Subaru owners in high-density markets — the Northeast, Pacific Northwest, Colorado — are repeat customers. If you do good work on a Lineartronic once, the same customer will bring their next Subaru to you, and they'll refer neighbors. Stocking the right parts for same-week turnaround on the most common failures is part of building that reputation. — Primary pulley position sensor: The most common single-component failure causing limp mode. One on the shelf. At $45–$75 it's cheap enough to stock two. — Secondary pulley position sensor: Less common than the primary but fails on the same mileage timeline. Keep one. — Primary and secondary pressure control solenoids: Stock one set (both solenoids). When you open the valve body for any reason, replace both — the labor to come back in for the second one exceeds the cost of replacing both at once. — Forward clutch solenoid: One unit. Addresses take-off shudder when fluid exchange alone doesn't resolve it.
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Idemitsu CVT Type-N Fluid for Subaru — Case of 12 Quarts
The only correct chain-drive CVT fluid for Lineartronic TR580 and TR690 units — stocking by the case is the only practical approach for shops doing regular Subaru CVT service.
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