{"title":"Diesel Leak Off Kits","description":"\u003cp\u003eDiesel injector spill rail and leak-off kits, built to replace perished factory rubber leak-off pipework with a durable braided line kit. Keeps injector return fuel properly contained and stops the common leaks and weeping seen on ageing spill rails.\u003c\/p\u003e","products":[{"product_id":"discovery-1-200tdi-rhd-1989-1994-coolant-hose-kit-copy","title":"Injector Spill Rail \/ Leak-Off Kit — Land Rover 300Tdi Replaces OE Numbers: MJN100910 · ERR3306 · ERR3306R · NRC9770 · NRC9771","description":"\u003cstyle\u003e\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Archivo:wght@600;700;800;900\u0026family=IBM+Plex+Mono:wght@400;500;600\u0026family=IBM+Plex+Sans:wght@400;500;600\u0026display=swap');\n.p4x4{--ink:#171B1E;--ink-soft:#4A5159;--paper:#EEF1F1;--panel:#fff;--line:#D2D7D6;--petrol:#0F4C5C;--petrol-deep:#0A353F;--amber:#50bb20;--danger:#A8392D;background:var(--paper);color:var(--ink);font-family:\"IBM Plex Sans\",system-ui,sans-serif;font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;}\n.p4x4 *{box-sizing:border-box;}\n.p4x4 .wrap{max-width:880px;margin:0 auto;padding:0 22px;}\n.p4x4 .mast{background:var(--petrol-deep);color:#EAF0F0;border-bottom:4px solid var(--amber);}\n.p4x4 .mast .wrap{padding:34px 22px 30px;}\n.p4x4 .eyebrow{font-family:\"IBM Plex Mono\",monospace;font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:#8FB6BD;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;border-bottom:1px solid rgba(255,255,255,.14);padding-bottom:14px;}\n.p4x4 .title{font-family:\"archivo\",sans-serif;font-weight:900;letter-spacing:-.01em;line-height:1.02;text-transform:uppercase;font-size:clamp(18px,3vw,26px);margin:22px 0 10px;color:#EAF0F0;}\n.p4x4 .lede{font-size:clamp(15px,2.2vw,18px);color:#C7D7D9;max-width:56ch;margin:0;}\n.p4x4 .body{padding:40px 0 8px;}\n.p4x4 .sec{margin-bottom:38px;}\n.p4x4 .label{font-family:\"IBM Plex Mono\",monospace;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--petrol);display:flex;align-items:center;gap:12px;margin-bottom:12px;}\n.p4x4 .label::before{content:\"\";width:24px;height:2px;background:var(--amber);flex:none;}\n.p4x4 h2{font-family:\"archivo\",sans-serif;font-weight:800;font-size:clamp(16px,2.4vw,20px);line-height:1.1;letter-spacing:-.01em;margin:0 0 14px;color:var(--ink);}\n.p4x4 .panel h2{font-size:clamp(14px,2.2vw,18px);}\n.p4x4 p{margin:0 0 14px;}\n.p4x4 .panel{background:var(--panel);border:1px solid var(--line);border-top:4px solid var(--petrol);padding:22px 24px;}\n.p4x4 .oe{background:var(--panel);border:1px solid var(--line);border-left:5px solid var(--petrol);padding:20px 22px;}\n.p4x4 .oe ul{margin:0;padding-left:20px;font-size:15px;}\n.p4x4 .oe li{margin-bottom:6px;}\n.p4x4 .mono{font-family:\"IBM Plex Mono\",monospace;font-weight:600;color:var(--petrol);}\n.p4x4 .feat{list-style:none;margin:0;padding:0;border:1px solid var(--line);}\n.p4x4 .feat li{background:var(--panel);padding:12px 16px 12px 38px;position:relative;font-size:15px;border-bottom:1px solid var(--line);}\n.p4x4 .feat li:last-child{border-bottom:none;}\n.p4x4 .feat li::before{content:\"\";position:absolute;left:16px;top:18px;width:8px;height:8px;background:var(--amber);transform:rotate(45deg);}\n.p4x4 .close{background:var(--petrol-deep);color:#C7D7D9;padding:26px 28px;}\n.p4x4 .close h2{color:#fff;}.p4x4 .close p{margin:0;}\n.p4x4 a{color:var(--petrol);font-weight:600;text-underline-offset:3px;}\n\u003c\/style\u003e\u003cdiv class=\"p4x4\"\u003e\n\u003cdiv class=\"mast\"\u003e\u003cdiv class=\"wrap\"\u003e\n\u003cdiv class=\"eyebrow\"\u003e\n\u003cspan\u003ePioneer 4x4\u003c\/span\u003e\u003cspan\u003eLand Rover 300Tdi 1994-1998\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"title\"\u003eInjector Spill Rail \/ Leak-Off Kit\u003c\/div\u003e\n\u003cp class=\"lede\"\u003ePremium PTFE-lined, stainless steel braided injector spill rail and leak-off kit for the Land Rover 300Tdi 1994-1998, handmade in the UK as a direct replacement for the original perishable diesel leak-off pipes.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"body\"\u003e\u003cdiv class=\"wrap\"\u003e\n\u003cdiv class=\"sec\"\u003e\u003cdiv class=\"panel\" style=\"border-top-color:var(--amber)\"\u003e\n\u003cdiv class=\"label\"\u003ePre-order\u003c\/div\u003e\n\u003ch2\u003eNow in production — dispatching within 14 days\u003c\/h2\u003e\n\u003cp style=\"margin:0\"\u003eThis kit is available to pre-order. Production has started and units are expected to be ready to dispatch within 14 working days of order. Place your order now to reserve yours from the first batch and we'll notify you as soon as it ships.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\u003cdiv class=\"oe\"\u003e\n\u003cdiv class=\"label\"\u003eReplaces OE numbers\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eInjector spill rail \/ leak-off pipe. Replaces OE: \u003cspan class=\"mono\"\u003eMJN100910\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupersedes: \u003cspan class=\"mono\"\u003eERR3306 \/ ERR3306R\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eAlso replaces: \u003cspan class=\"mono\"\u003eNRC9770 \/ NRC9771\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cp\u003eDesigned as a direct replacement for the original diesel leak-off pipes on the 300Tdi, this kit returns excess fuel from the tops of the injectors back to the pump — and puts an end to the perished, cracked rubber that lets air into the fuel system.\u003c\/p\u003e\n\u003cp\u003eUnlike the original rubber assembly, every Pioneer 4x4 spill rail kit is built entirely from stainless steel — PTFE-lined braided hose with a protective coloured PVC outer cover and stainless steel fittings throughout — for maximum durability and corrosion resistance in harsh road, towing, expedition and off-road environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\u003cdiv class=\"panel\"\u003e\n\u003cdiv class=\"label\"\u003eThe hero feature\u003c\/div\u003e\n\u003ch2\u003eWhy upgrade?\u003c\/h2\u003e\n\u003cp style=\"margin:0\"\u003eThe original leak-off pipes are a known weak point on the 300Tdi. As the rubber ages it hardens and cracks, drawing air into the fuel line and causing hard starting, rough running and fuel weeping over a hot engine. A PTFE-lined, full stainless steel spill rail removes that failure point for good — no perishing, no splitting, no air leaks.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cdiv class=\"label\"\u003eWhat's included\u003c\/div\u003e\n\u003ch2\u003eIn the kit\u003c\/h2\u003e\n\u003cul class=\"feat\"\u003e\n\u003cli\u003ePTFE-lined stainless steel braided spill rail \/ leak-off assembly\u003c\/li\u003e\n\u003cli\u003eStainless steel banjo bolts and copper washers for all four injectors — single bolt for injector No.1, double banjo bolts for No.2, No.3 and No.4\u003c\/li\u003e\n\u003cli\u003eTwo fuel-line compression fittings (nut \u0026amp; olive) — one to suit the original Land Rover fuel lines, one to suit the Pioneer 4x4 fuel line kit\u003c\/li\u003e\n\u003cli\u003eEverything needed to fit, straight out of the box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\u003cdiv class=\"panel\"\u003e\n\u003cdiv class=\"label\"\u003eCustom work\u003c\/div\u003e\n\u003ch2\u003eNeed something bespoke?\u003c\/h2\u003e\n\u003cp style=\"margin:0\"\u003eWe make custom lengths, fittings and configurations to order. If you need something specific for your build, \u003ca href=\"https:\/\/pioneer-4x4-2.myshopify.com\/pages\/contact\"\u003eget in touch\u003c\/a\u003e with your requirements before ordering and we'll sort it.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cdiv class=\"label\"\u003eKey features\u003c\/div\u003e\n\u003ch2\u003eBuilt to outlast the rubber\u003c\/h2\u003e\n\u003cul class=\"feat\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePTFE inner liner\u003c\/strong\u003e — resistant to heat, pressure, moisture and corrosion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull stainless steel construction\u003c\/strong\u003e — braid, fittings, ferrules, nut, olive and banjo bolts throughout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtective PVC covering\u003c\/strong\u003e — guards against abrasion, dirt and harsh environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect OE replacement\u003c\/strong\u003e — fits in place of MJN100910 \/ ERR3306 with no modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo more perished pipes\u003c\/strong\u003e — won't crack, split or draw air like the original rubber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete kit\u003c\/strong\u003e — everything needed to fit included as standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandmade in Devon\u003c\/strong\u003e — machined and assembled in-house on our own equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cdiv class=\"label\"\u003eSpecifications\u003c\/div\u003e\n\u003ch2\u003eThe numbers\u003c\/h2\u003e\n\u003cul class=\"feat\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eLine inner material:\u003c\/strong\u003e PTFE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLine outer material:\u003c\/strong\u003e Stainless steel (303\/304) with protective PVC cover\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFittings material:\u003c\/strong\u003e Stainless steel (303\/304)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e -70°C to 260°C (-94°F to 500°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside diameter:\u003c\/strong\u003e 3.5mm (0.138\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside diameter:\u003c\/strong\u003e 7.5mm (0.295\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum working pressure:\u003c\/strong\u003e 290 Bar (4206 PSI)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBurst pressure:\u003c\/strong\u003e 870 Bar (12618 PSI)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum bend radius:\u003c\/strong\u003e 38mm (1.496\")\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\u003cdiv class=\"panel\"\u003e\n\u003cdiv class=\"label\"\u003eFitting \u0026amp; safety\u003c\/div\u003e\n\u003ch2\u003eFitting\u003c\/h2\u003e\n\u003cp\u003eEverything you need is in the box. Before you start, read our full step-by-step \u003ca href=\"https:\/\/pioneer-4x4-2.myshopify.com\/pages\/300tdi-spill-rail-leak-off-fitting-guide\"\u003e300Tdi spill rail fitting guide\u003c\/a\u003e — it covers injector numbering, which banjo bolt goes where, the copper washer sequence, the two fuel-line compression fittings and re-using the pump's non-return bolt.\u003c\/p\u003e\n\u003cp style=\"margin:0\"\u003eIf you're unsure on fitment, \u003ca href=\"https:\/\/pioneer-4x4-2.myshopify.com\/pages\/contact\"\u003eget in touch\u003c\/a\u003e before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"close\"\u003e\n\u003cdiv class=\"label\" style=\"color:#8FB6BD\"\u003eLifetime warranty\u003c\/div\u003e\n\u003ch2\u003eHandmade in the UK, backed for life\u003c\/h2\u003e\n\u003cp\u003eEvery Pioneer 4x4 stainless steel kit is made to order in the UK and covered by a no-quibble lifetime warranty — complete confidence in its quality, durability and long-term performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Pioneer 4x4","offers":[{"title":"Black","offer_id":54009676431698,"sku":"DLO-001-BK","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"Clear","offer_id":54009676464466,"sku":"DLO-001-CL","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"Carbon","offer_id":54009676497234,"sku":"DLO-001-CB","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"Trans Red","offer_id":54009676530002,"sku":"DLO-001-TR","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"Trans Blue","offer_id":54009676562770,"sku":"DLO-001-TU","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"Trans Purple","offer_id":54009676595538,"sku":"DLO-001-TV","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"Solid Red","offer_id":54009676628306,"sku":"DLO-001-RD","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"Solid Blue","offer_id":54009676661074,"sku":"DLO-001-BL","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"Solid Green","offer_id":54009676693842,"sku":"DLO-001-GN","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"Solid Pink","offer_id":54009676726610,"sku":"DLO-001-PK","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"Solid Yellow","offer_id":54009676759378,"sku":"DLO-001-YL","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"Solid Orange","offer_id":54009676792146,"sku":"DLO-001-OR","price":124.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1056\/6441\/4034\/files\/IMG_3138_577cfc17-53a5-407e-8918-75d8407cad08.jpg?v=1782839365"}],"url":"https:\/\/www.pioneer4x4.com\/collections\/diesel-leak-off-kits.oembed","provider":"Pioneer 4x4","version":"1.0","type":"link"}