--- product_id: 98016836 title: "Spark Plug 91909 Central Electrode - Iridium & 1 Ground Electrode & with Flat Hold-Seal Key Opening: 16 mm" brand: "ngk" price: "264 kr" currency: DKK in_stock: true reviews_count: 13 category: "Ngk" url: https://www.desertcart.dk/products/98016836-spark-plug-91909-central-electrode-iridium-and-1-ground-electrode store_origin: DK region: Denmark --- # Long service life for fewer replacements Iridium core for superior spark Cleaner combustion, less emissions Spark Plug 91909 Central Electrode - Iridium & 1 Ground Electrode & with Flat Hold-Seal Key Opening: 16 mm **Brand:** ngk **Price:** 264 kr **Availability:** ✅ In Stock ## Summary > ⚡ Ignite your ride with NGK’s precision spark – power, performance, and longevity in one plug! ## Quick Answers - **What is this?** Spark Plug 91909 Central Electrode - Iridium & 1 Ground Electrode & with Flat Hold-Seal Key Opening: 16 mm by ngk - **How much does it cost?** 264 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/98016836-spark-plug-91909-central-electrode-iridium-and-1-ground-electrode) ## Best For - ngk enthusiasts ## Why This Product - Trusted ngk brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted Legacy:** Backed by NGK’s 90+ years of innovation and reliability in spark plug technology - • **Extended Durability:** Engineered for a longer lifespan, reducing maintenance frequency - • **Optimized Combustion:** Ensures efficient fuel burn for smoother rides and lower emissions - • **Vehicle-Specific Fit:** Perfectly tailored for models like the 2014 Honda Forza NSS300, guaranteeing hassle-free installation - • **Precision Iridium Core:** Delivers unmatched ignitability and consistent performance ## Overview The NGK LMAR8BI-9 spark plug features a high-performance iridium core designed for superior ignitability and extended service life. Engineered for vehicle-specific fitment, including the 2014 Honda Forza NSS300, it promotes cleaner combustion and smoother power delivery. Backed by NGK’s nearly century-long expertise, this spark plug offers reliable, efficient performance that reduces harmful emissions and maintenance frequency. ## Description Standard NGK series spark plugs are designed for stock replacement applications. Equipped with a hot spark, they offer a very good combustion, thus ensuring high performance, producing less harmful emissions. Review: Fits 2014 Honda Forza NSS300, contrary to desertcart confirmed fit! - Replaced the NGK LMAR8A-9S (6817) with this and the difference in smoothness and power delivery is tangible. Has the correct Honda spec washer of the LMAR8A-9S (6817), WHICH IS NOT THE LMAR8A-9 (4313) listed both in the 2014 Forza owner's manual and what desertcart confirmed fit says is the correct plug. Spent hours researching why the 4313 plug wouldn't start my bike before I stumbled across this subtle but significant difference. Yeah, for a spark plug it's kinda pricey, but one plug in my bike is not a wallet breaker, and the longer replacement interval and better performance make it a bargain. Review: Todavía no lo pruebo pero llego en perfectas condiciones ## Features - Spark Plug 91909 LMAR8BI-9 SAE Fixed IR - NGK is the world's leading manufacturer of spark plugs - Modern production facilities and large investments in research and development make the NGK spark plug so successful. - NGK has lit sparks since 1930 - High performance, excellent ignitability and long service life ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B06X9CKC1N | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #163,339 in Automotive ( See Top 100 in Automotive ) #1,085 in Automotive Replacement Spark Plugs | | Brand Name | NGK | | Compatible with Vehicle Type | Vehicle Specific | | Core Material | Iridium | | Customer Reviews | 4.7 4.7 out of 5 stars (147) | | EU Spare Part Availability Duration | 10 Years | | Gap Size | 16 Millimeters | | Global Trade Identification Number | 00087295919095 | | Included Components | Spark Plug | | Item Type Name | CANDLES | | Item Weight | 0.02 Kilograms | | Manufacturer | Ngk | | Manufacturer Part Number | LMAR8BI-9 | | Model Number | LMAR8BI-9 [ 91909 ] | | OEM Equivalent Part Number | LMAR8BI-9 | | Thread Size | RM | | Top Material Type | Iridium | | UPC | 779420925391 087295919095 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** NGK - **Core Material:** Iridium - **Thread Size:** RM - **Top Material Type:** Iridium - **Vehicle Service Type:** Vehicle Specific ## Images ![Spark Plug 91909 Central Electrode - Iridium & 1 Ground Electrode & with Flat Hold-Seal Key Opening: 16 mm - Image 1](https://m.media-amazon.com/images/I/81gzo4iJZRL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fits 2014 Honda Forza NSS300, contrary to Amazon confirmed fit! *by N***W on July 30, 2025* Replaced the NGK LMAR8A-9S (6817) with this and the difference in smoothness and power delivery is tangible. Has the correct Honda spec washer of the LMAR8A-9S (6817), WHICH IS NOT THE LMAR8A-9 (4313) listed both in the 2014 Forza owner's manual and what Amazon confirmed fit says is the correct plug. Spent hours researching why the 4313 plug wouldn't start my bike before I stumbled across this subtle but significant difference. Yeah, for a spark plug it's kinda pricey, but one plug in my bike is not a wallet breaker, and the longer replacement interval and better performance make it a bargain. ### ⭐⭐⭐⭐⭐ Review *by M***A on February 26, 2026* Todavía no lo pruebo pero llego en perfectas condiciones ### ⭐⭐⭐⭐⭐ ⭐⭐⭐⭐⭐ “The Spark Plug That Lit a Fire Under My Engine (and My Expectations)” *by T***N on July 4, 2025* You ever replace a spark plug and actually feel your soul ignite? No? Then you haven’t met the NGK Lazer Iridium—the plug so elite, it doesn’t start engines, it summons horsepower from the netherworld. Right out of the box, it radiates superiority. I mean, come on—Lazer? Iridium? This isn’t a spark plug, it’s a Marvel weapon disguised as engine tech. I half-expected Tony Stark to pop out and install it for me. But nope—just me, my wrench, and the sudden feeling that my ride was about to light up the world like Times Square on caffeine. Once installed? Instant combustion bliss. Cold starts? Now hotter than my ex’s temper. Throttle response? So crisp it deserves its own ASMR channel. Idle? Smoothed out like it just got a Swedish massage. My engine hasn’t felt this fired up since factory testing. Let’s not forget that iridium isn’t just a fancy name. This metal is rarer than a sincere tweet and tougher than a $2 steak. It laughs at wear, scoffs at carbon, and sparks joy (and combustion) like it’s on a mission from the ignition gods. Old plug? It’s in the trash now, right where it belongs—grounded for life. That thing used to “spark” but in a sad, wheezing birthday candle kind of way. The NGK? It ignited my faith in internal combustion. My engine now purrs like it just got a promotion. Bottom line: if you’re still running anything else, you’re shorting out your own joyride. This plug didn’t just complete the circuit—it set my whole driving experience ablaze. Five stars. Would spark again. ## Frequently Bought Together - CANDLE NGK LMAR8BI-9 - NGK (4908 LMAR7A-9 Standard Spark Plug, Pack of 1 - K&N Motorcycle Oil Filter: High Performance, Premium, Designed to be used with Synthetic or Conventional Oils: Fits Select Honda, Kawasaki, Triumph, Yamaha Motorcycles, KN-204-1 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.dk/products/98016836-spark-plug-91909-central-electrode-iridium-and-1-ground-electrode](https://www.desertcart.dk/products/98016836-spark-plug-91909-central-electrode-iridium-and-1-ground-electrode) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-23*