GM Genuine Parts®Verified to fit 839 vehicles
| Vehicle | Trim | Engine | Notes |
|---|---|---|---|
| 2007 Chevrolet Express 1500 | — | V6 4.3L | 155MM LONG |
| 2007 Chevrolet Silverado 1500 Classic | — | V6 4.3L | USED AT RH FRT; 155MM LONG |
| 2007 GMC Savana 1500 | — | V6 4.3L | 155MM LONG |
| 2005 Chevrolet Astro | — | V6 4.3L | USED AT LH RR AND RH FRT; 155MM LONG |
| 2005 Chevrolet Blazer | — | V6 4.3L | USED AT RH FRT AND LH RR; 155MM LONG |
| 2005 Chevrolet Express 1500 | — | V6 4.3L | 155MM LONG |
| 2004 Chevrolet Express 1500 | — | V6 4.3L | 155MM LONG |
| 2004 Chevrolet Express 2500 | — | V6 4.3L | 155MM LONG |
| 2004 GMC Savana 2500 | — | V6 4.3L | 155MM LONG |
| 2004 GMC Sierra 1500 | — | V6 4.3L | USED AT RH FRT; 155MM LONG |
| 2003 Chevrolet Astro | — | V6 4.3L | USED AT LH RR AND RH FRT; 155MM LONG |
| 2003 GMC Jimmy | — | V6 4.3L | USED AT RH FRT AND LH RR; 155MM LONG |
| 2002 Chevrolet Blazer | — | L6 4.2L | USED AT RH FRT; 155MM LONG |
| 2002 Chevrolet Express 1500 | — | V8 5.0L | USED AT LH RR AND RH FRT; 155MM LONG |
| 2002 Chevrolet Express 3500 | — | V8 5.7L | USED AT LH RR AND RH FRT; 155MM LONG |

WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, known to the State of California to cause cancer and reproductive harm. Service the vehicle in a well-ventilated area, wear gloves, and wash your hands. See www.P65Warnings.ca.gov/motor-vehicle-parts

Guaranteed fit — or free return
Currently out of stock
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If a part we confirmed for your vehicle does not fit, we cover the return shipping and refund you in full. That is the fitment guarantee.
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Nobody likes buying a part that turns out to be wrong. So if it doesn't fit, send it back for a full refund at no cost to you — return shipping is on us — and we'll help you get the right one.
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Every part is covered for 24 months. Many brands add their own manufacturer warranty on top.
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The brands automakers actually put on the car. No white-label mystery boxes.
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GM Genuine Parts Spark Plug Heat Shield 12551505
Out of stock · guaranteed fit or free return

GM Genuine Parts Spark Plug Heat Shield 12551505
Checking fitment…

Key Features
About This Spark Plug Heat Shield
This GM Genuine Parts automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.
Key Features
- Meets or exceeds OEM specifications
- Direct-fit replacement design
- Rigorously tested for durability
- Professional-grade construction
- Backed by manufacturer warranty
Signs This Part Needs Replacement
- •Unusual noises from the component area
- •Decreased vehicle performance
- •Warning lights on dashboard
- •Visible wear or damage
- •Failed vehicle inspection

GM Genuine Parts
Trusted Automotive Brand
GM Genuine Parts is a trusted manufacturer of quality automotive parts.
View all GM Genuine Parts productsInstallation Guide
Tools Needed
Frequently Asked Questions
The GM Genuine Parts Spark Plug Heat Shield (12551505) is a direct-fit replacement for 1987-2007 GMC, Chevrolet, Oldsmobile and 1 other make. UPC 198824624639. Ships free.
About This Product
Spark Plug Heat Shield
The GM Genuine Parts Spark Plug Heat Shield (12551505) is a direct-fit replacement for 1987-2007 GMC, Chevrolet, Oldsmobile and 1 other make. UPC 198824624639. Ships free.
This GM Genuine Parts automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.
Key Features
- Meets or exceeds OEM specifications
- Direct-fit replacement design
- Rigorously tested for durability
- Professional-grade construction
- Backed by manufacturer warranty
Signs This Part Needs Replacement
- Unusual noises from the component area
- Decreased vehicle performance
- Warning lights on dashboard
- Visible wear or damage
- Failed vehicle inspection

Brand-first. Fitment-obsessed.
We only sell brands automakers trust, and we double-check the fit on every listing.
Top curated brands only
The brands automakers put on the car.
Obsessed with fitment
Year, make, model, trim, engine, plus the fine print.
Search any part number
Your old part, a competitor, or the dealer #. We confirm the match.
Shop owner? Get BuffyPro business pricing

Fitment Obsessed
Every part checked against your exact year, make, model, trim, and engine.
Wrong Fit? On Us.
Free return shipping, no restocking fee — the fitment guarantee.
Brands OEMs Trust
The names automakers actually put on the car.
Millions of Parts, One Promise
If we say it fits, it fits.




