{"product_id":"partsam-5pcs-21led-cab-marker-roof-running-top-lights-super-bright","title":"Partsam 5PCS 21LED Cab Marker Roof Running Top Lights - Super Bright","description":"\u003cp\u003eIn this review the Partsam 5PCS 21LED cab marker lights are evaluated for heavy duty truck owners who need brighter, more efficient roof running lights. The bottom line: these are a cost effective, modern LED replacement for longer rigs that replaces older incandescent cab markers and delivers noticeable brightness, lower current draw and a snug sealed fit. Installation requires hardwiring and a size check, so buyers who want a direct plug-and-play swap should confirm fitment before purchasing.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal fit:\u003c\/strong\u003e Designed for trucks, trailers, tractors, semi-trailers, dump trucks, buses and many special vehicles so one kit can cover multiple applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e21 LED array:\u003c\/strong\u003e The dense 21 LED layout provides a brighter, faster-responding amber signal than incandescent bulbs, improving visibility at night and in poor weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction:\u003c\/strong\u003e Plastic chrome housing with a heavy duty foam gasket helps seal the light against vibration and road spray for longer life on heavy trucks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow power draw:\u003c\/strong\u003e LEDs draw less current and generate less heat than incandescent bulbs, which reduces electrical load on 12V systems and improves longevity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete 5-piece set:\u003c\/strong\u003e Package includes five matching cab marker lights sized for multi-light roof installations on long-hood trucks and sleepers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe Partsam 5PCS 21LED lights are best for professional drivers and owner-operators running Kenworth, Peterbilt, Freightliner, International, Mack, Paccar and similar heavy duty trucks who need a bright, modern upgrade to roof marker lights and are comfortable with a hardwired install. The lights suit fleets and DIY mechanics who value lower power draw, improved visibility and a clean chrome look.\u003c\/p\u003e\n\u003cp\u003eThese are not ideal for buyers who require a plug-and-play replacement or who have nonstandard mounting hole patterns without the ability to modify the base. Always measure the existing marker light and confirm the approx. 15.55 in by 3.54 in size and 9.84 in hole distance before ordering.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBright amber output from 21 LEDs offers superior visibility compared with incandescent markers.\u003c\/li\u003e\n\u003cli\u003eHeavy duty foam gasket and chrome housing provide a professional, sealed appearance and durability.\u003c\/li\u003e\n\u003cli\u003eLower current draw and less heat improve electrical efficiency and reduce maintenance frequency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot plug-and-play; each light is hardwired with two leads so installation takes basic wiring skills.\u003c\/li\u003e\n\u003cli\u003eFunctionality reports are mixed by some users, so a small percentage may experience fit or electrical issues that require troubleshooting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePartsam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel quantity\u003c\/td\u003e\n\u003ctd\u003e5 PCS cab marker lights\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLED count\u003c\/td\u003e\n\u003ctd\u003e21 LEDs per light\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eAmber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput\u003c\/td\u003e\n\u003ctd\u003e12 Volt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eApprox. 15.55 in L x 3.54 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHole distance\u003c\/td\u003e\n\u003ctd\u003eApprox. 9.84 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Partsam 5PCS 21LED cab marker lights are a practical, value-minded upgrade for heavy duty truck owners who want brighter, cooler-running amber roof markers and a sealed chrome housing. They represent good value for fleets and DIYers who can hardwire the units and confirm size compatibility, though buyers seeking plug-and-play simplicity may need a different option.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these lights plug-and-play?\u003c\/strong\u003e\u003cbr\u003eNo. These marker lights are hardwired and supplied with two leads; white is negative and black is positive, so basic wiring is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill they fit my Kenworth or Peterbilt?\u003c\/strong\u003e\u003cbr\u003eThey are designed for many heavy duty trucks including Kenworth and Peterbilt but you should measure your current marker light and compare to the approx. 15.55 in by 3.54 in size and 9.84 in hole distance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo they run on truck 12V systems?\u003c\/strong\u003e\u003cbr\u003eYes, the lights operate on a 12 Volt input and use LEDs that draw less current than incandescent bulbs.\u003c\/p\u003e","brand":"Partsam","offers":[{"title":"Default Title","offer_id":48622073512155,"sku":"B08HPCT645","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71Z1qeymgML._AC_SL1500.jpg?v=1778515332","url":"https:\/\/gearmusthave.com\/products\/partsam-5pcs-21led-cab-marker-roof-running-top-lights-super-bright","provider":"GearMustHave","version":"1.0","type":"link"}