Finding Parts for Your Craftsman Generator
The Craftsman DLS3500 is a portable generator that's been around long enough that finding replacement parts requires some effort. You won't have everything in stock at your local hardware store. Most parts need to be sourced through catalogs or specialty suppliers, and the documentation isn't always easy to track down. I've dealt with this generator more than once, mostly on jobs where someone needed it running yesterday and the starter assembly gave out. The hardest part isn't always the part itself—it's figuring out which version you actually have. Craftsman rebranded and reissued these units over the years, and the part numbers shift slightly between production runs.
Where to Find Your Craftsman Dls 3500 Parts Manual
The most reliable starting point is the Sears parts diagram site. Go to searspartsdirect.com and search for DLS3500. They break the generator down into exploded-view diagrams with every component listed by part number. You can also find these manuals on Schematics.com or ManualsLib if you prefer a downloadable PDF. Some third-party sites host scanned copies of the original Craftsman service bulletins, but those are often harder to read than the official diagrams. When I was working through a fuel stop issue last year, I had to cross-reference three different sources just to confirm the carburetor rebuild kit number. The manual lists it as part number 141758, but some aftermarket suppliers list it differently. Buy from the OEM-equivalent side of things and you're less likely to get something that doesn't fit. Common pitfall: Don't assume your unit number matches the manual you found online. Check the actual model and serial plate on the generator frame—it's usually on the side near the fuel tank. The model might read DLS3500 but there could be a suffix like DLS3500A or DLS3500B that changes compatible parts.
Typical Parts You Will Need
Over the life of this generator, the things that actually wear out are pretty predictable. The spark plug is a standard automotive type—usually a Champion RC12YC or equivalent. Change it once a season or after about 100 operating hours. The air filter is a foam element that gets clogged with shop dust if you're running it in a construction environment. I've seen guys run filters for years without changing them and then wonder why the generator won't stay at speed under load. The carburetor is the next biggest trouble spot. Ethanol-blended fuel eats at the internal seals over time. If your generator is five or six years old and hasn't had a carb service, plan on a rebuild kit or a replacement carb assembly. The kit contains new needles, seats, and gaskets. A full carb replacement runs about forty dollars OEM; the rebuild kit is closer to twelve. The oil is a standard SAE 30 for normal temperatures. Don't skimp on the oil filter if your model has one—some DLS3500 variants do. Drain the oil warm so it flows out faster, and replace the filter at the same time. I've opened up engines that looked fine on the outside because someone used synthetic and never changed it. The bearings don't care what kind of oil you put in if it hasn't been changed in three years.
Get the Full Details

Reading the Parts Diagram
The exploded-view diagrams in the Craftsman Dls 3500 Parts Manual show each component separated but in assembly order. The part number column is what matters. Match your physical part to the diagram, note the number, and order from there. If a part is no longer listed, it's either been discontinued or replaced by an updated version. Sears usually notes superseded part numbers in a separate column, so check for that before ordering. One thing the diagrams don't always make clear is which fasteners are critical. The engine mounting bolts and the alternator bracket hardware need to be torqued properly. Running them down by feel works in a pinch, but if you're rebuilding anything near the crankshaft or cam area, use a torque wrench. I learned that the hard way when a valve cover bolt stripped because someone had over-torqued it during a previous service. The aluminum threads are soft and not forgiving.
Limitations and What the Manual Won't Tell You
The parts manual covers replacement components, but it doesn't cover troubleshooting. If your generator isn't starting, the manual won't walk you through diagnosing whether it's a spark issue, a fuel issue, or a compression problem. You need a separate service manual for that, and those are harder to find. Some copies circulate on enthusiast forums, but they're often low-resolution scans. Another gap is that the manual assumes you're working on a clean, disassembled unit. It doesn't account for the reality of working in a cramped garage with rusted bolts and degraded wiring. The fuel line connections on these units crack with age. When you pull the carburetor, expect to replace the fuel line even if it looks okay. A cracked line will let air into the system and cause exactly the kind of intermittent running that drives people crazy trying to diagnose. If you need a full service manual beyond the parts diagram, your best bet is hunting down a copy of the Craftsman generator service bulletin from that era. Third-party manuals like those from ManualBase sometimes have more detailed teardown procedures. The parts manual alone gets you most of the way there for basic maintenance, but deeper repairs require more information.
The generator itself is decent for the price point when it was new. Parts availability has gotten spotty over time since Sears exited the small engine business. Some components are now sourced through Generac or other distributors who picked up Craftsman tool lines. If a specific part is discontinued, you may need to adapt a similar component from a comparable generator platform rather than finding an exact match. That's when knowing your unit's full model suffix becomes critical.
