{"title":"Transmission \u0026 Gearbox","description":"\u003cp\u003eTransmission and gearbox components for Porsche GT3 Cup and GT4 Clubsport race cars — shift hardware, mounts, coolers, and gearbox-adjacent components from the program's inventory, each verified against the factory part number.\u003c\/p\u003e\n\u003cp\u003eEvery part is graded on our \u003ca href=\"\/pages\/grading\"\u003epublished 1–5 grading scale\u003c\/a\u003e. Driveline components carry the same expectation as our other mechanical categories: inspection by a qualified race shop before service. Gearbox internals, when they appear, come only from the program's own units — never consolidated salvage — and oversize items ship freight with options quoted after checkout.\u003c\/p\u003e","products":[{"product_id":"p0008","title":"991.375.137.CR Transmission bracket — Porsche 991 GT3 Cup — Grade 5 New\/NOS","description":"\u003cp\u003eNew (NOS) Transmission bracket for Porsche 991 GT3 Cup cars.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Fits Porsche 991 GT3 Cup. Part number 991.375.137.CR. Verify against your part number before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGrade 5 — New\/NOS.\u003c\/strong\u003e Never installed. Original packaging, or an unfitted take-off with zero use. Removed from: Porsche 991 GT3 Cup.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eUsed competition part sold as-is for off-highway\/motorsport use only. Buyer is responsible for inspection before use.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003eShips within 1–2 business days from Southern California. Oversize items (doors, wings, gearboxes) ship freight — we will contact you with options after checkout.\u003c\/p\u003e","brand":"Race Parts Depot","offers":[{"title":"Default Title","offer_id":55823348662345,"sku":"P0008","price":0.0,"currency_code":"USD","in_stock":true}]},{"product_id":"p0028","title":"991.618.355.8B Gearshift compressor assembly — Porsche 991 GT3 Cup — Grade 3 Good","description":"\u003cp\u003eGenuine used Gearshift compressor assembly for Porsche 991 GT3 Cup cars.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Fits Porsche 991 GT3 Cup. Part number 991.618.355.8B. Verify against your part number before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGrade 3 — Good.\u003c\/strong\u003e Normal competition wear. Fully functional, cosmetic marks only. Removed from: Porsche 991 GT3 Cup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCondition notes:\u003c\/strong\u003e see photos — the visible condition of this exact part is shown.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eUsed competition part sold as-is for off-highway\/motorsport use only. Buyer is responsible for inspection before use.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003eShips within 1–2 business days from Southern California. Oversize items (doors, wings, gearboxes) ship freight — we will contact you with options after checkout.\u003c\/p\u003e","brand":"Race Parts Depot","offers":[{"title":"Default Title","offer_id":55823349612617,"sku":"P0028","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/6172\/8329\/files\/p0028.jpg?v=1784908164"},{"product_id":"p0058","title":"991.618.471.8A Valve block, paddle-shift system — Porsche 991 GT3 Cup — Grade 5 New\/NOS","description":"\u003cp\u003eNew (NOS) Valve block, paddle-shift system for Porsche 991 GT3 Cup cars.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Fits Porsche 991 GT3 Cup. Part number 991.618.471.8A. Verify against your part number before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGrade 5 — New\/NOS.\u003c\/strong\u003e Never installed. Original packaging, or an unfitted take-off with zero use. Removed from: Porsche 991 GT3 Cup.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eUsed competition part sold as-is for off-highway\/motorsport use only. Buyer is responsible for inspection before use.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003eShips within 1–2 business days from Southern California. Oversize items (doors, wings, gearboxes) ship freight — we will contact you with options after checkout.\u003c\/p\u003e","brand":"Race Parts Depot","offers":[{"title":"Default Title","offer_id":55840402407497,"sku":"P0058","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/6172\/8329\/files\/p0058.jpg?v=1784908395"}],"url":"https:\/\/raceparts-depot.com\/collections\/transmission-gearbox.oembed","provider":"Race Parts Depot","version":"1.0","type":"link"}