2021 Ram 3500 transmission — (AT), 4x2, Chassis Cab, 6 speed, 6.4L (AS66RC), PTO (left side) price snapshot
- Low
- $3,850
- Average
- $5,238
- High
- $6,880
Year & trim-specific price guide
Used 2021 Ram 3500 Transmission — (AT), 4x2, Chassis Cab, 6 speed, 6.4L (AS66RC), PTO (left side) prices
Trim-specific pricing for the (AT), 4x2, Chassis Cab, 6 speed, 6.4L (AS66RC), PTO (left side) variant of the 2021 Ram 3500 transmission, built from 16 real salvage yard listings with condition grade detail.
SKWritten bySaurabh Kumar · Co-Founder & CTO
SK
Saurabh Kumar
Co-Founder & CTO, Part Price Guide
Built the pricing pipeline that collects and normalizes used OEM part listings from salvage yards and online marketplaces across the US.
ASReviewed byAmbika Sharma · Co-Founder & COO
Last updatedSep 30, 2026AS
Ambika Sharma
Co-Founder & COO, Part Price Guide
12 years of project management and technical operations experience. Reviews price guides for sample size, fitment accuracy, and data freshness.
Price summary
A used 2021 Ram 3500 transmission ((AT), 4x2, Chassis Cab, 6 speed, 6.4L (AS66RC), PTO (left side)) costs $3,850 to $6,880, with a median asking price of $5,510. Based on 16 priced salvage yard listings across the US, updated Sep 30, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$5,510
Grade B (good)$3,850
USD
Condition comparison
Price by part grade
Grade AClean / low wear$4,000–$5,89512 listings
Grade BStandard used$3,850–$3,8501 listings
Grade XUngraded$3,983–$6,8803 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $4,000–$5,895 | 12 | |
| Grade BStandard used | $3,850–$3,850 | 1 | |
| Grade XUngraded | $3,983–$6,880 | 3 |
Median by grade
Grade price comparison
Grade A$5,510
Grade B$3,850
Ungraded$6,693
Median asking price by seller-reported condition grade · $3,850–$6,880 overall range
Trim-specific context
How does the (AT), 4x2, Chassis Cab, 6 speed, 6.4L (AS66RC), PTO (left side) compare?
This pricing covers the (AT), 4x2, Chassis Cab, 6 speed, 6.4L (AS66RC), PTO (left side) variant of the 2021 Ram 3500 transmission, based on 16 priced listings. Its $5,510 median is 78% above the 2021 Ram 3500 transmission overall median of $3,092.
There are 15 other transmission variants available for the 2021 Ram 3500.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Same trim, other years
(AT), 4x2, Chassis Cab, 6 speed, 6.4L (AS66RC), PTO (left side) in other model years
Same year, other trims
What other 2021 Ram 3500 transmission variants are available?
(AT), 4x2, Chassis Cab, 8 speed
42 listings$1,879$920 – $3,000(AT), 4x2, Pickup, 8 speed
42 listings$1,879$920 – $3,000(AT), 4x2, Pickup, 6 speed, opt ETL
40 listings$3,246$1,700 – $7,566(AT), 4x4, Pickup, 6 speed, opt ETM
40 listings$2,547$1,500 – $3,760(AT), 4x4, Chassis Cab, 6 speed, 6.7L (AS69RC), w/o PTO
39 listings$4,829$2,533 – $6,303(AT), 4x4, Chassis Cab, 6 speed, 6.4L (AS66RC), w/o PTO
36 listings$4,625$3,000 – $6,880(AT), 4x4, Chassis Cab, 6 speed, 6.7L (AS69RC), PTO (left side)
36 listings$3,588$1,743 – $6,094(AT), 4x2, Chassis Cab, 6 speed, 6.4L (AS66RC), w/o PTO
30 listings$3,285$2,029 – $6,880(AT), 4x4, Pickup, 6 speed, opt ETL
29 listings$3,238$2,000 – $4,457(AT), 4x2, Chassis Cab, 6 speed, 6.7L (AS69RC), w/o PTO
18 listings$3,431$1,650 – $5,650(AT), 4x2, Chassis Cab, 6 speed, 6.7L (AS69RC), PTO (left side)
17 listings$5,050$2,850 – $5,895(AT), 4x2, Pickup, 6 speed, opt ETM
13 listings$3,813$2,688 – $5,500(AT), 4x4, Chassis Cab, 8 speed
12 listings$1,028$853 – $1,400(AT), 4x4, Pickup, 8 speed
12 listings$1,028$853 – $1,400(AT), 4x4, Chassis Cab, 6 speed, 6.4L (AS66RC), PTO (left side)
11 listings$3,008$2,268 – $6,880Back to full guide
2021 Ram 3500 transmission — all trims
Common questions
2021 Ram 3500 transmission ((AT), 4x2, Chassis Cab, 6 speed, 6.4L (AS66RC), PTO (left side)) FAQ
How much is a used 2021 Ram 3500 transmission ((AT), 4x2, Chassis Cab, 6 speed, 6.4L (AS66RC), PTO (left side))?
Based on 16 priced salvage-yard listings, a used 2021 Ram 3500 transmission in the (AT), 4x2, Chassis Cab, 6 speed, 6.4L (AS66RC), PTO (left side) variant lists between $3,850 and $6,880, with a median asking price of $5,510.
Which years use the (AT), 4x2, Chassis Cab, 6 speed, 6.4L (AS66RC), PTO (left side) transmission?
The (AT), 4x2, Chassis Cab, 6 speed, 6.4L (AS66RC), PTO (left side) variant appears in model years 2019, 2020, 2021, 2022, 2023, 2024. Prices and availability may differ by year.