# MotoRad 405-174 Engine Coolant Thermostat for 2001-2009 BMW 3-Series

### Specifications

Flange Thickness: 0.13"

Gasket or Seal included: No

Installation Tool Included: No

Jiggle Pin Weep Hole Included: No

Sealing Flange Outside Diameter: 2.46"

Temperature (Degree): 174F

### Features

-   Offer precise pressure control
-   Ensure the proper fit
-   Made of high quality materials
-   Easy installation

### Product Details

Engine Coolant Thermostat by MotoRad®. Temperature: 174F. State-of-the-art equipment, strict quality control, and functional testing to each thermostat 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 a full line of thermostats to replace original equipment thermostats. These parts are manufactured with high-grade duel bridge stainless steel construction and they meet or exceed all original equipment manufacturer requirements. MotoRad also offers standard thermostats in many alternate temperatures.

Brand: MotoRad

Part Number: 405-174

UPC: 055644405742

Alternate MPN: 405174

OE Numbers: 11531318274

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2001

BMW

3-Series

2002

BMW

3-Series

2003

BMW

3-Series

2004

BMW

3-Series

2005

BMW

3-Series

2006

BMW

3-Series

2001

BMW

Z3

2002

BMW

Z3

2006

BMW

Z4

2007

BMW

Z4

2008

BMW

Z4

2009

BMW

Z4

### 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 405-174.

**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 for BMW 3-Series
-   405-174 fitment
-   MotoRad Engine Coolant Thermostat
-   2001 BMW 3-Series Engine Coolant Thermostat

## Details

- **Price:** 71.9 CAD
- **Vendor:** MotoRad
- **Type:** Engine Coolant Thermostat
- **Tags:** 2001-2002 BMW Z3, 2001-2006 BMW 3-Series, 2006-2009 BMW Z4, 405-174, Automotive, Engine Coolant Thermostat, MotoRad

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 71.90 CAD | In stock |

## Images

- MotoRad 405-174 Engine Coolant Thermostat for 2001-2009 BMW 3-Series

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/motorad-405-174-engine-coolant-thermostat)
> Updated: 2026-08-17