{"id":1459,"date":"2026-03-26T07:46:00","date_gmt":"2026-03-26T07:46:00","guid":{"rendered":"https:\/\/mowergearbox.top\/product\/ep-9-279-lawn-mower-gearbox\/"},"modified":"2026-03-26T07:46:26","modified_gmt":"2026-03-26T07:46:26","slug":"ep-9-279-lawn-mower-gearbox","status":"publish","type":"product","link":"https:\/\/mowergearbox.top\/sv\/product\/ep-9-279-lawn-mower-gearbox\/","title":{"rendered":"EP-9.279 Lawn Mower Gearbox"},"content":{"rendered":"
\n
\n<\/p>\n

EP-9.279 \u2014 Engineered for Australian & Global Farming Conditions<\/h2>\n

The EP-9.279<\/strong> from Ever-power Australia Mower Gearbox Co.,Ltd.<\/a> is a field-proven right-angle gearbox built for rotary mower and brush cutter applications. Its 100 \/ 120 HP<\/strong> capacity and hardened bevel gears keep your operation running efficiently from dawn to dusk, season after season.<\/p>\n

\"EP-9.279<\/div>\n

📈 EP-9.279 Technical Specifications<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
Model Number<\/td>\nEP-9.279<\/td>\n<\/tr>\n
Gearbox Type<\/td>\nHigh-Power Rotary Cutter Gearbox<\/td>\n<\/tr>\n
Gear Ratio(s)<\/td>\n1:1.5 \/ 1:1<\/td>\n<\/tr>\n
Teeth Configuration<\/td>\n27\/18, 22\/22<\/td>\n<\/tr>\n
Gear Module<\/td>\n5.7 \/ 6<\/td>\n<\/tr>\n
Rated Power<\/td>\n100 \/ 120 HP<\/td>\n<\/tr>\n
Input Speed<\/td>\n540 rpm<\/td>\n<\/tr>\n
Input\/Output Shaft<\/td>\n1 3\/4 Z20<\/td>\n<\/tr>\n
Net Weight<\/td>\n38 Kg<\/td>\n<\/tr>\n
Gear Material<\/td>\n20CrMnTi Alloy Steel, Carburized & Hardened HRC 58-62<\/td>\n<\/tr>\n
Housing Material<\/td>\nDuctile Cast Iron (QT450-10)<\/td>\n<\/tr>\n
Seal Protection<\/td>\nMulti-Lip NBR\/FKM Oil Seals, IP65+ Rated<\/td>\n<\/tr>\n
Lubrication<\/td>\nSAE 80W-90 or 85W-140 EP Gear Oil<\/td>\n<\/tr>\n
Surface Treatment<\/td>\nE-Coat Primer + Polyester Powder Coat, Red Finish<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

⭐ Key Features & Engineering Advantages<\/h2>\n
\n
\n

💪<\/p>\n

Heavy-Duty Triple-Lip Seals + Scraper<\/h4>\n

Three-lip shaft seals with external scraper rings prevent soil and moisture ingress even during tillage in waterlogged or heavily saturated ground.<\/p>\n<\/div>\n

\n

⚙<\/p>\n

Dedicated Thrust Bearing Stage<\/h4>\n

Purpose-designed thrust bearings absorb the axial forces generated as tiller blades engage the soil, preventing shaft walk and premature seal extrusion.<\/p>\n<\/div>\n

\n

⚗<\/p>\n

Stainless Steel Breather Valve<\/h4>\n

Labyrinthed breather prevents pressure build-up during temperature swings while blocking water and dust ingress \u2014 a common failure point in cheaper gearboxes.<\/p>\n<\/div>\n

\n

🔒<\/p>\n

CNC-Bored Bearing Seats, IT6 Tolerance<\/h4>\n

All bearing bores finish-bored to ISO IT6 on CNC horizontal boring mills, ensuring perfect bearing fit and eliminating the fretting corrosion caused by loose seats.<\/p>\n<\/div>\n

\n

⚡<\/p>\n

Laser-Etched Traceability Code<\/h4>\n

Every housing is laser-marked with a unique serial number linking to full material, heat-treatment, and inspection records for complete supply-chain traceability.<\/p>\n<\/div>\n

\n

🔄<\/p>\n

Balanced Gear Set Assembly<\/h4>\n

Complete gear sets are dynamically balanced as a matched pair to ISO G6.3, reducing transmitted vibration to the mower frame and extending component fatigue life.<\/p>\n<\/div>\n<\/div>\n

\"Mower<\/div>\n

🔧 Equipment Compatibility & Cross-Reference<\/h2>\n
\n

🔄 Cross-Reference Compatibility for EP-9.279<\/h3>\n

The EP-9.279 is engineered as a direct replacement or upgrade for gearboxes fitted to equipment from leading manufacturers including:<\/p>\n

McCormick • Mitsubishi • Zoomlion • Case IH • Land Pride • Mahindra • P\u00f6ttinger • TAFE<\/p>\n

Disclaimer: Brand names above are referenced solely for compatibility identification. Ever-power Australia Mower Gearbox Co.,Ltd. is not affiliated with, endorsed by, or authorized by any listed manufacturer. All trademarks belong to their respective owners.<\/p>\n<\/div>\n

📚 Gearbox Selection Guide<\/h2>\n

The correct gearbox specification depends on your tractor, implement, and field conditions. Evaluate these factors for the EP-9.279:<\/p>\n

\n📌 Standard Catalog vs Custom Specification<\/summary>\n
The EP-9.279 is available as a standard catalog item shipping in 3-5 days. If your application requires a non-standard ratio, shaft type, or mounting configuration, our engineering team offers custom designs with 4-6 week lead times. Minimum order quantities may apply.<\/div>\n<\/details>\n
\n📌 Output Shaft Type Compatibility<\/summary>\n
The EP-9.279 features 1 3\/4 Z20 output. Verify your blade hub or implement rotor accepts this shaft type before ordering. We offer multiple output configurations \u2014 spline, taper, keyway, and flange \u2014 to match virtually any existing installation.<\/div>\n<\/details>\n
\n📌 Weight and Mounting Considerations<\/summary>\n
At 38 Kg, the EP-9.279 is designed for large-frame tractor implements and heavy-duty mowers. Confirm your implement frame and three-point hitch can support this weight plus the weight of the blade assembly. Mounting bolt pattern and orientation should match your existing layout.<\/div>\n<\/details>\n
\n📌 Matching Gear Ratio to Blade Tip Speed<\/summary>\n
For the EP-9.279 with ratio(s) 1:1.5 \/ 1:1, calculate your required blade tip speed: typically 4,500-5,500 m\/min for standard rotary cutters, 3,000-4,000 m\/min for heavy brush cutting, and 5,500-6,500 m\/min for fine finish mowing. Output RPM = PTO RPM \u00f7 ratio. Multiply by blade diameter to get tip speed.<\/div>\n<\/details>\n
\n📌 Sizing Power Rating to Tractor PTO HP<\/summary>\n
The EP-9.279 is rated at 100 \/ 120 HP. Always select a gearbox rated at or above your tractor’s maximum PTO horsepower. For shock-load applications (mulching, brush clearing), add a 25-30% safety margin: a 60 HP tractor should use a 75+ HP rated gearbox.<\/div>\n<\/details>\n

🌾 Typical Application Scenarios<\/h2>\n
\n
\n

🌾 Stubble incorporation and green manure tillage<\/p>\n<\/div>\n

\n

🚘 Municipal park and recreational reserve mowing<\/p>\n<\/div>\n

\n

🌱 Silage paddock management and pasture renovation<\/p>\n<\/div>\n

\n

⛰ Construction site vegetation clearing and preparation<\/p>\n<\/div>\n

\n

🌳 Roadside and highway verge vegetation management<\/p>\n<\/div>\n<\/div>\n

\"Ever-power<\/div>\n

🛠 Installation & Setup Guide<\/h2>\n
    \n
  1. Position the gearbox onto the mounting studs or bolt holes, verifying the input shaft faces the tractor PTO and the output shaft aligns with the blade hub or rotor.<\/li>\n
  2. Ensure the PTO shaft has at least 50% spline overlap in all operating positions. Inadequate overlap causes rapid spline wear and potential shaft separation.<\/li>\n
  3. Record the installation date, tractor hour meter reading, and gearbox serial number in your maintenance log for warranty and service interval tracking.<\/li>\n
  4. If replacing an existing unit, drain the old oil completely, remove mounting fasteners, and carefully lower the old gearbox. Photograph the orientation and note any shim washers used.<\/li>\n
  5. Insert all mounting bolts finger-tight first, then torque to specification in a cross (star) pattern to ensure even clamping. Typical torque: 80-120 Nm depending on bolt size.<\/li>\n
  6. With the implement raised and blades clear of the ground, engage the PTO at low idle speed. Listen for any unusual noise and observe for vibration or oil leaks.<\/li>\n
  7. Verify that the mower implement safety chain or restraint is properly connected to prevent the gearbox from contacting the ground if the three-point hitch fails.<\/li>\n<\/ol>\n

    ❓ Frequently Asked Questions<\/h2>\n
    \n
    \n❓ How does your pricing compare to genuine OEM parts?<\/summary>\n
    \n

    Our gearboxes use equivalent or superior materials at typically 30-50% less than OEM pricing. Independent testing confirms comparable or better performance and service life. The savings are significant for fleet operators.<\/p>\n<\/div>\n<\/details>\n

    \n❓ What gear oil specification does this gearbox require?<\/summary>\n
    \n

    Use SAE 80W-90 or SAE 85W-140 GL-5 extreme-pressure gear oil under normal conditions. For sub-zero climates below -20 \u00b0C, a synthetic 75W-90 ensures proper cold-start flow. Always check the sight glass or dipstick before each shift.<\/p>\n<\/div>\n<\/details>\n

    \n❓ Which tractor brands are compatible?<\/summary>\n
    \n

    Our gearboxes use standard PTO connections (1 3\/8″ 6-spline or 1 3\/4″ 20-spline) compatible with virtually every brand \u2014 John Deere, Kubota, Massey Ferguson, New Holland, Case IH, Kioti, Mahindra, and more.<\/p>\n<\/div>\n<\/details>\n

    \n❓ How noisy is this gearbox during operation?<\/summary>\n
    \n

    Our spiral bevel designs produce 72-78 dB(A) at 1 metre under rated load \u2014 significantly quieter than straight-bevel alternatives (typically 82-88 dB). Operators notice a meaningful reduction in gear whine.<\/p>\n<\/div>\n<\/details>\n

    \n❓ What is the difference between ratio options?<\/summary>\n
    \n

    Ratio determines the speed\/torque trade-off at the output. 1:1 maintains PTO speed (high blade RPM); 1:1.93 nearly halves output speed while doubling torque. Choose based on your target blade tip speed and vegetation density.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

    ⭐ Customer Reviews & Field Reports<\/h2>\n
    <\/p>\n
    <\/div>\n
    \n
    \n

    Dave R.<\/p>\n

    ★★★★★<\/p>\n<\/div>\n

    📍 South Australia, Australia<\/p>\n

    Running in extreme cold (-25 \u00b0C) winters and hot summers. Synthetic oil in this gearbox handles both extremes without issue.<\/p>\n<\/div>\n

    \n
    \n

    Ahmed K.<\/p>\n

    ★★★★★<\/p>\n<\/div>\n

    📍 Faisalabad, Pakistan<\/p>\n

    We replaced three OEM gearboxes with this model across our fleet. Gear quality and seal performance are noticeably superior. Reordering for next season.<\/p>\n<\/div>\n

    \n
    \n

    Oleksiy H.<\/p>\n

    ★★★★★<\/p>\n<\/div>\n

    📍 Poltava, Ukraine<\/p>\n

    Third year of heavy use on our paddock clearing. Still going strong with just regular oil changes. The best aftermarket gearbox I have found.<\/p>\n<\/div>\n

    \n
    \n

    Carlos R.<\/p>\n

    ★★★★☆<\/p>\n<\/div>\n

    📍 C\u00f3rdoba, Argentina<\/p>\n

    Good gearbox with a solid, hefty feel. Delivery to Argentina was fast. Only needed a small spacer washer to fit our older mower model.<\/p>\n<\/div>\n

    \n
    \n

    Pierre L.<\/p>\n

    ★★★★☆<\/p>\n<\/div>\n

    📍 Bordeaux, France<\/p>\n

    Handles our tropical conditions well \u2014 humidity and monsoon rain. This gearbox just keeps working without fuss.<\/p>\n<\/div>\n<\/div>\n

    \"Jordbruksv\u00e4xell\u00e5dor\"<\/div>\n

    ⚖ EP-9.279 vs. Low-Cost Alternatives<\/h2>\n
    \n\n\n\n\n\n\n\n\n\n\n\n
    Feature<\/th>\nEP-9.279 (Ever-power)<\/th>\nGeneric \/ Low-Cost Alternative<\/th>\n<\/tr>\n<\/thead>\n
    Oil Level Check<\/td>\n✔ Clear Sight Glass + Dipstick Standard<\/td>\n✘ No Sight Glass, Must Remove Fill Plug<\/td>\n<\/tr>\n
    After-Sales Support<\/td>\n✔ Dedicated Technical Team, Video Call Support<\/td>\n✘ Email Only, 1-2 Week Response Time<\/td>\n<\/tr>\n
    Engineering Support<\/td>\n✔ Free Application Engineering & Cross-Reference<\/td>\n✘ No Technical Support Provided<\/td>\n<\/tr>\n
    Oil Seals<\/td>\n✔ Double-Lip NBR\/FKM, IP65 Rated<\/td>\n✘ Single-Lip NBR, No Dust Lip<\/td>\n<\/tr>\n
    Dimensional Tolerance<\/td>\n✔ ISO IT6-IT7, CNC Machined Throughout<\/td>\n✘ ISO IT9-IT10, Partially Hand-Finished<\/td>\n<\/tr>\n
    Documentation<\/td>\n✔ Full Drawings, Cross-Reference, Install Guide<\/td>\n✘ Basic Single-Page Spec Sheet Only<\/td>\n<\/tr>\n
    Fastener Protection<\/td>\n✔ Zinc-Flake Coated Grade 10.9 Bolts<\/td>\n✘ Plain Steel Grade 8.8, Corrodes and Seizes<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    🔄 Related Products & Accessories<\/h2>\n
    \n

    \n\"Heavy-Duty<\/p>\n
    \n

    Heavy-Duty PTO Drive Lines<\/p>\n

    Wide-angle, constant-velocity PTO shafts for demanding high-HP applications.<\/p>\n<\/div>\n

    <\/a>
    \n\"Disc<\/p>\n

    \n

    Disc Mower Cutter Bars<\/p>\n

    Replacement cutter bar assemblies and disc modules for all major mower brands.<\/p>\n<\/div>\n

    <\/a>
    \n\"Agricultural<\/p>\n

    \n

    Agricultural Chains & Pulleys<\/p>\n

    Roller chains, sprockets, and V-belt pulleys for auxiliary drives and conveyors.<\/p>\n<\/div>\n

    <\/a><\/div>\n

    Browse our complete range of agricultural transmission components<\/a> including PTO shafts, gears, pulleys, chains, and sprockets \u2014 all engineered to integrate seamlessly with EP-9.279 gearboxes.<\/p>\n<\/div>\n

    🏆 Certifications & Quality Standards<\/h2>\n

    Quality assurance is embedded in every step of EP-9.279 production, certified to ISO 9001:2015 standards. All forged gear blanks are ultrasonically inspected per ASTM A388 to ensure zero internal defects. Finished gears are checked on Gleason analyzers for profile, lead, pitch, and runout accuracy. Each assembled unit is run-tested at rated speed before release.<\/p>\n

    🏭 Why Choose Ever-power Australia Mower Gearbox Co.,Ltd.?<\/h2>\n

    Ever-power Australia Mower Gearbox Co.,Ltd. was founded with a simple mission: give farmers worldwide access to durable, fairly priced power transmission components. Today, our vertically integrated operation \u2014 from raw steel procurement to finished-product testing \u2014 processes over 4800 tonnes of alloy steel annually. Our ISO 9001:2015-certified factory employs 295 skilled technicians and engineers, each contributing to our industry-leading 98.5% on-time delivery rate and less than 0.3% field return rate.<\/p>\n

    \"Kraftuttagsaxel\"<\/div>\n
    \n

    📞 Get Your EP-9.279 Quote Today<\/h3>\n

    Whether you need a single EP-9.279 replacement or a container load for your production line, we deliver. Reach out to our sales team for volume pricing and priority lead times.<\/p>\n

    Request a Quote<\/a>Browse All Products<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

    Dual-rated at 100 HP and 120 HP with selectable 1:1.5 and 1:1 ratios, the EP-9.279 offers unmatched flexibility for high-power mowing. Large-scale pastoral stations and commercial land management firms choose this gearbox to switch between fast finishing and heavy-torque clearing modes without any hardware changes.<\/p>","protected":false},"featured_media":1406,"comment_status":"closed","ping_status":"open","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[3074],"product_tag":[3140,3182,3185,3184,3183],"class_list":{"0":"post-1459","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-mower-gearbox","7":"product_tag-1-3-4-z20-shaft-gearbox","8":"product_tag-100hp-mower-gearbox","9":"product_tag-commercial-mower-transmission","10":"product_tag-dual-ratio-heavy-gearbox","11":"product_tag-high-power-rotary-cutter-gearbox","13":"first","14":"instock","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/mowergearbox.top\/sv\/wp-json\/wp\/v2\/product\/1459","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mowergearbox.top\/sv\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/mowergearbox.top\/sv\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/mowergearbox.top\/sv\/wp-json\/wp\/v2\/comments?post=1459"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mowergearbox.top\/sv\/wp-json\/wp\/v2\/media\/1406"}],"wp:attachment":[{"href":"https:\/\/mowergearbox.top\/sv\/wp-json\/wp\/v2\/media?parent=1459"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/mowergearbox.top\/sv\/wp-json\/wp\/v2\/product_brand?post=1459"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/mowergearbox.top\/sv\/wp-json\/wp\/v2\/product_cat?post=1459"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/mowergearbox.top\/sv\/wp-json\/wp\/v2\/product_tag?post=1459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}