High-Quality 7S7809 Radiator Cap for Caterpillar D250E, D250E II, D300E, D300E II, D350E, 836
Looking for a reliable and durable radiator cap for your heavy-duty Caterpillar machinery? The 7S7809 Radiator Cap is the perfect replacement part, engineered to meet or exceed OEM specifications. This cap is specifically designed to fit a range of Caterpillar models, including the D250E, D250E II, D300E, D300E II, D350E, and 836. Ensure your equipment operates at peak performance with this essential component.

Product Advantages
Perfect Fit: Engineered specifically for the listed Caterpillar models, ensuring seamless installation and optimal performance.
Durable Construction: Made from high-quality materials to withstand the demanding conditions of heavy equipment operation.
Reliable Seal: Provides a tight and secure seal to maintain proper cooling system pressure and prevent leaks.
Enhanced Engine Protection: Helps regulate coolant temperature, contributing to the overall health and longevity of your engine.
Product Uses and Applicable Models
The 7S7809 Radiator Cap plays a crucial role in the cooling system of your Caterpillar machinery. It maintains the correct pressure within the radiator, which raises the boiling point of the coolant, preventing overheating. This is vital for the efficient and safe operation of your equipment.
This radiator cap is compatible with the following Caterpillar models:
Caterpillar D250E and D250E II Articulated Dump Trucks: These robust trucks are used in a variety of heavy construction and mining applications for transporting large volumes of materials like rock, soil, and aggregate.
Caterpillar D300E and D300E II Articulated Dump Trucks: Similar to the D250E series, these larger capacity trucks are deployed in demanding environments for efficient material hauling in construction, quarrying, and mining operations.
Caterpillar D350E Articulated Dump Truck: This high-capacity articulated truck is designed for maximum productivity in large-scale earthmoving and mining projects, offering excellent power and durability.
Caterpillar 836 Landfill Compactor: This powerful machine is specifically built for compacting waste in landfill sites, ensuring efficient use of space and helping to protect the environment.
About Guangxi Huayang Engineering Machinery Equipment Co., Ltd.
Guangxi Huayang Engineering Machinery Equipment Co., Ltd. is a leading supplier of high-quality aftermarket parts for construction machinery, specializing in brands like Komatsu and Caterpillar. Our main product lines include undercarriage parts (such as track rollers, carrier rollers, sprockets, idlers, and track shoes), hydraulic system components (hydraulic pumps, hydraulic motors, control valves, and hydraulic cylinders like bucket cylinders and boom cylinders), transmission and power components (transmissions, gear parts, and engine assemblies including Cummins engine parts), and various wear parts (bucket teeth, track chains, pins and bushings, and high-strength bolts). We are committed to providing our customers with reliable parts that ensure the optimal performance and longevity of their valuable equipment.
Frequently Asked Questions
Q: How often should I replace my radiator cap?A: It's generally recommended to replace your radiator cap every two years or as part of your regular cooling system maintenance. A faulty cap can lead to overheating and other engine issues.
Q: What are the signs of a bad radiator cap?A: Common signs include coolant leaks around the cap, the engine overheating, or a noticeable drop in coolant level.
Q: Can I drive my machine with a missing radiator cap?A: No, operating your machine without a radiator cap can lead to serious overheating and potential engine damage. It's crucial to have a properly functioning cap in place.
Troubleshooting and Maintenance Tips
Troubleshooting Overheating:If your machine is overheating, check the radiator cap for any signs of damage or wear. Ensure it's sealing properly. Also, inspect the coolant level and look for any leaks in the cooling system.
Radiator Cap Maintenance:Regularly inspect your radiator cap for any cracks, damage to the rubber seal, or corrosion. Clean any debris from around the cap and the radiator neck to ensure a proper seal. Replace the cap if you notice any signs of wear or damage.
Coolant System Care:Maintain the correct coolant level and use the recommended type of coolant for your Caterpillar machine. Regularly flush and replace the coolant according to the manufacturer's recommendations to prevent corrosion and buildup that can affect cooling system performance.
Construction Machinery Parts Glossary (Komatsu & Caterpillar)
Komatsu PC200-8 Swing Motor: 旋回马达 (Xuánhuí Mǎdá) - Мотор поворота (Motor povorota) - Located in the upper structure, responsible for rotating the excavator's cab and boom.
Caterpillar CAT 320D Hydraulic Pump: 液压泵 (Yèyā Bèng) - Гидравлический насос (Gidravlicheskiy nasos) - Situated in the engine compartment, it provides hydraulic power for all machine functions.
Komatsu D65EX-16 Bulldozer Ripper Tooth: 松土器齿 (Sōngtǔ Qì Chǐ) - Зуб рыхлителя (Zub rykhlitelya) - Mounted on the rear of the bulldozer, used for breaking up hard ground.
Caterpillar CAT 966M Wheel Loader Bucket Cylinder: 铲斗油缸 (Chǎndǒu Yóugāng) - Цилиндр ковша (Tsilindr kovsha) - Attached to the loader arms and bucket, controlling the tilting and dumping of material.
Komatsu PC300-7 Travel Motor: 行走马达 (Xíngzǒu Mǎdá) - Ходовой мотор (Khodovoy motor) - Located in the undercarriage, drives the tracks for machine movement.
Caterpillar CAT 740B Ejector Cylinder: 顶料油缸 (Dǐngliào Yóugāng) - Цилиндр выталкивателя (Tsilindr vytalkivatelya) - Found on ejector-type dump trucks, used to push material out of the body.
Komatsu WA470-6 Transmission Filter: 变速箱滤芯 (Biànsùxiāng Lǜxīn) - Фильтр коробки передач (Fil'tr korobki peredach) - Located within the transmission system, filters the hydraulic fluid.
Caterpillar CAT 140K Grader Blade Cutting Edge: 刮板刀片 (Guābǎn Dāopiàn) - Режущая кромка отвала (Rezhushchaya kromka otvala) - Bolted to the grader blade, used for leveling and shaping surfaces.
Komatsu PC450-8 Idler Assembly: 引导轮总成 (Yǐndǎo Lún Zǒngchéng) - Натяжное колесо в сборе (Natyazhnoye koleso v sbore) - Part of the undercarriage, helps guide and tension the track.
Caterpillar CAT 336GC Track Roller: 支重轮 (Zhīzhòng Lún) - Опорный каток ( опорный каток) - Located on the undercarriage frame, supports the weight of the machine and distributes it to the tracks.