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Champion Spark Plug (RC12YC). The spark plug ignites the fuel and air mixture in the cylinder to power the engine. If the spark plug is burnt, fouled or damaged the engine may not start or may run rough.

Small engine primer bulb. The primer bulb draws additional fuel into the carburetor to help start the engine.

Tecumseh carburetor repair kit. If the carburetor is clogged, the engine won't get enough fuel. As a result, the engine may not start or may run poorly.

Bow Tie Cotter Pin

Briggs & Stratton Original Equipment 491588S Air Filter. Briggs & Stratton genuine parts are specially designed to exact OEM standards, manufactured and tested to help deliver optimum performance in Briggs & Stratton engines.

Fuel bowl gasket

Small engine Champion spark plug (RJ19LM). If the engine does not start, the spark plug may be defective. The spark plug should be replaced periodically during regular maintenance.

Genuine MTD 742-0305A-0637 Articulating Roto-Tiller Tine

Fuel Tank Kit

Briggs & Stratton Spark Plug (RJ19LM). If the engine does not start or runs poorly then the spark plug may be defective and will need replacement.

MTD Spark Plug. The spark plug ignites the fuel and air mixture in the cylinder to power the engine. If the spark plug is burnt, fouled or damaged the engine may not start or may run rough.

Carburetor gasket

Small engine NGK spark plug (BPR6ES). If the engine does not start, the spark plug may be defective. The spark plug should be replaced periodically during regular maintenance.

Fuel cap assembly

Carburetor for 2-cycle engine. If the carburetor is clogged, the engine won't get enough fuel. As a result, the engine may not start or may run rough.
Craftsman tillers are built to break ground season after season, but when the tines stop turning or the engine won't start, you need the right OEM parts fast. Whether you're running a front-tine cultivator or a rear-tine beast, Repair Clinic carries genuine Craftsman tiller parts — from carburetors and drive belts to tine assemblies and spark plugs.
Common tiller failures come down to a handful of parts. A seized or damaged carburetor from stale fuel is the most frequent culprit. Worn or bent tines lose their bite in hard soil. Drive belts slip or snap, and shear pins break — which is actually a safety feature doing its job when you hit a buried rock. We stock OEM replacements for every major Craftsman tiller model, and our model number lookup tool finds the exact part you need in seconds.
A carburetor clogged from old fuel is the #1 reason a Craftsman tiller won't start or runs rough. Ethanol in modern fuel gums up the carb jets and float. A carburetor rebuild kit is often the fix, especially if the tiller sat all winter. If the engine still won't start after cleaning the carb, check your spark plug and fuel line next.
Your model number is stamped on the frame or engine block — usually a 6-digit code starting with "CMXG" (Craftsman's garden equipment prefix). Look near the engine, under the handlebar, or on the main chassis. Once you have it, enter it into our model lookup tool and you'll see every part that fits your exact tiller, plus diagrams showing where each part goes.
Most of the time, you can replace just the tine set. Tines bolt to the shaft assembly. Bent or dulled tines lose their digging power fast — replacing them restores your tiller's ability to break hard soil. If the shaft itself is bent or the bearings are worn, you'll need to replace the tine shaft assembly, but that's less common.
Shear pins are designed to break when the tines jam on rocks or roots. That's a safety feature — it protects the transmission from catastrophic failure. Every time one breaks, you're doing the job right. Buy a 5-pack of OEM shear pins and keep them in your garage so you're never stuck. If pins break constantly, check for rocks or roots in your soil and clear them first.


Ordering Craftsman tiller parts online is simple and helps you find genuine OEM parts for your unit. With same-day shipping on most in-stock items, you'll have your replacement part fast, minimizing downtime. Our model/part number lookup finds the exact OEM part for your unit, and every order is backed by our 365-day return policy and price-match guarantee. Browse our repair help section for troubleshooting tips, part testing guides, and step-by-step installation videos for your specific product.
On Craftsman tillers, look for the model number stamped on the frame or engine block. Check around the engine, beneath the handlebar, and along the main chassis for a label or metal plate. Clean off dirt or grease if the numbers are hard to read, and record the complete model number, including any letters and punctuation. Enter that number in the model lookup to narrow the full Craftsman tiller parts catalog to parts matched to your unit. This applies across the tiller, so you can identify compatible engine, tine, belt, control, and maintenance parts without sorting through unrelated models. Matching by model first saves time and helps prevent ordering parts that do not fit.

Solid diagnostic work is what makes a Craftsman Tiller repair go quickly, and Repair Clinic's online library was built for exactly that. Symptom articles, part testing videos, wiring diagrams, and step-by-step written guides give owners and technicians the reference material to isolate the failed part. Look up your model number to match the right OEM part, then follow the installation video.