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Mr. Perry Wu International Sales Director
Genuine YC4D120-21(D1204) Engine Parts - Thermostat, Water Pump, Fan, Power Output & Steering Pump
|
Engine Model |
YC4D120-21(D1204) |
|
Rated Power |
120 HP (90 kW) @ 2800 rpm |
|
Rated Torque |
420 N·m @ 1600-1900 rpm |
|
Emission Standard |
Euro II / China II |
|
Application Field |
Light-duty/medium-duty trucks, low-tonnage medium trucks, small construction machinery |
|
Core Advantages |
Low fuel consumption (≤205g/kW·h), high reliability (alloy cast cylinder block), easy maintenance (universal parts), turbocharged intercooled power system |
Product Description
Power, Precision, Partnership: The Genuine Yuchai Ecosystem
Choose the authentic power legacy of Yuchai. Our 100% genuine OEM parts for the YC4D120-21(D1204) 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、 D12F1-1306000/07 Thermostat Assembly
|
No. |
Part No. |
Name |
Qty. |
Remark |
|
1 |
Q1200825 |
Stud M8X25 |
2 |
|
|
2 |
Q340B08 |
Nut M8 |
2 |
|
|
3 |
Q40308 |
Washer 8 |
2 |
|
|
4 |
Q40008 |
Washer 8 |
2 |
|
|
5 |
D30-1303011 |
Thermostat seat cover |
1 |
|
|
6 |
A3000-1303012 |
Thermostat cover gasket |
1 |
Easy Wear Part |
|
7 |
530-1306010B |
Waxy thermostat |
1 |
|
|
8 |
630-1303014 D |
Thermostat seat |
1 |
|
|
9 |
Q67645 |
Clamp 45 |
2 |
Easy Wear Part |
|
10 |
D30-1303016A |
Water return hose |
1 |
|
|
11 |
Q1200822 |
Stud M8X22 |
3 |
|
|
12 |
Q40308 |
Washer 8 |
3 |
|
|
13 |
Q340B08 |
Nut M8 |
3 |
|
|
14 |
6105Q-1303013 |
Thermostat seat gasket |
1 |
Easy Wear Part |
|
15 |
Q618B02 |
Screw plug NPT 1/4 |
1 |
2、D1205-1307000/07 Water Pump Assembly
|
No. |
Part No. |
Name |
Qty. |
Remark |
|
1 |
D30-1307042A |
Car Multi-cincture |
1 |
Easy Wear Part |
|
2 |
Q150B0855TF2 |
Bolt M8×55 |
2 |
|
|
3 |
Q40308 |
Lock Washer 8 |
4 |
|
|
4 |
BJ100-1307100-J |
Water Pump Parts |
1 |
Easy Wear Part |
|
5 |
G3220-1307017A |
Warm air water return joint |
1 |
|
|
6 |
531A-1307015 |
Warm air water return joint cover |
1 |
|
|
7 |
D30-1307026A |
Water pump plate and gasket |
1 |
Easy Wear Part |
|
8 |
D1205-1307241 |
Bracket |
1 |
|
|
9 |
E1225-1118029 |
Clip ring |
1 |
|
|
10 |
Q150B0830 |
Bolt M8X30 |
1 |
|
|
11 |
Q40308 |
Washer 8 |
1 |
|
|
12 |
Q40108 |
Washer 8 |
1 |
|
|
13 |
Q340B08 |
Nut M8 |
1 |
|
|
14 |
D1205-1307250 |
Water inlet pipe subassembly |
1 |
|
|
15 |
171-1307016 |
Water inlet hose |
1 |
|
|
16 |
Q67664 |
Loop hoop 64 |
2 |
|
|
17 |
Q150B0850TF2 |
Bolt M8×50 |
2 |
3、D12F8-1308000/02 Fan Assembly
|
No. |
Part No. |
Name |
Qty. |
Remark |
|
1 |
Q1841030TF2 |
Bolt M10×30 |
4 |
|
|
2 |
6105Q-1308010B |
φ 450Fan assembly |
1 |
|
|
3 |
D0200-1308022 |
Belt pulley |
1 |
|
|
4 |
GB/T276-6206-2RS |
Rolling bearing 6206-2RS |
1 |
|
|
5 |
D30-1308023 |
Spacer sleeve(I) |
1 |
|
|
6 |
GB/T276-6207-2RS |
Rolling bearing 6207-2RS |
1 |
|
|
7 |
Q43072 |
Retaining ring 72 |
1 |
|
|
8 |
D30-1308024 |
Spacer sleeve(II) |
1 |
|
|
9 |
Q150B0820 |
Bolt M8×20 |
1 |
|
|
10 |
Q40308 |
Washer 8 |
1 |
|
|
11 |
Q40108 |
Washer 8 |
1 |
|
|
12 |
D30-1308021 |
Retaining plate |
1 |
|
|
13 |
D30-1308025 |
Fan shaft |
1 |
|
|
14 |
Q1841045TF2 |
Bolt M10×45 |
4 |
|
|
15 |
682-1308102 |
Fan |
1 |
4、D1297-1600000/02 Power Output Assembly
|
No. |
Part No. |
Part Name |
Qty. |
Remark |
|
1 |
D0111-1600340G |
Clutch case subassembly |
1 |
|
|
2 |
L3800-1600411 |
Plug |
1 |
|
|
3 |
Q1841445TF2 |
Bolt M14×45 |
2 |
|
|
4 |
B3000-1600021 |
Covering plate |
1 |
|
|
5 |
Q1840612 |
Bolt M6×12 |
4 |
|
|
6 |
330-1005044 |
Flywheel bolt |
7 |
|
|
7 |
D0111-1005360A |
Flywheel& gear ring subassembly |
1 |
|
|
8 |
D32-1600200 |
Clutch driven plate part |
1 |
|
|
9 |
D32-1600750A |
Clutch cover& pressure plate subassembly |
1 |
|
|
10 |
Q5500625 |
Key 6×25 |
1 |
|
|
11 |
E0213-1600043 |
Clutch release fork arm |
1 |
|
|
12 |
373-1600042A |
Clutch release fork |
1 |
|
|
13 |
Q1841035 |
Bolt M10×35 |
1 |
|
|
14 |
Q/YC1821022TF2 |
Bolt M10×22 |
8 |
|
|
15 |
Q40310 |
Washer 10 |
8 |
|
|
16 |
GB/T276-6205-2RS |
Ball bearing |
1 |
|
|
17 |
YC209-100125FL |
Oil seal 100×125 |
1 |
|
|
|
YC209-B100125PL |
Oil seal 100×125 |
1 |
Optional |
|
|
YC209-C100125PL |
Oil seal 100×125 |
1 |
Optional |
|
18 |
Q40108 |
Washer 8 |
4 |
|
|
19 |
Q40308 |
Washer 8 |
4 |
|
|
20 |
Q150B0816 |
Bolt M8×16 |
4 |
|
|
21 |
D32-1600017 |
Clutch case bottom cover |
1 |
|
|
22 |
Q150B14120TF2 |
Bolt M14×120 |
2 |
|
|
23 |
Q40314 |
Washer 14 |
2 |
|
|
24 |
6105Q-1600011 |
Flat pin |
1 |
|
|
25 |
YC24-B1224 |
Straight pin |
1 |
|
|
26 |
Q1841245TF2 |
Bolt M12×45 |
6 |
|
|
27 |
Q5004020 |
Pin 4×20 |
1 |
5、D7018-3407000/02 Steering Pump Assembly
|
No. |
Part No. |
Name |
Qty. |
Remark |
|
1 |
D0710-3407100A |
Steering pump |
1 |
|
|
2 |
Q40110 |
Washer 10 |
2 |
|
|
3 |
Q40310 |
Washer 10 |
2 |
|
|
4 |
Q150B1030 |
Bolt M10×30 |
2 |
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 YC4D120-21(D1204) 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