# MotoRad CH5166 Engine Coolant Thermostat Water Outlet for 1991-2007 Buick Century

### Specifications

Bolts Included: No

Color: Silver

Material: Steel

Mounting Hole Quantity: 2

Outlet Diameter: 1.32"

### Features

-   Made to keep your vehicle's engine running cool
-   Designed to maintain proper cooling level and prevent overheating
-   Manufactured from high-strength materials to last
-   Durable construction to withstand everyday wear and tear

### Product Details

Engine Coolant Thermostat Water Outlet (CH5166) by MotoRad®. State-of-the-art equipment, strict quality control, and functional testing to each water outlet ensure customers that they can trust the high-quality product used in their vehicle. As cooling system experts, MotoRad knows what is necessary to manufacture a high-quality part that will stand up to the rigors of today’s demanding cooling system environments where others fail.

MotoRad offers an extensive line of adhesive backed thermostat gaskets and rubber seals to support thermostat installation. MotoRad's thermostat gaskets are made from high quality materials suitable for resistance to high temperatures and engine coolant to maintain a good seal. The adhesive backing also reduces installation time by ensuring proper alignment and ease of installation. MotoRad's thermostat seals are precision designed and made from high quality rubber products ensuring an accurate fit and durability for a long lasting seal. When a thermostat requires a single seal for all of its applications, MotoRad includes the seal with the thermostat to service the complete job and ensure customer satisfaction. Also, a seal will be included when precise alignment of the seal to the thermostat is required. This is a benefit to the DIY customer and the professional installer, as this information may only be known by the OEM through service bulletins.

Brand: MotoRad

Part Number: CH5166

UPC: 055644682716

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

1994-2005

Buick

Century

1994-1996

Buick

Regal

2002-2007

Buick

Rendezvous

1994-1998

Buick

Skylark

2005-2006

Buick

Terraza

2000-2005

Chevy

Impala

1991-2001

Chevy

Lumina

1997-2005

Chevy

Malibu

1995-2005

Chevy

Monte Carlo

2004-2005

Chevy

Vectra

1997-2005

Chevy

Venture

1999-2004

Oldsmobile

Alero

1994-1996

Oldsmobile

Ciera

1991-1999

Oldsmobile

Cutlass

1996-2004

Oldsmobile

Silhouette

2001-2005

Pontiac

Aztek

1994-2005

Pontiac

Grand Am

1991-2003

Pontiac

Grand Prix

1999-2006

Pontiac

Montana

2005-2007

Saturn

Relay

### FAQ

**Will this fit my vehicle?**  
Please verify your year, make, model, position, and any fitment notes using the Vehicle Fitment Table above before purchase.

**What part number is this?**  
The listed part number is CH5166.

**Is this product designed for direct replacement?**  
Yes. This product is intended to match the compatible vehicle applications listed in the fitment table.

**Should I confirm fitment before ordering?**  
Yes. Always compare your original part, position, and vehicle details with the fitment table before ordering.

### Common Searches

-   Engine Coolant Thermostat Water Outlet for Buick Century
-   CH5166 fitment
-   MotoRad Engine Coolant Thermostat Water Outlet
-   1994 Buick Century Engine Coolant Thermostat Water Outlet

## Details

- **Price:** 25.12 CAD
- **Vendor:** MotoRad
- **Type:** Engine Coolant Thermostat Water Outlet
- **Tags:** 1991-1999 Oldsmobile Cutlass, 1991-2001 Chevy Lumina, 1991-2003 Pontiac Grand Prix, 1994-1996 Buick Regal, 1994-1996 Oldsmobile Ciera, 1994-1998 Buick Skylark, 1994-2005 Buick Century, 1994-2005 Pontiac Grand Am, 1995-2005 Chevy Monte Carlo, 1996-2004 Oldsmobile Silhouette, 1997-2005 Chevy Malibu, 1997-2005 Chevy Venture, 1999-2004 Oldsmobile Alero, 1999-2006 Pontiac Montana, 2000-2005 Chevy Impala, 2001-2005 Pontiac Aztek, 2002-2007 Buick Rendezvous, 2004-2005 Chevy Vectra, 2005-2006 Buick Terraza, 2005-2007 Saturn Relay, Automotive, CH5166, Engine Coolant Thermostat Water Outlet, MotoRad

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 25.12 CAD | In stock |

## Images

- MotoRad CH5166 Engine Coolant Thermostat Water Outlet for 1991-2007 Buick Century

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/motorad-ch5166-engine-coolant-thermostat-water-outlet)
> Updated: 2026-08-17