How much is a new transmission on a Toyota Sienna?
A brand-new transmission installed in a Toyota Sienna typically falls in the $4,000 to $9,000 range, with hybrids generally costing more than conventional automatics due to the eCVT system and related electronics. Actual prices depend on model year, whether the vehicle uses a standard automatic or a hybrid transaxle, and local labor rates.
In this article, we break down why the price varies, what you’re paying for, and how to compare quotes from dealerships and independent shops. We also cover options such as remanufactured units, used transmissions, and repair-versus-replacement considerations.
What powers the price variation
Several factors drive the total cost when replacing a Sienna transmission, including the type of transmission, the choice between new, remanufactured, or used units, regional labor rates, and whether extras such as software calibration or cooling components are required.
- Hybrid Sienna (2021–present): Replacement transaxle/eCVT parts commonly run about $4,000–$8,000, with installed totals often in the $6,000–$12,000 range depending on labor costs and location.
- Non-hybrid Sienna (older generations with conventional automatic): New automatic transmission parts typically cost around $3,000–$5,500; installed totals generally run $4,500–$7,500.
Prices vary by dealer vs. independent shop, and some quotes are higher for newer models or for the hybrid eCVT due to specialized tools and expertise. Remanufactured units may offer a lower upfront price but come with different warranty terms.
Cost considerations and common options
Beyond the sticker price, buyers should weigh alternatives and what they get for their money, as these choices affect total cost and coverage.
- Remanufactured/rebuilt transmissions: Often cheaper than a brand-new unit, with typically shorter warranty periods.
- Used or salvage transmissions: Lower upfront cost but higher risk and limited or no warranty.
- New OEM transmission: Highest initial cost, but maximum warranty and guaranteed compatibility with the vehicle’s systems.
- Labor and ancillary parts: Fluids, filters, torque converters, cooling lines, and potential software updates can add $100–$1,000 or more to the bill.
- Warranty coverage: Some shops offer extended warranties on parts and labor; check what is covered and for how long.
For hybrids, expect some additional diagnostics or software calibration to ensure the eCVT integrates correctly with the hybrid battery system and control modules.
Questions to ask a shop when replacing a Sienna transmission
To avoid surprises and ensure you’re comparing like-for-like quotes, ask these questions before proceeding with service.
- Is the price for a new OEM transaxle, a remanufactured unit, or a used component?
- What is included in the quote (fluids, filters, labor, hardware, software updates)?
- What is the warranty on parts and labor, and what does it cover?
- Will replacement affect the vehicle’s hybrid system, and does it require calibration or software updates?
- Are there any additional costs (diagnostics, road test, core charges, disposal fees) I should anticipate?
Having a detailed, written estimate helps you compare quotes from different shops and make an informed decision.
Bottom line for Toyota Sienna owners
Replacement costs vary widely by model year and propulsion system. Hybrid Siennas tend to be pricier due to the electronic control systems and need for specialized labor. Always obtain multiple quotes, ask about warranties, and consider whether a rebuilt or remanufactured unit offers a better balance of cost and reliability for your situation.
Summary: Replacing a Toyota Sienna’s transmission is a significant expense with broad price ranges. The hybrid models cost more, but shopping around, considering remanufactured options, and verifying warranty terms can help you manage and compare costs effectively.
