O rings are essential to many precision-designed systems due to their remarkable features. They are one of the most affordable and dependable ways to create a robust seal because of their inherent tendency to revert to their original shape when the cross-section is under pressure. O rings can be well-produced from various materials, another factor in their widespread use. Elastomers, an elastic polymer, are used to make the bulk of o rings. Still, there is a wide selection of these elastomers, each with unique strengths, weaknesses, and tolerances. The type of material depends on the use of the o ring. Key Features: This replacement O-ring is the best approach to fix and stop leaks in your pump. It also lessens the required torque and wears on other vital components. Specifications: SKU: 949659 Weight: 0.02 LBS Diagram Reference Number: 13 Unit Of Measure: EA Alternate Products SKU: "18-7190-9", "949659" Manufacturer Part Number (MPN): 949659 Volvo Penta Exploded view / schematic Repair Kit SN2013884626-