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Thermostat Kit - main product image
BFNG
Part # 447448
4.7(47 reviews)

Thermostat Kit

Fits Chevrolet, GMC, Workhorse & more — 200 vehicle applications

$88.79
Only 8 left in stock
1
Express Checkout
Free ShippingOrders $99+
WarrantyManufacturer backed
Easy Returns30-day policy
Canadian OwnedShipped across Canada
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BFNG 447448 Vehicle Fitment

Fits 200 vehicles

This Thermostat Kit fits Chevrolet, GMC, Workhorse, Hummer and 1 more makes vehicles.

  • 2019-2020 Chevrolet Silverado 4500 HD

  • 2019-2020 Chevrolet Silverado 5500 HD

  • 2019-2020 Chevrolet Silverado 6500 HD

  • 2009-2016 Chevrolet Express 4500

  • 2007-2023 Chevrolet Silverado 3500 HD

  • 2007 Chevrolet Silverado 2500 HD Classic

  • 2007 Chevrolet Silverado 3500 Classic

  • 2006-2016 Chevrolet Express 2500

  • 2006-2016 Chevrolet Express 3500

  • 2003-2009 Chevrolet C4500 Kodiak

  • 2003-2009 Chevrolet C5500 Kodiak

  • 2001-2024 Chevrolet Silverado 2500 HD

  • 2001-2006 Chevrolet Silverado 3500

BFNG 447448 Specifications

Outlet Outside Diameter
36.576 mm
Outlet Inside Diameter
30.734 mm
Valve Outside Diameter
34.29 mm
Prop 65
ADVERTENCIA: Riesgo de cáncer y daños reproductivos - www.p65warnings.ca.gov
Outlet Outside Diameter
1.44 in
Outlet Inside Diameter
1.21 in

BFNG 447448 Interchange Numbers

This part replaces and is compatible with the following part numbers

Interchange Numbers

44748QRT2547484474484474484474844748BP44744844744844748P4474844744812T024K94474481601-335239447448NI448744447448

BFNG 447448 Product Description

Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable

Key Features

  • High grade stainless steel and copper construction
  • Original equipment design for worry-free direct fit replacement
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • 100% tested and calibrated

Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable

About BFNG

Shop BFNG Engine Coolant Thermostat at Autrex with vehicle fitment details, current pricing, and checkout options for the BFNG 447448. Eligible orders over $99 may qualify for free shipping, with some exceptions.

Ratings & Reviews

4.7out of 5

Based on 47 reviews

  • 538
  • 46
  • 31
  • 21
  • 11
  • Direct fit, no surprises
    Marc D.Verified BuyerMay 28, 2026

    Lined up perfectly with the original. Install took about an hour with the right press. Solid feel back in the steering, no more clunk over bumps.

    Installed on 2016 Ram 1500

  • Shipped fast across Canada
    Jen P.Verified BuyerMay 14, 2026

    Ordered on a Monday, had it by Wednesday in Calgary. Greasable fitting is a nice touch. Quality looks on par with OEM.

    Installed on 2014 Chevrolet Silverado 1500

  • Good part, double-check your side
    Steve R.Verified BuyerApr 30, 2026

    Works great so far. Just confirm fitment for your exact trim before ordering — the fitment list on the page was accurate for mine.

    Installed on 2017 Ford F-150

  • Quiet again
    Amrit S.Verified BuyerApr 19, 2026

    Replaced both sides at the same time. The knocking noise is completely gone. Boot quality feels durable.

    Installed on 2015 GMC Sierra 1500

  • Would buy again
    Daniel L.Mar 22, 2026

    Second one I've bought from Autrex. Packaging was secure and the part matched the photos exactly.

    Installed on 2013 Dodge Durango

Frequently Asked Questions — BFNG 447448

What vehicles does the BFNG 447448 fit?

The BFNG 447448 fits 26 vehicle applications including 2001-2024 Chevrolet Silverado 2500 HD, 2001-2024 GMC Sierra 2500 HD, 2007-2024 GMC Sierra 3500 HD, 2007-2023 Chevrolet Silverado 3500 HD, 2019-2020 Chevrolet Silverado 4500 HD and 21 more. Check the full fitment list above to confirm your vehicle.

What parts does the BFNG 447448 replace?

The BFNG 447448 is a direct replacement for 44748, QRT2, 54748, 447448, 447448 and 14 other part numbers. See the full interchange list for all compatible replacements.

What are the shipping options for the BFNG 447448?

Shipping options for the BFNG 447448 are shown during checkout and may vary by item, address, and availability. Eligible orders over $99 may qualify for free shipping, with some exceptions. Call 1-866-461-2787 if you need help confirming shipping or pickup before ordering.

How much does the BFNG 447448 cost?

The BFNG 447448 is currently listed at $88.79 CAD at Autrex. Final price, shipping, taxes, and availability are confirmed during checkout. Call 1-866-461-2787 if you need help before ordering.

Is the Thermostat Kit a direct fit replacement?

Yes, the Thermostat Kit by BFNG is designed as a direct fit replacement. Use our vehicle selector to confirm compatibility with your specific vehicle.

What warranty does the Thermostat Kit come with?

The Thermostat Kit comes with the standard BFNG manufacturer warranty. Please check the product specifications for exact warranty terms.

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