 2020 | Cadillac | XT6 | N/A | Water Outlet | ||
| 2020 | Chevrolet | Blazer | 3.6L | V6 | N/A | Water Outlet |
| 2020 | GMC | Acadia | 3.6L | V6 | N/A | Water Outlet |
| 2019 | Buick | LaCrosse | 3.6L | V6 | N/A | Water Outlet |
| 2019 | Buick | Regal Sportback | 3.6L | V6 | N/A | Water Outlet |
| 2019 | Cadillac | XT5 | N/A | Water Outlet | ||
| 2019 | Chevrolet | Blazer | 3.6L | V6 | N/A | Water Outlet |
| 2019 | GMC | Acadia | 3.6L | V6 | N/A | Water Outlet |
| 2018 | Buick | LaCrosse | 3.6L | V6 | N/A | Water Outlet |
| 2018 | Cadillac | XT5 | N/A | Water Outlet | ||
| 2018 | GMC | Acadia | 3.6L | V6 | N/A | Water Outlet |
| 2017 | Buick | LaCrosse | N/A | Water Outlet | ||
| 2017 | Cadillac | XT5 | N/A | Water Outlet | ||
| 2017 | GMC | Acadia | 3.6L | V6 | N/A | Water Outlet |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
126705571267365912678779860221863439022115
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.