{"product_id":"id-4-to-5-inch102-127mm-straight-silicone-reducer-coupler","title":"ID 4 to 5 inch(102-127mm) Straight Silicone Reducer Coupler","description":"\u003cp\u003e\u003cstrong\u003eTuoLauthon’s 4 to 5 inch (102–127 mm) straight silicone reducer coupler is a heavy-duty, 4-ply reinforced silicone connection kit that adapts turbo, intake, intercooler, and exhaust piping with two included stainless steel T-bolt clamps.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis reducer coupler is engineered to provide a reliable, vibration-tolerant join between mismatched tubing diameters in automotive and industrial systems. Constructed from high-quality silicone with four layers of polyester reinforcement, the sleeve resists heat, ozone and UV exposure while maintaining flexibility across a wide temperature range. It ships ready to install with two corrosion-resistant T-bolt clamps sized to secure the 102 mm to 127 mm inner diameter transition.\u003c\/p\u003e\n\n\u003ch3\u003eWhat materials and build quality can I expect?\u003c\/h3\u003e\n\u003cp\u003eThe coupler uses premium silicone elastomer reinforced by four polyester plies for strength and dimensional stability under pressure. This multi-layer design limits expansion and protects against tears while preserving pliability for tight-fit installations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e4-ply polyester reinforcement for pressure resistance and durability\u003c\/li\u003e\n  \u003cli\u003e5 mm wall thickness combining rigidity and flexibility\u003c\/li\u003e\n  \u003cli\u003eHigh-grade silicone outer\/inner surfaces for chemical and weather resistance\u003c\/li\u003e\n  \u003cli\u003eTwo stainless steel T-bolt clamps included for strong, even sealing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does it perform under temperature and pressure?\u003c\/h3\u003e\n\u003cp\u003eThe reducer is rated for extreme environments, capable of operating in very low and very high temperatures without stiffening or cracking. Operating pressures cover typical boost and intake conditions and offer a substantial safety margin before burst failure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTemperature range: -76°F (−60°C) to +500°F (+260°C)\u003c\/li\u003e\n  \u003cli\u003eWorking pressure range: 0.3 MPa (43.5 PSI) to 0.9 MPa (130.5 PSI)\u003c\/li\u003e\n  \u003cli\u003eBursting pressure up to 2 MPa for added reliability\u003c\/li\u003e\n  \u003cli\u003eUV and ozone resistant for outdoor and marine use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fit my piping and how is it measured?\u003c\/h3\u003e\n\u003cp\u003eThis straight reducer accepts pipes with inner diameters of 102 mm (4 in) on the smaller end and 127 mm (5 in) on the larger end, with a short 76 mm (3 in) overall sleeve length. Measure the outside diameter of your tubing and the clamp range to confirm proper fit; the included T-bolt clamps provide a wide range of tightening adjustment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInner diameters: 102 mm to 127 mm (4\"–5\")\u003c\/li\u003e\n  \u003cli\u003eSleeve length: 76 mm (approx. 3\") for compact installations\u003c\/li\u003e\n  \u003cli\u003eWall thickness: 5 mm for robust sealing and support\u003c\/li\u003e\n  \u003cli\u003eIncludes two stainless T-bolt clamps to secure both ends\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and what applications suit this coupler?\u003c\/h3\u003e\n\u003cp\u003eThe short straight design and flexible silicone make it straightforward to install in tight engine bays or piping runs. It’s compatible with turbo intake plumbing, intercooler lines, exhaust transitions, marine exhaust systems, and other industrial ducting where a reliable, heat-resistant join is needed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSlip onto pipe ends and tighten T-bolts for an even, leak-resistant seal\u003c\/li\u003e\n  \u003cli\u003eIdeal for turbochargers, intercoolers, intake manifolds, and exhaust adapters\u003c\/li\u003e\n  \u003cli\u003eWorks well in marine, industrial, and performance automotive environments\u003c\/li\u003e\n  \u003cli\u003eResists ozone, UV, oil splashes and temperature cycling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Technicians, DIY tuners and fabricators who need a durable, compact reducer to adapt 4\" to 5\" piping—particularly useful for turbo and intercooler plumbing, custom exhaust transitions, and marine or industrial ductwork. If you require a robust silicone coupling with wide temperature tolerance, reinforced strength and included corrosion-resistant clamps for a secure installation, this TuoLauthon reducer coupler meets those needs without additional modifications.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this reducer include clamps?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the kit includes two stainless steel T-bolt clamps sized to fit and secure both ends of the coupler.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What temperature range can the silicone handle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The silicone works from −76°F (−60°C) up to +500°F (+260°C), suitable for engine and industrial environments.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TuoLauthon","offers":[{"title":"Default Title","offer_id":48087649910942,"sku":"B0CJFMW2HQ","price":36.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/tuolauthon-front-packaging-reducer-coupler_5482cd03-8a5c-47cf-9384-eea1eb1cf0d8.jpg?v=1785927555","url":"https:\/\/northtrailauto.ca\/products\/id-4-to-5-inch102-127mm-straight-silicone-reducer-coupler","provider":"North Trail Auto","version":"1.0","type":"link"}