2018 Cadillac CTS engine — 3.6L, VIN S (8th digit, opt LGX), RWD, engine cooling (opt KC4) price snapshot
- Low
- $550
- Average
- $2,338
- High
- $3,250
Year & trim-specific price guide
Used 2018 Cadillac CTS Engine — 3.6L, VIN S (8th digit, opt LGX), RWD, engine cooling (opt KC4) prices
Trim-specific pricing for the 3.6L, VIN S (8th digit, opt LGX), RWD, engine cooling (opt KC4) variant of the 2018 Cadillac CTS engine, built from 31 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 updatedOct 9, 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 Cadillac CTS engine (3.6L, VIN S (8th digit, opt LGX), RWD, engine cooling (opt KC4)) costs $550 to $3,250, with a median asking price of $2,490. Based on 31 priced salvage yard listings across the US, updated Oct 9, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$2,625
Grade B (good)$737
USD
Condition comparison
Price by part grade
Grade AClean / low wear$1,200–$3,25024 listings
Grade BStandard used$550–$7372 listings
Grade XUngraded$1,200–$2,7505 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $1,200–$3,250 | 24 | |
| Grade BStandard used | $550–$737 | 2 | |
| Grade XUngraded | $1,200–$2,750 | 5 |
Median by grade
Grade price comparison
Grade A$2,625
Grade B$737
Ungraded$2,000
Median asking price by seller-reported condition grade · $550–$3,250 overall range
Trim-specific context
How does the 3.6L, VIN S (8th digit, opt LGX), RWD, engine cooling (opt KC4) compare?
This pricing covers the 3.6L, VIN S (8th digit, opt LGX), RWD, engine cooling (opt KC4) variant of the 2018 Cadillac CTS engine, based on 31 priced listings. Its $2,490 median is 13% above the 2018 Cadillac CTS engine overall median of $2,200.
There are 6 other engine variants available for the 2018 Cadillac CTS.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Same trim, other years
3.6L, VIN S (8th digit, opt LGX), RWD, engine cooling (opt KC4) in other model years
Same year, other trims
What other 2018 Cadillac CTS engine variants are available?
3.6L, VIN 8 (8th digit, opt LF3, twin turbo)
26 listings$2,669$1,700 – $5,1502.0L (VIN X, 8th digit, opt LTG), RWD
11 listings$2,200$1,500 – $3,0252.0L (VIN X, 8th digit, opt LTG), AWD
9 listings$1,925$1,070 – $2,2223.6L, VIN S (8th digit, opt LGX), RWD, w/o engine cooling
9 listings$1,282$520 – $1,6503.6L, VIN S (8th digit, opt LGX), AWD
6 listings$800$588 – $1,0996.2L (VIN 6, 8th digit, opt LT4)
2 listings$8,995$7,500 – $8,995Back to full guide
2018 Cadillac CTS engine — all trims
Common questions
2018 Cadillac CTS engine (3.6L, VIN S (8th digit, opt LGX), RWD, engine cooling (opt KC4)) FAQ
How much is a used 2018 Cadillac CTS engine (3.6L, VIN S (8th digit, opt LGX), RWD, engine cooling (opt KC4))?
Based on 31 priced salvage-yard listings, a used 2018 Cadillac CTS engine in the 3.6L, VIN S (8th digit, opt LGX), RWD, engine cooling (opt KC4) variant lists between $550 and $3,250, with a median asking price of $2,490.
Which years use the 3.6L, VIN S (8th digit, opt LGX), RWD, engine cooling (opt KC4) engine?
The 3.6L, VIN S (8th digit, opt LGX), RWD, engine cooling (opt KC4) variant appears in model years 2016, 2017, 2018, 2019. Prices and availability may differ by year.