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How much is a new transmission for a Lexus IS250?

A brand-new OEM transmission for a Lexus IS250 is not commonly stocked, and when available it comes with a high price tag. The part itself typically runs roughly from $4,000 to $7,000, with installation prices often adding $800 to $1,500, bringing the total to about $5,000 to $8,500 depending on options and regional labor rates.


Cost options for a Lexus IS250 transmission


OEM new transmission (dealer)


New factory units for the IS250 are increasingly scarce due to the age of the model, and some dealers may rely on remanufactured stock. If a brand-new unit is available, it usually includes the transmission assembly and may or may not include ancillary components like the torque converter, depending on the dealer.



  • OEM new transmission (dealer): Part price typically $4,000–$7,000; labor $800–$1,500; total installed around $4,800–$8,500. Availability and lead times vary by market.


Conclusion: This is the most expensive route, but it provides genuine new parts and, where offered, dealer-backed warranty. Availability can be limited by age and inventory.


Remanufactured/OEM rebuilt transmission


Remanufactured (rebuilt) OEM transmissions are the common middle-ground option for IS250 replacements. They’re rebuilt to OEM specifications and often come with a warranty from the rebuilder or installer. Labor costs are typically similar to a new unit, and the price is notably lower than a brand-new part.



  • Remanufactured OEM transmission: Part $2,500–$4,000; labor $800–$1,300; total installed $3,300–$5,300. Warranties commonly 1–3 years depending on the shop and supplier.


Conclusion: Balances cost with reliability; ensure the warranty covers major transmission components and that the unit was rebuilt to OEM standards.


Used transmission (low mileage or salvage)


Used or salvage transmissions offer the lowest price, but they carry higher risk due to uncertain wear and potential unknown history. If you pursue this route, verify mileage, service history, and whether any warranty is included. Installation should be performed by a qualified technician who can assess compatibility and condition.



  • Used transmission: Part $800–$2,000; labor $800–$1,500; total installed $1,600–$3,500. Some sellers offer short-term warranties or return policies.


Conclusion: Potential savings are significant, but the risk of premature failure is higher. Demand proof of reliability and warranty terms before purchase.


Aftermarket or non-OEM equivalents


Some aftermarket suppliers offer transmissions that are compatible with Lexus IS models but are not OEM. Prices can be lower, but compatibility, software calibration, and warranty terms vary. Verify exact model year compatibility and ensure the installer can program the unit to your vehicle.



  • Aftermarket/non-OEM transmission: Part $1,000–$3,500; labor $800–$1,500; total installed $1,800–$5,000. Warranties range from 1–3 years depending on supplier.


Conclusion: A viable option for cost savings if sourced from a reputable supplier; confirm fitment and warranty before buying.


What affects the total cost


Several factors beyond the base price drive the final bill. Regional labor rates, the shop’s expertise with Lexus transmissions, core charges, warranty length, and any needed ancillary parts all influence the total cost.



  • Labor rates by region and technician experience with Lexus transmissions

  • Core charges and the requirement to return the old unit

  • Warranty length and coverage (parts, labor, and any related components)

  • Additional parts or services needed (flywheel/torque converter, seals, sensors, software calibration)

  • Difficulty of removal due to vehicle condition or accessibility


Conclusion: To avoid surprises, request a written quote that itemizes parts, labor, core, and warranty before proceeding.


What to consider before replacing the transmission


Before committing to a replacement, weigh the car’s overall value, the root cause of the transmission issue, and whether repair or a partial rebuild could be more economical. In some cases, addressing fluid issues, valve body problems, or sensor faults can extend life more cheaply than a full replacement.



  • Assess the IS250’s remaining value and projected maintenance costs

  • Get a diagnostic to confirm the problem isn’t a non-transmission issue (fluid, sensors, or electrical faults)

  • Compare multiple quotes and check warranty details

  • Consider long-term costs, maintenance plans, and the impact on resale value


Conclusion: A careful evaluation helps determine whether replacement, repair, or alternative fixes offers the best value.


Summary


For a Lexus IS250, a brand-new OEM transmission is often scarce and represents the top end of the price spectrum, with installed costs typically around $5,000–$8,500 depending on part choice, labor, and regional factors. Remanufactured OEM transmissions provide a more affordable middle option, generally $3,300–$5,300 installed, while used units can be as low as $1,600–$3,500 but carry higher risk. Always obtain multiple quotes, confirm warranty terms, and weigh the car’s value and your long-term plans before proceeding. Regular maintenance and timely diagnostics can help extend transmission life in aging vehicles like the IS250.

How much is a transmission for a 2008 Lexus IS250?


Lexus IS250 Transmission Cost
The cost of a new Lexus IS250 transmission could be over $3,500 depending on the car, however, transmission services such as fluid changes and a transmission fluid flush are considerably fewer expensive, in some cases costing fewer than $150.



Is it worth replacing a transmission?


Whether replacing a transmission is worth it depends on a cost-benefit analysis of the vehicle's age, its total value, the cost of the replacement, and your own plans for the car. If the repair cost is less than 30-40% of the car's current value, or if you plan to keep the vehicle for several more years, replacement may be a good investment. However, if the car is older and has other issues, or if the replacement cost is close to or exceeds the car's worth, it may be better to consider selling the vehicle. 
Factors to consider 
This video explains the factors to consider when deciding whether to replace your car's transmission: 42sNexologyYouTube · Sep 4, 2025

  • Vehicle's value: Compare the cost of replacement to the car's current market value. If the repair is more than 30-40% of the car's worth, it may not be a good financial decision. 
  • Vehicle's condition: If the rest of the car is in good condition with no major issues, a transmission replacement can be a worthwhile investment. However, if the car has many other problems, it may be better to cut your losses. 
  • Your plans for the car: If you plan to keep the vehicle for several more years, replacing the transmission is more likely to be worth the cost. If you only plan to keep it for a year or two, it may not be. 
  • Cost of the replacement: Costs can range from $1,500 to over $8,000, depending on the vehicle and the type of transmission (new, rebuilt, or used). Be sure to factor in labor costs as well. 
  • Reliability of the model: Some car models have a history of transmission problems, which may make replacement less desirable. 

Options for replacement
  • New transmission: This is often the most expensive option, but it comes with a new warranty. 
  • Remanufactured transmission: A remanufactured unit has been rebuilt to "as-new" condition and often comes with a good warranty, making it a solid choice. 
  • Used transmission: This is the cheapest option but comes with the highest risk, as you don't know its history. It is generally not recommended unless you can test it first. 



How much is a transmission for a 2015 Lexus IS250?


2015 Lexus IS250 Transmission Cost
The cost of a new 2015 Lexus IS250 transmission could be over $3,500 depending on the vehicle, however, transmission services such as fluid changes and a transmission fluid flush are considerably less expensive, in some cases costing less than $150.



What is the life expectancy of a Lexus IS250?


A Lexus IS250 can last for 200,000 to over 300,000 miles with proper and consistent maintenance. Its longevity depends heavily on regular oil changes, using quality parts, and addressing issues like carbon buildup, as highlighted by the brand's reputation for reliability. 
Factors that determine longevity

  • Consistent maintenance: Sticking to a regular maintenance schedule, including oil changes, is the most crucial factor for reaching high mileage. 
  • Quality parts: Using genuine Lexus or OEM parts for repairs can help maintain the vehicle's original reliability. 
  • Addressing specific engine issues: The IS250's direct-injection engine is prone to carbon buildup, which can affect performance over time. Regular cleaning and maintenance are essential to prevent this. 
  • Driving and environmental conditions: Harsh driving conditions or environments can impact a vehicle's lifespan. A history of fewer accidents and damage also contributes to a longer life. 

What owners can expect
  • Many owners report their IS250s exceeding 200,000 miles with proper care. 
  • Reaching 300,000 miles or more is achievable with dedicated maintenance and attention to potential issues. 
  • At around 150,000 miles, owners should be prepared for potential replacements of parts like the water pump and timing chain, which can be a significant part of the vehicle's long-term care plan. 


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.