Maikeyier specializes in the manufacturing and supply of combine harvester chassis components, covering a full range of running system parts including track rollers, guide wheels, drive sprockets, guide rails, lift wheels, and more. We provide reliable one-stop chassis parts solutions to the global agricultural aftermarket. To date, we have served customers in more than 25 countries and regions worldwide.
Popular Combine Harvester Chassis Parts
The running chassis of a combine harvester bears the full machine weight, ensures field mobility, and determines operational stability. Chassis components are among the fastest-wearing parts on a harvester, making them an important category in the agricultural aftermarket and a high-frequency demand item in Maikeyier’s parts range.
Lift Wheel
Controls the lifting height of the header and chassis to adapt to different terrains
Compatible with mainstream harvester brands
Chassis Lift Assembly
Core component of the chassis lifting mechanism, ensuring machine passability
Universally compatible with a full range of combine harvesters
Carrier Roller
Supports track movement and reduces friction resistance between the track and the ground
Specifically for tracked harvesters
Guide Wheel Bracket
Fixes the guide wheel position to ensure stable track running trajectory
Compatible with various brands of tracked harvesters
Drive Sprocket
Connects the transmission to the track to deliver travel power
For all series of tracked harvesters
Track Roller
Bears the full machine weight and ensures smooth travel
For all series of tracked harvesters
Guide Rail
Guides the track running path and prevents misalignment or derailment Compatible with various track systems
Guide Wheel
Adjusts track tension and ensures stable travel direction For all series of tracked harvesters
Chassis Parts Classification
The combine harvester chassis running system consists of travel drive components, chassis lift and suspension components, and track system components. Maikeyier supplies complete machine parts. Leave your requirements list with us for a free quote!
Travel Drive Components
Component | Function | Common Failures |
Drive sprocket | Transmits transmission power to the track to drive the machine forward | Tooth surface wear, tooth breakage, loose mounting bolts |
Track roller | Bears the full weight of the harvester and rolls under the track for support | Roller body wear, bearing damage, seal failure causing oil leakage |
Guide wheel | Guides the track running direction and adjusts track tension | Uneven wheel wear, tensioning device failure |
Carrier roller | Supports the upper part of the track to reduce sagging | Bearing damage, roller body wear |
Guide rail | Defines the track running path and prevents derailment | Rail deformation, excessive wear |
Chassis Lift and Suspension Components
Component | Function | Common Failures |
Lift wheel | Controls chassis lift to adapt to different terrains and working heights | Lift sticking, hydraulic cylinder seal failure |
Chassis lift assembly | Core control for the entire chassis lift system | Hydraulic system leakage, uneven lifting |
Guide wheel bracket | Fixes the guide wheel and bears tensioning force | Bracket deformation, weld cracks |
Suspension arm | Connects the running wheels to the chassis frame | Deformation, bushing wear |
Track System Components
Component | Function | Common Failures |
Rubber track | The final travel actuator of the machine | Track cracking, tread wear, exposed steel cord |
Track tensioning device | Maintains proper track tension | Tension spring failure, adjusting bolt corrosion |
Track link | Chain rail connecting unit (for steel tracks) | Rail wear, pin loosening |
Component Overview
Component | Material | Process | Compatible Brands |
Track roller | Alloy steel | Forging + heat treatment + precision machining | Kubota / Yanmar / Lovol / World |
Guide wheel | Alloy steel | Forging + heat treatment + precision machining | Kubota / Yanmar / Lovol / World |
Drive sprocket | Alloy steel | Forging + heat treatment + tooth machining | Kubota / Yanmar / Lovol / World |
Carrier roller | Alloy steel | Forging + precision machining | Kubota / Yanmar / Lovol / World |
Guide rail | Structural steel | Sheet metal + welding + machining | Kubota / Yanmar / Lovol / World |
Lift wheel | Alloy steel | Forging + precision machining | Kubota / Yanmar / Lovol / World |
Guide wheel bracket | Structural steel | Welding + machining | Kubota / Yanmar / Lovol / World |
Chassis lift assembly | Assembly | Multi-process combination | Kubota / Yanmar / Lovol / World |
Combine Harvester Chassis Parts Manufacturers
Harvester chassis parts are divided into OEM chassis parts and aftermarket chassis parts. Common supplier types include the OEM itself and independent third-party parts factories. The two complement each other, offering customers the most cost-effective prices and the highest quality products.
OEM Chassis Parts Supply
OEM in-house production:Some core chassis components are produced by the OEM’s own factories.
Designated supporting suppliers:OEM-certified factories that produce according to original drawings and technical standards.
Authorized dealer network:Sold through OEM-authorized dealers to the aftermarket.
OEM Chassis Part Characteristics:
- Strictly follow original technical standards, offering the highest fit accuracy.
- Quality assured, but at a higher price.
- Centralized supply channels; parts for some older models may be discontinued.
Aftermarket Chassis Parts Manufacturers
Professional forging plants: Factories with forging capabilities, producing high-strength components such as track rollers and drive sprockets.
Comprehensive parts suppliers: Integrate forging, casting, machining, and other resources to cover full-category chassis parts.
Trading suppliers: Consolidate resources from multiple factories to offer one-stop procurement services.
Aftermarket Chassis Part Characteristics:
- Lower prices than OEM parts.
- Broader category coverage, supporting multi-brand compatibility.
- Flexible procurement with mixed-lot and stock-available options.
- Quality varies among suppliers; it is important to select professional manufacturers with manufacturing capability.
Maikeyier – Professional Combine Harvester Chassis Parts Manufacturer
Maikeyier, with forging capability at its core, focuses on the development and supply of combine harvester chassis parts. Operating with a “forging plant + full-category warehouse” model, we provide one-stop procurement services and the most cost-effective pricing to agricultural parts dealers, wholesalers, and repair shops worldwide.
- In-house forging plant:High-strength components such as track rollers, drive sprockets, and guide wheels are produced in-house by forging.
- Full category coverage:From the header, threshing and separation, cleaning, grain collection, and running wheel systems to guide rails and brackets – full coverage of the chassis system.
- Strict quality control:Spectrographic analysis of raw materials → forging temperature control → dimensional inspection → hardness testing → assembly testing; every batch is traceable.
- One-stop supply:Covers all series of chassis parts for four major brands – Kubota, Yanmar, Lovol, and World.
- OEM parts: In addition to aftermarket parts, Maikeyier also has OEM sources.
- Flexible procurement:Supports mixed-lot orders, small trial batches, and full-container exports.
- Fast delivery:Quick response for in-stock items; efficient production scheduling for custom orders.
OEM Chassis Parts vs. Aftermarket Chassis Parts
Comparison Aspect | OEM Chassis Parts | Aftermarket Chassis Parts (Maikeyier) |
Quality standard | Strictly follow OEM standards | Manufactured to OEM specifications; key performance indicators match OEM |
Installation fit | Perfect fit | Precise reverse-engineering; no modification needed during installation |
Price | Higher | Better price for same quality |
Supply channels | Authorized channels with regional restrictions | Direct supply globally with convenient procurement |
Category coverage | Limited to own brand | Covers all series of four major brands |
Procurement flexibility | Restricted by dealer system | Supports mixed-lot, small-batch, and full-container orders |
Support for older models | Some older models discontinued | Continuous supply covering both new and old models |
Selection Recommendations:
- For high-frequency wear parts such as track rollers, guide wheels, and drive sprockets, quality aftermarket chassis parts offer near-OEM quality at a lower price – a more cost-effective choice.
- For special custom parts or equipment still under warranty, OEM parts are recommended.
- For bulk maintenance and complete machine refurbishment, aftermarket chassis parts offer clear advantages in cost and supply efficiency.
Maikeyier Harvester Parts – Four-Brand Chassis Parts
Kubota Harvester Chassis Parts
Maikeyier supplies chassis parts for all series of Kubota combine harvesters, including AR series (AR1–AR5) | R series (R3–R11) | PRO series (PRO588I, etc.) | ER/RR/PR/GC/DC series | and other models starting with 4, 5, 7, 8, 9, 10, 100, 110, etc.
Kubota Part
Yanmar Harvester Chassis Parts
Compatible with all series of Yanmar combine harvesters, including AG series | C series | H series | Y series | GC series | G series | and other mainstream harvester models.
Yanmar Part
Lovol Harvester Chassis Parts
Compatible with all series of Lovol (Weichai Lovol) combine harvesters, including RG series (RG40/RG50/RG60) | 4LZ series (3.5/4.0/5.0/5.5/6.0/7.0/8.0) | F series | N series | G series.
Lovol Parts
FMWorld (World) Harvester Chassis Parts
Compatible with all series of FMWorld (World) combine harvesters, including RG series | 4LZ series | and other mainstream World harvester models.
Fmworld Parts
Combine Harvester Chassis Parts – FAQ
Under normal paddy field operating conditions, track rollers typically last 800–1,500 hours. Replacement is also needed when the roller body shows obvious uneven wear or grooves, when bearings produce abnormal noise or sticking, or when seal failure causes oil leakage.
No. Guide wheels and drive sprockets serve different functions in the chassis running system – the drive sprocket connects to the transmission to deliver power and has a toothed structure, while the guide wheel directs the track and adjusts tension without teeth. Their structures, dimensions, and mounting methods are different and cannot be interchanged.
Standard method: Park the harvester on level ground and apply about 30–50 kg of downward pressure at the center of the upper track. The track sag should be within 20–30 mm. Over-tightening increases running resistance and accelerates component wear; over-loosening may cause track derailment.
OEM chassis parts are produced by the OEM or its designated suppliers; aftermarket chassis parts are designed and produced by independent manufacturers according to OEM specifications. The biggest difference lies in price.
- Insufficient or leaking hydraulic oil.
- Aging seals in the lift cylinder.
- Sticking control valve.
- Corrosion at the lift mechanism pivot points.
Maikeyier chassis parts cover all mainstream models and discontinued models of four major brands: Kubota, Yanmar, Lovol, and World.
Chassis parts support mixed-lot orders; different categories can be combined in one order with flexible MOQ. Specific MOQs vary by product type. Please contact us for a detailed quotation.
- Remove mud and debris from track rollers, guide wheels, and drive sprockets.
- Check that each wheel rotates smoothly and without abnormal noise.
- Inspect seals for damage or oil leakage.
- Check track tension and adjust as needed.
- Apply grease to all grease nipples.
Every chassis component shipped by Maikeyier undergoes rigorous quality inspection and packaging to ensure reliable strength and durability in demanding field operating conditions. In addition to harvester chassis components, we also support mixed-batch orders for other parts and harvester ware parts. Please submit your requirements list to receive a free quote!