{"product_id":"muncie-a20a1008hx3bbpx-allison-pto-sae-b","title":"Muncie A20A1008HX3BBPX A20 Clutch-Shift PTO, Allison 3000\/4000, 0.84:1, SAE B 7\/8\" 13-Spline","description":"\u003cp\u003e\u003cstrong\u003eMuncie A20A1008HX3BBPX\u003c\/strong\u003e is a medium-duty, 10-bolt clutch-shift power take-off configured for compatible Allison 3000\/4000 Series transmissions. Its \u003cstrong\u003eBB direct-mount output\u003c\/strong\u003e pairs an \u003cstrong\u003eSAE B two- or four-bolt pump flange with a 7\/8-inch, 13-tooth SAE B spline\u003c\/strong\u003e. Match both the mounting pattern and pump input shaft before selecting a hydraulic pump.\u003c\/p\u003e\n\u003cp\u003eThe ratio-08 gear option provides 0.84:1 internal gearing, with HX 12 V electric\/hydraulic shift and a PX standard hose kit. Arrangement 3 positions the output on the left side with the shaft low. \u003cstrong\u003eThe hydraulic pump is selected separately\u003c\/strong\u003e; the PTO's output speed, torque, pump rotation, and physical clearance must suit the complete system.\u003c\/p\u003e\n\u003ch2\u003eDirect pump mounting with SAE B fitment\u003c\/h2\u003e\n\u003cp\u003eThe rotatable output flange offers 30 indexed positions to help orient a matching pump. Check clearance for the pump housing, fittings, and hose bends at the selected position. Muncie's A20 design also uses tapered roller bearings and a rotatable shift cover; the HX controls provide the cab switch and connections for PTO engagement.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eFeature\u003c\/th\u003e\n\u003cth scope=\"col\"\u003ePractical benefit\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBB pump output\u003c\/th\u003e\n\u003ctd\u003ePairs the SAE B two- or four-bolt flange with a 7\/8-inch 13-tooth spline for a matching pump.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eRotatable flange\u003c\/th\u003e\n\u003ctd\u003eOffers 30 indexed positions to help fit the pump around chassis components.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eArrangement 3\u003c\/th\u003e\n\u003ctd\u003ePlaces the output on the left side with the shaft low.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHX\/PX package\u003c\/th\u003e\n\u003ctd\u003eProvides 12 V activation hardware and the standard hose kit for this configuration.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eA20A1008HX3BBPX\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer part number\u003c\/th\u003e\n\u003ctd\u003eA20-A1008-HX3BBPX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSeries \/ mounting\u003c\/th\u003e\n\u003ctd\u003eA20 medium-duty clutch-shift; Allison 10-bolt opening\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eInput gear \/ internal ratio\u003c\/th\u003e\n\u003ctd\u003eA10 for Allison 3000\/4000 Series; ratio 08, 0.84:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOutput speed\u003c\/th\u003e\n\u003ctd\u003e114% of engine speed for listed Allison 3000 applications; 163% for listed 4000 applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOutput rating\u003c\/th\u003e\n\u003ctd\u003e360 lb-ft continuous and intermittent; 69 hp at 1,000 PTO rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eShift \/ arrangement\u003c\/th\u003e\n\u003ctd\u003eHX 12 V electric\/hydraulic; 3 left-side shaft-low\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOutput \/ hose option\u003c\/th\u003e\n\u003ctd\u003eBB: SAE B two- or four-bolt flange, 7\/8-inch 13-tooth spline; PX: standard hose kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eApplications and included components\u003c\/h2\u003e\n\u003cp\u003eMuncie's Allison application record lists this exact part number for the left-side 10-bolt opening on a 3700\/3700 SPS application at 114% of engine speed. The A10 series also covers compatible Allison 4000 configurations, where the ratio-08 speed is 163%. Verify the specific transmission, serial details, PTO opening, and chassis layout before relying on family-level fitment.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eComponent or application\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSelection detail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAllison 3700 \/ 3700 SPS\u003c\/th\u003e\n\u003ctd\u003eExact application record lists A20-A1008-HX3BBPX, 114% engine speed, 360 lb-ft, and 69 hp.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAllison 4000 Series\u003c\/th\u003e\n\u003ctd\u003eRatio-08 series speed is 163% of engine speed; verify the specific 4000 model and opening.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHX\/PX installation kit\u003c\/th\u003e\n\u003ctd\u003eCurrent kit 48TK6720 includes 30T43806 12 V switch kit, pressure switch, wiring harness, Allison input cable, standard 28-inch hose kit, studs, gasket, and labels.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCab switch\u003c\/th\u003e\n\u003ctd\u003e30T43806 includes rocker switch 30T35687, bracket 36T42362, and faceplate 36T42380. Muncie Start and overspeed control are separate options.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eBefore ordering\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eCheck\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eWhy it matters\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTransmission and opening\u003c\/th\u003e\n\u003ctd\u003eConfirm the model, serial number, left-side 10-bolt opening, and PTO drive limits.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePump fit and clearance\u003c\/th\u003e\n\u003ctd\u003eMatch the SAE B flange and 7\/8-inch 13-tooth female pump input; check rotation and room for pump and hoses.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOutput speed and load\u003c\/th\u003e\n\u003ctd\u003eSize the pump for the applicable 114% or 163% engine-speed relationship and 360 lb-ft rating. Muncie's listed 3700 application cautions against exceeding 2,500 PTO output rpm; confirm any application-specific exception separately.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eActivation\u003c\/th\u003e\n\u003ctd\u003eProvide 12 V power, connect Allison PTO enable while engaged, and mount the engagement indicator in view of the operator.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eNeed help matching this PTO to your transmission and pump? Contact UnitedBuilt through online chat, email \u003cstrong\u003e\u003ca href=\"mailto:parts@unitedbuilt.com\"\u003eparts@unitedbuilt.com\u003c\/a\u003e\u003c\/strong\u003e, or call \u003cstrong\u003e\u003ca href=\"tel:+16022537750\"\u003e602-253-7750\u003c\/a\u003e\u003c\/strong\u003e with your transmission model and serial number, pump part number, and chassis details.\u003c\/p\u003e","brand":"Muncie","offers":[{"title":"Default Title","offer_id":52825092751649,"sku":"0012711","price":2680.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/9245\/1361\/files\/A20_Render3_blue_tweak.jpg?v=1781034657","url":"https:\/\/watertrucks.com\/en-ca\/products\/muncie-a20a1008hx3bbpx-allison-pto-sae-b","provider":"UnitedBuilt Equipment","version":"1.0","type":"link"}