7421538771 21538771 Radiator Coolant Rubber Hose Engine Cooling Water Pipe Replacement For Heavy Duty Truck Cooling System Spare Part
7421538771 Radiator Coolant Rubber Hose Engine Cooling Water Pipe Replacement For Heavy Duty Truck Cooling System Spare Part
Product Description
This 7421538771 radiator coolant hose is a direct‑fit replacement spare part for heavy‑duty trucks. Constructed from high‑grade rubber compound, it provides excellent resistance against high temperature, working pressure and coolant chemical corrosion. Precision‑molded shape matches original routing and mounting dimensions perfectly. It reliably circulates engine coolant inside the cooling circuit, preventing leakage under harsh heavy‑duty operating conditions and keeps engine working temperature stable.
Key Product Advantages
- Strictly manufactured following OE 7421538771 specifications for direct installation without modification.
- Premium rubber material delivers strong performance against high temperature pressure and coolant aging.
- Precision molded shape fits original pipeline layout to avoid installation stress and twisting.
- Good sealing performance effectively reduces risk of coolant leakage during long‑term heavy‑load operation.
- Each hose undergoes pressure inspection to ensure stable performance and extended service life.
Product Specification Table
| Item | Description |
| Product Name | Radiator Hose |
| Part Number | 7421538771 |
| Application | Conveys engine coolant inside cooling circuit to maintain normal operating temperature for heavy‑duty truck engine. |
| Suitable for | Heavy‑Duty Truck |
| Condition | New |
| Packaging | PP Bag inside, Carton box outside |
Product Picture
FAQs
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Q1 What is the OE reference number of this coolant hose
A1 The OE part number is 7421538771 also referenced as 21538771 for heavy‑duty truck cooling system replacement.Q2 Are hose clamps included in this product
A2 Clamps are not included only the rubber hose is supplied as shown in picture.Q3 Can I mount this hose directly
A3 It is direct‑fit molded hose no cutting is needed if original part number matches.Q4 What failures can this hose resolve
A4 It solves leakage cracking and swelling problems caused by aged original cooling hose.Q5 How do I confirm compatibility with my vehicle
A5 Please confirm your original hose OE number matches 7421538771 or 21538771 before placing order.
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