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Thermostat Kit - main product image
BFNG
Part # 5166KT
4.7(47 reviews)

Thermostat Kit

Fits Buick, Pontiac, Saturn & more — 173 vehicle applications

$38.79
Only 7 left in stock
1
Express Checkout
Free ShippingOrders $99+
WarrantyManufacturer backed
Easy Returns30-day policy
Canadian OwnedShipped across Canada
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BFNG 5166KT Vehicle Fitment

Fits 173 vehicles

This Thermostat Kit fits Buick, Pontiac, Saturn, Chevrolet and 1 more makes vehicles.

  • 2000-2005 Chevrolet Impala

  • 1997-2005 Chevrolet Venture

  • 1997-2004 Chevrolet Malibu

  • 1996 Chevrolet Lumina APV

  • 1995-2005 Chevrolet Monte Carlo

  • 1994-1996 Chevrolet Beretta

  • 1994-1996 Chevrolet Corsica

  • 1991-2001 Chevrolet Lumina

BFNG 5166KT Specifications

Prop 65
ADVERTENCIA: Riesgo de cáncer y daños reproductivos - www.p65warnings.ca.gov
Terminal Type
N/A
Prop 65
WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Material
Copper, Rubber, Stainless Steel, Steel
Material
Acero, Acero inoxidable, Cobre, Caucho
Includes Sensor
No

BFNG 5166KT Interchange Numbers

This part replaces and is compatible with the following part numbers

Interchange Numbers

5166KT5166KT5166KT5166KT95166KT5166KTNI5166KT5166KT

BFNG 5166KT 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

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

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 Housing Assembly at Autrex with vehicle fitment details, current pricing, and checkout options for the BFNG 5166KT. 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 5166KT

What vehicles does the BFNG 5166KT fit?

The BFNG 5166KT fits 26 vehicle applications including 2002-2007 Buick Rendezvous, 2005-2006 Buick Terraza, 1999-2006 Pontiac Montana, 2005-2006 Saturn Relay, 1994-2005 Buick Century and 21 more. Check the full fitment list above to confirm your vehicle.

What parts does the BFNG 5166KT replace?

The BFNG 5166KT is a direct replacement for 5166KT, 5166KT, 5166KT, 5166KT, 95166KT and 4 other part numbers. See the full interchange list for all compatible replacements.

What are the shipping options for the BFNG 5166KT?

Shipping options for the BFNG 5166KT 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 5166KT cost?

The BFNG 5166KT is currently listed at $38.79 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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