{"product_id":"porsche-hastech-engineering-design-porsche-911-65-89-billet-chain-tensioners-h911-390-kit-1","title":"Porsche Hastech Engineering Design Porsche 911 65-89 Billet Chain Tensioners  H911-390-KIT","description":"Porsche \u003cspan data-mce-fragment=\"1\"\u003eHastech Engineering's race proven design combines the robustness and safety from jumping of a mechanical tensioner with the self adjustment and dampening effect of a hydraulic tensioner. Easy to mount and adjust without special tools; does not use an oil feed line. Tensioner must be adjusted annually (usually once a race season) per Hastech recommendations. Manufactured by LN Engineering in the USA to Hastech Engineering specifications.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e","brand":"Hastech","offers":[{"title":"Default Title","offer_id":40153763381306,"sku":"H911-390-KIT","price":1075.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/4846\/2650\/files\/Porsche-Hastech-Engineering-Design-Porsche-911-65-0.jpg?v=1747828765","url":"https:\/\/sierramadrecollection.com\/products\/porsche-hastech-engineering-design-porsche-911-65-89-billet-chain-tensioners-h911-390-kit-1","provider":"Sierra Madre Collection","version":"1.0","type":"link"}