How Harley-Davidson 45 Flathead auction prices have moved, year by year, from completed USD sales across every tracked source.
Direct answer
The median Harley-Davidson 45 Flathead auction sale price was $17,000 in 2026 so far across 11 completed USD sales, down 6% from $18,000 in 2025. Our records go back to 2016, across 42 completed USD sales. Yearly medians reflect the mix of model years and conditions that sold.
By year sold
Median and middle-50% range of completed USD auction sales in each calendar year. Years with fewer than 3 sales are marked as thin.
| Year sold | Sales | Median price | Middle 50% |
|---|---|---|---|
| 2026 so far | 11 | $17,000 | $14,950 – $22,350 |
| 2025 | 7 | $18,000 | $14,950 – $27,500 |
| 2024 | 4 | $16,100 | $13,088 – $17,813 |
| 2023 | 3 | $29,000 | $27,625 – $48,600 |
| 2022 | 5 | $16,750 | $15,750 – $17,200 |
| 2021 | 2 (thin) | $26,300 | $17,450 – $35,150 |
| 2019 | 1 (thin) | $20,700 | $20,700 – $20,700 |
| 2018 | 2 (thin) | $9,175 | $5,138 – $13,213 |
| 2017 | 4 | $26,350 | $18,831 – $32,750 |
| 2016 | 3 | $24,150 | $22,075 – $34,575 |
Trend
Median sold price by month, based on completed auction results from the past 12 months.
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Latest results
The most recent completed Harley-Davidson 45 Flathead auctions across all tracked sources.
| Price | Year | Mileage | Auction house | Location | Date | Status | Listing |
|---|---|---|---|---|---|---|---|
| $17,000 | 1940 | 38,000 mi | Bring a Trailer | Sister Bay, WI | Oct 2, 2026 | Sold | View auction |
| $16,500 | 1942 | 27 mi | Bring a Trailer | Leander, TX | Jun 26, 2026 | Sold | View auction |
| $14,000 | 1941 | 45 mi | Bring a Trailer | Leander, TX | Jun 26, 2026 | Sold | View auction |
| $20,500 | 1941 | 500 mi | Hagerty | Van Nuys, CA | Jun 5, 2026 | Sold | View auction |
| $10,925 | 1950 | 0 mi | Bonhams | 475 Steamboat Road | May 31, 2026 | Sold | View auction |
| $15,400 | 1945 | 0 mi | Mecum Auctions | Unknown | May 14, 2026 | Sold | View auction |
| $38,500 | 1942 | 0 mi | Mecum Auctions | Unknown | May 13, 2026 | Sold | View auction |
| $24,200 | 1942 | 0 mi | Mecum Auctions | Unknown | May 12, 2026 | Sold | View auction |
| $29,700 | 1942 | 0 mi | Mecum Auctions | Unknown | May 10, 2026 | Sold | View auction |
| $17,759 | 1934 | 30,000 mi | Bring a Trailer | Bloomington, IL | Feb 20, 2026 | Sold | View auction |
Keep exploring
Price ranges based on recent auction data · click to see detailed history
Reference notes
The median Harley-Davidson 45 Flathead auction sale price was $17,000 in 2026 so far across 11 completed USD sales, down 6% from $18,000 in 2025. Our records go back to 2016, across 42 completed USD sales. Yearly medians reflect the mix of model years and conditions that sold.
Comparing years with at least 3 completed USD sales, the median moved from $18,000 in 2025 to $17,000 in 2026 (down 6%). The mix of condition, mileage, and model years that sold each year affects these medians.
The highest yearly median on record was $29,000 in 2023, across 3 completed USD sales.
Our completed USD auction results for the Harley-Davidson 45 Flathead start in 2016 and cover 42 sales.
Completed results from Bring a Trailer, Cars & Bids, Hemmings, AutoHunter, Hagerty, PCAR Market, All Collector Cars, Gooding & Co, RM Sotheby's, Barrett-Jackson, Sotheby's Motorsport, Car & Classic, The Market, Broad Arrow, MB Market, Mecum Auctions, PistonHeads, Collecting Cars, and Bonhams, normalized into one schema.
New auction results are collected every 15 minutes.