Genuine YC4S140-48(S56D1) Cylinder Block & Head Assembly Parts
|
Engine Model |
YC4S140-48(S56D1) |
|
Rated Power |
140 HP (103 kW) |
|
Rated Torque |
450 N·m @ 1400-1800 rpm |
|
Emission Standard |
Euro IV / China IV |
|
Application Field |
Heavy-duty trucks, 7-7.5m buses, 3.8-8t light-duty trucks, construction machinery (loaders, excavators) |
|
Core Advantages |
Low fuel consumption (≤198g/kW·h), strong reliability, -30℃ cold start capability |
Product Description
Power, Precision, Partnership: The Genuine Yuchai Ecosystem
Choose the authentic power legacy of Yuchai. Our 100% genuine OEM parts for the YC4S140-48 engine are designed to restore its original horsepower, torque, and efficiency, delivering the true Yuchai DNA.
Uncompromised Quality, Forged on the Original Line
Every part is produced to identical specifications under the stringent Yuchai Quality Control System (QCS), guaranteeing perfect fitment, durability, and seamless integration to preserve engine value.
Your One-Stop Solution for Assured Performance
We provide a comprehensive, one-stop supply—from components to complete kits, backed by technical support. This
Detail Parts List
1、 S5500-1001000/02 Engine Suspension Assembly

|
NO. |
Part No. |
Description |
Qty. |
Remark |
|
1 |
S5500-1001001A |
Front left support leg |
1 |
|
|
2 |
QT1841225TF2 |
Bolt M12×25 |
8 |
|
|
3 |
S5500-1001002A |
Front right support leg |
1 |
|
|
4 |
S5500-1001005 |
After left support leg |
1 |
|
|
5 |
S5500-1001004 |
After right support leg |
1 |
|
|
6 |
QT1841230TF2 |
Bolt M12×30 |
6 |
|
2、 S5500-1002000/01 Cylinder Block Assembly

|
NO. |
Part No. |
Description |
Qty |
Remark |
|
1 |
S2000-1002121A |
Locating bush |
2 |
|
|
2 |
YC7-38 |
Bowl-shaped tabular plug 38 |
1 |
|
|
3 |
S2000-1002106 |
Cylinder liner |
4 |
|
|
4 |
YC7-42 |
Bowl-shaped tabular plug 42 |
4 |
|
|
5 |
YC7-18 |
Bowl-shaped tabular plug 18 |
4 |
|
|
6 |
Q1841060 |
Bolt M10X60 |
1 |
|
|
7 |
SA000-1002201 |
Gear chamber |
1 |
|
|
8 |
Q1841025 |
Bolt M10X25 |
2 |
|
|
9 |
Q1841240TF2 |
Bolt M12X40 |
1 |
|
|
10 |
S6000-1002904 |
Air compressor idler gear shaft |
1 |
|
|
11 |
S6000-1002940 |
Air compressor idler gear components |
1 |
|
|
12 |
S6000-1002907 |
wearing plate |
1 |
|
|
13 |
Q1841050TF2 |
Bolt M10X50 |
3 |
|
|
14 |
F3000-1002162A |
Lozenge pin |
1 |
|
|
15 |
YC24-1030 |
Straight pin 10X30 |
1 |
|
|
16 |
YC24-B1218 |
Straight pin 12X18 |
1 |
|
|
17 |
F3100-1002127 |
Flat pin |
1 |
|
|
18 |
Q1841025 |
Bolt M10X25 |
6 |
|
|
19 |
S2000-1002116 |
Thrust main bearing cover |
1 |
|
|
20 |
YC24-B0408 |
Straight pin 4X8 |
2 |
|
|
21 |
S2000-1002161 |
Cylinder block reinforcing plate |
1 |
|
|
22 |
S2000-1002701 |
Oil hollow bolt |
4 |
|
|
23 |
S2000-1002740 |
Nozzle parts |
4 |
|
|
24 |
S2000-1002118 |
Main bearing bolt |
10 |
|
|
25 |
S2000-1002117 |
Main bearing cap |
4 |
|
|
26 |
B8860-1002104 |
Aluminum block |
1 |
|
|
27 |
SA000-1002114B |
Cylinder block |
1 |
|
|
|
SA000-1002170B |
Cylinder block subassembly |
1 |
|
|
28 |
S2000-1002120 |
Camshaft bushing |
5 |
Easy wear part |
|
29 |
Q1841080TF2 |
Bolt M10X80 |
1 |
|
|
30 |
S2000-1002450 |
Tension pulley |
1 |
|
|
31 |
Q618B03 |
Plug NPT 3/8 |
1 |
|
|
32 |
YC7-28 |
Bowl-shaped tabular plug 28 |
3 |
|
|
33 |
YC7-42 |
Bowl-shaped tabular plug 42 |
|
|
|
34 |
S2000-1002460 |
Multi-wedge idle gear subassembly |
|
|
3、S5500- S5500---1003000/03 Cylinder head assembly

|
NO. |
Part No. |
Description |
Qty |
Remark |
|
1 |
S2000-1003001-386 |
Cylinder head gasket |
1 |
When disassemble, cylinder gasket can't be used again |
|
2 |
S2000-1003111A |
Intake valve |
8 |
|
|
3 |
S2000-1003103A |
Exhaust valve |
8 |
|
|
4 |
S2000-1003173A |
Intake valve seat ring |
8 |
|
|
5 |
S2000-1003174 |
Exhaust valve seat ring |
8 |
|
|
6 |
YC7-22 |
Bowl-type spacer22 |
18 |
|
|
7 |
YC7-10 |
Bowl-type spacer10 |
2 |
|
|
8 |
S2000-1003171B |
Cylinder head |
1 |
|
|
|
S2000-1003170B |
Cylinder head |
1 |
|
|
9 |
Q1841025TF2 |
Bolt M10X25 |
2 |
|
|
10 |
S5500-1003122 |
Front lifter |
1 |
|
|
11 |
Q1840815TF2 |
Bolt M8X15 |
1 |
|
|
12 |
S2000-1003178 |
Awl-plug union joint |
1 |
|
|
13 |
Q1840812TF2 |
Bolt M8X12 |
1 |
|
|
14 |
Q61904 |
Plug screw NPT 1/2 |
1 |
|
|
15 |
S5500-1207114 |
SupportⅠ |
1 |
|
|
16 |
Q1840512 |
Bolt M5X12 |
8 |
|
|
17 |
FGE00-1003270 |
Cover plate assembly |
1 |
|
|
18 |
SA000-1003201 |
Cylinder head cover spacer |
1 |
EWP |
|
19 |
SA000-1003205A |
Cylinder head cover |
1 |
|
|
20 |
SA000-1003247 |
Cylinder head cover bolt |
11 |
|
|
21 |
150-1003041F |
Oil filler cover |
1 |
|
|
22 |
150-1003043C |
Seal ring |
1 |
EWP |
|
23 |
S2000-1003202C |
Seal ring |
4 |
EWP |
|
24 |
S2000-1003002 |
Cylinder head long bolt |
18 |
|
|
25 |
S2000-1003109 |
Valve stem locks |
32 |
EWP |
|
26 |
S2000-1003116 |
Valve spring upper seat |
16 |
|
|
27 |
S2000-1003106 |
Valve spring |
16 |
|
|
28 |
S5500-1207115A |
Support Ⅱ |
1 |
|
|
29 |
YC208-B02360F |
O-ring 2.65x23.6 |
4 |
EWP |
|
30 |
S2000-1003176A |
Injector bordered jacket |
4 |
|
|
31 |
Q1841020TF2 |
Bolt M10X20 |
2 |
|
|
32 |
S2000-1003123 |
Rear lifter |
1 |
|
|
33 |
S2000-1003105 |
valve stem seal |
16 |
EWP |
|
34 |
Q61903 |
Plug screw NPT3/8 |
2 |
|
4、S2000-1004000/06 Piston & con-rod assembly

|
No. |
Part No. |
Description |
Qty. |
Remart |
|
1 |
S2000-1004002 |
Compression ring |
4 |
EWP |
|
2 |
S2000-1004003 |
Compression ring |
4 |
EWP |
|
3 |
S2000-1004100 |
Oil ring assembly |
4 |
EWP |
|
|
S2000-1004002* |
Piston ring subassembly |
1 |
|
|
4 |
Q43040 |
Block ring 40 |
8 |
|
|
5 |
S2000-1004004 |
Piston pin |
4 |
|
|
6 |
S2000-1004001 |
Piston |
4 |
|
|
7 |
S2000-1004202 |
Con-rod sleeve |
4 |
EWP |
|
8 |
S2000-1004201A |
Con-rod body |
4 |
|
|
9 |
S2000-1004006 |
Con-rod up tile |
4 |
EWP |
|
10 |
S2000-1004007 |
Con-rod down tile |
4 |
EWP |
|
11 |
S2000-1004204A |
Con-rod bolt |
8 |
|
5、S2000-1005000/03 Crankshaft damper assembly

|
NO. |
Part No. |
Description |
Qty |
Remark |
|
1 |
Q1841030TF2 |
Belt pulley clamping bolt M10 ×30 |
6 |
|
|
2 |
S2000-1005140B |
Rubber damper |
1 |
|
|
3 |
YC24-B0824 |
Stud pin 8×20 |
1 |
|
|
4 |
S2000-1005001 |
Crankshaft |
1 |
|
|
5 |
S2000-1005005 |
Main bearing shell (upper) |
5 |
EWP |
|
6 |
S2000-1005007 |
Crankshaft thrust shaft bushing |
4 |
|
|
7 |
S2000-1005002 |
Crankshaft timing gear |
1 |
|
|
8 |
S2000-1005039A |
Crankshaft gear side flange |
1 |
|
|
9 |
S2000-1005006 |
Main bearing shell (lower) |
5 |
EWP |
Product Advantages
●100% Yuchai OEM Genuine Parts:Produced on Yuchai’s original production line, 1:1 matching the engine.
●Perfect Fitment:Precision-machined to meet YC4S140-48(S56D1) technical specifications, no modification needed.
●Durable&Reliable:High-quality materials, passed 300,000+ working hours test.
●Global Warranty:12-month warranty, free replacement for quality issues.
●One-Stop Supply:Covers all parts of the engine, simplifying procurement.
Payment & Shipping Terms
● MOQ: 1 piece
● Packaging: Customizable wooden crate/carton
● Delivery: 3-20 working days (express: DHL/FedEx; sea freight for bulk)
● Payment: L/C, T/T, Western Union; tracking number provided in 24hrs
● After-Sales Service:24-hour technical support, global service network

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