{"product_id":"hp5-stroker-shaft-1gd-4jj3-18mm-fusetech","title":"HP5 Stroker Shaft - 1GD\/4JJ3 Stroker Shaft - 18mm - Fusetech","description":"\u003c!-- ==================== Product: HP5 Stroker Shaft - 1GD\/4JJ3 Stroker Shaft - 18mm - FuseTech ==================== --\u003e\n\u003cdiv class=\"product-description\"\u003e\n\u003ch1 style=\"text-align: center;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eHP5 Stroker Shaft - 1GD\/4JJ3 - 18mm - FuseTech\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2 style=\"text-align: center; margin: 0 0 10px;\"\u003e+50% Stroke Increase | Built for High RPM Delivery | Made in Thailand 🇹🇭\u003c\/h2\u003e\n\u003c!-- ===== TRUST BADGES ===== --\u003e\n\u003cdiv class=\"crc-badges\"\u003e\n\u003cspan class=\"badge-fusetech\"\u003e⚡ FuseTech Performance\u003c\/span\u003e \u003cspan class=\"badge-red\"\u003e+50% Stroke Increase 🔥\u003c\/span\u003e \u003cspan class=\"badge-blue\"\u003e💳 Afterpay • Humm • Klarna • Zip\u003c\/span\u003e \u003cspan class=\"badge-black\"\u003e🚚 Free Express Shipping AU\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp\u003eUnleash the full fuel delivery potential of your HP5 pump with the \u003cstrong\u003eFuseTech 18mm Stroker Shaft\u003c\/strong\u003e – designed specifically for 1GD-FTV and 4JJ3 engines. This precision-machined upgrade increases stroke from the factory ~12mm to a massive 18mm — a \u003cstrong\u003e+50% lift gain\u003c\/strong\u003e that helps deliver higher rail pressure and better fuel volume at every RPM.\u003c\/p\u003e\n\u003cp\u003eFlow rate example:\u003c\/p\u003e\n\u003cp\u003eStandard HP5 @ 1500rpm\/2000bar - 29L\/PH.\u003c\/p\u003e\n\u003cp\u003eFusetech 16mm shaft HP5 @ 1500rpm\/2000bar - 42L\/PH.\u003c\/p\u003e\n\u003cp style=\"background: #ffebee; padding: 12px; border-radius: 4px; margin: 16px 0; border-left: 4px solid #c62828;\"\u003e\u003cstrong style=\"color: #c62828;\"\u003e⚠️ PROFESSIONAL INSTALLATION REQUIRED:\u003c\/strong\u003e HP5 pump disassembly\/reassembly requires specialized knowledge. Custom ECU calibration mandatory.\u003c\/p\u003e\n\u003chr\u003e\n\u003cdetails open=\"\"\u003e \u003csummary\u003e🔥 Why Upgrade to an 18mm HP5 Stroker Shaft?\u003c\/summary\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e+50% Stroke Increase:\u003c\/strong\u003e Stock stroke is ~12mm – this shaft delivers 18mm for serious fueling gains\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-RPM Ready:\u003c\/strong\u003e Supports aggressive tuning and larger injectors with reduced pressure drop-off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Machined:\u003c\/strong\u003e Built for long-term reliability under extreme loads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in Thailand:\u003c\/strong\u003e Engineered and manufactured to exacting FuseTech standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails open=\"\"\u003e \u003csummary\u003e✅ Vehicle Compatibility\u003c\/summary\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1GD-FTV:\u003c\/strong\u003e Toyota Hilux, Prado \u0026amp; Fortuner \u003cem\u003e(pre I-ART system only)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4JJ3:\u003c\/strong\u003e Isuzu D-MAX, MU-X \u0026amp; Mazda BT-50 (2020+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"background: #fff3cd; padding: 10px; border-radius: 4px; margin-top: 8px;\"\u003e\u003cstrong\u003e⚠️ IMPORTANT:\u003c\/strong\u003e Does NOT fit I-ART versions of 1GD. If unsure, send us your VIN for confirmation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails open=\"\"\u003e \u003csummary\u003e📦 What's Included\u003c\/summary\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eFuseTech 18mm HP5 Stroker Shaft\u003c\/li\u003e\n\u003cli\u003eProtective packaging\/sleeve\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: .95em; color: #555; margin-top: 8px;\"\u003e\u003cem\u003eInstallation hardware handled by pump builder.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails open=\"\"\u003e \u003csummary\u003e🔧 Technical \u0026amp; Installation Notes\u003c\/summary\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional installation strongly recommended\u003c\/strong\u003e — HP5 requires precise assembly and cleanliness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom ECU calibration required\u003c\/strong\u003e to safely command additional delivery\u003c\/li\u003e\n\u003cli\u003eVerify overall fuel system health (rail sensor, relief\/blank, injectors, lines) before tuning\u003c\/li\u003e\n\u003cli\u003eFor off-road\/competition applications where permitted\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails open=\"\"\u003e \u003csummary\u003e💳 Payment \u0026amp; Shipping Options\u003c\/summary\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e💸 \u003cstrong\u003eBuy Now, Pay Later:\u003c\/strong\u003e Afterpay, Humm, Klarna \u0026amp; Zip available\u003c\/li\u003e\n\u003cli\u003e✈️ \u003cstrong\u003eFree Express Shipping Australia-Wide\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e📦 Typically ships same or next business day\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: .95em; color: #555; margin-top: 8px;\"\u003e\u003cem\u003eIf not in stock, dispatch may take 2–3 weeks. Message us if you need it urgently.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails open=\"\"\u003e \u003csummary\u003e⚠️ Legal Notice\u003c\/summary\u003e\n\u003cdiv\u003e\n\u003cp style=\"background: #fff3cd; padding: 10px; border-radius: 4px;\"\u003e\u003cstrong\u003eFor off-road \/ competition use only.\u003c\/strong\u003e Fuel system modifications may affect compliance. Check local regulations before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails open=\"\"\u003e \u003csummary\u003e❓ Frequently Asked Questions\u003c\/summary\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this fit I-ART versions of 1GD?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: No — this shaft suits \u003cstrong\u003epre I-ART 1GD-FTV\u003c\/strong\u003e only. If unsure, send us your VIN and we'll confirm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I need tuning after installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes — a \u003cstrong\u003ecustom ECU calibration\u003c\/strong\u003e is required to command the additional delivery safely and avoid rail pressure faults.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What rail pressure gains should I expect?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The 18mm stroke provides substantially more pump displacement. Actual rail pressure gains depend on injector condition, relief strategy (or rail blank), and tuner settings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I install this at home?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: We \u003cstrong\u003estrongly recommend\u003c\/strong\u003e a professional pump builder. The HP5 requires precise assembly, clearances and cleanliness to avoid premature failure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is it road legal?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Fuel system modifications may affect compliance. This product is intended for \u003cstrong\u003eoff-road\/competition use\u003c\/strong\u003e where permitted. Check local regulations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this work with larger injectors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes — the increased stroke helps maintain rail pressure when running larger injectors, especially at high RPM.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003c!-- GREEN BANNER CTA - FuseTech Theme --\u003e\n\u003cdiv style=\"background: linear-gradient(135deg, #00c853 0%, #00c853 100%); color: #ffffff; padding: 20px; text-align: center; margin: 20px 0; border-radius: 6px; box-shadow: 0 0 25px rgba(0, 200, 83, 0.6), 0 0 40px rgba(0, 200, 83, 0.4), 0 0 60px rgba(0, 200, 83, 0.2);\"\u003e\n\u003ch2 style=\"margin: 0 0 10px; font-size: 20px; color: #fff; text-shadow: 0 0 10px rgba(0,0,0,0.3);\"\u003e\u003cstrong\u003e⚡ FEED YOUR BUILD PROPERLY\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp style=\"margin: 0; font-size: 15px; color: #fff; text-shadow: 0 0 5px rgba(0,0,0,0.3);\"\u003e\u003cem\u003eFuseTech 18mm stroker shaft. +50% stroke. High-RPM ready. Professional installation required. Made in Thailand.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 12px; opacity: .8; margin-top: 16px;\"\u003e\u003cstrong\u003eDisclaimer:\u003c\/strong\u003e Common Rail Cowboys is not affiliated with Toyota Motor Corporation or Isuzu Motors. Installation should be performed by a qualified HP5 pump specialist. Fitment verification and proper tuning are the buyer's responsibility.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FuseTech","offers":[{"title":"Default Title","offer_id":43735547052086,"sku":"HP5-18MM-SHAFT","price":1154.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0567\/7868\/6518\/files\/rn-image_picker_lib_temp_3a578338-d1c9-4f32-8c16-aa11a561919f.jpg?v=1747213851","url":"https:\/\/www.commonrailcowboys.com\/en-nz\/products\/hp5-stroker-shaft-1gd-4jj3-18mm-fusetech","provider":"Common Rail Cowboys","version":"1.0","type":"link"}