{"id":46857,"date":"2026-07-06T17:14:11","date_gmt":"2026-07-06T17:14:11","guid":{"rendered":"https:\/\/www.europesays.com\/france\/46857\/"},"modified":"2026-07-06T17:14:11","modified_gmt":"2026-07-06T17:14:11","slug":"stellantis-strengthens-its-michigan-stamping-plants","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/france\/46857\/","title":{"rendered":"Stellantis Strengthens Its Michigan Stamping Plants"},"content":{"rendered":"

\ud83d\udd5110 min read<\/p>\n

Stellantis recently invited a small group of automotive journalists, including myself, inside two of its most important manufacturing operations in Metro Detroit: Sterling Stamping Plant (SSP) in Sterling Heights and Warren Stamping Plant (WSP) in Warren. For those who follow the auto industry closely, that is a pretty big deal. These are not facilities that media members get to walk through very often.<\/p>\n

In this article\u25be<\/p>\n

Stamping Is Where The Vehicle Starts<\/a>
\nSterling Stamping Brings Massive Scale<\/a>
\nPride On Every Shift<\/a>
\nWarren Stamping Adds Speed And Flexibility<\/a>
\nQuality Starts Before Assembly<\/a>
\nWhy These Plants Matter<\/a>
\nA Rare Look Behind The Curtain<\/a><\/p>\n

For many Chrysler, Dodge, Jeep\u00ae, and Ram models, that starting point is inside Stellantis\u2019 stamping operations. That is where massive coils of metal are transformed into the hoods, doors, roofs, fenders, liftgates, tailgates, floor pans, and structural pieces that eventually become the vehicles customers see on dealer lots. After seeing both Sterling and Warren up close, it is hard not to come away with a much deeper appreciation for how much work, coordination, and pride goes into the process before a vehicle ever reaches final assembly.<\/p>\n

\"\"All Die Maintenance Is Done In House at the Sterling Stamping. (MoparInsiders).
\nStamping Is Where The Vehicle Starts<\/p>\n

\u2191 Back to top<\/a><\/p>\n

\u201cWhen people think about vehicle manufacturing, they usually picture the assembly line,\u201d said Ed Daniels Jr.<\/a>, Vice President of North America Injection and Stamping Operations. \u201cBut stamping is where that work begins. Sterling and Warren give our North America operations the scale, speed and flexibility needed to deliver precision parts on time, support key vehicle programs and help drive sustainable, profitable growth. As Stellantis executes its $13 billion U.S. investment plans, these plants and the people behind them are critical to strengthening our manufacturing foundation and keeping assembly operations moving.\u201d<\/p>\n

That statement really sums up what these plants mean to Stellantis\u2019 North American footprint. Sterling and Warren sit just nine miles apart, but together they help feed a large network of assembly plants across the United States, Canada, and Mexico.<\/p>\n

For the average customer, a hood is just a hood. A door is just a door. But inside these plants, every panel has to be formed with exact precision. The shape, fit, surface quality, structural strength, and repeatability all matter. A small imperfection at the stamping level can create problems much later in the production process, which is why quality control begins right at the first press stroke.<\/p>\n

Metal coils enter the plants and are cut, shaped, formed, inspected, assembled, and shipped out to assembly plants. The process is loud, powerful, and surprisingly choreographed. Watching it in person gives you a completely different perspective on vehicle manufacturing. These are not simple pieces of sheet metal being punched out. These are highly engineered components being formed at high speed with extremely tight tolerances.<\/p>\n

\"\"Jeep\u00ae Grand Wagoneer Hood Sub-Assembly Station at Sterling Stamping. (MoparInsiders).
\nSterling Stamping Brings Massive Scale<\/p>\n

\u2191 Back to top<\/a><\/p>\n

Sterling Stamping Plant is one of the largest stamping facilities in the world, covering more than 2.7 million square feet on 254 acres. The facility has been part of Chrysler\u2019s manufacturing backbone since 1965<\/a>, and today it continues to play a major role in supporting several key Stellantis vehicle programs.<\/p>\n

The plant produces stampings and assemblies for nameplates like the Ram 1500<\/a>, Dodge Durango<\/a>, Chrysler Pacifica<\/a>, Jeep Grand Cherokee<\/a>, Jeep Wrangler<\/a>, Jeep Gladiator<\/a>, Jeep Grand Wagoneer<\/a>, and Ram Heavy Duty<\/a>, among others. It also supports multiple assembly plants, including Sterling Heights Assembly Plant (SHAP), Warren Truck Assembly Plant (WTAP), Windsor Assembly Plant (WAP), the Detroit Assembly Complex, Toledo Assembly Complex, Saltillo, and more.<\/p>\n

One thing that stood out during the visit was the sheer size of the operation. Sterling is not just stamping flat pieces of metal and sending them down the road. The plant also handles a huge amount of sub-assembly work before parts ever reach the vehicle assembly line.<\/p>\n

For example, something like a hood is not simply stamped and shipped. The outer skin, inner structure, reinforcements, hemming, welding, and related work can all be handled within the stamping operation before the part moves on. That means the assembly plant receives a much more complete component, allowing final vehicle assembly to stay focused and efficient.<\/p>\n

Sterling\u2019s numbers are impressive. The operation includes 22 press lines, hundreds of dies, major assembly lines, sub-assembly cells, hemming operations, several welding types, and hundreds of robots. The plant also ships a massive amount of product every day, with outbound trucks and rail cars moving parts to customers across the Stellantis manufacturing network.<\/p>\n

\"\"SSP Plant Manager Butch Bauer displays the vehicles they manufacture metal for. (MoparInsiders).
\nSterling Stamping Plant (SSP) Fact List<\/p>\n

Floor Space: 2.74 million square feet
\nAcreage: 254 acres
\nOpened: 1965
\nPress Lines: 22
\nDies: 879
\nRobots: 783
\nOutbound Trucks: 330 per day
\nOutbound Rail Cars: 6 per day
\nNorth America Surface Metal: Provides 52% of Stellantis\u2019 North American surface metal
\nUnion Locals: UAW Local 1264, 889, and 412<\/p>\n

Key Vehicles Supported By SSP<\/p>\n

Ram 1500 (DT) \u2014 built at Sterling Heights Assembly Plant
\nChrysler Pacifica \/ Chrysler Grand Caravan (RU) \u2014 built at Windsor Assembly Plant
\nDodge Charger (LB) \u2014 built at Windsor Assembly Plant
\nJeep Wrangler (JL) \u2014 built at Toledo North Assembly Plant
\nJeep Gladiator (JT) \u2014 built at Toledo South Assembly Plant
\nDodge Durango (WD) \u2014 built at Detroit Assembly Complex \u2013 Jefferson
\nJeep Grand Cherokee (WL74) \u2014 built at Detroit Assembly Complex \u2013 Jefferson
\nJeep Grand Cherokee \/ Grand Cherokee L (WL74\/WL75) \u2014 built at Detroit Assembly Complex \u2013 Mack
\nJeep Grand Wagoneer (WS) \u2014 built at Warren Truck Assembly Plant
\nRam Heavy Duty (DJ, D2, DD, DP) \u2014 built at Saltillo Truck Assembly Plant
\nJeep Wagoneer S (KM) \u2014 built at Toluca Assembly Plant<\/p>\n

\"\"Sterling Stamping Plant (SSP) in Sterling Heights, Michigan. (Stellantis).
\nPride On Every Shift<\/p>\n

\u2191 Back to top<\/a><\/p>\n

The other thing that stood out was the workforce. These are United Auto Workers (UAW)<\/a>-represented employees who know exactly how important their work is. There is a lot of pride in these plants, and you can see it in the way the teams talk about their jobs.<\/p>\n

\u201cOur workforce is what makes an operation like this possible,\u201d said Greg \u201cButch\u201d Bauer<\/a>, Vice President and Plant Manager, Sterling Stamping Plant. \u201cThere\u2019s a level of ownership and pride across every shift that ensures we\u2019re delivering the same quality and performance at all times.\u201d<\/p>\n

That pride matters because Sterling and Warren both operate on a three-shift structure. Between the two plants, that creates six coordinated shifts working to keep a steady flow of parts moving. The schedule also allows time for maintenance, service, die work, and other critical behind-the-scenes jobs needed to keep the equipment performing properly.<\/p>\n

One of the biggest misconceptions about stamping is that the machines do everything. Yes, the equipment is massive and advanced, but the people are what keep the process working. Operators, maintenance teams, quality teams, skilled trades, and logistics workers all have to work together. When you see the size of the presses and the speed of the process, it becomes clear that human experience still plays a huge role.<\/p>\n

\"\"This blanker was recently moved from the Belvidere Plant to WSP. (MoparInsiders).
\nWarren Stamping Adds Speed And Flexibility<\/p>\n

\u2191 Back to top<\/a><\/p>\n

While Sterling brings massive scale, Warren Stamping brings serious speed and flexibility. Warren Stamping Plant opened in 1949 and is one of Stellantis\u2019 oldest active manufacturing operations. Originally known as the 9 Mile Press Plant, the facility has grown and evolved over several decades.<\/p>\n

Today, Warren covers about 1.8 million square feet on 78 acres and produces stampings and assemblies for several important vehicle lines.<\/p>\n

One of the most interesting pieces of equipment inside Warren is the high-speed transfer press line known internally as \u201cHellcat.\u201d That nickname fits, because the line is designed for speed. It can move up to 15 pieces per minute while still maintaining the precision needed for modern vehicle production.<\/p>\n

But the big recent news at Warren is the addition of a blanking press. In simple terms, blanking is the process of cutting flat pieces of metal, called blanks, from large coils before they are formed into final vehicle parts. By bringing more of that work in-house, Warren gains more control over quality, timing, and supply flexibility.<\/p>\n

\u201cThe new press has the capacity to produce between 4.5 million and 6 million parts annually for vehicles, including the Ram 1500 and three Jeep models \u2013 the Wrangler, Gladiator and Grand Cherokee,\u201d said Curtis Booth<\/a>, Vice President and Plant Manager, Warren Stamping Plant. \u201cTogether, the Hellcat line and the new blanking press give WSP the ability to both prepare and form critical vehicle components within a highly integrated manufacturing operation.\u201d<\/p>\n

That is an important move for Stellantis. In an industry where supply chain problems can slow or stop production, being able to control more of the process internally gives the company another advantage. It also supports the automaker\u2019s broader North American growth plans under its FaSTLAne 2030 strategy<\/a>.<\/p>\n

\"\"\u201cHellcat\u201d press cranking out Jeep\u00ae Wrangler\/Gladiator rear doors at WSP. (MoparInsiders).
\nWarren Stamping Plant (WSP) Fact List<\/p>\n

Floor Space: 1.8 million square feet
\nAcreage: 78 acres
\nOpened: 1949
\nPress Lines: 11
\nDies: 546
\nDiesets: 168
\nRobots: 524
\nOutbound Trucks: 110 per day
\nOutbound Rail Cars: 8 per day
\nUnion Locals: UAW Local 869, 889, and 412<\/p>\n

Key Vehicles Supported By WSP<\/p>\n

Ram 1500 (DT) \u2014 built at Sterling Heights Assembly Plant and Saltillo Truck Light Duty Plant
\nChrysler Pacifica \/ Chrysler Grand Caravan (RU) \u2014 built at Windsor Assembly Plant
\nDodge Charger (LB) \u2014 supported by WSP stamped and underbody components
\nJeep Wrangler (JL) \u2014 built at Toledo North Assembly Plant
\nJeep Gladiator (JT) \u2014 built at Toledo South Assembly Plant
\nDodge Durango (WD) \u2014 built at Detroit Assembly Complex \u2013 Jefferson
\nJeep Grand Cherokee (WL74) \u2014 built at Detroit Assembly Complex \u2013 Jefferson
\nJeep Grand Cherokee \/ Grand Cherokee L (WL74\/WL75) \u2014 built at Detroit Assembly Complex \u2013 Mack
\nJeep Grand Wagoneer (WS) \u2014 built at Warren Truck Assembly Plant
\nRam Heavy Duty (DJ, D2, DD, DP) \u2014 built at Saltillo Truck Assembly Plant<\/p>\n

\"\"WSP Plant Manager Curtis Booth displays the vehicles they manufacture metal for. (MoparInsiders).
\nQuality Starts Before Assembly<\/p>\n

\u2191 Back to top<\/a><\/p>\n

Another major takeaway from the tour was how much quality control happens before a part leaves the stamping plant. These facilities are not just producing parts quickly; they are checking them constantly.<\/p>\n

Operators use a combination of hands-on experience and advanced inspection systems to catch issues early. One of the most advanced tools in the process is the Automated Body Inspection System<\/a>, or ABIS. This system captures images and analyzes part geometry to make sure components meet the required specifications.<\/p>\n

That kind of inspection is critical because modern vehicles have tighter gaps, more complex surfaces, and higher customer expectations than ever before. A fender, door, hood, or liftgate has to look right, fit right, and perform properly once it becomes part of the vehicle.<\/p>\n

For Jeep and Ram products especially, durability is also part of the equation. These vehicles are expected to work hard, tow, haul, go off-road, and hold up to real-world use. That starts with the structure and body components underneath the paint.<\/p>\n

\"\"Warren Stamping Plant (WSP) in Warren, Michigan. (Stellantis).
\nWhy These Plants Matter<\/p>\n

\u2191 Back to top<\/a><\/p>\n

Sterling helps provide a huge percentage of the surface metal used across the company\u2019s regional lineup. Warren supports key truck and Jeep programs while adding more in-house capability through the new blanking press. Together, the two plants help keep parts flowing to assembly operations that build some of Stellantis\u2019 most important and profitable vehicles.<\/p>\n

For enthusiasts, it is easy to focus on engines, horsepower, screens, trims, tires, and styling. But none of that matters if the foundation is not right. The body panels, underbody structures, closures, and stamped assemblies all play a role in how a vehicle looks, feels, fits together, and performs over time.<\/p>\n

That is what made this tour so interesting. It pulled back the curtain on a part of the industry that most people never get to see. These plants are not just supporting production. They are shaping the vehicles themselves, one panel at a time.<\/p>\n

\"\"Inventory ready to be shipped out at the WSP facility. (MoparInsiders).
\nA Rare Look Behind The Curtain<\/p>\n

\u2191 Back to top<\/a><\/p>\n

Getting invited inside Sterling Stamping and Warren Stamping was a rare opportunity. Stellantis does not open these facilities to media very often, and after seeing the operations firsthand, it is easy to understand why these plants are such an important part of the company\u2019s manufacturing story.<\/p>\n

But what stood out most was not just the size of the presses, the speed of the lines, or the amount of metal moving through the buildings every day. It was the people. The UAW members working inside these plants are the true artists behind the process. They are not just stamping parts; they are shaping the body panels and structural pieces that give Chrysler, Dodge, Jeep, and Ram vehicles their identity.<\/p>\n

It starts with a coil of metal, a powerful press, and a skilled workforce that treats each panel like a piece of craftsmanship. Most customers will never see that work happen, but every customer depends on it every time they open a door, close a hood, or get behind the wheel.<\/p>\n

Stellantis Stamping Operations Photo Gallery:<\/p>\n

This slideshow requires JavaScript.<\/p>\n

\t\t\"Robert<\/p>\n

Written by<\/p>\n

\t\t\tRobert S. Miller<\/p>\n

Robert S. Miller is a diehard Mopar enthusiast who lives and breathes all that is Mopar. The Michigander is not only the Editor for MoparInsiders.com, 5thGenRams.com, and HDRams.com but an automotive photographer. He is an avid fan of offshore powerboat racing, which he travels the country to take part in.<\/p>\n

\n\t\t\t\t
\n\t\t\t\t\tMore from Robert S. Miller\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<\/p>\n","protected":false},"excerpt":{"rendered":"\ud83d\udd5110 min read Stellantis recently invited a small group of automotive journalists, including myself, inside two of its…\n","protected":false},"author":2,"featured_media":46858,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13129],"tags":[20031,2074,31320,31321,13579,31322,12603,13314,29468,13572,31323,2080,5271,31324,12659,31325,21060,14584,20854,1642,12521,12,13573,31326,12112,31327,31328,31329,31330,31331,4797,26335,18853,31332,31333,31334,31335],"class_list":["post-46857","post","type-post","status-publish","format-standard","has-post-thumbnail","category-stellantis","tag-assembly","tag-automotive","tag-automotive-stamping-process","tag-blanking","tag-chrysler","tag-chrysler-dodge-jeep-ram-plants","tag-detroit","tag-dodge","tag-factory","tag-jeep","tag-jeep-and-ram-production","tag-manufacturing","tag-metal","tag-metro-detroit-manufacturing","tag-michigan","tag-michigan-auto-manufacturing","tag-mopar","tag-operations","tag-parts","tag-press","tag-production","tag-quality","tag-ram","tag-stamping","tag-stellantis","tag-stellantis-manufacturing-investment","tag-stellantis-stamping-operations","tag-sterling","tag-sterling-stamping","tag-sterling-stamping-plant","tag-trucks","tag-uaw","tag-vehicles","tag-warren","tag-warren-blanking-press","tag-warren-stamping","tag-warren-stamping-plant"],"_links":{"self":[{"href":"https:\/\/www.europesays.com\/france\/wp-json\/wp\/v2\/posts\/46857","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/france\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/france\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/france\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/france\/wp-json\/wp\/v2\/comments?post=46857"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/france\/wp-json\/wp\/v2\/posts\/46857\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/france\/wp-json\/wp\/v2\/media\/46858"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/france\/wp-json\/wp\/v2\/media?parent=46857"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/france\/wp-json\/wp\/v2\/categories?post=46857"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/france\/wp-json\/wp\/v2\/tags?post=46857"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}