World Combine Harvester Parts & Components
One-stop supply of augers, cutter bars, threshing parts, sieves, tracks and wear parts for World “Dragon” series crawler, semi-feed and wheeled combine harvesters — from the best-selling Ruilong 4LZ-4.0E to the Super Ruilong 4LZ-10.0CR. Engineered to OEM specifications, matched by part number, and shipped to 58+ countries worldwide.
Match confirmed within 48 hours
Find Your World Model — Then Check Its Fast-Moving Parts
World’s product line centers on crawler full-feed combines across the Ruilong, Super Ruilong and feilong series, plus semi-feed and wheeled platforms. The 4LZ designation follows China’s agricultural machinery type code — we match every variant by OEM number. Press Ctrl+F to search this table.
| Series | Models Covered | Most-Requested Parts | Supply Mode |
|---|---|---|---|
|
RuilongCross-regional best-seller |
Header auger · Cutter knives & guards · Threshing teeth · Concave · Cleaning sieve · Track rollers · Drive belts |
OEM + Aftermarket
Highest volume — SE Asia staple |
|
|
Super RuilongStandardized high-yield |
Wide-cut header auger · Heavy-duty cutter bar · 500–550 mm track assemblies · High-capacity threshing teeth · Oversized concave |
OEM + Aftermarket
High stock depth |
|
|
FeilongDual-roller cleaning tech |
Dual threshing drum assembly · Secondary cleaning sieve · Concave grate set · Return auger · Drive belts |
OEM + Aftermarket
Specialist parts |
|
|
Semi-Feed SeriesRice straw preservation |
Semi-feed threshing elements · 1.5 m cutter bar · Narrow track pads · Feeding chain & sprockets · Stripper components |
OEM + Aftermarket
75–85 HP range |
|
|
Wheeled SeriesDry-field wheat & soybean |
Cross-axis threshing roller · Residual re-threshing device · Grain auger · Sieve assembly · Tire & axle components |
OEM + Aftermarket
Multi-crop config |
|
|
Export-Config ModelsMarket-specific variants |
Tropical-spec cooling parts · High-clearance undercarriage · Cotton picking head components · Multi-crop header adapters |
OEM + Aftermarket
Region-optimized |
Stock Smarter: Shared Parts Across Dragon Series
Why “Common Parts” Information Matters More Than a Price List
Most suppliers just sell you a part. We tell you which parts are deliberately worth stocking: components shared across multiple World models move faster, tie up less capital per covered machine, and turn your shelf into coverage for an entire model family. With World’s Dragon series, the cross-platform overlap is exceptional — the Ruilong alone covers 7 models sharing most fast-wear parts. Add Super Ruilong and Feilong to the mix, and a compact set of SKUs covers the majority of field repair demand across all crawler series.The Parts Your Market Reorders Every Season
Ranked by dealer reorder frequency. Every item is available OEM-spec or cost-efficient aftermarket — your choice per SKU.
Augers & Flighting
Cutter Bars & Knives
Threshing Parts
Sieves & Cleaning Parts
Belts, Bearings & Chains
Tracks & Undercarriage



Precision-Matched Parts for Every World Dragon Platform
From forged auger shafts to injection-molded nylon guides — each component is verified against OEM dimensions before production runs.




Quality Control at Every Stage
Each production batch undergoes dimensional inspection, hardness testing, material verification and appearance check before export-grade packing. For auger assemblies, we perform rotation balance testing and weld integrity inspection. For cutter bars, edge hardness is verified per piece. For rubber tracks, tension and lug depth are checked against World OEM tolerances — including the 500 mm and 550 mm high-lug variants used across the Dragon series. This systematic approach ensures that every shipment meets the same standard — whether it’s a trial order of 5 pieces or a full container load. Learn MoreFour Steps From Part Number to Confirmed Quote
Wrong-part shipments are the most expensive “cheap part” you can buy. Our matching process eliminates them.
Send Part Info
World OEM number from the part itself, or the machine model (e.g. 4LZ-6.0P) + part name.We Verify Compatibility
Cross-checked against OEM data and our Dragon series fitment records — within 48 hours.Quote With Options
OEM-spec and aftermarket versions quoted side by side, with MOQ and lead time.QC & Export Packing
Dimensional check, weld inspection and rotation test before export-grade packing.What World Operators Actually Replace — and When
Ruilong Is the Volume King — and Parts Follow
The Ruilong series (4LZ-4.0E through 4LZ-8.0EZ) accounts for the largest installed base globally. In Indonesia alone, World holds a 50% share of the rice harvester market — meaning every second combine in the archipelago is a World. Cutter knives, header auger flighting and track rollers are the first consumables to go in tropical paddy conditions. Dealers in Southeast Asia should treat these as standing inventory, not special orders.Track Width Variant Management Is Critical
World’s Dragon series uses two track widths — 500 mm (Ruilong) and 550 mm (Super Ruilong). The mounting points and roller specs are shared, but track length and lug patterns differ. A single “crawler parts” SKU won’t cover all models. We ship with exact width and lug-depth specs matched to each model to eliminate fitment issues at the dealer level.Central Asia Cotton Market Opens New Parts Demand
World’s cotton picker line has captured 40% market share in Central Asia, with a new 100-acre factory in southern Uzbekistan set for production in May 2026. This creates a parallel parts demand stream — cotton picking heads, row-unit components and specialized wear parts — that few aftermarket suppliers currently address.Africa: Fast-Growing, Price-Sensitive, High-Volume
From Nigeria to Kenya, World’s 4LZ-4.0E and similar small-feed models are the entry point for mechanized rice harvesting. In Kenya, World is already the most popular rice harvester brand. Parts demand here is price-driven — aftermarket quality at OEM-spec dimensions wins over genuine parts on cost, as long as fitment is exact.Top Markets for World Parts
- Southeast Asia — Ruilong dominant, Indonesia 50% share
- Central Asia — Cotton picker + wheat, 40% market share
- Africa — Nigeria, Kenya, Ghana, Tanzania — 4LZ-4.0E volume
- South Asia — India & Pakistan, wheat & rice
- South America & Europe — Growing deployment
Seasonal Restock Calendar
- Pre-season — cutter kits, knives, guards, belts
- Mid-season — augers, bearings, emergency wear parts
- Post-season — tracks, rollers, threshing components
Supply Modes Available
- OEM replacement — by World part number
- Aftermarket — cost-optimized, QC’d to same drawing
- Custom — from your sample or drawing
Also Supplying Kubota, Yanmar & Lovol Combine Parts
Cross-platform suppliers cut your sourcing workload — one QC standard, one shipping schedule, one invoice.
