NGK 3252 Spark Plug

Overview

NGK spark plug 3252 is a standard replacement plug built around OE-style specifications for small-displacement performance and off-road applications. It combines a copper core center electrode with nickel electrode materials, a 0.032 pre-gap, and a flat seat for consistent ignition performance.

Compatible with Yamaha YZ65 and KTM two-stroke models listed below, this NGK 3252 spark plug is specified with a 0.024-inch gap in the fitment notes for those applications. The BR9ECM design supports reliable spark delivery in demanding riding conditions.

Key Features

• Copper core center electrode for stable ignition response
• Nickel center and ground electrode tip materials
• Low-angle ground electrode with slant configuration
• 5000 ohm resistance for ignition system control
• Flat seat, 14 mm thread diameter, and 0.75-inch reach
• Non-removable nut terminal for secure connection

Detailed Description

NGK 3252, also identified as BR9ECM, is a standard spark plug engineered with a copper core center electrode, nickel tip materials, and a single ground electrode. The 13/16-inch hex and flat seat support common service applications, while the 9 heat range and 0.032 pre-gap provide a specification set suited to high-revving small engines. NGK’s OE supplier background and long-standing manufacturing focus make this plug a direct choice for riders who need consistent ignition performance from a trusted ignition component.

This part cross-references Anchor 3252 for the same application.

What It Is Used For

• Restoring weak or inconsistent spark output
• Replacing worn spark plugs with carbon buildup or electrode wear
• Addressing hard starting and rough running conditions
• Maintaining proper ignition performance in high-compression small engines
• Supporting service intervals on off-road motorcycles and similar applications

Installation Notes and Tips

Verify the specified gap before installation and follow the vehicle manufacturer’s gap recommendation when it differs from the plug’s pre-gap. Confirm thread diameter, reach, seat type, and heat range against the application before service. The fitment data lists Yamaha YZ65 and KTM 125 SX, 150 SX, 150 XC, 85 SX, 105 SX, 105 XC, 85 XC, 144 SX, and Aprilia RS 250 applications with the notes shown in the fitment table.

Quality Assurance

NGK is a major OE spark plug supplier in North America and manufactures to original equipment standards for durability and operational performance. Part number 3252 is built to the brand’s established ignition specifications and is identified by BR9ECM in the product data.