{"product_id":"orion-bms-02-replacement-harnesses","title":"Orion BMS 02 - Replacement Harnesses","description":"\u003c!-- Orion Replacement Harnesses — SEO\/AI-Optimized Product Description --\u003e\n\u003cdiv class=\"orh-wrap\"\u003e\n\u003c!-- Hero --\u003e\n\u003cdiv class=\"orh-hero\"\u003e\n\u003cdiv class=\"orh-hero__text\"\u003e\n\u003ch1\u003eOrion Replacement Harnesses\u003c\/h1\u003e\n\u003cp class=\"lede\"\u003eOEM-grade Orion BMS harnesses for \u003cstrong\u003eStandard (legacy)\u003c\/strong\u003e\u003cstrong\u003eOrion 02\u003c\/strong\u003eand \u003cstrong\u003eThermistor Expansion Module\u003c\/strong\u003econtrollers. Choose Main I\/O, Current Sensor + Thermistors, Cell Tap harnesses in 6' and 12' lengths, TEM I\/O, TEM Extension Harness, or TEM Thermistors.\u003c\/p\u003e\n\u003cul class=\"pill-list\"\u003e\n\u003cli\u003eAutomotive-grade terminals\u003c\/li\u003e\n\u003cli\u003eCorrect pinouts\u003c\/li\u003e\n\u003cli\u003eLabeled leads\u003c\/li\u003e\n\u003cli\u003eStocked\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Quick selector --\u003e\n\u003csection class=\"orh-section\"\u003e\n\u003ch2\u003eQuick selector\u003c\/h2\u003e\n\u003c!-- Main I\/O --\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eMain I\/O Harness\u003c\/h3\u003e\n\u003cp class=\"muted\"\u003e6 ft Main I\/O harness for Orion Standard (legacy) and Orion 02 controllers.\u003c\/p\u003e\n\u003cdiv class=\"table-scroll\"\u003e\n\u003ctable class=\"orh-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003ePart\u003c\/th\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eCompatibility\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain I\/O Harness\u003c\/td\u003e\n\u003ctd\u003e\u003ccode\u003eCWHMIO3\u003c\/code\u003e\u003c\/td\u003e\n\u003ctd\u003e6 ft (1.8 m)\u003c\/td\u003e\n\u003ctd\u003eOrion (legacy) \u0026amp; Orion 02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Current Sensor + Thermistors --\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eCurrent Sensor + 8 Thermistors Harness\u003c\/h3\u003e\n\u003cp class=\"muted\"\u003eEight (8) thermistors (2 m each) pre-wired into the current-sensor connector.\u003c\/p\u003e\n\u003cdiv class=\"table-scroll\"\u003e\n\u003ctable class=\"orh-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003ePart\u003c\/th\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003eThermistors\u003c\/th\u003e\n\u003cth\u003eCompatibility\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Sensor + 8 Thermistors Harness\u003c\/td\u003e\n\u003ctd\u003e\u003ccode\u003eCWHCRTH8\u003c\/code\u003e\u003c\/td\u003e\n\u003ctd\u003e8 × 2 m\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eOrion 02 only\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e Not for legacy Orion Standard controllers.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Cell tap harnesses --\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eCell Tap Harnesses (Orion 02 only)\u003c\/h3\u003e\n\u003cp class=\"muted\"\u003eChoose series count and length for your pack topology.\u003c\/p\u003e\n\u003ch4\u003e6 ft (1.8 m)\u003c\/h4\u003e\n\u003cdiv class=\"table-scroll\"\u003e\n\u003ctable class=\"orh-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eCells\u003c\/th\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eCompatibility\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e12-cell tap\u003c\/td\u003e\n\u003ctd\u003e\u003ccode\u003eCWH126G\u003c\/code\u003e\u003c\/td\u003e\n\u003ctd\u003e6 ft\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eOrion 02 only\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e24-cell tap\u003c\/td\u003e\n\u003ctd\u003e\u003ccode\u003eCWH246G\u003c\/code\u003e\u003c\/td\u003e\n\u003ctd\u003e6 ft\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eOrion 02 only\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e36-cell tap\u003c\/td\u003e\n\u003ctd\u003e\u003ccode\u003eCWH366G\u003c\/code\u003e\u003c\/td\u003e\n\u003ctd\u003e6 ft\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eOrion 02 only\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch4\u003e12 ft (3.7 m)\u003c\/h4\u003e\n\u003cdiv class=\"table-scroll\"\u003e\n\u003ctable class=\"orh-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eCells\u003c\/th\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eCompatibility\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e12-cell tap\u003c\/td\u003e\n\u003ctd\u003e\u003ccode\u003eCWH1212G\u003c\/code\u003e\u003c\/td\u003e\n\u003ctd\u003e12 ft\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eOrion 02 only\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e24-cell tap\u003c\/td\u003e\n\u003ctd\u003e\u003ccode\u003eCWH2412G\u003c\/code\u003e\u003c\/td\u003e\n\u003ctd\u003e12 ft\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eOrion 02 only\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e36-cell tap\u003c\/td\u003e\n\u003ctd\u003e\u003ccode\u003eCWH3612G\u003c\/code\u003e\u003c\/td\u003e\n\u003ctd\u003e12 ft\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eOrion 02 only\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eTip:\u003c\/strong\u003e Keep tap leads tidy and away from HV cabling; follow Orion routing\/strain-relief guidelines for best EMI performance.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- Guidance --\u003e\n\u003csection class=\"orh-section\"\u003e\n\u003ch2\u003eSelection \u0026amp; installation tips\u003c\/h2\u003e\n\u003cul class=\"bullets\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatch your controller:\u003c\/strong\u003e Main I\/O fits legacy Orion and Orion 02; Current Sensor + 8 Thermistors and Cell Tap harnesses are \u003cem\u003eOrion 02 only\u003c\/em\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength matters:\u003c\/strong\u003e Use the shortest length that reaches cleanly; avoid tight bends near connectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEMI hygiene:\u003c\/strong\u003e Separate tap harnesses from HV busbars and traction cabling; maintain shielding\/grounds per manual.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLabeling:\u003c\/strong\u003e Verify tap order before connection; a \u003ca rel=\"noopener\" href=\"https:\/\/evolveelectrics.com\/collections\/battery-management-systems\/products\/orion-bms-cell-tap-validator\" target=\"_blank\"\u003eCell Wiring Validator\u003c\/a\u003e can save hours.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- Accessories (cross-sell) --\u003e\n\u003csection class=\"orh-section\"\u003e\n\u003ch2\u003eHelpful Orion accessories\u003c\/h2\u003e\n\u003cul class=\"bullets\"\u003e\n\u003cli\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/evolveelectrics.com\/collections\/battery-management-systems\/products\/orion-bms-soc-meter-w-data-logging\" target=\"_blank\"\u003eSOC Display w\/ Data Logging\u003c\/a\u003e — CAN logging 100 ms to 10 s.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/evolveelectrics.com\/collections\/battery-management-systems\/products\/orion-bms-cell-tap-validator\" target=\"_blank\"\u003eCell Wiring Validator\u003c\/a\u003e — Confirms correct tap order before first power-on.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/evolveelectrics.com\/collections\/battery-management-systems\/products\/thermistor-expansion-module\" target=\"_blank\"\u003eThermistor Expansion Module\u003c\/a\u003e — Add up to 80 thermistors per module.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/evolveelectrics.com\/collections\/battery-management-systems\/products\/orion-bms-wifi-connection-tool\" target=\"_blank\"\u003eOrion BMS Connect\u003c\/a\u003e — Remote monitoring and diagnostics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- FAQs --\u003e\n\u003csection class=\"orh-section\"\u003e\n\u003ch2\u003eFAQs\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these harnesses compatible with the legacy Orion (pre-O2)?\u003c\/summary\u003e\n\u003cp\u003e\u003cstrong\u003eMain I\/O (CWHMIO3)\u003c\/strong\u003e is compatible with both legacy Orion and Orion 02. \u003cstrong\u003eCWHCRTH8\u003c\/strong\u003e and all \u003cstrong\u003eCell Tap\u003c\/strong\u003e harnesses listed are Orion 02 only.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose 12\/24\/36-cell tap harnesses?\u003c\/summary\u003e\n\u003cp\u003eMatch the harness to the tap header count on your Orion 02 and the segment size (12\/24\/36 cells). Use multiple harnesses to cover the full series count.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I mix 6' and 12' harnesses in one pack?\u003c\/summary\u003e\n\u003cp\u003eYes. Keep lengths consistent per segment for neat routing and even slack management; avoid unnecessary excess length.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo you offer custom lengths or assemblies?\u003c\/summary\u003e\n\u003cp\u003eContact \u003ca href=\"\/pages\/contact\"\u003eEVolve Engineering\u003c\/a\u003e for custom harnessing, breakouts, and labeling.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c!-- Scoped styles --\u003e\n\u003cstyle\u003e\n  .orh-wrap{ --brand:#6EB749; --ink:#0F172A; --muted:#64748B; --line:#E5E7EB; --bg:#FFFFFF;\n    color:var(--ink); font-family:system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial,sans-serif; }\n\n  .orh-hero{ display:block; margin-bottom:.5rem; }\n  .orh-hero__text h1{ margin:.25rem 0 .5rem; font-size:1.6rem; }\n  .lede{ color:var(--ink); font-size:1rem; margin:.5rem 0 .75rem; }\n  .pill-list{ display:flex; gap:.5rem; flex-wrap:wrap; padding:0; margin:0; list-style:none; }\n  .pill-list li{ border:1px solid rgba(110,183,73,.35); color:#2F6B18; background:rgba(110,183,73,.08);\n    border-radius:999px; padding:4px 10px; font-weight:700; font-size:.8rem; }\n\n  .orh-section{ margin-top:1rem; }\n  .card{ border:1px solid var(--line); border-radius:12px; background:#fff; padding:12px; margin:.6rem 0; }\n  .muted{ color:var(--muted); }\n\n  .table-scroll{ overflow:auto; -webkit-overflow-scrolling:touch; border-radius:10px; border:1px solid var(--line); background:#fff; }\n  .orh-table{ width:100%; border-collapse:separate; border-spacing:0; }\n  .orh-table th, .orh-table td{ padding:10px 12px; text-align:left; font-size:.95rem; }\n  .orh-table thead th{ background:#F3F4F6; color:var(--muted); font-weight:800; text-transform:uppercase; font-size:.8rem; letter-spacing:.4px; }\n  .orh-table tbody tr:nth-child(odd){ background:#FAFAFB; }\n  .orh-table code{ background:#F1F5F9; padding:2px 6px; border-radius:6px; font-family:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }\n\n  .bullets{ padding-left:1.2rem; margin:.25rem 0; }\n  .bullets li{ margin:.25rem 0; }\n\n  .note{ margin:.6rem 0 0; padding:.6rem .75rem; border:1px dashed var(--line); border-radius:8px; background:#FAFAFB; color:var(--muted); }\n\n  details{ border:1px solid var(--line); border-radius:10px; padding:.5rem .75rem; margin:.45rem 0; background:#fff; }\n  summary{ cursor:pointer; font-weight:700; }\n\u003c\/style\u003e\n\u003c!-- FAQ JSON-LD (AI\/SEO assist) --\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Orion","offers":[{"title":"Main I\/O - CWHMIO3","offer_id":43066511720546,"sku":"CWHMIO3","price":63.0,"currency_code":"USD","in_stock":true},{"title":"Current Sensor Harness + 8 Thermistors Harness - CWHCRTH8","offer_id":43066511753314,"sku":"CWHCRTH8","price":66.0,"currency_code":"USD","in_stock":true},{"title":"12 Cell Tap Harness 6' - CWH126G","offer_id":43066511786082,"sku":"CWH126G","price":34.0,"currency_code":"USD","in_stock":true},{"title":"24 Cell Tap Harness 6' - CWH246G","offer_id":43066511818850,"sku":"CWH246G","price":61.0,"currency_code":"USD","in_stock":true},{"title":"36 Cell Tap Harness 6' - CWH366G","offer_id":43066511851618,"sku":"CWH366G","price":91.0,"currency_code":"USD","in_stock":true},{"title":"12 Cell Tap Harness 12' - CWH1212G","offer_id":43066511884386,"sku":"CWH1212G","price":43.0,"currency_code":"USD","in_stock":true},{"title":"24 Cell Tap Harness 12' - CWH2412G","offer_id":43066511917154,"sku":"CWH2412G","price":96.0,"currency_code":"USD","in_stock":true},{"title":"36 Cell Tap Harness 12' - CWH3612G","offer_id":43066511949922,"sku":"CWH3612G","price":129.0,"currency_code":"USD","in_stock":true},{"title":"TEM - THERM2002 - (20) 0.2M Thermistors","offer_id":43066511982690,"sku":null,"price":44.0,"currency_code":"USD","in_stock":true},{"title":"TEM - CWHTHEX202 - (20) Lead Thermistor Harness","offer_id":43066512015458,"sku":null,"price":33.0,"currency_code":"USD","in_stock":true},{"title":"TEM - CWHTHEXPO2 - I\/O Harness","offer_id":43066512048226,"sku":null,"price":29.0,"currency_code":"USD","in_stock":true},{"title":"TEM - THERM2M20 - (20) 2M Thermistors","offer_id":43066512080994,"sku":null,"price":97.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1820\/0269\/products\/Orion_BMS_O2_IOHarness_Image_CWHMIO3.png?v=1738283225","url":"https:\/\/evolveelectrics.com\/products\/orion-bms-02-replacement-harnesses","provider":"EVolve Electrics","version":"1.0","type":"link"}