Across
1. Alternator-output units
5. Stock-car tracks
8. Piston portions between rings
9. Recyclable repair-shop liquid (4,3)
10. Gear-changing lever
11. Brake-drum resurfacing machine
12. Body-filler finder
14. Trunk tires
17. Uplifting items for backyard mechanics
19. Item covering airbag (4,3)
22. Extra-cost new-car equipment
23. Engine-control computer, slangily
24. Mr. MacPherson’s suspension invention
25. Raised white ____, tire-sidewall feature

Down
1. Live, dead or portal parts
2. Engine-detonation sound
3. Trip-odometer button
4. Bore equals stroke, a.k.a. ____ engine
5. Period when both intake and exhaust valves are open
6. Windshield pillar (1,4)
7. Repairs electrical connection
12. Rear-view appendages
13. Broken-fastener extraction tool (4,3)
15. Second R in repair-order’s R&R
16. Hand tool with beveled edge
18. Wiper-system component
20. Unpaid assembly-line worker
21. Fender flaws, frequently