Mitsubishi 4M40 4M50 Engine Overhaul Parts for CAT 305 306 307
Mitsubishi 4M40 and 4M50 engine overhaul parts for CAT mini excavators, including models 305, 306, and 307, as well as other machinery such as backhoes and skidders, are available at Tunway.
These high-quality engine parts will improve your engine’s performance, ensuring that your machine performs excellent after the rebuild.
Product Details
| Part Name | Mitsubishi 4M40 4M50 Engine Overhaul Parts |
| Application Model | CAT 305 306 307 308, and others |
| Brand | Tunway |
| Condition | Brand New |
| Country of Origin | China |
| Package | Box |
| Warranty | 6 Months |
| Type | Diesel engine |
| Weight | 15 Kg |
| MOQ | 1 PC |
| Delivery Lead Time | 2-5 days |
| Payment Method | T/T, Western Union, PayPal, MoneyGram, Alipay |
| Shipping Method | DHL, UPS, FedEx, TNT, EMS, Aramex, Sea Shipping |

Mitsubishi Engine Parts Available at Tunway
| 4D31 | 4D32 | 4D33 | 4D34 | 4D35 | 4D56 | 4DR5 | 4DR7 | 4DQ5 | 4M50 | 4M51 |
| 6D14T | 6D15T | 6D16 | 6D16T | 6D17 | 6D20 | 6D22 | 6D23 | 6D24 | 6D31 | 6D34 |
| 6D57 | 6DR5 | 6DS70 | 6BD10 | 6M60 | 6M61 | 6SB | 8DC8 | 8DC9 | 8DC10 | 8DC11 |
| S4Q2 | SM40 | S4KT | S4E | K4E | S4E2 | L3E | D04F | D06F | S4L | S4E |
| S4Q | S6K | S6S | S6A | S6N | S6KT | S6A | S4S | S3L | S3F | K3E |
| K3D | L3C | L3A | K4E | 6D40 | S6R2 | K4D | K4N | K4M |
Frequently Asked Questions (FAQ):
- 1. What types of excavator parts do you supply?
We supply a wide range of excavator parts, including hydraulic parts, engine parts, swing motors, final drives, electrical parts, undercarriage parts, main control valves, seal kits, and other construction machinery parts.
- 2. What’s the lead time if I order the parts?
If small orders which order several pieces of products, we usually will ship them in 1-3 days. If big quantity orders, it will take some days to prepare and pack the products.
- 3. How long does it take to my address?
The normal air shipping delivery time is 3-5 days for global shopping. It also depends on which country you are in. If for urgent order, please contact our sales team ASAP, we will make fast shipping for you.
- 3. Do you accept sample order?
Yes, sample order is available.
- 4. Do you have a minimum order quantity (MOQ) requirement?
Most of our products have no strict MOQ. It means you can order one piece for most items. This is ideal for small businesses, repair shops, and distributors looking to test our quality before placing bulk orders.
However, for certain or special-order items, MOQ may apply. Please contact us for specific product details.
- 5. How can I pay the order?
We have many safe payment solutions, such as T/T, West Union, Money Gram, PayPal, Alipay.
Warranty Guarantee
Tunway values every customer. The company is keeping on providing the parts of exceptional quality and ensure customer satisfaction. For any products meet quality problem, we offer comprehensive warranty coverage.
If you meet any quality problems and need any after-sales assistance, please contact our sales team that contacted you directly. And please contact us at tunway@twspares.com for further assistance. We will do our best to providing a smooth and satisfactory after-sales experience for our valued customers.





