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Mr. Perry Wu International Sales Director
Cummins QSL9 Upper Gasket Set 4089758 | Diesel Engine Upper Repair Gasket Kit
The Cummins 4089758 Upper Gasket Set is designed for the upper section overhaul and maintenance of Cummins diesel engines, including QSL9, ISL, ISC, and QSC series applications.
This gasket kit contains sealing components used in the cylinder head and upper engine assembly, helping maintain proper sealing performance during engine rebuilding and repair operations.
Manufactured according to OEM specifications, the gasket set provides stable sealing reliability under high-temperature and high-pressure diesel engine working conditions.
It is widely used in heavy-duty trucks, buses, construction equipment, generators, and industrial diesel engine systems.
This gasket kit contains sealing components used in the cylinder head and upper engine assembly, helping maintain proper sealing performance during engine rebuilding and repair operations.
Manufactured according to OEM specifications, the gasket set provides stable sealing reliability under high-temperature and high-pressure diesel engine working conditions.
It is widely used in heavy-duty trucks, buses, construction equipment, generators, and industrial diesel engine systems.
Applications
● Cummins QSL9 diesel engines
● Cummins ISL / ISC / QSC engines
● Heavy-duty trucks
● Buses and commercial vehicles
● Construction machinery
● Generator sets
● Engine overhaul and maintenance projects
● Cummins ISL / ISC / QSC engines
● Heavy-duty trucks
● Buses and commercial vehicles
● Construction machinery
● Generator sets
● Engine overhaul and maintenance projects
Product Advantages
● Complete Upper Repair Solution
The gasket set includes multiple important sealing components required for upper engine overhaul and cylinder head maintenance, helping simplify the repair process and improve maintenance efficiency.
● Reliable Sealing Performance
Designed to provide stable sealing between cylinder head components, the gasket set helps reduce the risk of coolant leakage, oil leakage, and combustion gas escape during engine operation.
● Excellent Heat and Pressure Resistance
Manufactured from durable gasket and sealing materials, the kit is capable of withstanding high operating temperatures, combustion pressure, and continuous heavy-duty engine working conditions.
● Suitable for Heavy-Duty Diesel Applications
Widely used in Cummins ISC, ISL, QSC, and QSL series diesel engines for trucks, buses, construction machinery, generators, and industrial equipment maintenance projects.
● OEM Standard
Manufactured to meet original equipment specifications for direct replacement.
Technical Specifications
|
Item |
Specification |
|
Item Name |
Upper Gasket Set |
|
Part Number |
4089758 |
|
Application |
Cummins Diesel Engine |
|
Engine Model |
QSL9 / ISL / ISC / QSC series applications |
|
Type |
Upper Engine Gasket Repair Kit |
|
Material |
Composite Gasket Material / Rubber / Metal |
|
Installation Position |
Upper Engine Section |
|
Function |
Cylinder Head & Upper Assembly Sealing |
|
Weight |
Approx. 1.5–1.9 kg |
|
Condition |
New |
|
Quality |
OEM Quality Replacement |
|
Packaging |
Neutral Packing / Export Carton |
|
Warranty |
6 Months |
|
Place of Origin |
China |
Function
The upper gasket set is mainly used to seal the cylinder head and upper engine assembly during diesel engine operation.
It helps maintain proper compression inside the combustion chamber while preventing leakage of coolant, engine oil, and combustion gases.
During engine overhaul and maintenance, replacing worn upper gaskets helps restore engine sealing performance and supports stable engine operation after reassembly.
It helps maintain proper compression inside the combustion chamber while preventing leakage of coolant, engine oil, and combustion gases.
During engine overhaul and maintenance, replacing worn upper gaskets helps restore engine sealing performance and supports stable engine operation after reassembly.
Packaging & Delivery
● Standard export carton or customized packaging
● Delivery time: 3–10 days
● Shipping: Sea / Air / Express
● Payment: T/T, L/C, Western Union
● Delivery time: 3–10 days
● Shipping: Sea / Air / Express
● Payment: T/T, L/C, Western Union
FAQ
Q1: What is your terms of packing?
A: Generally, we pack you goods use factory packing box or neutral boxes.
Q2: What is your terms of payment?
A: By TT. We'll show you the photos of the products and packages before you pay the balance.
Q3: How about your delivery time?
A: Generally, it will take 3 to 10 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q4: How do you make a price offer and how long is its validity?
A: We usually quote within 24 hours by email after we get your inquiry . If you are very urgent to get the price,please call us or tell us in your email so that we will regard your inquiry priority. The price valid with 30 days.
Q5: What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q6: Do you accept third party inspection?
A: Yes, we do.
Q7: Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
Q8: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them.
Q9: How to guarantee your after-sales service?
A: 1. Strict inspection during production;
2. Strictly check the products before shipment to ensure our packaging in good condition;
3. Track and receive feedback from customer regularly.
A: Generally, we pack you goods use factory packing box or neutral boxes.
Q2: What is your terms of payment?
A: By TT. We'll show you the photos of the products and packages before you pay the balance.
Q3: How about your delivery time?
A: Generally, it will take 3 to 10 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q4: How do you make a price offer and how long is its validity?
A: We usually quote within 24 hours by email after we get your inquiry . If you are very urgent to get the price,please call us or tell us in your email so that we will regard your inquiry priority. The price valid with 30 days.
Q5: What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q6: Do you accept third party inspection?
A: Yes, we do.
Q7: Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
Q8: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them.
Q9: How to guarantee your after-sales service?
A: 1. Strict inspection during production;
2. Strictly check the products before shipment to ensure our packaging in good condition;
3. Track and receive feedback from customer regularly.