{"product_id":"4jj1-4jk1-pre-dpf-2005-2016-alloy-rocker-cover-performance-camshaft-set-intake-exhaust-fuse-tech","title":"4JJ1 \/ 4JK1 Pre-DPF (2005-2016 Alloy Rocker Cover) Performance Camshaft Set (Intake + Exhaust) - Fuse Tech","description":"\u003c!-- ==================== Product: 4JJ1 \/ 4JK1 Alloy Rocker Cover (2005-2016) Performance Camshaft Set (Intake + Exhaust) | FuseTech ==================== --\u003e\n\u003cstyle\u003e\n.product-description details summary{cursor:pointer;list-style:none;position:relative;padding-left:16px;font-weight:700;margin:10px 0;}\n.product-description details summary::before{content:\"▸\";position:absolute;left:0;color:#00c853;transition:transform .2s;}\n.product-description details[open] summary::before{transform:rotate(90deg);}\n\u003c\/style\u003e\n\u003cdiv class=\"product-description\"\u003e\n\u003ch1 style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cu\u003e🌀 4JJ1 \/ 4JK1 (2005-2016 Alloy Rocker Cover) Performance Camshaft Set - Intake + Exhaust\u003c\/u\u003e\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2 style=\"text-align: center; margin: 0 0 10px;\"\u003eMore Duration. More Airflow. Built for the Pre-DPF Legends | FuseTech\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\" style=\"background:#00c853;color:#0d0d0d;\"\u003e✅ Alloy Rocker Cover 4JJ1 + 4JK1 🔥\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\u003e\u003cstrong\u003eThe camshaft upgrade for the pre-DPF 4JJ1, the engine that built the Aussie tourer scene.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003eFuseTech intake + exhaust camshaft set\u003c\/strong\u003e suits the \u003cstrong\u003ealuminium rocker cover 4JJ1 and 4JK1\u003c\/strong\u003e, the pre-DPF engines fitted in Australia from the mid-2000s to mid-2016 across D-MAX, Colorado RC, RA7 Rodeo and early MU-X. Revised lobe profiles run more lift and duration than the factory sticks, moving more air in and more exhaust energy out for stronger response and top-end pull on tuned builds, especially with an upgraded turbo hanging off the manifold.\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⚠️ PERFORMANCE UPGRADE:\u003c\/strong\u003e Professional installation strongly recommended. Factory camshaft gears must be transferred onto these camshafts, and cam timing must be set correctly. ECU tuning recommended to get the full benefit.\u003c\/p\u003e\n\u003chr\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:16px 0;font-size:14px;\"\u003e\n\u003ctr\u003e\u003cth colspan=\"2\" style=\"background:#00c853;color:#0d0d0d;text-align:left;padding:10px;font-weight:700;\"\u003eSpec Snapshot\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#0d0d0d;color:#f5f5f5;padding:10px;border-bottom:1px solid #1f1f1f;width:38%;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#0d0d0d;color:#f5f5f5;padding:10px;border-bottom:1px solid #1f1f1f;\"\u003eMatched intake + exhaust camshaft pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#0d0d0d;color:#f5f5f5;padding:10px;border-bottom:1px solid #1f1f1f;\"\u003e\u003cstrong\u003eProfile\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#0d0d0d;color:#f5f5f5;padding:10px;border-bottom:1px solid #1f1f1f;\"\u003eIncreased lift \u0026amp; duration over stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#0d0d0d;color:#f5f5f5;padding:10px;border-bottom:1px solid #1f1f1f;\"\u003e\u003cstrong\u003eEngine fitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#0d0d0d;color:#f5f5f5;padding:10px;border-bottom:1px solid #1f1f1f;\"\u003e4JJ1-TC 3.0L \u0026amp; 4JK1 2.5L with aluminium rocker cover (2005 to mid-2016)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#0d0d0d;color:#f5f5f5;padding:10px;border-bottom:1px solid #1f1f1f;\"\u003e\u003cstrong\u003eReplaces OE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#0d0d0d;color:#f5f5f5;padding:10px;border-bottom:1px solid #1f1f1f;\"\u003eIntake 8-98288-940-0 \/ -1 (cross 8-98003-129-3) • Exhaust 8-98288-946-1 (cross 8-98003-130-3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#0d0d0d;color:#f5f5f5;padding:10px;border-bottom:1px solid #1f1f1f;\"\u003e\u003cstrong\u003eCam gears\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#0d0d0d;color:#f5f5f5;padding:10px;border-bottom:1px solid #1f1f1f;\"\u003eFactory gears transferred to new camshafts (reused)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#0d0d0d;color:#f5f5f5;padding:10px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#0d0d0d;color:#f5f5f5;padding:10px;\"\u003eFuseTech Performance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003cdetails open=\"\"\u003e \u003csummary\u003e✅ Key Features\u003c\/summary\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e🌀 \u003cstrong\u003eComplete Set:\u003c\/strong\u003e Intake and exhaust camshafts, matched as a pair\u003c\/li\u003e\n\u003cli\u003e📈 \u003cstrong\u003eMore Lift \u0026amp; Duration:\u003c\/strong\u003e Revised lobe profiles over the factory camshafts for improved airflow and response\u003c\/li\u003e\n\u003cli\u003e🧩 \u003cstrong\u003eCovers 3.0L \u0026amp; 2.5L:\u003c\/strong\u003e The alloy-cover 4JJ1 and 4JK1 share the same camshafts, so one set suits both engines\u003c\/li\u003e\n\u003cli\u003e🔥 \u003cstrong\u003eTurbo-Friendly:\u003c\/strong\u003e More exhaust energy to spool larger turbos, the classic pairing for 44mm+ turbo upgrades\u003c\/li\u003e\n\u003cli\u003e🧰 \u003cstrong\u003eReuses Factory Gears:\u003c\/strong\u003e No proprietary drive gear required, factory cam gears transfer across\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\u003eIsuzu D-MAX - 4JJ1-TC (2008 to mid-2016, pre-DPF)\u003c\/li\u003e\n\u003cli\u003eIsuzu D-MAX - 4JK1 2.5L (alloy rocker cover models)\u003c\/li\u003e\n\u003cli\u003eIsuzu MU-X - 4JJ1-TC (2013 to mid-2016, pre-DPF)\u003c\/li\u003e\n\u003cli\u003eHolden Colorado RC - 4JJ1-TC (2008-2012)\u003c\/li\u003e\n\u003cli\u003eHolden Rodeo RA7 - 4JJ1-TC (2007-2008)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eQuick fitment check (trust this over your build year):\u003c\/strong\u003e aluminium rocker cover + no DPF + injector codes starting \"5F\" or \"72\" = you're in the right place. Plastic rocker cover (DPF-era 4JJ1-TCX from mid-2016, or any 4JJ3) = you need our \u003cstrong\u003e4JJ1 DPF \/ 4JJ3 Performance Camshaft Set\u003c\/strong\u003e instead. Australia changed over around June 2016, so 2016 builds exist on both sides of the line. Check the cover, not the compliance plate.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuying from overseas listings?\u003c\/strong\u003e Thai suppliers label this cam family \"Euro 1\/2\/3\" or \"05-14\" because Thailand switched to the plastic cover engine before Australia did. Ignore the Thai years, the rocker cover material is what matters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails\u003e \u003csummary\u003e📦 What's Included\u003c\/summary\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e1 × FuseTech Performance Intake Camshaft\u003c\/li\u003e\n\u003cli\u003e1 × FuseTech Performance Exhaust Camshaft\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: .95em; color: #555; margin-top: 8px;\"\u003e\u003cem\u003eFactory camshaft gears are reused. Transfer from your original camshafts during installation.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails\u003e \u003csummary\u003e🛠️ Installation \u0026amp; Requirements\u003c\/summary\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional installation strongly recommended.\u003c\/strong\u003e Correct cam timing is critical\u003c\/li\u003e\n\u003cli\u003eFactory camshaft gears must be transferred to the new camshafts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECU tuning recommended\u003c\/strong\u003e to take full advantage of the revised profiles\u003c\/li\u003e\n\u003cli\u003eBest paired with supporting mods: upgraded turbo, exhaust, intercooling and fuel system on high-output builds\u003c\/li\u003e\n\u003cli\u003eContact us to confirm stock availability if timing is critical\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails\u003e \u003csummary\u003e🛡️ Warranty \u0026amp; Returns\u003c\/summary\u003e\n\u003cdiv\u003e\n\u003cp\u003eCovered under our standard policy. See our \u003ca href=\"https:\/\/www.commonrailcowboys.com\/policies\/refund-policy\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRefund, Returns \u0026amp; Warranty Policy\u003c\/a\u003e for full terms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails\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📦 Diesel performance specialists, not general parts resellers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails\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 Engine 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\u003e \u003csummary\u003e❓ Frequently Asked Questions\u003c\/summary\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will these camshafts fit my 2012-2016 pre-DPF D-MAX?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes, provided it has the aluminium rocker cover and no DPF. That's the engine this set is built for, along with all earlier alloy-cover 4JJ1s back to the RA7 Rodeo and RC Colorado.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will they fit the DPF-era 4JJ1 or the 4JJ3?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: No. The plastic rocker cover engines (DPF 4JJ1-TCX from mid-2016 and all 4JJ3s) use a revised roller rocker valvetrain with different camshafts. We stock a separate FuseTech set for those engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do these fit the 4JK1 2.5L?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes. The alloy-cover 4JK1 shares its camshafts with the 4JJ1, so the same set covers both the 2.5L and 3.0L.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What OE part numbers do these replace?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Intake 8-98288-940-0 \/ 8-98288-940-1 (also cross-referenced as 8-98003-129-3) and exhaust 8-98288-946-1 (also cross-referenced as 8-98003-130-3).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I need to reuse my factory cam gears?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes. The factory camshaft gears are transferred from your original camshafts onto the FuseTech camshafts during installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I need a tune after fitting performance camshafts?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: ECU tuning is recommended. You'll feel some improvement from the profiles alone, but the set delivers its best results paired with tuning and supporting airflow mods.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will these camshafts fit a 2012-2016 pre-DPF Isuzu D-MAX 4JJ1?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, provided the engine has the aluminium rocker cover and no DPF. The set fits all alloy rocker cover 4JJ1 engines from 2005 to mid-2016, including D-MAX, MU-X, Holden Colorado RC and RA7 Rodeo.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will these camshafts fit the DPF-era 4JJ1 or the 4JJ3?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. The plastic rocker cover engines, the DPF 4JJ1-TCX fitted in Australia from mid-2016 and all 4JJ3 engines, use a revised roller rocker valvetrain with different camshafts and require a separate camshaft set.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do these camshafts fit the 4JK1 2.5L engine?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The alloy rocker cover 4JK1 shares its camshafts with the 4JJ1, so the same performance set covers both the 2.5L and 3.0L engines.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What OE camshaft part numbers do these replace?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Intake 8-98288-940-0 and 8-98288-940-1, also cross-referenced as 8-98003-129-3, and exhaust 8-98288-946-1, also cross-referenced as 8-98003-130-3.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do I need ECU tuning after fitting performance camshafts to a 4JJ1 or 4JK1?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"ECU tuning is recommended. The camshafts provide improvement on their own, but deliver the best results when paired with tuning and supporting airflow modifications.\"\n      }\n    }\n  ]\n}\n\u003c\/script\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⚡ WAKE UP YOUR PRE-DPF 4JJ1\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 intake + exhaust performance camshaft set. Alloy rocker cover 4JJ1 \u0026amp; 4JK1. Professional install \u0026amp; tuning recommended.\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 Isuzu Motors or General Motors Holden. OE part numbers are shown for cross-reference only. Installation should be performed by a qualified technician. Fitment verification, correct cam timing and proper tuning are the buyer's responsibility.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FuseTech","offers":[{"title":"Default Title","offer_id":47117565952054,"sku":"4JJ1-4JK1-ALLOY-PERF-CAM-SET","price":1399.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0567\/7868\/6518\/files\/rn-image_picker_lib_temp_a2c8c3b8-af55-4ab5-9e58-8eaf731e38a5.jpg?v=1785889381","url":"https:\/\/www.commonrailcowboys.com\/products\/4jj1-4jk1-pre-dpf-2005-2016-alloy-rocker-cover-performance-camshaft-set-intake-exhaust-fuse-tech","provider":"Common Rail Cowboys","version":"1.0","type":"link"}