Price Match GuaranteeCraftsman Pressure Washer Spark Plug Parts
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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 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.
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.
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.
Briggs & Stratton Spark Plug (RC12YC), Selected Engines 3/LC Gas (.020 gap)
Plug cover
Spark plug boot
Champion Spark Plug (RN4C)
Spark plug boot
Champion Spark Plug (DJ7Y)
NGK Spark Plug (BPR6ES) SOLID
Lkar9bi9 spark plug
Craftsman Pressure Washer Spark Plug Parts
A fouled or worn spark plug is one of the most common reasons a Craftsman pressure washer won't start or runs rough. Spark plugs are a seasonal maintenance item — replace them every season or after extended storage to ensure reliable ignition on first pull. Craftsman pressure washers use standard automotive-style spark plugs, but the correct heat range and gap matter for consistent starting.
When your Craftsman PW sits idle over winter or sits in the garage, fuel oxidizes and spark plug electrodes corrode. A fresh spark plug is often the quickest, cheapest fix before diving into carburetors. Keep the right OEM spark plug on hand so you're not stranded when the engine balks at startup.
- Won't start or hard start: fouled or gapped incorrectly; replace with OEM spec
- Rough idle or poor power: worn electrode gaps; fresh plug restores combustion
- Black sooty deposits on plug: running too rich; common after long storage with stale fuel
- White or tan deposits: running lean; check air filter, fuel line, and carburetor before replacing plug
- Seasonal maintenance: replace spark plug before winter storage and again in spring for reliable startup
Find Replacement Craftsman Pressure Washer Spark Plug Parts Online by Model or Part Number
Popular Craftsman Pressure Washer Models
Craftsman Pressure Washer Spark Plug FAQs
What spark plug does my Craftsman pressure washer use?
Most Craftsman pressure washers use a Champion RJ19LM or NGK BR2LM spark plug. The exact part depends on your engine model — Craftsman PW units are powered by Briggs & Stratton, Subaru, Kohler, or LCT small engines. Enter your Craftsman pressure washer model number to confirm the correct spark plug type and heat range for your engine.
Why won't my Craftsman pressure washer start?
A fouled spark plug is the #1 reason Craftsman pressure washers won't start, especially after sitting in storage. Pull the spark plug and inspect it — black soot, wet fuel deposits, or a gap wider than 0.040" all prevent ignition. Try a fresh, correctly-gapped OEM spark plug first. If that doesn't work, check fuel flow, the carburetor, and air filter next.
How often should I replace the spark plug in my Craftsman pressure washer?
Replace the spark plug before each season of use and before extended storage. If you use your Craftsman PW frequently (weekly or more), inspect the plug every 25 to 50 hours and replace it annually. A fresh plug is inexpensive insurance against no-start problems on a heavy-use machine.
What's the correct spark plug gap for a Craftsman pressure washer?
Most Craftsman pressure washer spark plugs are set to 0.030 to 0.040" gap at the factory. Check your engine manual for the exact specification — gap too wide causes weak spark and hard starting; gap too tight reduces spark intensity. OEM Craftsman spark plugs come pre-gapped, but if you gap a plug yourself, use a gap tool and verify against your engine specs.
Order Craftsman Pressure Washer Spark Plug Parts Online
Keep your Craftsman pressure washer running smoothly by replacing worn-out spark plug parts. Our range of genuine replacement parts ensures compatibility and performance, allowing for efficient repairs and maintenance. Enjoy the convenience of same-day shipping, making it easy to receive your parts promptly and minimize downtime. With our model number and part number lookup, finding the exact spark plug part you need is a breeze. Plus, benefit from a No-Hassle 365-Day Returns policy and our Price Match Guarantee for strong value. Whether you're a homeowner or a professional technician, trust our online store for your Craftsman pressure washer spark plug needs. Browse our Craftsman Pressure Washer Parts for more. For troubleshooting tips and repair guidance, visit our Pressure Washer Repair Help page and tackle any maintenance challenge with confidence.
Craftsman Pressure Washer Model Number: Where to Look
On Craftsman pressure washers, look for the model number on a sticker attached to the frame, near the engine, or on the pump housing. The label may also include the serial number, so copy the model number carefully, including periods, letters, and any hyphens. Enter it in the search bar to filter the full pressure washer parts catalog to parts that fit your specific Craftsman unit, not just the spark plug or another individual part. Matching by model accounts for differences in engine, pump, and frame design between similar-looking machines. It is the quickest way to be sure the part fits before you order.
Spark Plugs for Craftsman Pressure Washer
Regular spark plug replacement keeps your Craftsman Pressure Washer starting cleanly and running at full power. Repair Clinic stocks OEM spark plugs for a wide range of engines, along with installation videos and gap-setting guides. Use the model number lookup to confirm the exact spark plug specification for your engine, and keep a spare on hand for the next tune-up.
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