{"product_id":"rto16915-p-rtx16915-p-eaton-fuller-roadranger-15-speed-transmission-dpx-reman","title":"RTO16915-P | RTX16915-P | Eaton Fuller Roadranger | 15 Speed Transmission | DPX Reman","description":"\u003c!-- Product Hero --\u003e\n\u003ch2\u003eRTO16915-P \/ RTX16915-P \/ RTOF16915 \/ RTXF16915 | Eaton Fuller Roadranger 15-Speed Transmission — Remanufactured by DPX (Design Level 9)\u003c\/h2\u003e\n\n\u003c!-- Product Summary --\u003e\n\u003cp\u003eThe \u003cstrong\u003eRTO16915-P \/ RTX16915-P \/ RTOF16915 \/ RTXF16915\u003c\/strong\u003e is a heavy-duty Eaton Fuller Roadranger 15-Speed transmission (Design Level 9) with a manual 5-speed front section and air-shifted auxiliary section. Features the signature 2.794\"-54 spline output shaft and internal oil pump. \u003cstrong\u003eRemanufactured in Mansfield, Ohio by Discount Parts Exchange - DPX.\u003c\/strong\u003e Every unit is completely torn down, cleaned, inspected, and rebuilt to factory specifications with new bearings, seals, synchros, and air components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCall DPX to confirm: 419-522-3320.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003c!-- Highlights --\u003e\n\u003ch3\u003eHighlights\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e RTO16915-P \/ RTX16915-P \/ RTOF16915 \/ RTXF16915 — 15-Speed (Design Level 9)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Manual 5-speed front section + air-shifted auxiliary section\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Torque:\u003c\/strong\u003e 1,650 lb-ft\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Shaft:\u003c\/strong\u003e 2.794\" - 54 spline\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Shaft:\u003c\/strong\u003e S-1659 – 2.00\" 10 spline\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternal Oil Pump:\u003c\/strong\u003e Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOil Capacity:\u003c\/strong\u003e 28 pints\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 696 lb\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 33.1 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCommon Applications:\u003c\/strong\u003e Kenworth, Peterbilt, Volvo, Mack, Freightliner, International, Western Star, and other heavy-duty Class 8 trucks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- Gear Ratios --\u003e\n\u003ch3\u003eGear Ratios – Eaton Fuller 15-Speed (RTO\/RTX 16915 Series)\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ccaption\u003eEaton Fuller RTO16915-P \/ RTX16915-P 15-Speed Gear Ratios\u003c\/caption\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eGear\u003c\/th\u003e\n      \u003cth\u003eRatio\u003c\/th\u003e\n      \u003cth\u003e% Step\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eDeep Reduction\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e13.31\u003c\/td\u003e\n      \u003ctd\u003e—\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e1 Low\u003c\/td\u003e\n      \u003ctd\u003e7.83\u003c\/td\u003e\n      \u003ctd\u003e31%\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e1 High\u003c\/td\u003e\n      \u003ctd\u003e6.00\u003c\/td\u003e\n      \u003ctd\u003e30%\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e2 Low\u003c\/td\u003e\n      \u003ctd\u003e4.63\u003c\/td\u003e\n      \u003ctd\u003e30%\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e2 High\u003c\/td\u003e\n      \u003ctd\u003e3.57\u003c\/td\u003e\n      \u003ctd\u003e27%\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e3 Low\u003c\/td\u003e\n      \u003ctd\u003e2.81\u003c\/td\u003e\n      \u003ctd\u003e28%\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e3 High\u003c\/td\u003e\n      \u003ctd\u003e2.19\u003c\/td\u003e\n      \u003ctd\u003e31%\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e4 Low\u003c\/td\u003e\n      \u003ctd\u003e1.68\u003c\/td\u003e\n      \u003ctd\u003e29%\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e4 High\u003c\/td\u003e\n      \u003ctd\u003e1.30\u003c\/td\u003e\n      \u003ctd\u003e30%\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e5 Low\u003c\/td\u003e\n      \u003ctd\u003e1.00\u003c\/td\u003e\n      \u003ctd\u003e27%\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e5 High (Overdrive)\u003c\/td\u003e\n      \u003ctd\u003e0.79\u003c\/td\u003e\n      \u003ctd\u003e—\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eOverall Reduction:\u003c\/strong\u003e 16.94 • \u003cstrong\u003eLow-Low:\u003c\/strong\u003e 13.14 • \u003cstrong\u003eLow:\u003c\/strong\u003e 7.73 • \u003cstrong\u003eHigh:\u003c\/strong\u003e 2.17\u003c\/p\u003e\n\n\u003c!-- Understanding How a 15-Speed Transmission Works --\u003e\n\u003ch3\u003eUnderstanding How a 15-Speed Transmission Works\u003c\/h3\u003e\n\n\u003cp\u003eMany drivers and technicians look at the shift pattern and wonder: “Why does a 15-speed only show five positions?” The answer is simple once you understand how the air system multiplies those five main gears.\u003c\/p\u003e\n\n\u003cp\u003eThe RTO16915-P \/ RTX16915-P is built around a standard 5-speed front box (main gearbox). The remaining 10 speeds come from the air-shifted auxiliary section (back box) that sits behind the main box. That auxiliary section has two air-controlled functions:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRange Selector\u003c\/strong\u003e — switches the entire back box between Low range and High range\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSplitter Button\u003c\/strong\u003e — splits each main gear into a Low and High step (or Direct and Overdrive)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWhen you combine the 5 main gears with the Range and Splitter, you get the full 15 forward speeds (plus reverse). The shift pattern plate only shows the five lever positions because the Range and Splitter are controlled by the air switches on the shift knob — not by moving the stick into extra H-pattern positions.\u003c\/p\u003e\n\n\u003cp\u003eHere’s how it works in the seat:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eYou shift the stick through the five main gears exactly like a regular 5-speed\u003c\/li\u003e\n  \u003cli\u003eYou pre-select Range (Low or High) with the range lever or switch before you move the stick\u003c\/li\u003e\n  \u003cli\u003eYou use the splitter button on the shift knob for half-steps within each gear (especially useful in 5th–8th)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe two diagrams we have added below make this crystal clear:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShift Knob Airflow Diagram\u003c\/strong\u003e — shows exactly how air flows through the range and splitter valves when you move the switches on the knob\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOfficial Shift Pattern Diagram\u003c\/strong\u003e — shows the five lever positions and how Range + Splitter expand them into the full 15 speeds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eOnce you understand that the stick only selects the main gear and the air system multiplies it, the 15-speed becomes very straightforward to operate. Proper air supply and a correctly functioning A5000 range valve (included on every DPX reman unit) are critical for smooth range and splitter shifts.\u003c\/p\u003e\n\n\u003c!-- What’s Included --\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRemanufactured Eaton Fuller 15-Speed Roadranger transmission rebuilt to factory spec by Discount Parts Exchange - DPX\u003c\/li\u003e\n  \u003cli\u003eNew A5000 range valve, air hoses, and A5454\/K2170 air filter regulator\u003c\/li\u003e\n  \u003cli\u003e12-month, unlimited-mileage parts-only warranty\u003c\/li\u003e\n  \u003cli\u003eTech support from DPX during installation and break-in\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- Related Products --\u003e\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background:#f0f0f0;\"\u003e\n      \u003cth style=\"padding:12px; text-align:left; border:1px solid #ddd;\"\u003ePart Number\u003c\/th\u003e\n      \u003cth style=\"padding:12px; text-align:left; border:1px solid #ddd;\"\u003eMfr\u003c\/th\u003e\n      \u003cth style=\"padding:12px; text-align:left; border:1px solid #ddd;\"\u003eDescription\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:12px; border:1px solid #ddd;\"\u003e\u003ca href=\"https:\/\/truckparts4u.com\/products\/a-6915-eaton-fuller-15-speed-pistol-grip-shift-knob-blue-black-flippers-new-genuine\"\u003eA6915\u003c\/a\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding:12px; border:1px solid #ddd;\"\u003eEaton Fuller\u003c\/td\u003e\n      \u003ctd style=\"padding:12px; border:1px solid #ddd;\"\u003ePistol Grip Shift Knob – Blue\/Black Flippers (Standard)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:12px; border:1px solid #ddd;\"\u003e\u003ca href=\"https:\/\/truckparts4u.com\/products\/s2586-pistol-grip-style-shift-knob-eaton-fuller-roadranger-15-speed-blue-black-flippers-new-genuine\"\u003eS2586\u003c\/a\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding:12px; border:1px solid #ddd;\"\u003eEaton Fuller\u003c\/td\u003e\n      \u003ctd style=\"padding:12px; border:1px solid #ddd;\"\u003ePistol Grip Shift Knob with Printed Shift Pattern – 15-Speed\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003c!-- DPX Drivetrain Tools Hub Snippet --\u003e\n\u003ch3 style=\"color: #E6650E;\"\u003eDPX Drivetrain Tools Hub\u003c\/h3\u003e\n\u003cp\u003eFree tools built by rebuilders for mechanics, drivers, and fleets:\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; font-weight: 600; color: #E6650E;\"\u003e\n  \u003ca href=\"https:\/\/truckparts4u.com\/pages\/dpx-drivetrain-tools-hub\" style=\"color: #E6650E;\"\u003eRoad Speed Calculator\u003c\/a\u003e •\n  \u003ca href=\"https:\/\/truckparts4u.com\/pages\/dpx-drivetrain-tools-hub\" style=\"color: #E6650E;\"\u003eGear Ratio Charts\u003c\/a\u003e •\n  \u003ca href=\"https:\/\/truckparts4u.com\/pages\/dpx-drivetrain-tools-hub\" style=\"color: #E6650E;\"\u003ePTO Shimming Guide\u003c\/a\u003e •\n  \u003ca href=\"https:\/\/truckparts4u.com\/pages\/dpx-drivetrain-tools-hub\" style=\"color: #E6650E;\"\u003eFull IPL Library →\u003c\/a\u003e\n\u003c\/p\u003e\n\n\u003c!-- Tagline --\u003e\n\u003cp\u003e\u003cstrong\u003eDPX — Ohio’s Premier Heavy-Duty Drivetrain Rebuilder | Built to Perform. Trusted to Last.\u003c\/strong\u003e\u003c\/p\u003e","brand":"The Reman Center, Inc.","offers":[{"title":"Default Title","offer_id":56547894526118,"sku":"RTO16915-P","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/9287\/9270\/files\/RTO16915-P_RTX16915-P_Eaton_Fuller_15-Speed_Transmission_Side_View_Left_with_New_A5000_Range_Valve_DPX_Reman.jpg?v=1780080876","url":"https:\/\/truckparts4u.com\/products\/rto16915-p-rtx16915-p-eaton-fuller-roadranger-15-speed-transmission-dpx-reman","provider":"Discount Parts Exchange (DPX)","version":"1.0","type":"link"}