--- product_id: 465572583 title: "USA 12.9 LS Transmission Flywheel Bolts Set Flexplate Kit LS1 LS3 LS2 Crankshaft 551926" brand: "ict billet" price: "278.75 DT" currency: TND in_stock: true reviews_count: 5 category: "Ict Billet" url: https://www.desertcart.tn/products/465572583-usa-12-9-ls-transmission-flywheel-bolts-set-flexplate-kit store_origin: TN region: Tunisia --- # Grade 12.9 ultra-strong bolts BP coated corrosion defense Made in USA precision USA 12.9 LS Transmission Flywheel Bolts Set Flexplate Kit LS1 LS3 LS2 Crankshaft 551926 **Brand:** ict billet **Price:** 278.75 DT **Availability:** ✅ In Stock ## Summary > 🔩 Lock in power with bolts that never quit! ## Quick Answers - **What is this?** USA 12.9 LS Transmission Flywheel Bolts Set Flexplate Kit LS1 LS3 LS2 Crankshaft 551926 by ict billet - **How much does it cost?** 278.75 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/465572583-usa-12-9-ls-transmission-flywheel-bolts-set-flexplate-kit) ## Best For - ict billet enthusiasts ## Why This Product - Trusted ict billet brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **No Washers Needed:** Flanged head design eliminates the need for washers, simplifying installation and improving torque consistency. - • **Unmatched Strength:** Grade 12.9 bolts deliver 20%+ more tensile strength than factory 10.9 bolts for ultimate durability. - • **Proudly Made in the USA:** Crafted domestically by ICT Billet, supporting quality manufacturing and fast delivery. - • **Corrosion-Proof Confidence:** BP coating prevents thread seizing and rust, ensuring long-lasting reliability under extreme conditions. - • **Precision Fit for LS Engines:** Custom M11-1.5 thread, 23.5mm length bolts engineered specifically for GM LS1, LS2, LS3, LS6, and LS7 crankshafts. ## Overview This USA-made set of six Grade 12.9 high-strength LS flexplate bolts is custom engineered for GM LS series engines with 6-bolt crankshafts. Featuring a corrosion-resistant BP coating and flanged heads that eliminate washers, these bolts provide superior durability and precision fitment for professional-grade engine builds and repairs. ## Description LS Flexplate Bolts SetFits: GM LS1, LS2, LS3, LS6, and LS7 series engines (and many more) with 6 bolt CrankshaftsM11-1.5 thread, 23.5mm length (OEM length, measured underneath head)Package Includes: 6 bolts12.9 high strength bolts (factory bolts are 10.9 rated)Custom made for ICT in the USA! *Gen 5, LT and LSA engines use 8 bolt crankshafts (part number 551939) *LS9 engines require 9 bolt crankshafts Review: Fast delivery, worked for my application - Worked as advertised Review: Great replacement - Did a rear main seal job on my stock 05 Tahoe with a 5.3 and decided to replace the flywheel bolts. These worked perfectly. Make sure to torque and use loctite. ## Features - Made in the USA bolts - Heavy duty, high strength, grade 12.9 bolts - BP coated for long lasting corrosion protection and prevents threads from seizing - No washers needed with these flange head bolts - All ICT Billet metric flange bolts are custom made for us, right here in the USA ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07MG7QLDL | | Brand Name | ICT Billet | | Colour | Color | | Compatible Groove Diameter | 11 Millimeters | | Customer Reviews | 4.7 out of 5 stars 283 Reviews | | Drive System | Rear-Wheel Drive | | Exterior Finish | Textured | | Exterior finish | Textured | | Fastener Size | 11 millimeters | | Fastener Type | Flange Bolt | | Finish Types | Textured | | Grade Rating | Grade 12.9 | | Head Type | Hex | | Head style | Flanged | | Item Diameter | 11 Millimetres | | Item Dimensions | 7.6 x 7.6 x 2.5 centimetres | | Item Hardness | Grade 12.9 | | Manufacturer | ICT Billet | | Manufacturer Grade | Grade 12.9 | | Manufacturer Part Number | 551926 | | Manufacturer grade | Grade 12.9 | | Material | Alloy Steel , Aluminium | | Material Type | Alloy Steel, Aluminium | | Metal | Alloy Steel | | Number Of Items | 6 | | Number of Pieces | 6 | | Screw Head Style | Flanged | | Screw Point Style | Flanged | | Set Name | Single Set | | Set Screw Thread Type | Metric | | Size | M11 | | Thread Class | 3A | | Thread Coverage | Fully Threaded | | Thread Size | M11 | | Thread Style | Right Hand | | Thread Type | Metric | | Thread size | M11 | | UPC | 657814753495 | | Unit Count | 6.0 count | ## Product Details - **Exterior finish:** Textured - **Head style:** Flanged - **Manufacturer grade:** Grade 12.9 - **Material:** Alloy Steel, Aluminium - **Thread size:** M11 ## Images ![USA 12.9 LS Transmission Flywheel Bolts Set Flexplate Kit LS1 LS3 LS2 Crankshaft 551926 - Image 1](https://m.media-amazon.com/images/I/61Q6w4qfvFL.jpg) ![USA 12.9 LS Transmission Flywheel Bolts Set Flexplate Kit LS1 LS3 LS2 Crankshaft 551926 - Image 2](https://m.media-amazon.com/images/I/61r7IGl2QgL.jpg) ![USA 12.9 LS Transmission Flywheel Bolts Set Flexplate Kit LS1 LS3 LS2 Crankshaft 551926 - Image 3](https://m.media-amazon.com/images/I/61n5SjUwTZL.jpg) ![USA 12.9 LS Transmission Flywheel Bolts Set Flexplate Kit LS1 LS3 LS2 Crankshaft 551926 - Image 4](https://m.media-amazon.com/images/I/61OgLbtsagL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fast delivery, worked for my application *by D***2 on 13 June 2025* Worked as advertised ### ⭐⭐⭐⭐⭐ Great replacement *by D***K on 19 June 2026* Did a rear main seal job on my stock 05 Tahoe with a 5.3 and decided to replace the flywheel bolts. These worked perfectly. Make sure to torque and use loctite. ### ⭐⭐⭐⭐⭐ Awesome quality, as always with ICT. *by A***E on 31 August 2025* High quality product for my engine build. Anything from ICT is a great solution. They fit as expected and look like they are higher quality than the OEM boots. They function as you would expect. My flywheel is still attached. --- ## 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.tn/products/465572583-usa-12-9-ls-transmission-flywheel-bolts-set-flexplate-kit](https://www.desertcart.tn/products/465572583-usa-12-9-ls-transmission-flywheel-bolts-set-flexplate-kit) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-29*