Product Introduction
This comprehensive spare parts catalog features direct-fit OEM replacement components for routine preventive maintenance, partial repairs, and full overhauls of Tucano MT14 and MT22 axle housings, covering all high-failure-rate axle components: vent assemblies, specialty hex bolts, wear sleeves, dust shields, sealing hardware, planetary gear parts, hub seals, shim kits, and mounting brackets. Unlike generic aftermarket alternatives, each component is built to the original Tucano axle design specifications, material grades, and dimensional tolerances, ensuring seamless installation, zero compatibility errors, and reliable performance under the extreme operating conditions of heavy-duty equipment use. The collection is curated to cover all critical axle housing parts needed to keep lubrication systems intact, fasteners secure, and internal drivetrain components protected from damage.
Functional Specifications
- Vent & Lubrication Components: Axle vent tubes, adapter fittings, and elbow vents regulate internal axle housing pressure to prevent seal blowout; magnetic drain plugs capture metal shavings to protect gears, while fill plugs enable clean lubricant changes.
- Sealing & Wear Protection Parts: Hub oil seals and wear sleeves block lubricant leakage and prevent debris intrusion; dust shields shield axle end components from dirt and moisture, extending seal and bearing life.
- Fastening & Mounting Hardware: Metric specialty hex bolts (M8/M10/M20) and lock washers provide secure, vibration-resistant fastening; vent brackets and brake chamber brackets hold critical components in alignment under heavy loads.
- Gear & Alignment Components: Planetary ring gears, support hubs, and precision shims (.50 MM) maintain proper gear meshing; spacers and snap rings secure internal components and prevent axial movement.
- Specialty Axle Assemblies: Seal holder assemblies and bumper assemblies (MT22N/H exclusive) streamline repairs and provide impact protection for heavy-duty axle configurations.
Structural Characteristics
All Tucano MT14/MT22 axle spare parts feature heavy-duty, industrial-grade construction for maximum durability: fasteners use heat-treated high-strength steel with corrosion-resistant coating to resist vibration loosening and rust; seals use oil-resistant, temperature-stable nitrile elastomers to maintain leak-proof performance; brackets and tubes use stamped/formed steel for rigid mounting; wear sleeves and shims use precision-ground steel for consistent dimensional accuracy. Components are designed for tool-friendly field installation, minimizing repair time during equipment downtime and reducing labor costs for remote job site maintenance.
Applicable Operating Conditions
These spare parts are engineered to perform reliably in the extreme conditions of Tucano heavy-duty axle operation, including:
- 24/7 continuous heavy-load operation for construction, off-highway, and commercial fleet equipment
- Exposure to dirt, mud, debris, and moisture in rugged job site environments
- Extreme cyclic vibration and mechanical stress from heavy hauling and equipment operation
- Ambient temperatures ranging from -25°C (-13°F) to 85°C (185°F) across diverse work sites
- Compliance with SAE J2334 corrosion resistance standards for heavy-duty drivetrain parts
Maintenance & Servicing Recommendations
- Pre-Installation Verification: Cross-reference OEM manufacturing numbers against Tucano MT14/MT22 axle technical manuals to confirm exact fitment; inspect parts for defects and clean all axle housing mating surfaces to remove grease, dirt, and metal shavings before assembly.
- Seal & Wear Sleeve Care: Replace hub seals and wear sleeves every 3,000 operating hours; lubricate seal lips with approved axle grease during installation to prevent premature wear; check for lubricant leaks immediately after axle reassembly and retorque fasteners as needed.
- Vent System Maintenance: Clear clogged vent tubes and fittings quarterly to prevent pressure buildup; inspect vent brackets for damage and replace bent or broken components to ensure proper pressure regulation.
- Fastener & Alignment Checks: Re-torque all hex bolts and lock washers to OEM torque specifications every 2,000 hours; replace worn or corroded fasteners promptly to maintain component alignment.
- Gear & Shim Inspection: Check planetary ring gears and shims for wear during axle overhauls; replace damaged shims and gears to preserve proper gear meshing and reduce noise/vibration.
We supply the following spare parts:
| Cataog Item Number | Manufactuning number | AXLE HOUSING |
| 3 | MT14-1068 | Vent |
| 25 | MT22-1105 | Hex Bolt, Special |
| 27 | MT22-1104 | Wear Sleeve Hub Seal (MT22 Only) 1991 and older |
| 28 | MT22-1176 | Dust Shield |
| 29 | 11500773 | Hex Bolt, M8 X 16 |
| 30 | 11500191 | Lock Washer, M8 |
| 45 | MT22-1139 | Adapter Fitting |
| 46 | MT22-1138 | Elbow Fitting, Vent |
| 47 | MT22-1140 | Jam Nut |
| 48 | 11500192 | Lock Washer, M10 |
| 49 | 11500778 | Hex Bolt, M10 X 25 |
| 50 | MT22-1135 | Bracket, Vent, L.H |
| 53 | MT22-1143B | Tube Vent, R.H. (Includes Items #51 and 52) |
| 54 | MT22-1144 | Pipe Fitting |
| 55 | MT22-1110 | Bolt M20 X 60 – 1.5 |
| 56 | MT22-1125 | Bolt, Turn Stop M20 X 47 – 1.5 |
| 60 | MT22-1129 | Brake Chamber Bracket, R.H. |
| 75 | MT22-1205 | Seal Holder Assembly (Incl. Items #10,11,12) 2 |
| 6 | MT14-1071 | Magnetic Drain Plug |
| 7 | MT14-1070 | Fill Plug |
| 8 | 11500723 | Hex Bolt, M10 X 20 |
| 9 | MT22-1156 | End Cover |
| 11 | MT22-1162 | Planetary Ring Gear |
| 12 | MT22-1163 | Ring Gear Support Hub |
| 13 | MT14-1207 | Retaining Ring |
| 15 | MT22-1153 | Spacer |
| 21 | MT22-1151 | Distance Ring |
| 10 | MT22-1172 | Oil Seal, Hub (MT22 Only) 1991 and older |
| 11 | MT22R-1164 | Exciter Ring (MT22R/N/H Only) |
| 12 | MT22R-1172 | Hub Seal (MT22R/N/H Only) |
| 8 | MT22-1179 | Oil Seal |
| 11 | MT22-1183 | Hex Bolt Special |
| 12 | MT14-1142 | Washer, Special |
| 14 | MT22-1201 | Spacer (MT22N/H Only) |
| 15 | MT22-1199 | Shim, .50 MM (MT22N/H Only) |
| 17 | MT17-1142 | Spacer |
| 18 | MT22-1187 | Wear Indication Disk |
| 19 | MT17-1141 | Snap Ring |
| 20 | MT14-1128 | Snap Ring |
| 21 | MT22-1240 | Bumper Assy., R.H. (MT22N/H Only) |
| 22 | 11500866 | Bolt M8 X 14 – 1.25 (MT22N/H Only) |
| 23 | 11500191 | Lock Washer M8 |
On-Site Tucano Axle Fault Repair Cases
Case 1: Axle Hub Seal Leakage & Lubricant Loss
A Tucano MT22 axle (1991 legacy model) experienced severe gear oil leakage from the hub seal, leading to low lubricant levels and increased gear wear. The leak was caused by a degraded MT22-1172 hub seal and a worn wear sleeve hub seal. Installing new OEM hub seals and wear sleeves, then reseating the dust shield, eliminated leaks and restored proper lubrication levels.
Case 2: Clogged Vent Causing Seal Blowout
A Tucano MT14 axle suffered a blown oil seal due to excessive internal pressure from a clogged vent tube and faulty elbow fitting. The pressure buildup ruptured the seal, causing gear oil contamination and equipment downtime. Replacing the clogged vent components (MT22-1138/1139) and damaged oil seal resolved the pressure issue and prevented future seal failure.
Case 3: Loose Fasteners & Component Misalignment
A Tucano MT22H axle developed abnormal noise and vibration, traced to loose M20 hex bolts and worn lock washers that caused brake chamber bracket misalignment. The misalignment damaged mounting surfaces and disrupted brake operation. Replacing the worn fasteners (MT22-1110) and realigning the brake chamber bracket eliminated vibration and restored proper component function.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible with both MT14 and MT22 Tucano axles? | Each part is labeled for model-specific fitment; MT-series parts are marked for MT14, MT22, or MT22R/N/H exclusive use, ensuring perfect compatibility with your axle configuration. |
| Do these seals fit 1991 and older MT22 legacy axles? | Yes, parts like MT22-1104 wear sleeve hub seals and MT22-1172 hub seals are designed specifically for 1991 and older MT22 axle models for direct OEM replacement. |
| What torque specs should be used for the hex bolts? | Follow OEM torque values: M8 bolts (22-25 Nm), M10 bolts (35-40 Nm), M20 bolts (180-200 Nm) to ensure secure, vibration-resistant fastening without thread damage. |
Procurement Guidance & Closing Statement
For maintenance teams, fleet managers, and repair specialists responsible for keeping Tucano MT14 and MT22 series axles operational in heavy-duty work environments, this spare parts catalog provides a fully OEM-compliant, quality-assured sourcing solution for all critical axle housing components. Backed by strict heavy-duty manufacturing standards and exact OEM part number matching, these components eliminate compatibility risks, streamline on-site repair workflows, and provide a clear technical benchmark to resolve axle faults quickly and effectively. Whether stocking for routine preventive maintenance, emergency seal/fastener repairs, or planned full axle overhauls, these model-specific spare parts ensure adherence to industrial safety and performance standards, minimize costly unplanned equipment downtime, and preserve the long-term service life of your Tucano axle systems. Secure the precise seals, fasteners, vents, and alignment components your MT14/MT22 axles need to maintain reliable, leak-free, and efficient heavy-duty operation.
