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Yuchai Engine Aftermarket Parts -OEM Replacement Parts
Yuchai machines dominate Chinese diesel engine exports. You find them in trucks, buses, construction equipment, and generator sets across Southeast Asia, Africa, South America, and the Middle East. Overseas repair shops demand Yuchai replacement parts every single day. RJT PARTS stocks genuine and premium-grade aftermarket components for all major Yuchai overseas models, with ready inventory and fast global shipping. This guide breaks down the top-selling models and the high-frequency OEM part numbers we supply.
Top Yuchai Models in Overseas Markets
Yuchai sells 4-cylinder and 6-cylinder engines ranging from 100 to 480 horsepower. The following models show up most often in overseas repair yards. RJT PARTS carries deep stock for every model on this list.
| Model Series | Cylinders | Power Range | Common Applications | Bore (mm) | RJT PARTS Stock Status |
|---|---|---|---|---|---|
| YC4F | 4 | 90–140 HP | Light trucks, pickups, small machinery | 96 | In stock |
| YC4E | 4 | 140–160 HP | Medium trucks, buses, generators | 110 | In stock |
| YC4D | 4 | 120–130 HP | Light trucks, agricultural equipment | 100 | In stock |
| YC6A | 6 | 180–240 HP | Medium/heavy trucks, buses | 108 | In stock |
| YC6J | 6 | 190–220 HP | Trucks, buses, construction | 105 | In stock |
| YC6G | 6 | 240–280 HP | Heavy trucks, large buses | 112 | In stock |
| YC6L | 6 | 260–330 HP | Heavy trucks, buses, generators | 113 | Deep stock |
| YC6M | 6 | 300–380 HP | Heavy trucks, mining, marine | 120 | Deep stock |
| YC6K | 6 | 380–480 HP | Premium heavy trucks, high-end buses | 129 | In stock |
The YC6L, YC6M, YC6A, and YC4E series hold the largest overseas installed base. Parts for these four models move the fastest — and RJT PARTS keeps them on the shelf year-round.
Rotating Assembly: Pistons, Liners, Rings & Pins (Overhaul Kits)
The “four-match kit” (piston + ring + liner + pin) sits at the center of every engine overhaul. Overseas workshops buy these kits more often than any other component group. RJT PARTS supplies complete overhaul kits as well as individual components.
YC6L Series
- Piston: L3000-1004015A (aluminum alloy, 113 mm bore)
- Cylinder liner (YC6LK natural gas): LK100-1002106B
- Overhaul kit: L-prefix + 9000200 suffix (varies by sub-model)
YC6M Series
- Overhaul kit (350 HP class): M3000-9000200
- Cylinder block: M3400-1002114D
- Piston: M-prefix + 1004xxx, 120 mm bore
YC6A Series
- Cylinder liner: A30-1002064 (fits 6108 platform)
- Overhaul kit: A30-9000200 series
YC6G Series
- Cylinder liner (YC6G270): G0100-1002026BV3 (or short code 1002026BV3)
- Overhaul kit (YC6G260N natural gas): G3R00-9000200
YC4E Series
- Cylinder block: E1202-1002010/03
- Overhaul kit: E-prefix + 9000200 series
RJT PARTS buying tip: Always confirm the full nameplate model (e.g., YC6L330-42) before ordering overhaul kits. Pistons within the same series differ by emission standard. They do not interchange. Send us your nameplate photo and we match the exact kit for you.
Valve Train: Valves, Guides & Seats
Valves wear fast. Natural gas engines burn through valves even quicker than diesel units. RJT PARTS supplies intake valves, exhaust valves, guides, seats, and collets for every Yuchai platform.
- Intake valve: model prefix + 1007011 series
- Exhaust valve: model prefix + 1007012 series
- Valve collet/keeper: 150-1007021E (cross-model wear part, marked EWP)
- Valve guide: model prefix + 1007021 series
- Valve seat insert: model prefix + 1007031 / 1007032 series
Yuchai catalogs mark certain parts with EWP (Easy Wear Part). RJT PARTS stocks these first because our customers reorder them constantly.
Fuel System: Injectors & Injection Pumps
Fuel system parts carry high ticket prices and steady demand. Most Yuchai common-rail injectors come from Bosch. RJT PARTS sources both genuine Bosch units and quality-tested aftermarket replacements, so you choose the price point that fits your market.
Injectors
- Common-rail injector (multi-model): A50000-1112100 A38, Bosch cross-reference 0445110889
- YC6K injector: K6000-1112100A-A38
- YC6K injector gasket: K6100-1112001 (wear part, 6 pcs per engine)
- Nozzle: LA600-1205580A
- Bosch valve component (fits YC4E / YC6M / YC6L / YC6J): F00RJ02806
Injection Pumps
- YC6J injection pump accessory assembly: B7B06-1130000/02
- Mechanical pump models: model prefix + 1111xxx series
RJT PARTS buying tip: When you order common-rail injectors, add valve components and nozzles to the same order. Replace them together during repair and cut your comeback rate. Record both Yuchai and Bosch numbers — they let you compare prices across channels. We cross-reference both systems on every quote.
Cooling System: Water Pumps & Hoses
Water pump leaks rank among the top Yuchai field failures. Hot climates accelerate seal wear. RJT PARTS keeps water pumps, fan shafts, thermostats, and hoses ready for immediate dispatch.
- Water pump (YC6J construction): 630-1307010C
- Water pump (multi-model): A5DL4-1307100
- Fan shaft assembly: A5DL4-1308300B
- Thermostat: model prefix + 1306xxx series
- Radiator hose: model prefix + 1303xxx series
Air Intake & Exhaust: Turbochargers
Turbochargers are high-value aftermarket items. Yuchai pairs most engines with Holset or Jiangyan turbo units. RJT PARTS supplies both genuine turbo assemblies and affordable cartridge replacements.
- YC6K turbocharger assembly: K6501-1118000/01
- YC4F turbocharger: F3400-1118100-383
- Turbocharger (multi-model): A5D00-1118100A-752
- Exhaust manifold: model prefix + 1008xxx series
- Charge air cooler: model prefix + 1119xxx series
Lubrication & Filtration: The Three Filters
Oil filters, fuel filters, and air filters turn over faster than any other category. RJT PARTS ships these by the carton. Stock them by model and buy in bulk for the best margin.
- Fuel pre-filter: A60000-1105300A
- Oil filter: model prefix + 1012xxx series
- Fuel fine filter: model prefix + 1105xxx series
- Air filter: matched to engine power, usually KW or AF series
Electrical System: Starters, Alternators & Sensors
- Starter motor: model prefix + 3708xxx series
- Alternator: model prefix + 3701xxx series
- Sensors (crankshaft position, camshaft position, coolant temp, oil pressure): essential for common-rail engines. RJT PARTS sells them as individual units or as a complete sensor kit.
How to Read a Yuchai Engine Part Number
Learn the naming convention and you can identify a part at a glance. RJT PARTS uses this system every day to verify your orders.
| Prefix | Model | Function Code | System |
|---|---|---|---|
| A | YC6A | 1002 | Block / liner |
| E | YC4E | 1003 | Cylinder head |
| F | YC4F | 1004 | Piston |
| G | YC6G | 1007 | Valve train |
| J | YC6J | 1112 | Injector |
| K | YC6K | 1118 | Turbocharger |
| L | YC6L | 1307 | Water pump |
| M | YC6M | 1105 | Fuel filter |
| D | YC4D | 3701 / 3708 | Alternator / starter |
Example: L3000-1004015A = YC6L series + piston system + sequence 015 + revision A.
Why Buy Yuchai Engine Parts from RJT PARTS
RJT PARTS focuses exclusively on diesel engine replacement parts for the overseas aftermarket. We know Yuchai engines inside and out. Here is what sets us apart:
- Verified OEM cross-references. Every part number gets checked against Yuchai and Bosch catalogs before shipment.
- Two quality tiers. Choose genuine/OEM for premium markets or quality-tested aftermarket for price-sensitive regions. Both come with warranty.
- Deep stock on fast movers. Overhaul kits, injectors, water pumps, three filters, and valves leave our warehouse within 48 hours.
- Flexible MOQ. Order one piece for a repair job or a full container for distribution. We serve both workshops and wholesalers.
- Global shipping. DHL, FedEx, sea freight, and air freight — we pick the most cost-effective route for your order size.
- Technical support. Send us your engine nameplate or old part number, and our team confirms the exact replacement within 24 hours.
Custom Product Attributes for RJT PARTS Listings
When you partner with RJT PARTS, every product listing includes these attributes for clean SEO and easy buyer filtering.
| Attribute | Example Value |
|---|---|
| Supplier | RJT PARTS |
| Brand | Yuchai / OEM / RJT Aftermarket |
| Engine Model | YC6L330-42 |
| Part Name | Piston |
| OEM Number | L3000-1004015A |
| Cross Reference | Bosch 0445110889 (if applicable) |
| Material | Aluminum alloy / Cast iron |
| Bore Size | 113 mm |
| Quantity per Engine | 6 pcs |
| Condition | New |
| Warranty | 12 months |
| MOQ | 1 pc |
| Lead Time | 3–7 days (stock) / 15–30 days (order) |
| Shipping | DHL / FedEx / Sea / Air |
Sourcing Recommendations
- Confirm the full nameplate model first. A code like YC6L330-42 L6200 gives you the exact match. “YC6L” alone is not enough. RJT PARTS asks for the nameplate on every quote to eliminate mistakes.
- Record cross-references. For common-rail parts, log both Yuchai and Bosch numbers. For turbos, log Yuchai and Holset numbers.
- Prioritize wear parts. EWP-marked items, three filters, valves, water pumps, and injectors move the fastest. RJT PARTS keeps these in ready stock.
- Watch emission standards. Euro III, IV, and V versions of the same model use different pistons and injectors. Never mix them.
- Buy overhaul kits in bulk. The 9000200-series kits cost less per piece than individual components. Distributors and repair shops save real money this way. RJT PARTS offers tiered pricing for quantity orders.
FAQ
Q: Do YC6M and YC6L overhaul kits interchange?
A: No. YC6M runs a 120 mm bore. YC6L runs 113 mm. Pistons and liners differ completely. RJT PARTS double-checks bore size on every overhaul kit order.
Q: Does RJT PARTS ship worldwide?
A: Yes. We ship to Southeast Asia, Africa, the Middle East, South America, and beyond. We handle export documentation and choose the best shipping method for your order.
Q: Is a Bosch injector the same as a Yuchai injector?
A: Physically, yes. Bosch builds Yuchai common-rail injectors. The Yuchai number and Bosch number point to the same part. RJT PARTS can source either side depending on your price target.
Q: Do natural gas and diesel engines share parts?
A: Mostly no. Natural gas engines use special pistons, valves, and fuel injectors. Always order the dedicated natural-gas part number. We flag natural gas parts clearly in our quotes.
Q: What does “EWP” mean on the part list?
A: EWP = Easy Wear Part. Yuchai flags these items as high-frequency replacements. RJT PARTS stocks them first because our customers reorder them constantly.
Q: What is the minimum order quantity at RJT PARTS?
A: One piece. We serve individual repair shops as well as large distributors. Volume discounts kick in at 10 pieces, 50 pieces, and full carton quantities.
Get Your Yuchai Parts Quote from RJT PARTS
RJT PARTS supplies genuine and premium aftermarket replacement parts for all major Yuchai overseas models. We keep fast-moving items on the shelf and ship worldwide within 48 hours.
Send us your engine nameplate photo or a list of OEM numbers today. Our team matches every part within 24 hours and replies with a competitive quotation, technical specs, and shipping options.
📧 Email: info@rjtparts.com
💬 WhatsApp: +86 17882454252
🌐 Website:www.rjtparts.com
