{"product_id":"brass-push-lock-reducing-union-1-2-to-3-8-dot-air-brake-tubing-coupling-replaces-gates-g31400-0806-8ab-6ab-177-13b6268","title":"Brass Push-Lock Reducing Union - 1\/2\" to 3\/8\" DOT Air Brake Tubing Coupling - Replaces Gates G31400-0806 8AB-6AB 177.13B6268","description":"\u003cp\u003eStep a \u003cstrong\u003e1\/2 in air line\u003c\/strong\u003e down to \u003cstrong\u003e3\/8 in\u003c\/strong\u003e in a single brass body with this \u003cstrong\u003eDOT push-lock reducing union\u003c\/strong\u003e distributed by FleetPro Parts \u0026amp; Tires. It replaces the usual roadside bodge — a coupling, a bushing and two more thread joints stacked end to end — with one fitting and one sealing point on each tube. Every extra joint you delete is one less place for the system to weep down while the truck sits overnight. We stock these heavily right here in our Hanover Park, Illinois warehouse to ensure lightning-fast shipping for fleets, diesel repair shops, and owner-operators nationwide.\u003c\/p\u003e\n\n\u003ch2\u003eOne Fitting Instead of Three: The Brass PLC Reducing Union Advantage\u003c\/h2\u003e\n\n\u003cp\u003eManufactured by Automann to \u003cstrong\u003eFleet Standard\u003c\/strong\u003e specifications, this \u003cstrong\u003ebrass PLC union coupling\u003c\/strong\u003e is DOT-approved for heavy-duty air brake systems and meets \u003cstrong\u003eFMVSS 571.106\u003c\/strong\u003e. Both ends are push-lock, so a \u003cstrong\u003e1\/2 in\u003c\/strong\u003e tube goes in one side and a \u003cstrong\u003e3\/8 in\u003c\/strong\u003e tube goes in the other with nothing more than a square cut and firm pressure — no thread sealant, no torque spec, no flare tool.\u003c\/p\u003e\n\n\u003cp\u003eThat matters most on repairs and retrofits, where an original 1\/2 in run has to feed a component plumbed for 3\/8 in. Instead of adapting through pipe thread and hoping the sealant holds, you carry the reduction inside a single brass part rated for the brake circuit. It is a universal-application fitting that suits tractors, straight trucks and trailers alike.\u003c\/p\u003e\n\n\u003cp\u003eAt FleetPro Parts \u0026amp; Tires, we know the cleanest air repair is the one with the fewest joints. This Automann union is a direct replacement for highly searched industry numbers including \u003cstrong\u003eGates G31400-0806\u003c\/strong\u003e, \u003cstrong\u003eGates 8AB-6AB\u003c\/strong\u003e and Velvac 017085.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eVehicle Fitment \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis DOT brass air fitting uses a universal design intended for the following commercial applications:\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMake\/Model:\u003c\/strong\u003e Universal - heavy-duty tractors and commercial trailers\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Air brake plumbing, DOT-approved for heavy-duty air brake systems\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e 1\/2 in push-lock tube end to 3\/8 in push-lock tube end\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompliance:\u003c\/strong\u003e Meets FMVSS 571.106\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eDirect Replacement \u0026amp; Cross-Reference Numbers:\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eThis Automann brass fitting serves as a direct replacement for the following part numbers:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGates Interchange:\u003c\/strong\u003e G31400-0806, G314000806, 8AB-6AB, 8AB6AB\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVelvac Interchange:\u003c\/strong\u003e 017085\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAutomann Distributor #:\u003c\/strong\u003e 177.13B6268\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Brass PLC Reducing Union Coupling\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 1\/2 in to 3\/8 in\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brass\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Universal\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompliance:\u003c\/strong\u003e FMVSS 571.106, DOT-approved for heavy-duty air brake systems\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProduct Level:\u003c\/strong\u003e Fleet Standard Aftermarket\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Automann (Distributed by FleetPro Parts \u0026amp; Tires)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Automann","offers":[{"title":"Default Title","offer_id":43023816163399,"sku":"177.13B6268","price":12.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/8035\/2583\/files\/image_1920_d4681323-f158-4585-a9d0-efb6735ecbef.jpg?v=1785419664","url":"https:\/\/fleetpropt.com\/products\/brass-push-lock-reducing-union-1-2-to-3-8-dot-air-brake-tubing-coupling-replaces-gates-g31400-0806-8ab-6ab-177-13b6268","provider":"FLEETPRO PARTS \u0026 TIRES ","version":"1.0","type":"link"}