Yamaha CR4HSA Spark Plug – CR4-HSA00-00-00 | OEM

Yamaha CR4HSA Spark Plug – CR4-HSA00-00-00 | OEM

Maintain dependable ignition and engine performance with the Genuine Yamaha OEM Spark Plug CR4-HSA00-00-00 (NGK CR4HSA). Manufactured to Yamaha's factory specifications, this hotter heat-range resistor plug is Yamaha's cold-climate specification for earlier 9.9 HP four-strokes, supporting reliable starting, smooth operation, and efficient combustion.

Engine Compatibility

Specified by Yamaha for the following four-stroke outboards:

• F9.9 / FT9.9 / T9.9 (1985–2003) — cold-climate application

Compatibility can vary by complete engine model, production year, and serial number.

Important: CR4HSA is a hotter heat-range plug Yamaha specifies for these engines when run in cold climates. Please verify the correct plug for your engine before ordering.

Product Details

• Manufacturer: Yamaha
• Yamaha Part Number: CR4-HSA00-00-00
• NGK Part Number: CR4HSA
• Product Type: Outboard Spark Plug
• Thread Size: 10 mm
• Hex Size: 5/8" (16 mm)
• Reach: 12.7 mm
• Factory Gap: 0.024" (0.6 mm)
• Heat Range: 4
• Resistor: Yes
• Engine Type: Select Yamaha Four-Stroke Outboards
• Condition: New
• Part Type: Genuine Yamaha OEM

Important Fitment Information

Please verify your complete engine model, model year, serial number, and required spark-plug specification before ordering. Spark-plug requirements should not be determined by horsepower alone.

Sold individually — this listing is for one spark plug. Order the quantity your engine requires.

Genuine Yamaha OEM Part

This is a 100% Genuine Yamaha OEM spark plug—not an aftermarket substitute. It is manufactured to Yamaha's specifications for proper fit, ignition performance, and compatibility with applicable Yamaha outboards.

Replacing spark plugs at Yamaha's recommended service intervals helps support dependable starting, smooth engine operation, and consistent combustion performance.

Genuine Yamaha Parts from Compleat Angler Marine

Compleat Angler Marine, part of Pompano Beach Marine Center, supplies Genuine Yamaha OEM outboard parts, maintenance products, propellers, rigging components, accessories, and outboard motors. As an Authorized Yamaha Pro Elite Plus Dealer, we're here to help you find the correct Yamaha maintenance parts for your outboard.

Nationwide Shipping

We ship Genuine Yamaha OEM parts nationwide. Orders are carefully packed for safe delivery.

Need help confirming fitment?
Call 954-946-1451 or email support@compleatanglermarine.com.