2018 Ram 2500 engine computer — Electronic Control Module, 5.7L, CNG (RH rear engine compartment) price snapshot
- Low
- $115
- Average
- $200
- High
- $280
Year & trim-specific price guide
Used 2018 Ram 2500 Engine Computer — Electronic Control Module, 5.7L, CNG (RH rear engine compartment) prices
Trim-specific pricing for the Electronic Control Module, 5.7L, CNG (RH rear engine compartment) variant of the 2018 Ram 2500 engine computer, built from 29 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 27, 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 2018 Ram 2500 engine computer (Electronic Control Module, 5.7L, CNG (RH rear engine compartment)) costs $115 to $280, with a median asking price of $186. Based on 29 priced salvage yard listings across the US, updated Sep 27, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$188
Grade B (good)$257
Grade C (fair)$200
USD
Condition comparison
Price by part grade
Grade AClean / low wear$115–$26614 listings
Grade BStandard used$141–$28010 listings
Grade CVisible wear$160–$2503 listings
Grade XUngraded$140–$1852 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $115–$266 | 14 | |
| Grade BStandard used | $141–$280 | 10 | |
| Grade CVisible wear | $160–$250 | 3 | |
| Grade XUngraded | $140–$185 | 2 |
Median by grade
Grade price comparison
Grade A$188
Grade B$257
Grade C$200
Ungraded$185
Median asking price by seller-reported condition grade · $115–$280 overall range
Trim-specific context
How does the Electronic Control Module, 5.7L, CNG (RH rear engine compartment) compare?
This pricing covers the Electronic Control Module, 5.7L, CNG (RH rear engine compartment) variant of the 2018 Ram 2500 engine computer, based on 29 priced listings. Its $186 median is 13% below the 2018 Ram 2500 engine computer overall median of $213.
There are 4 other engine computer variants available for the 2018 Ram 2500.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Same trim, other years
Electronic Control Module, 5.7L, CNG (RH rear engine compartment) in other model years
Same year, other trims
What other 2018 Ram 2500 engine computer variants are available?
Electronic Control Module, 6.7L (diesel, LH side of block)
28 listings$428$230 – $439Electronic Control Module, 6.4L (gasoline, RH rear engine compartment)
26 listings$200$100 – $345Emission Control, (6.7L, diesel), (DEF pump module), (mounted on top of urea tank)
12 listings$85$65 – $285Electronic Control Module, 5.7L, gasoline (RH rear engine compartment)
11 listings$186$156 – $257Back to full guide
2018 Ram 2500 engine computer — all trims
Common questions
2018 Ram 2500 engine computer (Electronic Control Module, 5.7L, CNG (RH rear engine compartment)) FAQ
How much is a used 2018 Ram 2500 engine computer (Electronic Control Module, 5.7L, CNG (RH rear engine compartment))?
Based on 29 priced salvage-yard listings, a used 2018 Ram 2500 engine computer in the Electronic Control Module, 5.7L, CNG (RH rear engine compartment) variant lists between $115 and $280, with a median asking price of $186.
Which years use the Electronic Control Module, 5.7L, CNG (RH rear engine compartment) engine computer?
The Electronic Control Module, 5.7L, CNG (RH rear engine compartment) variant appears in model years 2016, 2017, 2018. Prices and availability may differ by year.