
Part Name: CORE AS-OIL COOLER 4W7188
Part Number: 4W7188
Basic Info.
Product Details
- Item Model:4W7188
- Date First Listed:2025/05/30
- Manufacturer:Diron Parts
Product Description
- Part Number: 4W7188
- Part Type:CORE AS-OIL COOLER
- Description: Caterpillar (CAT)



CORE AS-OIL COOLER 4W7382 4W-7382 for Caterpillar
Product Introduction: Core As-Oil Cooler 4W7188 for Caterpillar Equipment
Overview
The Core As-Oil Cooler 4W7188 is a precision-engineered component designed for Caterpillar equipment, specifically used to dissipate heat from engine or transmission oil, maintaining optimal operating temperatures. This oil cooler core is critical for preventing oil breakdown, preserving engine component longevity, and ensuring reliable performance in demanding applications such as dozers, wheel loaders, and articulated trucks. Available as a new aftermarket or genuine OEM part, it provides a cost-effective solution for equipment maintenance.
- Material: Constructed from high-grade aluminum or copper, designed to withstand high temperatures, resist corrosion, and ensure efficient heat transfer. Features robust tubing and fins for maximum cooling capacity.
- Design: Precision-engineered to OEM specifications, featuring a tube-and-fin or plate-and-fin configuration for effective oil cooling. Includes inlet and outlet ports for seamless integration with engine or transmission systems. Direct-fit replacement requiring no modifications.
- Compatibility: Compatible with Caterpillar equipment and engines, including:
- Engines: 3176C, 3196, 3304, 3304B, 3306, 3306B, C-10, C-12, D330C, D333C.
- Dozers: D6C, D6D, D7F.
- Wheel Loaders: 920, 936, 936E, 950B, 950B/950E, 966C, 966D, 966E, 972G.
- Wheel Scrapers: 621, 621B, 621E, 627B, 627E, 627F, 627G, 639D.
- Articulated Trucks: D25C, D25D, D30C, D250B, D250D, D250E, D250E II, D300B, D300E, D350C, D35C.
- Backhoe Loaders: 450E.
- Wheel Skidders: 515, 525, 528B, 530B.
- Dimensions: Specific dimensions are not publicly detailed but conform to OEM standards for listed models. Approximate weight is 28 lbs (12.5 kg), typical for oil cooler cores in heavy equipment.
- Quality Assurance: Manufactured to meet or exceed OEM specifications, with pressure testing to ensure leak-free performance.
Benefits
- Enhanced Durability: Aluminum or copper construction ensures resistance to corrosion and thermal stress, extending service life in harsh environments.
- Reliable Performance: Efficiently cools engine or transmission oil, maintaining viscosity and preventing damage to bearings and other components, critical for the 3306 engine in D6E dozers.
Applications
The Core As-Oil Cooler 4W7188 is designed for use in Caterpillar equipment, specifically suited for:
- Dozers: D6C, D6D, D7F, including the D6E (3306 engine), for earthmoving and grading tasks.
- Wheel Loaders: 936, 950B, 966D, for material handling and loading.
- Articulated Trucks and Scrapers: D250E, 627E, for hauling and construction.
- Industries: Construction, mining, forestry, and agriculture, where Caterpillar equipment operates in high-load conditions.
Technical Specifications
- Part Number: 4W7188 (cross-referenced as 4W-7188, CA4W7188, 4W7190, 4W-7190, 6N9215, 5S6807, 8N4718, 0R3334, 2Y2080, 5Y0951, 9S7755, 3747501).
- Unit of Measure: Each.
- Condition: New aftermarket or OEM.
- Weight: 28 lbs (12.5 kg).
NOTE:To obtain the most accurate and up-to-date information, it is recommended to consult a qualified parts supplier such as DIRON PARTS.
FAQ
Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.
Q3. What is your terms of delivery?
A: FOB
Q4. How about your delivery time?
A: Generally, it will take 20 to 30 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6. 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.
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, no matter where they come from
ABOUT DIRON
- Factory OF DIRON
Diron Parts Group Have Its Own Factory Ensure That We Offer Better Price For Customers. Besides, Diron Corporate With Some Reliable Principal Manufacturers, So Diron Also Supply Customer Other Quality Spare Parts.








- Team OF DIRON
With 18 years of manufacturing and exporting experience, Diron has a team of knowledgeable engineers, inspectors and technical workers, sales staff, after-sales personnel.


- Products OF DIRON
As a distributor, we supply parts covers for :Complete engines, Long block, Short block, Engine spare parts, Electricla products, Hydraulic products, Transmission products, Undercarridge products.Among them, Cylinder head, Cylinder block, Spacer-plate, Bushing & Pin are our best-selling products.







