Transmission Repair Cost Calculator

National 2026 planning ranges: fluid service $100–$290, targeted solenoid or valve-body repairs $150–$800, rebuilds $1,500–$3,500, and full replacement $2,900–$8,000 or more (Rohnert Park Transmission, cross-checked against KBB and RepairPal, July 2026). The symptom matters more than the headline: a slipping automatic in a midsize sedan at a $110/hr shop lands around $128–$1,680 before diagnosis.

A rebuild ($1,500–$3,500) usually wins when the case and core components are reusable, because you pay for a rebuild kit ($250–$600) plus 9–16 hours of labor instead of a whole unit. A remanufactured replacement ($2,000–$4,000 installed) can be the better value when the unit has severe internal damage, a failed prior rebuild, or a vehicle-specific reliability problem such as some CVTs. A brand-new OEM unit ($2,900–$8,000+) is the most expensive route and mostly chosen for late-model, truck, or luxury applications.

Typical rebuilds: manual $1,200–$2,500, conventional automatic $1,500–$3,500 (national planning range; some guides put automatics at $2,000–$4,500), CVT $3,000–$5,000, and dual-clutch $2,000–$5,500. Labor alone runs $1,000–$3,000 because a rebuild takes 12–25+ hours of skilled work. SUVs/trucks ($2,500–$4,500) and performance/European models ($4,000–$6,500+) sit above the sedan range.

Full replacement runs $2,900–$8,000 or more nationally, and RepairPal's September 2026 nationwide estimate averages $6,238–$6,764 including labor (before taxes and fees). A factory-remanufactured unit plus installation is the mid route at $2,000–$4,000. Manual transmissions are the outlier: replacement typically costs only $1,500–$3,000 because the design is simpler and needs no reprogramming.

A CVT uses a belt or chain between two variable-diameter pulleys instead of gears, so it demands factory-level precision. Planning ranges: CVT fluid service $150–$400, valve-body or control repair $500–$2,000+, major internal repair $2,000–$5,000+, remanufactured CVT $3,000–$6,000, and new OEM CVT $5,000–$8,000+. Many shops prefer to replace a CVT rather than rebuild it. Nissan's Jatco CVTs (Altima, Rogue) are the well-known pain point for premature failure.

A typical leak repair — pan gasket, axle or pump seal, or cooler line — runs $200–$500 and takes 1–3 hours. The source of the leak changes the job completely, so a leak check comes first. If the car was driven low on fluid, the inspection must also check whether internal wear has already started, which can push the repair path toward a rebuild.

Nationally, targeted solenoid or valve-body repairs land around $150–$800 when scan data isolates the fault. A single externally mounted solenoid can be as little as $75–$450, while a full solenoid pack runs $250–$600 with 2–4 hours of labor (averaging about $600 all-in). Valve-body jobs skew higher on complex units: the GM 10-speed (Silverado/Sierra) valve body is $1,200–$3,500 per AAA/ALLDATA labor data.

Typically $600–$1,800, with labor the largest variable because the transmission must come out (5–8 hours). Domestic vehicles often land at $700–$1,400 — RepairPal data puts a Honda Accord at $730–$900 — while European imports run $1,500–$2,700+ due to expensive dealer-sourced parts and tight engine bays.

A full rebuild typically keeps the car in the shop 3–5 days (9–16 flat-rate labor hours in our model; some guides cite 12–25+ hours including diagnosis and testing). A replacement is faster — usually 1–2 days — because removal and installation is 7–12 hours and the unit arrives ready to install. Software reprogramming on newer cars ($50–$200) can add time.

The widely used 50% rule: if one repair costs more than half of the car's current market value, consider selling or trading instead of fixing. AAA has published guidance along these lines, and mechanics use it because repair money rarely comes back as resale value. This calculator applies it automatically: enter your car's value and it flags estimates under 40% (repair makes sense), 40–50% (borderline), or over 50% (consider selling). Use an honest KBB or Edmunds private-party value, not a guess.

Yes — quickly. Slipping, delayed shifting, leaks, or shudder can come from fluid condition, seals, solenoids, or sensors, and those are very different (and cheaper) repair paths than a rebuild. Transmission problems addressed within the first week of symptoms cost 60–80% less than ones ignored for a month or more, because driving while it slips cooks the clutches. A scan, road test, and fluid inspection should always come before anyone quotes a rebuild.

Expect $100–$300 for diagnostic tests, which covers scanning the transmission control module (not just clearing a P0700 engine code), a road test, and a fluid inspection. Many independent transmission shops credit the diagnostic fee toward the repair if you proceed, and some offer it free — always ask before approving major work.