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This is an OEM replacement cap for the larger coolant tank on your Gen 1 B58. You need to replace it if the cap fails and prevents the car from managing pressure properly, or if coolant begins to leak past the threads on the cap.
Part Number: 17117639020
Click Below to Order
This is an OEM replacement cap for the larger coolant tank on your Gen 1 B58. You need to replace it if the cap fails and prevents the car from managing pressure properly, or if coolant begins to leak past the threads on the cap.
Part Number: 17117639020
Click Below to Order