{"product_id":"tci-th400-racing-transmission-filter-reusable-pan-gasket-kit-1966-1991-high-flow-leak-resistant","title":"TCI TH400 Racing Transmission Filter \u0026 Reusable Pan Gasket Kit 1966-1991 — High-Flow, Leak-Resistant","description":"\u003cp\u003e\u003cstrong\u003eTCI 228500 is a purpose-built TH400 racing transmission filter and reusable pan gasket kit that improves fluid flow, captures contaminants, and replaces the factory pan seal for reliable maintenance.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis kit was developed for racers and performance enthusiasts running GM Turbo-Hydramatic 400 (TH400) transmissions in vehicles from 1966 through 1991. It pairs a high-flow racing transmission filter engineered for better circulation and particle control with a durable reusable pan gasket that resists leaks and repeated service cycles. The package is compact and lightweight, making it an efficient upgrade during routine transmission service or before track events.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this kit improve transmission fluid flow and filtration?\u003c\/h3\u003e\n\u003cp\u003eThe racing filter is shaped and sized to reduce restriction while still trapping wear particles and debris that can damage clutch packs and valve bodies. Better flow helps maintain consistent hydraulic pressure under heavy loads, and the filter media is selected for racing duty where heat and shear are higher.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-flow design lowers hydraulic restriction compared with many OEM filters.\u003c\/li\u003e\n  \u003cli\u003eFiltration media captures metallic particles and contaminants from the circuit.\u003c\/li\u003e\n  \u003cli\u003eOptimized shape promotes even fluid distribution through the transmission.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes the pan gasket in this set different from standard replacement gaskets?\u003c\/h3\u003e\n\u003cp\u003eThe included pan gasket is a reusable sealing solution designed to resist compression set and maintain a leak-free joint after multiple service cycles. It’s engineered for the TH400 pan interface, giving a precise fit that reduces the need for gasket sealants and simplifies reassembly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReusable material resists permanent deformation during bolt torqueing.\u003c\/li\u003e\n  \u003cli\u003eVehicle-specific profile ensures correct alignment and sealing.\u003c\/li\u003e\n  \u003cli\u003eReduces dependency on messy RTV or single-use gaskets during rebuilds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this kit suitable for track use and heavy-duty applications?\u003c\/h3\u003e\n\u003cp\u003eYes — the filter and gasket were selected for performance environments where transmission temperatures and load cycles exceed typical street use. While not a complete transmission rebuild, this kit contributes to improved durability and serviceability under demanding conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFilter media chosen for higher shear and temperature tolerance.\u003c\/li\u003e\n  \u003cli\u003eGasket construction resists repeated removal and reinstallation.\u003c\/li\u003e\n  \u003cli\u003eLightweight package limits added weight and is easy to handle during pit stops or garage work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install the TCI 228500 kit and what should I check during service?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for anyone familiar with transmission pan removal: drain fluid, remove the pan, unbolt the factory filter, install the TCI racing filter and gasket, then refill with the correct fluid volume and type for your TH400. Always torque fasteners to manufacturer specs and inspect the pan and magnet for wear debris.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDrain fluid and remove pan to access the factory filter.\u003c\/li\u003e\n  \u003cli\u003eSwap in the TCI racing filter and fit the reusable gasket to the pan flange.\u003c\/li\u003e\n  \u003cli\u003eReinstall pan, torque bolts properly, and refill with the recommended fluid and quantity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: TCI 228500 is aimed at vintage GM owners, street-rod builders, and racers running TH400 transmissions from 1966–1991 who want a cost-effective performance upgrade. It’s suited for technicians and do-it-yourselfers that prioritize improved fluid flow, better particle control, and a reliable pan seal that can withstand repeated servicing. If you need a simple, performance-minded filter and a reusable gasket to support heavier duty operation and easier maintenance, this kit provides a compact, vehicle-specific solution.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eFeatures:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTCI Racing Transmission Filter TH400 P\/N 228500\u003c\/li\u003e\n  \u003cli\u003eFit type: Vehicle Specific (TH400, 1966–1991)\u003c\/li\u003e\n  \u003cli\u003eCategory: automotive-automatic-transmission-filter-kits\u003c\/li\u003e\n  \u003cli\u003eItem Package Weight: 1.5 pounds\u003c\/li\u003e\n\u003c\/ul\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: Will this TCI kit fit all TH400 transmissions between 1966 and 1991?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the kit is vehicle-specific for GM TH400 models produced 1966–1991, designed to match the factory filter location and pan interface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I reuse the pan gasket after multiple services?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the gasket is reusable and built to resist compression set, allowing reliable resealing across several service cycles.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TCI","offers":[{"title":"Default Title","offer_id":48086801744030,"sku":"B000NCYJTI","price":54.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/tci-th400-filter-pan-gasket-front-package.jpg?v=1785905664","url":"https:\/\/northtrailauto.ca\/products\/tci-th400-racing-transmission-filter-reusable-pan-gasket-kit-1966-1991-high-flow-leak-resistant","provider":"North Trail Auto","version":"1.0","type":"link"}