Supplier: XCM-Parts Name of product: water pump Engine model: 4HK1 4HK1-XYSS01 Related model: 4HK1 4JJ1 6UZ1 6WG1 (XYSS, XKSS, XASS, XZSS etc.) Condition: Genuine new Warranty: 1-3 months Payment: T/T , Western Union , PayPal , Credit Card Delivery: estimated 7 days Sumitomo SH120-5 engine oil pump is the core component of the engine cooling system. It is responsible for driving the coolant circulation, taking away excess heat, and ensuring that the engine works at the optimal temperature (about 85-95c).