| 1 |
Is this gasket kit compatible with my Cum mins QST30 engine? |
Yes, this upper gasket kit (Part No. 3804718) is specifically designed and manufactured to be fully compatible with all Cum mins QST30 series diesel engines, including both industrial and marine applications. |
| 2 |
Does this kit fit Komatsu SAA12V140 engines? |
Absolutely. This gasket kit is interchangeable between Cum mins QST30 and Komatsu SAA12V140 series engines, including models SAA12V140E-3, SAA12V140-1, and SA12V140-1 used in Komatsu heavy equipment. |
| 3 |
What is the difference between upper and lower gasket kits? |
The upper gasket kit contains all seals needed for the top portion of the engine (cylinder heads, manifolds, valve covers, etc.). The lower gasket kit covers the bottom end (crankcase, oil pan, main bearings area). For a complete overhaul, both kits are required. |
| 4 |
What is the warranty period for this product? |
We offer a 12-month warranty from the date of installation. Our warranty covers any manufacturing defects or material failures under normal operating conditions. We stand behind the quality of our products. |
| 5 |
How long does shipping take? |
We maintain large inventory in our Guangzhou warehouse. Most orders ship within 24-48 hours. International express delivery (DHL/FedEx/UPS) typically takes 3-7 business days worldwide. Sea freight is available for bulk orders (20-35 days). |
| 6 |
What is the minimum order quantity (MOQ)? |
The minimum order quantity is 1 set. We support both small sample orders and bulk wholesale orders. Volume discounts are available for orders of 10 sets or more. Contact us for wholesale pricing. |
| 7 |
Are these gaskets OEM quality? |
Our gaskets are manufactured to meet or exceed OEM specifications using premium materials and advanced production techniques. While they are aftermarket parts, they offer comparable quality and performance at significantly lower prices. |
| 8 |
What payment methods do you accept? |
We accept T/T (Telegraphic Transfer), Western Union, PayPal, L/C (Letter of Credit for large orders), and major credit cards. 30% deposit is required for custom orders, with balance due before shipment. |
| 9 |
Can you provide custom packaging with our brand logo? |
Yes, we offer OEM/ODM services including custom branded packaging. The MOQ for custom logo packaging is 500 pieces. We can also provide neutral packaging or your own brand packaging as required. |
| 10 |
How do I verify the correct part number for my engine? |
Please provide your engine serial number and equipment model when ordering, and our technical team will confirm compatibility. You can also cross-reference with original part numbers: 3804718, 6215-K1-9900, 6215-K1-9901. |
| 11 |
What certifications do your products have? |
Our manufacturing facilities are ISO9001 certified. All products meet CE and RoHS standards. We also comply with TS16949 automotive quality management system requirements for our gasket production lines. |
| 12 |
Do you offer technical support for installation? |
Yes, we provide comprehensive technical support. Our experienced engineers can offer installation guidance, torque specifications, and troubleshooting assistance. We also recommend professional installation by certified mechanics. |
| 13 |
What is your return policy? |
We accept returns within 30 days of delivery for unused products in original packaging. If the product is defective or incorrect, we will cover return shipping costs and provide a full refund or replacement. |
| 14 |
Can I order a complete overhaul gasket set? |
Yes, we offer both upper and lower gasket kits separately, as well as complete full gasket sets (upper + lower combined). The lower gasket kit part number is 3804938. Contact us for bundle pricing on complete overhaul kits. |
| 15 |
Do you ship to my country? |
We ship worldwide to over 100 countries including the United States, Canada, Australia, United Kingdom, Germany, France, Brazil, South Africa, UAE, Saudi Arabia, and more. Contact us with your location for specific shipping rates. |
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