It is worth choosing a product that features stable performance, high reliability, easy installation, and quick response.<\/strong><\/p>\nThe final drive travel gearbox (Part No. 114\u20111357) converts the hydraulic motor\u2019s high\u2011speed rotation into the low\u2011speed, high\u2011torque output required to turn the track sprocket. Because the drivetrain on a 20\u202fton class CAT 325 must withstand heavy digging, tipping loads, track\u2011tension shock, and long travel cycles, this planetary gearbox is engineered for continuous high\u2011torque duty. However, when the original unit wears out, scrapping it and buying new OEM is often the most expensive approach to a routine powertrain repair. A professionally remanufactured gearbox delivers the same fit, torque rating, and service life for a fraction of the cost. Our remanufactured CAT 325 travel gearbox is a drop\u2011in solution that restores OEM driveline integrity without the OEM price tag.<\/span><\/p>\n1. Key Features & Benefits<\/span><\/h3>\n\n- \n
Direct-fit remanufactured travel gearbox<\/span><\/strong>\u00a0\u2013 Complete planetary assembly (Part No. 114\u20111357) designed as an exact replacement for CAT 325, 320B, 322B, 325B, 325B L, 322B L LOGGER, and related excavators.<\/span><\/p>\n<\/li>\n- \n
Essential drivetrain component<\/span><\/strong>\u00a0\u2013 The travel gearbox multiplies the hydraulic motor\u2019s torque and reduces its rotational speed to drive the track sprocket. Without a healthy planetary system, the machine loses all mobility. The gearbox\u2019s two\u2011speed reduction allows the operator to switch between high\u2011speed travel for moving around the site and low\u2011speed, high\u2011torque crawling for demanding digging, pushing, or climbing.<\/span><\/p>\n<\/li>\n- \n
Six\u2011step remanufacturing to like\u2011new standard<\/span><\/strong>\u00a0\u2013 Each core is fully disassembled, every component hot\u2011tanked and inspected, all worn or damaged parts (bearings, shafts, planetary carriers, rings, seals and wear plates) replaced with new OEM\u2011grade components, then reassembled and dyno\u2011tested to confirm proper torque output, gear contact pattern, and temperature rise [2\u2020L16-L17][10\u2020L8-L10][11\u2020L8-L10]. This is not a field repair or cosmetic cleanup \u2014 it is a manufacturing\u2011grade restoration.<\/span><\/p>\n<\/li>\n- \n
Planetary gear set, fully rebuilt<\/span><\/strong>\u00a0\u2013 The planetary assembly is the core of the travel gearbox, responsible for converting hydraulic motor speed into the torque needed to move your CAT 325. On these Caterpillar excavators, a unique design issue means the gear coupler (part of the hydraulic motor section) is lubricated by the gear oil from the planetary assembly [12\u2020L28-L33]. During remanufacturing, both the planetary gear set and the coupler are inspected and restored together.<\/span><\/p>\n<\/li>\n- \n
Common failures eliminated in reman<\/span><\/strong>\u00a0\u2013 Field failures on the CAT 325 final drive frequently involve low gear oil, which accelerates wear on gear teeth, coupler splines and bearings [12\u2020L34-L36]. Deteriorated seals also allow debris ingress, causing additional damage [3\u2020L7-L9][12\u2020L37-L41]. Our reman process installs new seals, high\u2011temperature grease, and GL\u20115 gear oil, resetting the housing to original cleanliness and sealing integrity \u2014 eliminating the most common field failure causes before the unit leaves the shop.<\/span><\/p>\n<\/li>\n- \n
Hydraulic contamination clean\u2011up<\/span><\/strong>\u00a0\u2013 Hydraulic system contamination often leads to swash plate scoring or cracking inside the travel motor [12\u2020L45-L49]. The gearbox and motor are separate units in these CAT excavators. When hydraulic oil has been contaminated, the gearbox is flushed, inspected, and restored to eliminate residual debris.<\/span><\/p>\n<\/li>\n- \n
Tested on a hydraulic dyno<\/span><\/strong>\u00a0\u2013 Every remanufactured travel gearbox is mounted to a test stand, connected to a hydraulic power unit, and run through both speed ranges under load [14\u2020L55-L56]. Test parameters include operating pressure, shaft speed, case drain flow, brake holding torque, and noise\/vibration levels.<\/span><\/p>\n<\/li>\n- \n
Visual verification before shipping<\/span><\/strong>\u00a0\u2013 Before packing, we send you detailed high\u2011resolution photographs of the final drive, including close\u2011ups of the mounting flange and port threads. You approve the condition \u2014 we do not ship blind.<\/span><\/p>\n<\/li>\n- \n
100% certainty fitment guarantee<\/span><\/strong>\u00a0\u2013 When you provide your machine\u2019s serial number, we cross\u2011reference the mounting flange bolt pattern, torque rating, planetary ratio, and sprocket drive dimensions before release. This ensures that every unit matches the drivetrain configuration originally installed on your CAT 325. [8\u2020L10-L12]<\/span><\/p>\n<\/li>\n- \n
Professional export packaging<\/span><\/strong>\u00a0\u2013 Each final drive is securely packed in a heavy\u2011duty, fumigation\u2011free wooden case with internal bracing and padding to prevent damage during transit. Custom packaging options are also available on request.<\/span><\/p>\n<\/li>\n- \n
Fast delivery<\/span><\/strong>\u00a0\u2013 5\u20138 working days lead time from our Guangzhou warehouse. Monthly supply capacity of 300 units, available for single or bulk orders.<\/span><\/p>\n<\/li>\n<\/ul>\n2. Applications<\/span><\/h3>\nThe CAT 325 final drive travel gearbox is used across a wide range of heavy industries where track\u2011mounted mobility is critical:<\/span><\/p>\n\n- \n
Mining and quarry operations<\/span><\/strong>\u00a0\u2013 25\u202fton class excavators endure extreme shock loads, abrasive dust, and long continuous shifts. A remanufactured planetary gearbox with new bearings and seals provides the same durability as new at a fraction of the cost [5\u2020L27-L31]. When the original unit fails in a remote site, a pre\u2011remanufactured gearbox minimizes extended downtime.<\/span><\/p>\n<\/li>\n- \n
Heavy construction and earthmoving<\/span><\/strong>\u00a0\u2013 Highway projects, dam construction, large\u2011scale site preparation, and pipeline trenching all demand consistent travel performance. A failing gearbox leaves a 20\u202fton excavator immobile in the middle of a job site \u2014 and towing a machine of this class is neither quick nor cheap.<\/span><\/p>\n<\/li>\n- \n
Demolition and scrap processing<\/span><\/strong>\u00a0\u2013 25\u202fton excavators working in demolition or metal recycling face intense vibration, sharp debris, and repeated hard impacts against the undercarriage. The planetary gearing inside the travel gearbox must absorb these extreme shocks without internal damage. A freshly remanufactured unit ensures that capability is restored.<\/span><\/p>\n<\/li>\n- \n
Forestry and land clearing<\/span><\/strong>\u00a0\u2013 Steep slopes, soft ground, and hidden obstacles are routine in forestry applications. A reliable travel gearbox with predictable two\u2011speed shifting prevents machine\u2011stranding failures far from repair support.<\/span><\/p>\n<\/li>\n- \n
Equipment rental fleet maintenance<\/span><\/strong>\u00a0\u2013 Renters are hard on undercarriage components. A travel gearbox that fails mid\u2011rental damages customer relationships and costs days of lost revenue. A remanufactured unit provides a fresh start at a cost that makes proactive replacement economically sensible [14\u2020L9-L12].<\/span><\/p>\n<\/li>\n- \n
Cold climate and winter operations<\/span><\/strong>\u00a0\u2013 In sub\u2011zero environments, worn seals and bearing cages are far more likely to fail. Our remanufacturing process includes new cold\u2011rated seals and high\u2011grade GL\u20115 gear oil when specified for your operating environment.<\/span><\/p>\n<\/li>\n- \n
Aftermarket engine and drivetrain rebuilds<\/span><\/strong>\u00a0\u2013 When overhauling a CAT 325\u2019s driveline, installing a fresh remanufactured gearbox alongside a new undercarriage ensures that the weakest link in the track drive is eliminated. This is standard practice for fleets that want to extend machine life beyond 15,000 service hours.<\/span><\/p>\n<\/li>\n<\/ul>\n3. Why Choose Hongtengda Parts \u2013 The Remanufacturing Advantage<\/span><\/h3>\nThe CAT 114\u20111357 travel gearbox houses the planetary geartrain that multiplies torque to move your excavator. When the original unit wears out \u2014 scoring on the planetary shafts, pitting of the gear teeth, bearing cage fatigue, or seal failure \u2014 a properly remanufactured unit delivers the same torque rating and service life as new, at a fraction of the cost.<\/span><\/p>\nCommon field failures on the CAT 325 final drive include:<\/span><\/strong><\/p>\n\n- \n
Gear oil neglect<\/span><\/strong>\u00a0\u2014 Low oil level accelerates wear on gear teeth, coupler splines, and bearings, eventually leading to a complete lock\u2011up [12\u2020L34-L37].<\/span><\/p>\n<\/li>\n- \n
Seal failure<\/span><\/strong>\u00a0\u2014 A failing seal allows gear oil to escape and debris to enter, causing extensive damage to the planetary assembly [3\u2020L7-L9][12\u2020L37-L41].<\/span><\/p>\n<\/li>\n- \n
Hydraulic contamination<\/span><\/strong>\u00a0\u2014 Contamination leads to scored or cracked swash plates, reducing performance or causing catastrophic failure [12\u2020L45-L49].<\/span><\/p>\n<\/li>\n- \n
Aged gear oil<\/span><\/strong>\u00a0\u2014 Oil that is never changed takes on a pudding\u2011like consistency and becomes worse than having no oil at all [12\u2020L41-L44].<\/span><\/p>\n<\/li>\n<\/ul>\nOur remanufacturing process eliminates these failure modes:<\/span><\/strong><\/p>\n\n- \n
Complete disassembly<\/span><\/strong>\u00a0\u2014 Every final drive is stripped to bare housings. Bearings, seals, O\u2011rings, and gaskets are always replaced with new. Planetary carriers, rings, and shafts are inspected and salvaged only if within spec.<\/span><\/p>\n<\/li>\n- \n
Gear oil system reset<\/span><\/strong>\u00a0\u2014 The housing is flushed to remove old degraded oil. New GL\u20115 gear oil is filled to OEM level before shipment.<\/span><\/p>\n<\/li>\n- \n
Sealing integrity restored<\/span><\/strong>\u00a0\u2014 New Duo\u2011Cone floating seals and O\u2011rings are installed, preventing cross\u2011contamination between the hydraulic motor section and planetary gearbox [12\u2020L30-L33].<\/span><\/p>\n<\/li>\n- \n
Dyno testing<\/span><\/strong>\u00a0\u2014 Every unit is run through both speed ranges under load, verifying torque output, operating pressure, and case drain flow.<\/span><\/p>\n<\/li>\n- \n
90% stock availability<\/span><\/strong>\u00a0\u2013 CAT 325 final drive travel gearboxes (114\u20111357) are in stock and ready for immediate dispatch from our Guangzhou warehouse. No waiting for backorders or overseas shipments.<\/span><\/p>\n<\/li>\n- \n
24\u2011hour shipment<\/span><\/strong>\u00a0\u2013 From our Guangzhou hub to your forwarder in 1 day; international orders shipped within 24 hours via sea, air, or express courier.<\/span><\/p>\n<\/li>\n- \n
Pre\u2011shipment visual verification<\/span><\/strong>\u00a0\u2013 Every unit is photographed before packing. You receive clear, high\u2011resolution images confirming the condition, paint finish, and port thread integrity. You approve shipment \u2014 we do not ship blind.<\/span><\/p>\n<\/li>\n- \n
One\u2011stop sourcing<\/span><\/strong>\u00a0\u2013 We also supply complete travel motors, swing motors, hydraulic pumps, control valves, undercarriage components (track rollers, idlers, sprockets, track chains), engine parts, and full rebuild kits for Caterpillar, Komatsu, Hitachi, Kobelco, Hyundai, SANY, and XCMG machines.<\/span><\/p>\n<\/li>\n- \n
Technical support before and after<\/span><\/strong>\u00a0\u2013 Our in\u2011house workshop team can confirm fitment (send your machine serial number), provide installation guidance, and help troubleshoot any issues during commissioning [14\u2020L50-L56].<\/span><\/p>\n<\/li>\n<\/ul>\nSend us your CAT 325 machine serial number \u2013 we will confirm final drive compatibility and provide a quote within 2 hours.<\/span><\/strong><\/p>\n4. Before You Order \u2013 Quick Compatibility Check<\/span><\/h3>\nSend us:<\/span><\/p>\n\n- \n
Machine serial number<\/span><\/strong>\u00a0(325, 320B, 322B, 325B, or other compatible models) \u2013 this is essential; final drive mounting patterns changed between production years<\/span><\/p>\n<\/li>\n- \n
Optional but helpful:<\/span><\/strong>\u00a0a photo of your old travel gearbox (showing the mounting flange, port locations, and any visible part number markings)<\/span><\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"\n\n\n| \u0395\u03c6\u03b1\u03c1\u03bc\u03bf\u03c3\u03c4\u03ad\u03bf \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf<\/b><\/td>\n | CAT325<\/td>\n<\/tr>\n |
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\n| \u03a4\u03cd\u03c0\u03bf\u03c2 \u03a0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03bf\u03c2<\/b><\/td>\n | \u03a3\u03c5\u03b3\u03ba\u03c1\u03cc\u03c4\u03b7\u03bc\u03b1 \u03a4\u03b1\u03be\u03b9\u03b4\u03b9\u03bf\u03cd<\/td>\n<\/tr>\n |
\n| \u039a\u03b1\u03c4\u03b7\u03b3\u03bf\u03c1\u03af\u03b1<\/b><\/td>\n | \u03a3\u03c5\u03b3\u03ba\u03c1\u03cc\u03c4\u03b7\u03bc\u03b1 \u03a4\u03b1\u03be\u03b9\u03b4\u03b9\u03bf\u03cd<\/td>\n<\/tr>\n |
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