--- product_id: 315878068 title: "Spark Plug Iridium TT - 4705" brand: "denso" price: "€ 32.19" currency: EUR in_stock: true reviews_count: 5 category: "Denso" url: https://www.desertcart.ie/products/315878068-spark-plug-iridium-tt-4705 store_origin: IE region: Ireland --- # φ0.4mm Iridium center electrode Twin Tip design for max flame kernel 22 Nm tightening torque Spark Plug Iridium TT - 4705 **Brand:** denso **Price:** € 32.19 **Availability:** ✅ In Stock ## Summary > ⚡ Ignite your drive with precision and power! ## Quick Answers - **What is this?** Spark Plug Iridium TT - 4705 by denso - **How much does it cost?** € 32.19 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/315878068-spark-plug-iridium-tt-4705) ## Best For - denso enthusiasts ## Why This Product - Trusted denso brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Noise-Free Drive:** Built-in monolithic resistor eliminates electromagnetic interference for smooth electronics. - • **Optimized Fuel Economy:** Reduced spark voltage requirements improve ignitability, boosting MPG and throttle response. - • **Seamless Compatibility:** Designed with 14mm diameter and 26.5mm thread length for perfect OEM fit. - • **Precision Ignition Power:** Twin Tip electrodes ignite fuel faster, unlocking peak engine performance. - • **Durability Meets Efficiency:** Iridium and platinum alloys ensure long-lasting spark reliability under extreme conditions. ## Overview The Denso Iridium TT 4705 spark plug features a cutting-edge twin tip design with ultra-fine φ0.4mm iridium and 0.7mm platinum electrodes, delivering faster flame development and improved acceleration. Engineered with high melting point alloys and all-around laser welding, it guarantees durability and consistent performance. Its built-in resistor minimizes electronic noise, ensuring smooth operation and enhanced fuel efficiency, making it a top choice for professional-grade engine tuning. ## Description Denso Spark Plug Iridium TT - 4705 Review: Original. Great buy. Review: Great Spark Plugs! ## Features - IKBH20TT | Twin Tip Plug | Tightneing Torque (Nm): 22 | 3 - Earthed Electrode | Diameter (mm): 14 | Thread Length (mm): 26.5 - The Finest Twin Tip plug with improved acceletation, fuel economy and longevity compared to single tip plugs. The quenching effect has been decreased by forming the electrode into a double needle shape. As a result, the flame kernel rapidly develops and the engine’s power is drawn out to its maximum potential. DENSO IRIDIUM TT spark plugs have a φ0.4 mm iridium alloy center electrode and a 0.7 mm needle-type platinum alloy ground electrode. - The iridium tip is mounted with an “All-around Laser Welding” method that insures high reliability even under the most severe driving conditions. - Using DENSO’s exclusive iridium alloy having a very high melting point, the tip of the center electrode can be shaped very thin and fine, reducing spark voltage requirements and greatly improving ignitability. - All specification types include an embedded, highly reliable, monolithic resistor to eliminate electoromagnetic noise interference from all kinds of electronic devices. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00TPU9BWO | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #112,105 in Automotive ( See Top 100 in Automotive ) #654 in Automotive Performance Spark Plugs | | Brand | Denso | | Brand Name | Denso | | Compatible with Vehicle Type | UTV | | Core Material | Iridium | | Core material | Iridium | | Customer Reviews | 4.7 out of 5 stars 216 Reviews | | Gap Size | 1 Millimeters | | Global Trade Identification Number | 00042511047051 | | Included Components | Spark Plug Iridium TT | | Item Type Name | Spark Plug | | Item Weight | 52 Grams | | Manufacturer | Denso | | Manufacturer Part Number | IKBH20TT | | Model Number | IKBH20TT | | OEM Equivalent Part Number | DENS7 | | Thread Size | 14mm | | Thread size | 14mm | | Top Material Type | Iridium | | Top material type | Iridium | | UPC | 042511047051 | | Unit Count | 1 Count | | Vehicle service type | UTV | ## Product Details - **Brand:** Denso - **Core material:** Iridium - **Thread size:** 14mm - **Top material type:** Iridium - **Vehicle service type:** UTV ## Images ![Spark Plug Iridium TT - 4705 - Image 1](https://m.media-amazon.com/images/I/812UZ3IkwJL.jpg) ## Questions & Answers **Q: 2017 highlander v6 manual says i need (denso 3491) 0.031 gap, but amazon & rock auto says this denso 4705, 0.040 gap fits?** A: I can't honestly answer your question. I bought for a 2006 Lexis IS350. I've had no issues. **Q: Are these legit products?** A: Yes, very good original equipment plug in the Tacoma. Had mine in for over 45K now. No problems. **Q: Does it fit my 2018 toyota sienna xle?** A: Yes **Q: Will it fit a 2006 gs300 3.0L awd ?** A: Yes ## Customer Reviews ### ⭐⭐⭐⭐⭐ Original. Great buy. *by H***Y on 16 February 2026* ### ⭐⭐⭐⭐⭐ Great Spark Plugs! *by G***M on 9 February 2026* ### ⭐⭐⭐⭐⭐ Better than Bosch. *by V***A on 6 March 2026* ## Frequently Bought Together - Denso Spark Plug Iridium TT - 4705 - Permatex 22058 Dielectric Tune-Up Grease, 3oz. - High Performance Dielectric Grease Used To Protect Terminals, Spark Plugs, Wiring And Other Electrical Connections Against Salt, Dirt, And Corrosion - Permatex 80071 Anti-Seize Lubricant with Brush Top Bottle, 4 oz. --- ## 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.ie/products/315878068-spark-plug-iridium-tt-4705](https://www.desertcart.ie/products/315878068-spark-plug-iridium-tt-4705) --- *Product available on Desertcart Ireland* *Store origin: IE* *Last updated: 2026-05-04*