NGK SPARK PLUG NGK-YR5
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The NGK YR5 is a genuine NGK V-Power resistor spark plug, also identified by stock number 7052. It is designed to deliver reliable ignition performance with NGK's V-groove center electrode design and is used in selected marine and other engine applications where the exact plug specification is required.
Key Features
- Genuine NGK YR5 spark plug
- NGK stock number 7052
- V-Power design for improved ignitability
- Resistor spark plug
- Common supportable specifications include 14 mm thread, 0.460 in. reach, and tapered seat
Engine Compatibility
Used in selected marine and other engine applications. Exact compatibility depends on the engine manufacturer's required spark plug specification, so this plug should be matched by application, engine model, and engine serial number where applicable.
Serial Number Fitment Notice
Spark plug fitment can vary by engine family, cylinder-head design, seat style, and ignition specification. Always confirm compatibility by engine model, serial number, and the manufacturer's recommended spark plug reference before ordering.
When This Part Needs Replacement
Replace this spark plug during scheduled tune-up intervals, when misfire symptoms appear, when starting becomes harder than normal, or when inspection shows fouling, worn electrodes, or inconsistent spark performance.
Installation Notes
Install only after confirming the correct plug specification for the application. Because this plug is commonly referenced as a resistor, tapered-seat design with specific thread and reach dimensions, it should be matched carefully to the engine's required plug type before installation.
Alternate/Superseded Part Numbers
Current references identify this plug as YR5, with NGK stock number 7052.
Parts Desk Insight
Spark plugs are easy to treat as generic, but small differences in reach, seat style, and heat range matter. Matching the exact plug code is the easiest way to avoid rough running, hard starts, and repeat tune-up work.
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.