{"product_id":"motion-pro-compression-tester-10mm-12mm-14mm-57-8840","title":"Motion Pro Compression Tester - 10mm 12mm 14mm","description":"\u003cp\u003eMotion Pro compression tester for V-twin motorcycles, featuring a redesigned billet gauge manifold with integrated pressure release valve and 0-300 psi analog gauge. Three spark plug adapters (10mm, 12mm, 14mm) cover most Harley and Indian models, and the integrated quick disconnect fitting makes hose swaps fast and repeatable.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eBillet gauge manifold with integrated pressure release valve\u003c\/li\u003e\n  \u003cli\u003e0-300 psi precision analog gauge with protective rubber boot\u003c\/li\u003e\n  \u003cli\u003eThree adapters: 10mm, 12mm, and 14mm spark plugs\u003c\/li\u003e\n  \u003cli\u003eIntegrated quick disconnect fitting\u003c\/li\u003e\n  \u003cli\u003eNylon storage pouch included\u003c\/li\u003e\n  \u003cli\u003eAll hoses and adapters included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Motion Pro\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 08-0651\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 13.3 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 6.69 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 1.96 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.18 lbs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e China (Mainland)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits V-twin motorcycles, including most Harley-Davidson and Indian Motorcycle models with 10mm, 12mm, or 14mm spark plug holes.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat spark plug sizes does this work with?\u003c\/h3\u003e\n\u003cp\u003eThree adapters are included: 10mm, 12mm, and 14mm — covering most Harley and Indian models.\u003c\/p\u003e\n\u003ch3\u003eDo I need to buy adapters separately?\u003c\/h3\u003e\n\u003cp\u003eNo — all three adapters, hoses, and fittings are included in the box.\u003c\/p\u003e\n\u003ch3\u003eWhat's the maximum psi reading?\u003c\/h3\u003e\n\u003cp\u003eThe analog gauge reads from 0 to 300 psi, suitable for testing V-twin compression.\u003c\/p\u003e\n\u003ch3\u003eIs the pressure release valve manual or automatic?\u003c\/h3\u003e\n\u003cp\u003eIt's integrated into the manifold for safety — use it to bleed pressure between tests without disconnecting the hose.\u003c\/p\u003e","brand":"Motion Pro","offers":[{"title":"Default Title","offer_id":53035947753583,"sku":"57-8840","price":124.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_f32ea1e3-d29c-428d-9f95-42e267e4613d.png?v=1779582684","url":"https:\/\/vtwinbikers.com\/products\/motion-pro-compression-tester-10mm-12mm-14mm-57-8840","provider":"Vtwinbikers","version":"1.0","type":"link"}