{"product_id":"2015-2023-hemi-hellcat-standalone-braided-loom-wiring-harness-8hp-transmission-swap-harness","title":"2015–2023 Hemi Hellcat Standalone BRAIDED LOOM Wiring Harness | 8HP Transmission Swap Harness","description":"\u003cstyle\u003e\n.hpi-product{--hpi-red:#b10000;--hpi-gold:#f3b502;box-sizing:border-box;width:100%;margin:24px auto;color:#222;font-family:inherit;font-size:16px;line-height:1.7;overflow-wrap:anywhere}\n.hpi-product *{box-sizing:border-box}\n.hpi-product .hpi-hero{padding:32px;background:#151515;border-top:5px solid var(--hpi-red);border-bottom:3px solid var(--hpi-gold);border-radius:12px;color:#fff}\n.hpi-product .hpi-eyebrow{color:var(--hpi-gold);font-size:12px;font-weight:800;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:12px}\n.hpi-product h2{font-size:clamp(24px,3vw,36px);line-height:1.2;margin:0 0 16px;font-weight:800;color:inherit}\n.hpi-product .hpi-highlight{color:var(--hpi-gold)}\n.hpi-product p{margin:0 0 16px;color:inherit}\n.hpi-product p:last-child{margin-bottom:0}\n.hpi-product .hpi-section{padding:28px 0;border-bottom:1px solid #e5e5e5}\n.hpi-product h3{font-size:24px;line-height:1.3;margin:0 0 18px;color:var(--hpi-red);font-weight:800}\n.hpi-product h4{font-size:18px;line-height:1.4;margin:0 0 10px;color:#171717;font-weight:800}\n.hpi-product .hpi-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}\n.hpi-product .hpi-card{padding:22px;background:#f7f7f7;border:1px solid #e5e5e5;border-top:4px solid var(--hpi-red);border-radius:10px}\n.hpi-product .hpi-fitment{padding:22px;background:#fafafa;border:1px solid #e5e5e5;border-radius:10px}\n.hpi-product .hpi-list{padding-left:24px;margin:0;list-style:disc}\n.hpi-product .hpi-list li{padding-left:4px;margin-bottom:10px}\n.hpi-product .hpi-list li::marker{color:var(--hpi-red)}\n.hpi-product .hpi-note{margin-top:20px;padding:16px;background:#fff7de;border-left:4px solid var(--hpi-gold);color:#292929}\n.hpi-product .hpi-faq-item{padding:18px 0;border-bottom:1px solid #e5e5e5}\n.hpi-product .hpi-faq-item:last-child{border-bottom:0;padding-bottom:0}\n.hpi-product .hpi-cta{margin-top:28px;padding:28px;background:#151515;border-left:5px solid var(--hpi-red);border-radius:10px;color:#fff}\n.hpi-product .hpi-cta h3{color:var(--hpi-gold)}\n.hpi-product .hpi-order-note{font-weight:700}\n@media(max-width:640px){.hpi-product .hpi-grid{grid-template-columns:1fr}.hpi-product .hpi-hero,.hpi-product .hpi-cta{padding:22px}.hpi-product .hpi-card,.hpi-product .hpi-fitment{padding:18px}.hpi-product h3{font-size:22px}.hpi-product .hpi-section{padding:24px 0}}\n.hpi-product a{color:#b10000;text-decoration:underline;text-underline-offset:3px}.hpi-product img{max-width:100%;height:auto}.hpi-product .hpi-cta a{color:#f3b502}.hpi-product .hpi-button-static{margin-top:18px;font-weight:700}.hpi-product a:focus-visible{outline:3px solid #f3b502;outline-offset:3px}\n\u003c\/style\u003e\n\u003cdiv class=\"hpi-product\"\u003e\n\u003cdiv class=\"hpi-hero\"\u003e\n\u003cdiv class=\"hpi-eyebrow\"\u003eHemi Standalone Wiring Harness\u003c\/div\u003e\n\u003ch2\u003e2015–2023 Car Hemi Hellcat Standalone BRAIDED LOOM  Wiring Harness for 8HP Transmission Swaps\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ch2 id=\"subTitle\" class=\"it-sttl\"\u003e\u003cspan\u003eThis harness comes with the 8HP transmission sub harness. It will connect to our harness. \u003c\/span\u003e\u003c\/h2\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFinish your Hemi Hellcat swap with a cleaner, easier-to-install wiring solution built for \u003cspan class=\"hpi-highlight\"\u003e2015–2023 car-based Hemi 5.7L and 6.4L applications\u003c\/span\u003e. This standalone harness is designed for builders using an \u003cspan class=\"hpi-highlight\"\u003e8HP transmission\u003c\/span\u003e and factory Hemi engine harness while simplifying the wiring needed to power the engine in custom builds, older vehicles, and hot rods.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hpi-section\"\u003e\n\u003ch3\u003eQuick Answers\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003e2015–2023 Car Hemi Hellcat standalone wiring harness\u003c\/strong\u003e is built for \u003cstrong\u003e5.7L and 6.4L USA Hemi Hellcat engines\u003c\/strong\u003e from \u003cstrong\u003eCharger, Challenger, and 300C models\u003c\/strong\u003e. It supports \u003cstrong\u003e8HP transmission swaps\u003c\/strong\u003e, includes a \u003cstrong\u003eSound German Automotive 8HP transmission harness and computer kit\u003c\/strong\u003e, features premium braided wire cover, labeled wire ends, and plug-and-play connection into your existing factory Hemi engine harness and ECM.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hpi-section\"\u003e\n\u003ch3\u003eWhy This Harness Makes Sense\u003c\/h3\u003e\n\u003cdiv class=\"hpi-grid\"\u003e\n\u003cdiv class=\"hpi-card\"\u003e\n\u003ch4\u003eBuilt for 8HP Hemi Hellcat Swaps\u003c\/h4\u003e\n\u003cp\u003eDesigned for builders swapping a 2015–2023 car-based Hemi Hellcat engine with an 8HP transmission into older vehicles, hot rods, and custom projects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hpi-card\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"hpi-card\"\u003e\n\u003ch4\u003eCleaner Install\u003c\/h4\u003e\n\u003cp\u003ePremium braided wire covering and labeled wire ends help reduce wiring confusion and create a cleaner, more professional engine bay layout.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hpi-card\"\u003e\n\u003ch4\u003eSwap-Focused Tech Support\u003c\/h4\u003e\n\u003cp\u003ePhone tech support is included, giving Hemi Hellcat swap builders extra help when wiring, tuning, and finishing their project.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hpi-section\"\u003e\n\u003ch3\u003eFitment and Compatibility\u003c\/h3\u003e\n\u003cdiv class=\"hpi-fitment\"\u003e\n\u003cul class=\"hpi-list\"\u003e\n\u003cli\u003e\u003cstrong\u003e2015–2023 car-based Hemi Hellcat applications\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e5.7L Hemi engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e6.4L Hemi engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2015–2023 Dodge Charger\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2015–2023 Dodge Challenger\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2015–2023 Chrysler 300C-style Hemi Hellcat applications\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAll 8HP transmissions\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eDesigned to plug into your existing factory Hemi engine harness\u003c\/li\u003e\n\u003cli\u003eDesigned to work with your existing factory ECM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"hpi-note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e You will still need the factory engine harness on the engine. This HPI harness plugs into the existing factory Hemi engine harness and ECM.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hpi-section\"\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul class=\"hpi-list\"\u003e\n\u003cli\u003ePremium \u003cstrong\u003ebraided wire cover\u003c\/strong\u003e at no extra cost\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug and play connection\u003c\/strong\u003e into your existing Hemi engine harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLabeled wire ends\u003c\/strong\u003e for 12V power, ground, fuel pump, starter, and more\u003c\/li\u003e\n\u003cli\u003eSupport for \u003cstrong\u003eall 8HP transmissions\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePhone tech support included\u003c\/li\u003e\n\u003cli\u003eBuilt for \u003cstrong\u003estandalone Hemi engine swap projects\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePlug-and-play full harness connectivity for \u003cstrong\u003e2005–2022 Charger\/Challenger dual electric fans\u003c\/strong\u003e — non-PWM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hpi-section\"\u003e\n\u003ch3\u003e8HP Transmission Notes\u003c\/h3\u003e\n\u003cp\u003eThis harness supports \u003cstrong\u003e8HP swaps\u003c\/strong\u003e with the majority of FCA calibrations only. Some TCMs may require reprogramming, and support is being expanded as issues arise.\u003c\/p\u003e\n\u003cdiv class=\"hpi-note\"\u003e\n\u003cstrong\u003eTCM Note:\u003c\/strong\u003e Some 8HP transmission control modules may require reprogramming depending on the calibration and swap combination.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hpi-section\"\u003e\n\u003ch3\u003eBuilder Notes\u003c\/h3\u003e\n\u003cp\u003eThis harness is designed as a basic Hemi Hellcat engine swap harness for most older vehicles and hot rods with fewer electronics. It is made to help power the engine in a standalone swap setup while keeping the installation cleaner and easier to manage.\u003c\/p\u003e\n\u003cp\u003eThis harness comes standard with \u003cstrong\u003eAC command control\u003c\/strong\u003e for your factory Hemi AC compressor. It does not include provisions for factory gauges or other accessories such as heat, cruise control, ABS, and similar factory vehicle systems. Those items will need to be added by the end user as desired.\u003c\/p\u003e\n\u003cdiv class=\"hpi-note\"\u003e\n\u003cstrong\u003eFuel Pump Note:\u003c\/strong\u003e Use of high-power or high-amp fuel pumps requires a second fuel pump relay.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hpi-section\"\u003e\n\u003ch3\u003eAvailable Support Services\u003c\/h3\u003e\n\u003cul class=\"hpi-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhone tech support\u003c\/strong\u003e is included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMail order tuning\u003c\/strong\u003e starting at $100.00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase tunes\u003c\/strong\u003e starting at $100.00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote tuning\u003c\/strong\u003e starting at $200.00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBasic tuning training\u003c\/strong\u003e starting at $350.00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced tuning\u003c\/strong\u003e starting at $600.00\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hpi-section\"\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv class=\"hpi-faq-item\"\u003e\n\u003ch4\u003eWhat engines does this harness work with?\u003c\/h4\u003e\n\u003cp\u003eThis harness is designed for \u003cstrong\u003e2015–2023 car-based Hemi Hellcat 5.7L and 6.4L USA engines\u003c\/strong\u003e, including Charger, Challenger, and 300C applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hpi-faq-item\"\u003e\n\u003ch4\u003eDoes this harness support the 8HP transmission?\u003c\/h4\u003e\n\u003cp\u003eYes. This harness supports \u003cstrong\u003eall 8HP transmissions\u003c\/strong\u003e and includes the Sound German Automotive 8HP transmission harness and computer kit needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hpi-faq-item\"\u003e\n\u003ch4\u003eDoes this replace the factory engine harness?\u003c\/h4\u003e\n\u003cp\u003eNo. You still need the factory engine harness on the engine. This HPI harness is designed to plug into your existing factory engine harness and ECM.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hpi-faq-item\"\u003e\n\u003ch4\u003eIs this harness plug and play?\u003c\/h4\u003e\n\u003cp\u003eIt is designed to plug into your existing Hemi engine harness and ECM, with labeled wire ends for key connections such as power, ground, fuel pump, and starter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hpi-faq-item\"\u003e\n\u003ch4\u003eIs tech support included?\u003c\/h4\u003e\n\u003cp\u003eYes. Phone tech support is included, and HPI also offers mail order tuning, base tunes, remote tuning, and tuning training services.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hpi-cta\"\u003e\n\u003ch3\u003eReady to Simplify Your 8HP Hemi hellcat Swap?\u003c\/h3\u003e\n\u003cp\u003eGet a \u003cstrong\u003e2015–2023 Hemi standalone wiring harness\u003c\/strong\u003e built for cleaner installation, easier hookup, 8HP transmission support, and real swap-focused tech support.\u003c\/p\u003e\n\u003ca href=\"\/collections\/wiring-harnesses\" class=\"hpi-button\"\u003eShop Wiring Harnesses\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"High Performance Injectors","offers":[{"title":"Default Title","offer_id":67655799111732,"sku":"sku-45306313834693","price":2299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/0441\/0420\/files\/trans_hemi_pic.jpg?v=1791272315","url":"https:\/\/carkart.com\/products\/2015-2023-hemi-hellcat-standalone-braided-loom-wiring-harness-8hp-transmission-swap-harness","provider":"Carkart","version":"1.0","type":"link"}