{"product_id":"4-2-inch-replacement-transmission-filter-kit-for-allison-3000-4000","title":"4.2 Inch Replacement Transmission Filter Kit for Allison 3000-4000","description":"\u003cp\u003eIn this review the focus is on a practical replacement option for technicians and fleet owners who maintain Allison 3000 and 4000 series transmissions. The 4.2 Inch Replacement Transmission Filter Kit from Big Filter is presented as a direct interchange with Allison P\/N 29526899 and the bottom line is simple: it delivers a complete, made-in-USA filter service kit with high capacity filtration media so you can perform a full transmission service without sourcing separate gaskets or o-rings.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect interchange:\u003c\/strong\u003e Compatible with Allison P\/N 29526899 in form, fit and function, so installation follows the same steps as the OEM filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete kit:\u003c\/strong\u003e Includes two filters plus all required gaskets and o-rings, giving technicians everything needed for a single filter change without extra parts hunting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh capacity media:\u003c\/strong\u003e The glass media and specified beta ratio provide reliable particle capture to help protect the hydraulic circuits of Allison 3000-4000 transmissions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in USA:\u003c\/strong\u003e Manufactured under ISO controls in the United States, which supports consistent quality and traceable production standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction:\u003c\/strong\u003e Designed for high durability and resistance to flow fatigue, reducing the likelihood of premature failure between services.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFluid compatibility:\u003c\/strong\u003e Rated for HH, HL, HM and HV fluids so it suits the common transmission fluid types used in these Allison models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is best for fleet mechanics, independent repair shops, and owner-operators who maintain Allison 3000 and 4000 transmissions and prefer a direct-replacement, OEM-compatible filter option. The inclusion of two filters and a full set of seals makes it especially useful for scheduled maintenance intervals where minimizing downtime matters.\u003c\/p\u003e\n\u003cp\u003eIt is less suitable for someone who needs a single-piece specialty filter or an aftermarket performance element with different micron ratings; those buyers should verify specific micron or flow requirements before choosing this kit.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete kit saves time by including two filters and all gaskets and o-rings for a full service.\u003c\/li\u003e\n\u003cli\u003eDirect interchange with Allison P\/N 29526899 ensures fit and simplifies installation for trained technicians.\u003c\/li\u003e\n\u003cli\u003eManufactured to ISO specs and made in USA, supporting consistent quality control.\u003c\/li\u003e\n\u003cli\u003eGlass media and a strong beta ratio offer good particle removal for transmission protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLimited to the specified micron rating and media type, so users requiring a different filtration rating must check compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eTransmission\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Media\u003c\/td\u003e\n\u003ctd\u003eGlass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e4.21 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOD Top \/ Bottom\u003c\/td\u003e\n\u003ctd\u003e3.21 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eID Top\u003c\/td\u003e\n\u003ctd\u003e1.57 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMicron Rating\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFluid Type\u003c\/td\u003e\n\u003ctd\u003eHH \/ HL \/ HM \/ HV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Big Filter 4.2 in replacement kit is a sensible, value-oriented choice for anyone servicing Allison 3000-4000 transmissions who needs a complete, OEM-compatible kit. Its made-in-USA production and ISO-guided manufacturing make it a dependable option for routine maintenance, and the included seals and two filters reduce procurement steps for shops and operators.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this kit a direct replacement for Allison P\/N 29526899?\u003c\/strong\u003e\u003cbr\u003eYes. The filter kit is compatible in form, fit and function with Allison P\/N 29526899.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat fluids is the filter compatible with?\u003c\/strong\u003e\u003cbr\u003eThe element is rated for HH, HL, HM and HV fluid types commonly used in Allison transmissions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the kit include all seals needed for a service?\u003c\/strong\u003e\u003cbr\u003eYes. The package includes two filters plus all required gaskets and o-rings for a complete filter change.\u003c\/p\u003e","brand":"Big Filter","offers":[{"title":"Default Title","offer_id":48187837677787,"sku":"B078P1T36B","price":46.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61S0_S31vzL._SL1200.jpg?v=1769594362","url":"https:\/\/gearmusthave.com\/products\/4-2-inch-replacement-transmission-filter-kit-for-allison-3000-4000","provider":"GearMustHave","version":"1.0","type":"link"}