The Nice Official Marvin Heemeyer Killdozer Komatsu D355A Granby Colorado 2004 Muffler Shirt features a striking black and white graphic centered on the chest, depicting the infamous armor-plated Komatsu D355A bulldozer known as the “Killdozer.” This design references the 2004 incident in Granby, Colorado, where Marvin Heemeyer, a muffler repair shop owner, fortified his bulldozer with armor plating and used it to destroy 13 buildings in a dramatic and notorious event.

Contents
Historical Context of the Killdozer Incident
In 2004, Marvin Heemeyer took drastic action by modifying a Komatsu D355A bulldozer with steel and concrete armor, creating what became known as the “Killdozer.” This heavily fortified vehicle was used to demolish several structures in Granby, Colorado, making headlines for its scale and the unusual nature of the event. The shirt’s design includes a detailed image of the bulldozer along with text that outlines the key facts of the incident, serving as a visual summary of this unique moment in Colorado’s history.
Audience and Use for This Apparel
This shirt appeals to history enthusiasts, true crime fans, and researchers interested in notorious incidents and unusual historical events. It also suits graphic apparel people who appreciate designs that capture significant moments with a bold visual style. The shirt can be worn casually or as a way to commemorate and reflect on this particular historical event. Whether attending a history discussion, a true crime gathering, or simply adding to a collection of statement apparel, this design offers a distinctive look tied to a well-documented incident.
For those intrigued by the story of Marvin Heemeyer and the Killdozer, this shirt connects to a broader interest in historical incidents involving unconventional acts of defiance.
Product details
| Product type | Shirt |
|---|---|
| Material | 100% cotton, except Sport Grey: 90% US cotton / 10% polyester; Dark Heather: 50% US cotton / 50% polyester or 35% US cotton / 65% polyester; Ash: 99% US cotton / 1% polyester. |
| Size options | S, M, L, XL, 2XL, 3XL, 4XL, 5XL |
| Care | Machine wash at max. 30ºC/86ºF with short spin cycle, inside out with like colors. Do not use bleach. Do not iron. Do not dry clean. Do not tumble dry. |
| Fit | Seamless twin needle 7/8″ collar, taped neck and shoulders, rolled forward shoulders for better fit, twin needle sleeve and bottom hems, quarter-turned to eliminate centre crease. |
| Note | Fiber content may vary by color. |

The Nice Official Marvin Heemeyer Killdozer Komatsu D355A Granby Colorado 2004 Muffler t Shirt graphic is available as a classic shirt, v-neck shirt, tank top, hoodie, long sleeve shirt, sweater, washed shirt, and kids shirt — pick the style that suits you, and check the Product details above for the full size range.

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Frequently asked questions
Who was Marvin Heemeyer?
Marvin Heemeyer was a muffler repair shop owner in Granby, Colorado, known for modifying a bulldozer into the Killdozer during a 2004 incident.
Is this shirt an official or licensed product?
No, this shirt is not licensed merchandise. It is a graphic apparel item inspired by a historical event.




















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