CHEVROLET 242.GM1S03 Transmission

( Part Type: Transmission ), ( Conditions Options: Transmission Floor Shif ), ( Genuine Oem: Yes ), ( Ipn: 242.gm1s03 ), ( Manufacturer Warranty: 90 Day )

Review CHEVROLET Transmission Shift fits IMPALA 2003

The Chevrolet Impala 2003 Transmission, specifically model number 242.gm1s03, is an Automatic Overdrive (AOD) 4T65-E four-speed transmission. This transmission is designed to provide smooth, efficient power transfer from the engine to the drive wheels of the Impala.

The 4T65-E transmission features a torque converter lock-up clutch that engages at low engine speeds to provide improved fuel economy and reduced engine noise. It also includes a transmission cooler to help maintain optimal operating temperatures. The transmission uses a planetary gear set to provide four forward gears and one reverse gear.

The first gear is a low gear for starting and heavy acceleration, while second and third gears provide a balance of power and fuel efficiency for cruising. The fourth gear is an overdrive gear that reduces engine RPM at highway speeds, further improving fuel economy and reducing engine wear.

The transmission also includes a number of advanced features to improve its durability and longevity. These include a heavy-duty input shaft and a reinforced torque converter housing. The transmission also uses synchronizers in all forward gears to help ensure smooth, precise shifts.

The 242.gm1s03 transmission is designed to work with the 3.425 liter V6 engine found in the 2003 Impala. It is a robust and reliable transmission that has been proven to provide excellent performance and longevity in the Impala.

In summary, the Chevrolet Impala 2003 Transmission 242.gm1s03 is a high-performance, fuel-efficient, and durable automatic transmission designed specifically for the Impala. It provides smooth, precise shifts and helps to improve the overall driving experience of this popular sedan.

The Chevrolet Impala 2003 with the 2.2L 4-cylinder engine and the GM1S03 4-speed automatic transmission (R4A) is an option for those seeking a reliable daily driver. Let's examine the potential pros and cons of purchasing this specific transmission for your Impala:

1. Cost-effective: The GM1S03 transmission is often less expensive to purchase and repair compared to other transmissions, making it an attractive option for those on a budget.

2. Familiarity: This transmission is quite common in older Chevrolet models, ensuring that there is an abundance of information, resources, and aftermarket parts available.

3. Durability: The 4-speed automatic transmission is known for its robust design and longevity, especially when compared to newer, more complex transmissions.

4. Simplicity: The GM1S03 transmission is relatively straightforward, which can make diagnosis and repair easier for those who prefer a hands-on approach.

1. Limited gearing: With only four forward gears, the transmission may not provide the same level of smoothness and fuel efficiency as newer transmissions with more gears.

2. Performance: The GM1S03 transmission may not provide the same level of acceleration and power as other transmissions, which could be a consideration for those who enjoy a more spirited driving experience.

3. Noise: Some owners have reported that the transmission can be noisy, particularly during shifts. This can be a source of annoyance for some drivers.

4. Age: As the transmission is older, it may require more frequent repairs and maintenance compared to newer transmissions.

In conclusion, purchasing a Chevrolet Impala 2003 with the GM1S03 4-speed automatic transmission can be a viable option for those who prioritize affordability, simplicity, and durability. However, it may not offer the same level of performance, smoothness, or fuel efficiency as newer transmissions. Ultimately, the decision to purchase this transmission depends on your personal preferences, driving habits, and budget. If you value a reliable, cost-effective daily driver, the GM1S03 transmission could be a suitable choice. However, if you prioritize performance or the latest technology, you may want to consider other options.

If you are considering purchasing a Chevrolet Impala 2003 with the GM1S03 4-speed automatic transmission, it is essential to thoroughly inspect the vehicle and the transmission before making a decision. Look for signs of wear, such as leaks, strange noises, or rough shifts. Additionally, consider the cost of repairs and maintenance, as well as the availability of aftermarket parts. If the vehicle and transmission appear to be in good condition and meet your budget and driving requirements, it could be a worthwhile investment. However, if you have concerns about the transmission's performance or longevity, you may want to consider other options or seek the advice of a trusted mechanic.

Details:

Donor Vehicle. Rear View Mirror Without Automatic Dimming Fits 09-20 TUCSON 1772577. For more parts from this vehicle. It is ready to ship and comes with a 90 day warranty.

Year: 2003, model: IMPALA, Stock #: W07351, Mileage: 167000. This part will only fit. See below for fitment information and any notes pertaining to this specific part. Notes: 2003 IMPALA, TRANSMISSION FLOOR SHIF.

part #: 242.gm1s03 prices

• $492.90-$540.60

specifications geashif:

• for models: Impala
• for makes: Chevrolet
• for years: 2003
• part type: Transmission
• conditions options: Transmission Floor Shif
• genuine oem: Yes
• ipn: 242.gm1s03
• manufacturer warranty: 90 Day

general geashif:

• condition: Used
• Car Truck Parts Accessories > Transmission Drivetrain > Shifters, Cables Linkages

shipping geashif:

• cost: $0.00
• service: UPS Ground
• class: Standard
• type: Fixed
• carrier: UPS
• transit: 3-7 Days

returns geashif:

• time: 60 Days
• paid by: Seller
• policy: Returns Accepted

seller geashif:

• # reviews: 14180
• rating: 98.7%
• city: Toledo, Ohio

payments geashif:

• other
• credit card: Discover
• wallet: Apple-pay

offer geashif:

• sold: 0
• started: November 21, 2025
• availability: In Stock
• options: Ship-to-home
• quantity: 1

Chevrolet 2185826 Is Similar To:

• 00001 Used 1964 Chevrolet Impala (35.2% similar) I will pack well. This is an original part with neutral safety switch chevrolet impala ss floor shiftier. I don't know any history...(January 16th, 2018)
• 10354701 General Motors Chevrolet Corvette Oem Manual Speed Gear Shift Knob (29.9% similar) Good used condition manual 6 speed shift knob. Came off a 2013 grand sport corvette w 24K miles...(December 20th, 2018)
• 12474401 Chevrolet Transfer Case Shift (45.4% similar) It may have minor scratches and clear coat peeling. This for a used oem transfer case shift motor actuator assembly pulled from 2001 Tahoe with actual miles on it. It will have very minor imperfections but be in better condition than 90 of vehicles on the road. It will have high miles or minor ...(November 11th, 2017)
• 12477639 Ac Delco Shift Cable Kit New Chevy Chevrolet 0021625213941 (23.8% similar) Some manufacturers require that you register your product to activate its warranty. Please for any questions. Each warranty gives you specific rights, and may have other rights which vary from state. Please refer to the manufacturer APOS instructions ensure that you can take advantage of your ...(November 9th, 2018)
• 14048042 Gm Chevrolet Blazer Jimmy Transfer Case Shift Indicator (43.9% similar) 83-90 chevrolet S10 blazer GMC S15 jimmy transfer case 4X4 shift indicator gm great condition model: 89 90...(March 6th, 2019)
• 14105725 Gm Chevrolet Oem Cavalier Shifter Shift (41.1% similar) This part fits vehicles made in the following years...(May 13th, 2018)
• 15754075 Ac Delco Shift Cable New Chevy Chevrolet Astro 0021625189222 (26.6% similar) Some manufacturers require that you register your product to activate its warranty. The manufacturer APOS warranty shall be exclusive remedy for any such product defect or failure. Please for any questions. Each warranty gives you specific rights, and may have other rights which vary from state. ...(November 9th, 2018)
• 15946034 Acdelco Gm Original Equipment Auto Trans Shift Indicator Fits Chevrolet (12.9% similar) 87WARRANTY distance: 12000WARRANTY distance om: mi warranty special: parts only warranty special time: 12WARRANTY time mo width : 32. 62LIFE cycle status code: 4MATERIAL: plastic mount hole quantity: 2NATIONAL popularity code: - long 80: indicator,a trans cont return terminal 7TERMINAL type: pin ...(March 12th, 2018)
• 16144035 Delco Remy Chevrolet Gmc Truck Automatic Transmission Gear Shift Indicator (46.5% similar) Box is shelf worn. T1500,25 35 pickup trucks, Tahoe, suburban. Chevrolet GMC truck nos automatic transmission gear shift indicator. Gm Delco part in dash for column shift may fit other years and model's...(March 29th, 2019)
• 20871903 Oe Brand Chevrolet Equinox Transmission Shift Shifter (49.6% similar) Also you can pickup if live close. Please verify fitment and condition by carefully looking at the pictures taken part numbers provided. The compatibility list is for reference only...(October 14th, 2018)
• 20997063 Chevrolet Malibu Automatic Transmission Shift Control Lever Oem (50.4% similar) Free shipping is within the continental us...(November 5th, 2018)