NGK DPR8Z spark plug for the 2012-2014 Honda TRX400X 397cc and other vehicles ignites the air-fuel mixture in the combustion chamber. The Standard line of NGK spark plugs is engineered for OE applications and comes in NGK's yellow box.
- Nickel alloy center electrode for consistent performance
- Trivalent metal plating for anti-corrosion and anti-seizing properties and easy installation and removal
- High grade alumina silicate ceramic insulator for dielectric performance
- Solid 98% pure copper core for heat dissipation, conductivity and wide heat ranges
- Cold-rolled threads that prevent cross-threading and damage to cylinder heads
- Triple gasket sealing that prevents combustion gas leakage
Quick facts
- Part: NGK DPR8Z spark plug
- Fits: 2012-2014 Honda TRX400X 397cc and other vehicles
- Condition: New
A worn plug can show up as hard starting, a misfire or rough running, though ignition and fuel parts produce those signs too. With the engine off and cool, look at the electrode and ceramic for wear, cracks or deposits before you replace it. Best for engines with factory nickel alloy plugs; not recommended with factory precious metal plugs.
Fits
This is a one-per-engine plug for the 2012-2014 Honda TRX400X 397cc, the 1999-2008 Honda TRX400EX Sportrax 397cc and the 1996-2004 Honda XR400R 397cc, among other machines. If yours is not one of these, find its year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per vehicle: 1
- Thread size: M12 - 1.25
- Reach: 0.750 in (19.0 mm)
- Gap: 0.028 in (0.7 mm)
Build and materials
- Type: Standard
- Center electrode: nickel alloy
- Core: solid copper, 98% pure
- Insulator: high grade alumina silicate ceramic
- Plating: trivalent metal
- NGK stock number: 4730
- Condition: New
In the box
One spark plug. The 397cc and 248cc engines each take one.
Interchange: X22GPR-U · X24GPR-U · 98061-58616
4106 · 4730
This part cross-references / interchanges with the following part numbers:
4106, X22GPR-U, X24GPR-U, 98061-58616, 9806158616, 4730, DPR8Z
Frequently Asked Questions
Is this the right XR400R spark plug for a 1996-2004 Honda XR400R 397cc?
Yes. The NGK DPR8Z is listed for the 1996-2004 Honda XR400R 397cc, and that engine takes one plug.
Can I use the NGK DPR8Z on an engine with factory precious metal plugs?
No, it is not recommended. The NGK DPR8Z is best for engines with factory nickel alloy plugs, not ones fitted with factory precious metal plugs.
What thread size and gap does the DPR8Z have?
This spark plug has an M12 - 1.25 thread and a 0.028 in (0.7 mm) gap, with a 0.750 in (19.0 mm) reach.
What is the center electrode of the DPR8Z made of?
The center electrode is a nickel alloy, and the core is solid 98% pure copper. The insulator is high grade alumina silicate ceramic.
Is the NGK DPR8Z sold one plug at a time?
Yes. This listing is one spark plug, and the fitment gives a quantity of one for each engine.
