Spark Plug for 2021-2023 Suzuki C50 Boulevard & More - NGK 5686

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$10.99

MPN: 5686

Item Package Quantity: 1

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NGK NGK Iridium IX Spark Plug P/N:5686

$10.99

Description

NGK 5686 spark plug for the 2021-2023 Suzuki C50 Boulevard 805cc and other vehicles ignites the air-fuel charge in the cylinder. As one of the NGK spark plugs in the Iridium IX line, it is recommended for modified or high-performance applications, or as an upgrade to OE nickel alloy plugs.

NGK Iridium IX line, designed for the performance enthusiast
Fine wire 0.6 millimeter iridium tip on the center electrode for durability and a stable spark
Iridium alloy center electrode with six times the density of platinum and a very high melting point
Tapered cut ground electrode with a reduced quenching design for ignitability, acceleration and fuel efficiency
Solid copper core of 98% pure copper for heat dissipation, conductivity and wide heat ranges
Trivalent metal plating that resists corrosion and seizing for easier installation and removal

Quick facts

Part: NGK 5686 spark plug
Fits: 2021-2023 Suzuki C50 Boulevard 805cc and other vehicles
Condition: New

Hard starting, a rough idle, a misfire or weak throttle response can mean a plug is worn. Before you replace it, rule out the ignition coil or plug cap, the air filter and the fuel supply, since problems there can also make the engine run rough.

Fits

The 2021-2023 Suzuki C50 Boulevard 805cc, the 2021-2023 Suzuki C50T Boulevard 805cc and the 2018-2020 Yamaha YFM450 Kodiak 450 421cc are among the vehicles this plug fits. The 805cc Suzuki engines take two plugs, one per cylinder, and the 421cc Yamaha takes one. If your vehicle is not named here, look up its year and engine on the Buyer's Guide tab.

Specifications

Fit and size

Quantity per vehicle: varies by vehicle
Thread size: M12 - 1.25
Short-style plug: No

Build and materials

Type: single iridium
Center electrode: fine wire 0.6 millimeter iridium tip
Ground electrode: tapered cut
Core: solid copper, 98% pure copper
Plating: trivalent metal plating
Condition: New
NGK part number: DR7EIX

Interchange: DR7EIX

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

This part cross-references / interchanges with the following part numbers:

XS4164, XS4164DP, 4089, 5371, 5686, IX22, X22ES-ZU, DR7EIX, D7RP, 90793-20010, 90793-20021

Frequently Asked Questions

Is the NGK 5686 the right spark plug for the 2021-2023 Suzuki C50 Boulevard 805cc?

Yes. NGK 5686 fits the 2021-2023 Suzuki C50 Boulevard 805cc, which takes two plugs, one per cylinder. For another vehicle, look up its year and engine on the Buyer's Guide tab.

What is the thread size of this NGK Iridium IX spark plug?

The NGK 5686 has an M12 - 1.25 thread. It is not a short-style plug.

Is the tip on NGK iridium spark plugs like the 5686 fine wire?

Yes. This spark plug has a fine wire 0.6 millimeter iridium tip on the center electrode and a tapered cut ground electrode.

What signs can mean a plug like the NGK 5686 is wearing out?

Hard starting, a rough idle or weak throttle response can mean this spark plug is worn. With the engine cool, a removed plug can show a worn center electrode or fouling.

Is the NGK DR7EIX the same plug as 5686?

Yes. NGK lists this spark plug under both 5686 and DR7EIX, so either number finds it.