Question 1

How much does a GMC sill plate cost?

Accepted Answer

GMC sill plate prices vary by model and condition: Used parts typically cost $50-$300, aftermarket $100-$500, and OEM $200-$800. Used parts offer the best savings while maintaining quality.

Question 2

Can I install a GMC sill plate myself?

Accepted Answer

Sill Plate replacement difficulty: Varies. Estimated time: 1-4 hours. DIY-friendly with proper tools and instructions.

Question 3

What are signs of a bad GMC sill plate?

Accepted Answer

Common symptoms of a failing GMC sill plate include: Poor performance, Warning lights, Unusual sounds. If you notice these signs, it's time to replace the sill plate.

Question 4

Which GMC models use the same sill plate?

Accepted Answer

Many GMC models share sill plate components across model years and platforms. Our search tool will show compatible parts for your specific GMC model and year.

Question 5

Where can I find a used GMC sill plate?

Accepted Answer

Find used GMC sill plate parts through our network of online sellers, local scrapyards, and junkyards. Use our search tool to compare prices from multiple sources and find the best deal.

Question 6

Are used GMC sill plate parts reliable?

Accepted Answer

Yes! Quality used GMC sill plate parts from reputable sellers are tested and often come with warranties. Many used parts have significant life remaining and cost 50-70% less than new.

GMC Sill Plate - OEM & Used Parts

GMC Sill Plate by Model

Acadia

Hummer EV

Jimmy, Full Size

Jimmy, S10/S15

Safari Van

Sierra Denali EV

Sprint

Suburban-10 (1988 Down)

Suburban-1000 (1965-1966)

Suburban-1500 (2001 Down)

Suburban-20 (1988 Down)

Suburban-2500 (1967 Up)

Suburban-30 (1965-1966)

Syclone

Terrain

Truck-1000 Series (1966 Down)

Truck-1500 Series (1999 Down)

Truck-2500 Series (2000 Down)

Truck-3500 Series (2001 Down)

Truck-Canyon

Truck-Envoy

Truck-Envoy XL

Truck-Envoy XUV

Truck-Forward Control

Truck-S10/S15/Sonoma

Truck-Sierra 1500 (1999 Up)

Truck-Sierra 2500 (1999 Up)

Truck-Sierra 3500 (2001 Up)

Truck-Sierra Denali

Truck-Sierra Denali 1500 (2011 Up)

Truck-Sierra Denali 2500 (2011 Up)

Truck-Sierra Denali 3500 (2011 Up)

Truck-Topkick

Truck-Yukon (except XL)

Truck-Yukon XL1500

Truck-Yukon XL2500

Typhoon

Van 1000

Van 1500

Van 2500

Van 3500

Van Savana 1500

Van Savana 2500

Van Savana 3500

About the GMC Sill Plate

Signs of Failure

Replacement Info

GMC Sill Plate Price Comparison

Used Parts

Aftermarket

OEM New

Other GMC Parts

GMC A Pillar

GMC A Pillar Trim

GMC A/C Bracket

GMC A/C Compressor

GMC A/C Compressor Clutch Only

GMC A/C Condenser

GMC A/C Condenser Fan

GMC A/C Control Computer

GMC Sill Plate - FAQ

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