2021 Ram 3500 transmission — (AT), 4x4, Chassis Cab, 6 speed, 6.4L (AS66RC), w/o PTO price snapshot
- Low
- $3,000
- Average
- $4,499
- High
- $6,880
Year & trim-specific price guide
Used 2021 Ram 3500 Transmission — (AT), 4x4, Chassis Cab, 6 speed, 6.4L (AS66RC), w/o PTO prices
Trim-specific pricing for the (AT), 4x4, Chassis Cab, 6 speed, 6.4L (AS66RC), w/o PTO variant of the 2021 Ram 3500 transmission, built from 36 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), 4x4, Chassis Cab, 6 speed, 6.4L (AS66RC), w/o PTO) costs $3,000 to $6,880, with a median asking price of $4,625. Based on 36 priced salvage yard listings across the US, updated Sep 30, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$4,625
Grade B (good)$4,000
Grade C (fair)$4,000
USD
Condition comparison
Price by part grade
Grade AClean / low wear$3,000–$5,26032 listings
Grade BStandard used$4,000–$4,0001 listings
Grade CVisible wear$4,000–$4,0001 listings
Grade XUngraded$6,693–$6,8802 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $3,000–$5,260 | 32 | |
| Grade BStandard used | $4,000–$4,000 | 1 | |
| Grade CVisible wear | $4,000–$4,000 | 1 | |
| Grade XUngraded | $6,693–$6,880 | 2 |
Median by grade
Grade price comparison
Grade A$4,625
Grade B$4,000
Grade C$4,000
Ungraded$6,880
Median asking price by seller-reported condition grade · $3,000–$6,880 overall range
Trim-specific context
How does the (AT), 4x4, Chassis Cab, 6 speed, 6.4L (AS66RC), w/o PTO compare?
This pricing covers the (AT), 4x4, Chassis Cab, 6 speed, 6.4L (AS66RC), w/o PTO variant of the 2021 Ram 3500 transmission, based on 36 priced listings. Its $4,625 median is 50% 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), 4x4, Chassis Cab, 6 speed, 6.4L (AS66RC), w/o PTO 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, 6.7L (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, Chassis Cab, 6 speed, 6.4L (AS66RC), PTO (left side)
16 listings$5,510$3,850 – $6,880(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), 4x4, Chassis Cab, 6 speed, 6.4L (AS66RC), w/o PTO) FAQ
How much is a used 2021 Ram 3500 transmission ((AT), 4x4, Chassis Cab, 6 speed, 6.4L (AS66RC), w/o PTO)?
Based on 36 priced salvage-yard listings, a used 2021 Ram 3500 transmission in the (AT), 4x4, Chassis Cab, 6 speed, 6.4L (AS66RC), w/o PTO variant lists between $3,000 and $6,880, with a median asking price of $4,625.
Which years use the (AT), 4x4, Chassis Cab, 6 speed, 6.4L (AS66RC), w/o PTO transmission?
The (AT), 4x4, Chassis Cab, 6 speed, 6.4L (AS66RC), w/o PTO variant appears in model years 2019, 2020, 2021, 2022, 2023, 2024. Prices and availability may differ by year.