{"title":"Leakdown Testers","description":null,"products":[{"product_id":"king-racing-productsleak-down-tester-dual-gauge","title":"King Racing Products Dual Gauge Leak Down Tester — Precision Engine Diagnostic Tool","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout King Racing Products\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eKing Racing Products engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full King Racing Products lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/OF0LFpsXryE\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eProfessional Engine Diagnostics with King Racing\u003c\/h2\u003e\u003cp\u003eEnsure your engine is operating at peak efficiency with the King Racing Products Dual Gauge Leak Down Tester. This professional-grade tool is essential for any serious builder or tuner looking to identify internal engine wear before it leads to catastrophic failure. By measuring the percentage of air leakage in each cylinder, you can pinpoint issues with piston rings, valves, and head gaskets with absolute precision.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDual-gauge design for accurate pressure regulation and leakage percentage readings.\u003c\/li\u003e\n\u003cli\u003eHigh-visibility analog dials for easy monitoring during testing.\u003c\/li\u003e\n\u003cli\u003eDurable construction built to withstand the rigors of the track and shop environments.\u003c\/li\u003e\n\u003cli\u003eComplete kit includes everything needed for immediate engine health assessment.\u003c\/li\u003e\n\u003cli\u003eEssential for high-performance naturally aspirated and forced-induction engines.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are performing routine maintenance or troubleshooting a loss of power, this leak down tester provides the reliable data you need to make informed decisions. Its intuitive design allows for quick setup, saving you valuable time in the garage. Trust your engine diagnostics to the experts at GGCRACING and keep your vehicle performing at its best.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular King Racing Products products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/king-racing-productsfront-axle-50in-2-1-2-diameter-black\" style=\"color:#0066cc;text-decoration:none;\"\u003eKing Racing Products Front Axle 2.5in Diameter 50in Wide Chromoly — Fits Sprint Car\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/king-racing-productslf-torsion-arm-s-style-front-black\" style=\"color:#0066cc;text-decoration:none;\"\u003eKing Racing Products LF Torsion Arm S-Style Black Anodized — Fits Sprint Car\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/king-racing-productsrf-torsion-arm-angle-broached-black\" style=\"color:#0066cc;text-decoration:none;\"\u003eKing Racing Products RF Torsion Arm Angle Broached Black — Fits Sprint Car\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/king-racing-productstorsion-bar-stop-front-1-3-4-split-black\" style=\"color:#0066cc;text-decoration:none;\"\u003eKing Racing Products Torsion Bar Stop 1-3\/4in 48-Spline Black — Fits Sprint Car\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/king-racing-productstorsion-arm-left-rear-billet\" style=\"color:#0066cc;text-decoration:none;\"\u003eKing Racing Products Rear Torsion Arm Left Side Billet Aluminum — Fits Sprint Car\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"King Racing Products Dual Gauge Leak Down Tester \\u2014 Precision Engine Diagnostic Tool\",\"description\":\"Diagnose engine health with the King Racing Products Dual Gauge Leak Down Tester. Accurate, professional-grade diagnostics. Shop now for top-tier performance.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"King Racing Products\"},\"mpn\":\"1915\",\"url\":\"https:\/\/ggcracing.com\/products\/king-racing-productsleak-down-tester-dual-gauge\",\"offers\":{\"@type\":\"Offer\",\"price\":\"229.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/king-racing-productsleak-down-tester-dual-gauge\",\"sku\":\"GCFH_1915\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"King Racing Products\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=King+Racing+Products\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"King Racing Products Dual Gauge Leak Down Tester \\u2014 Precision Engine Diagnostic Tool\",\"item\":\"https:\/\/ggcracing.com\/products\/king-racing-productsleak-down-tester-dual-gauge\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the King Racing Products Dual Gauge Leak Down Tester \\u2014 Precision Engine Diagnostic T fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for King Racing Products?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the King Racing Products Dual Gauge Leak Down Tester \\u2014 Precision Engine Diagnostic T?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"King Racing Products","offers":[{"title":"Default Title","offer_id":41125989711956,"sku":"GCFH_1915","price":229.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/KRP1915.jpg?v=1717439126"},{"product_id":"kinslerdual-gauge-leakdown-tester-twin-0-100","title":"Kinsler Dual Gauge Leakdown Tester 0-100 PSI - Professional Engine Tool","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Kinsler\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eKinsler engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Kinsler lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eProfessional Engine Diagnostics\u003c\/h2\u003e\u003cp\u003eThe Kinsler Dual Gauge Leakdown Tester is an indispensable tool for any engine builder or racing team. By measuring the percentage of pressure loss in each cylinder, this kit allows you to pinpoint issues with piston rings, valves, and head gaskets before they lead to catastrophic failure. Featuring dual 0-100 PSI analog gauges, it provides clear, accurate readings for precise engine health monitoring.\u003c\/p\u003e\u003ch3\u003eWhy Use a Leakdown Tester?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Gauge System:\u003c\/strong\u003e Allows for simultaneous monitoring of input and cylinder pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e Professional-grade gauges for reliable data collection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagnostics:\u003c\/strong\u003e Identify worn rings, leaking valves, or cracked cylinder walls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatility:\u003c\/strong\u003e Essential for tuning and pre-race engine checks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Built to withstand the demands of a busy race shop.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are performing routine maintenance or troubleshooting a performance drop, this leakdown tester provides the insight needed to keep your engine in top condition. Don't leave your engine's health to chance—invest in high-quality diagnostic equipment. For all your professional racing tool needs, look to the selection available at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Kinsler products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/kinslerreplacement-diaphragm-for-d-series-k-1\" style=\"color:#0066cc;text-decoration:none;\"\u003eKinsler Replacement Bypass Diaphragm For D-Series K-1 Fuel Injection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/kinslerup-nozzle-lines-7in\" style=\"color:#0066cc;text-decoration:none;\"\u003eKinsler Up Nozzle Lines 7in Mechanical Fuel Injection Hose — Universal Fitment\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/kinslerup-nozzle-lines-9-5in\" style=\"color:#0066cc;text-decoration:none;\"\u003eKinsler Up Nozzle Lines 9.5in Mechanical Fuel Injection Hose — Universal Fitment\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/kinslerdown-nozzle-lines-19in\" style=\"color:#0066cc;text-decoration:none;\"\u003eKinsler Down Nozzle Lines 19in Mechanical Fuel Injection Hose — Universal Fitment\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/kinslero-ring-for-nozzles\" style=\"color:#0066cc;text-decoration:none;\"\u003eKinsler Fuel Injector Nozzle O-Ring — Replacement Seal\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Kinsler Dual Gauge Leakdown Tester 0-100 PSI - Professional Engine Tool\",\"description\":\"Diagnose engine health accurately with the Kinsler Dual Gauge Leakdown Tester. Professional 0-100 PSI kit for race engines. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Kinsler?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Kinsler Dual Gauge Leakdown Tester 0-100 PSI - Professional Engine Tool?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Kinsler","offers":[{"title":"Default Title","offer_id":41126049841236,"sku":"BJDW_5980","price":189.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/KIN5980.jpg?v=1717441912"},{"product_id":"longacre-engine-leak-down-tester-digital-14mm","title":"Longacre Digital Engine Leak Down Tester 14mm — Professional Diagnostic Tool","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Longacre\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eLongacre engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Longacre lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/_0b_K8mD698\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003ePrecision Engine Diagnostics\u003c\/h2\u003e\u003cp\u003eThe Longacre Digital Engine Leak Down Tester (52-73014) is an essential diagnostic instrument for high-performance engine builders and mechanics. Designed to identify internal engine issues before they lead to catastrophic failure, this tool measures the percentage of pressure loss in your cylinders. By pinpointing leaks in valves, piston rings, or head gaskets, you can optimize engine performance and reliability.\u003c\/p\u003e\u003ch3\u003eKey Features and Technical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital Accuracy:\u003c\/strong\u003e High-resolution digital display for precise readings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e14mm Compatibility:\u003c\/strong\u003e Standard 14mm spark plug thread adapter for wide vehicle fitment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Includes a 26-inch high-pressure hose for easy access in tight engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacklit Display:\u003c\/strong\u003e Ensures clear visibility in dim garage or pit environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Kit:\u003c\/strong\u003e Everything needed to perform a professional-grade leak down test.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are tuning a race engine or verifying a street build, this tester provides the data you need to ensure your combustion chamber is sealed correctly. The dual-gauge system allows for quick comparison between input and output pressure, making it easier than ever to detect subtle performance-robbing leaks. This unit is built to withstand the rigors of a professional workshop while maintaining the sensitivity required for critical engine tuning. Trust your engine health to the industry-leading diagnostic equipment available at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Longacre products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/longacre-tire-gauge-0-60psi-3-5in-gid-dual-bleed-magnum\" style=\"color:#0066cc;text-decoration:none;\"\u003eLongacre Magnum 3.5in Glow-in-the-Dark Tire Pressure Gauge 0-60 PSI\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/longacre-tire-gauge-digital-0-60-psi\" style=\"color:#0066cc;text-decoration:none;\"\u003eLongacre Pro Digital Tire Pressure Gauge 0-60 PSI — Backlit Display\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/longacre-tire-gauge-digital-0-60-psi-semi-pro\" style=\"color:#0066cc;text-decoration:none;\"\u003eLongacre Semi-Pro Digital Tire Pressure Gauge 0-60 PSI — Precision Track Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/longacre-14in-mirror-kit-short-1-3-4in-bar\" style=\"color:#0066cc;text-decoration:none;\"\u003eLongacre 14in. Wide Angle Rear View Mirror Kit — Fits 1-3\/4in. Roll Bar\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/longacre-rear-end-breather-kit-1-75in-bar\" style=\"color:#0066cc;text-decoration:none;\"\u003eLongacre Rear End Breather Kit — Fits 1-3\/4in. Bar Mount\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Longacre Digital Engine Leak Down Tester 14mm \\u2014 Professional Diagnostic Tool\",\"description\":\"Accurately diagnose engine health with the Longacre Digital Leak Down Tester. Features 14mm adapter and backlit display. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Longacre?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Longacre Digital Engine Leak Down Tester 14mm \\u2014 Professional Diagnostic Tool?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Longacre","offers":[{"title":"Default Title","offer_id":41363796262996,"sku":"BJFG_52-73014","price":357.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/LON52-73014.jpg?v=1719517596"},{"product_id":"longacre-leak-down-tester","title":"Longacre Leak Down Tester Dual Gauge Mechanical Kit — Engine Diagnostic Tool","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Longacre\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eLongacre engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Longacre lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/-oLwZmJpOMk\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eProfessional Engine Diagnostics with Longacre\u003c\/h2\u003e\u003cp\u003eEnsure your engine is operating at peak performance with the Longacre Leak Down Tester. This high-precision diagnostic tool is essential for any serious racer or mechanic looking to identify internal engine issues before they lead to catastrophic failure. By measuring the percentage of pressure loss in each cylinder, you can quickly pinpoint worn rings, leaky valves, or blown head gaskets.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Gauge Design:\u003c\/strong\u003e Provides clear, simultaneous readings for input and output pressure for unmatched accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog Precision:\u003c\/strong\u003e High-quality gauges ensure reliable data collection during every testing session.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Application:\u003c\/strong\u003e Includes an 18-inch flexible hose, making it easy to reach spark plug ports in tight engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Built to withstand the rigors of the garage and trackside environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are performing routine maintenance or troubleshooting a loss of power, this leak down tester is a must-have in your toolbox. The kit is designed for ease of use, allowing for rapid cylinder-by-cylinder analysis. Don't leave your engine's health to chance; invest in the diagnostic reliability that professionals trust. Find this and other premium automotive tools at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Longacre products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/longacre-tire-gauge-0-60psi-3-5in-gid-dual-bleed-magnum\" style=\"color:#0066cc;text-decoration:none;\"\u003eLongacre Magnum 3.5in Glow-in-the-Dark Tire Pressure Gauge 0-60 PSI\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/longacre-tire-gauge-digital-0-60-psi\" style=\"color:#0066cc;text-decoration:none;\"\u003eLongacre Pro Digital Tire Pressure Gauge 0-60 PSI — Backlit Display\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/longacre-engine-leak-down-tester-digital-14mm\" style=\"color:#0066cc;text-decoration:none;\"\u003eLongacre Digital Engine Leak Down Tester 14mm — Professional Diagnostic Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/longacre-tire-gauge-digital-0-60-psi-semi-pro\" style=\"color:#0066cc;text-decoration:none;\"\u003eLongacre Semi-Pro Digital Tire Pressure Gauge 0-60 PSI — Precision Track Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/longacre-14in-mirror-kit-short-1-3-4in-bar\" style=\"color:#0066cc;text-decoration:none;\"\u003eLongacre 14in. Wide Angle Rear View Mirror Kit — Fits 1-3\/4in. Roll Bar\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Longacre Leak Down Tester Dual Gauge Mechanical Kit \\u2014 Engine Diagnostic Tool\",\"description\":\"Diagnose engine health with the Longacre Leak Down Tester. Dual-gauge precision for accurate cylinder performance testing. 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