A Cub Cadet SRC 621 string trimmer typically costs about $60-$150 used, while a clean, serviced example may reach $175. The model is discontinued, so condition, included accessories, local availability, and whether the engine starts reliably matter more than a current manufacturer list price.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Used SRC 621 | $40 | $100 | $175 | Working condition; price varies by wear and location |
| Serviced used unit | $100 | $145 | $200 | May include tune-up or fresh cutting line |
| Repair before use | $25 | $80 | $180 | Parts and shop labor vary by fault |
| Replacement trimmer | $100 | $220 | $400 | New models differ in engine and features |
What a working Cub Cadet SRC 621 usually sells for
Most buyers should budget $60-$150 for a used SRC 621 that starts, idles, and cuts properly. Around $100 is a reasonable midpoint for an ordinary, complete unit with visible wear but no major mechanical issue. A carefully maintained example with a working guard, handle, and cutting head can justify a higher asking price; a nonrunning machine should be priced as a repair project.
For a typical purchase, plan on roughly $100 before tax, fuel, or any needed replacement line. There is no dependable new retail price because the model is no longer a regular current product. A purported new-old-stock unit may cost more, but confirm that it has not been stored with stale fuel or deteriorated seals.
Assumptions: U.S. private-party pricing, complete trimmer, ordinary wear, and no major engine damage.
Engine, cutting head, and repair labor in the quote
A private seller’s price usually covers the machine and accessories, not a warranty or repair. When a shop services one, the bill can quickly approach or exceed the value of an average used trimmer. Ask for an itemized quote and whether diagnosis is included in the final repair charge.
| Cost item | Typical price | What it covers |
|---|---|---|
| Basic inspection or diagnosis | $25-$60 | Starting, fuel, ignition, and visible wear checks |
| Carburetor cleaning or service | $50-$120 | Cleaning, adjustment, or minor service parts |
| Spark plug and air filter | $8-$30 | Common tune-up parts, sometimes plus labor |
| Cutting line or head service | $5-$45 | Line refill or replacement head, depending on type |
| Shop labor | $60-$110 per hour | Varies by shop minimum and repair complexity |
One hour of shop time at $60-$110 can consume much of the trimmer’s resale value. Parts availability should be checked before authorizing work on a discontinued model.
How starting condition and missing parts change the price
Engine behavior is the most important price variable. A unit that starts cold, runs steadily, and responds to throttle is worth more than one demonstrated only after warming up. Ask the seller to start it from cold and run it long enough to reveal stalling, smoke, fuel leaks, or a failing ignition component.
Completeness matters too. A missing guard, handle component, fastener, or cutting head can add replacement expense, and a model-specific part may be harder to source than generic line. A trimmer with a cracked fuel tank or damaged engine housing should be valued cautiously.
Subtract roughly $25-$75 for a minor repair concern and more when the engine will not run. That is a negotiation allowance, not a guaranteed repair quote; parts and labor can push a serious repair above $150.
Price checks should include a cold start, throttle response, visible fuel leaks, cutting-head operation, and the condition of safety components.
Is a repair cheaper than replacing the SRC 621?
For a $60-$100 purchase, replacing inexpensive wear items can make sense if the engine is sound. A $50 tune-up on a reliable machine may be reasonable; a $150 repair on a trimmer that still needs a cutting head is harder to justify. A buyer who already owns the SRC 621 may also save by doing simple maintenance, provided the work is within their skill level.
New gas trimmers commonly range from about $100-$250 for basic residential models, with premium equipment reaching $300-$400 or more. Battery models may cost more upfront if the battery and charger are not included. Compare equivalent equipment and included accessories, rather than treating every new trimmer as a direct replacement.
Use the total repair estimate, not the price of the individual part, to decide whether to keep an older unit. If the estimate approaches the cost of a comparable new trimmer, replacement may offer better value and easier parts support.
Do rural and city listings show different SRC 621 prices?
Prices vary more with local supply and condition than with a fixed regional rate. In a metro area with many used lawn tools, comparable listings may be easier to find and sometimes 5%-15% less than a scarce listing. In rural areas, limited supply can push asking prices 10%-20% higher, though a buyer may find a lower price from a seller clearing out equipment.
These are practical comparison ranges, not guaranteed regional premiums. Shipping a gas-powered used trimmer can be inconvenient and costly, so local pickup often makes more financial sense. Compare several nearby listings and account for travel before treating a low online price as a bargain.
Check nearby listings within a reasonable driving distance before paying extra for scarcity. The seller’s demonstration and the machine’s condition should carry more weight than the asking price alone.
Three realistic SRC 621 purchase budgets
A complete, running machine with average wear may sell for $90. Add $10-$20 for line or a small maintenance item, and the practical outlay is about $100-$110, excluding tax.
A lower-priced unit listed at $50 but needing carburetor service could require $50-$120 for the repair, putting the total near $100-$170. If diagnosis adds a shop minimum or parts are unavailable, the final expense can rise further.
A clean, demonstrated trimmer priced at $150 may need only $10-$30 in basic supplies, for a total around $160-$180 before tax. That price is most defensible when the machine runs properly and includes its guard and cutting head.
Compare the complete out-the-door estimate across listings, including expected repairs and missing equipment.
How to pay less without inheriting a repair bill
Ask the seller to demonstrate a cold start and cutting operation before negotiating. Confirm what is included, inspect the fuel system and guard, and avoid paying a premium for cosmetic cleanliness when the engine has not been tested. If a fault is disclosed, request a specific price reduction based on a repair estimate rather than assuming a low asking price means low ownership cost.
Buying outside the busiest lawn-care season may improve selection or bargaining room, but condition remains the priority. For a unit needing work, set a firm ceiling that includes diagnosis, likely parts, and labor. Skip upgrades that do not solve a real need, and avoid spending heavily on a discontinued model unless parts are confirmed available.
A tested $100 trimmer can cost less in the long run than a $50 project with uncertain parts and shop time.