--- product_id: 149710836 title: "LOCTITE 243 Threadlocker for Automotive: Medium-Strength, Oil Tolerant, High-Temperature, Anaerobic, General Purpose | Blue, 36 ml Red Bottle (PN: 1330906)" brand: "loctite" price: "2958CFA" currency: XOF in_stock: false reviews_count: 5 url: https://www.desertcart.sn/products/149710836-loctite-243-threadlocker-for-automotive-medium-strength-oil-tolerant-high store_origin: SN region: Senegal --- # High-temp tolerance up to ~360°C Medium-strength bond for 6-20mm fasteners Oil-tolerant, works on oily surfaces LOCTITE 243 Threadlocker for Automotive: Medium-Strength, Oil Tolerant, High-Temperature, Anaerobic, General Purpose | Blue, 36 ml Red Bottle (PN: 1330906) **Brand:** loctite **Price:** 2958CFA **Availability:** ❌ Out of Stock ## Summary > 🔩 Lock it tight, service it easy — the pro’s choice for unstoppable fasteners! ## Quick Answers - **What is this?** LOCTITE 243 Threadlocker for Automotive: Medium-Strength, Oil Tolerant, High-Temperature, Anaerobic, General Purpose | Blue, 36 ml Red Bottle (PN: 1330906) by loctite - **How much does it cost?** 2958CFA with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/149710836-loctite-243-threadlocker-for-automotive-medium-strength-oil-tolerant-high) ## Best For - loctite enthusiasts ## Why This Product - Trusted loctite brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Medium-Strength, Removable:** Locks fasteners firmly yet allows disassembly with standard hand tools—perfect for maintenance and servicing. - • **Versatile Application Range:** Ideal for bolts and nuts from 1/4" to 3/4" (6mm to 20mm) across engine parts, brakes, alternators, and more. - • **Surface-Insensitive Adhesion:** Bonds securely on all metals including stainless steel, aluminum, and plated surfaces—even with minor oil contamination. - • **Rapid Curing, Long-Lasting Hold:** Sets in just 10 minutes and fully cures within 24 hours to prevent loosening from shock and vibration. - • **Trusted by Pros, Specified by OEMs:** Engineered and lab-tested for professional automotive use, ensuring race-grade reliability. ## Overview LOCTITE 243 is a medium-strength, blue threadlocker designed for automotive and general-purpose use. It offers superior adhesion on all metals, including oily and passive surfaces, withstanding temperatures up to 360°C. Trusted by OEMs and race teams alike, it cures quickly and allows easy disassembly with hand tools, making it ideal for maintenance on fasteners sized 6mm to 20mm. ## Description LOCTITE 243 is a general purpose, medium strength, primerless, blue threadlocker with improved oil tolerance. For fasteners between 1/4" to 3/4" (6mm to 20mm). Parts can be separated using hand tools.LOCTITE 243 is a general purpose threadlocker that provides a medium strength bond. This product works on all metals, including passive substrates such as stainless steel, aluminum and plated surfaces. It is proven to be tolerant of minor contamination STEADFAST ADHESIONLOCTITE 243 is designed for the locking and sealing of threaded fasteners which require normal disassembly with standard hand tools. The product cures when confined in the absence of air between close fitting metal surfaces and prevents loosening and leakage from shock and vibration. Suitable for applications on less active substrates such as plated surfaces, where disassembly with hand tools is required for servicing.LOCTITE automotive aftermarket products are not just OEM-specified, they are also designed by auto manufacturers and lab tested. Engines of nearly every professional race car are assembled and maintained with LOCTITE brand adhesives, sealants, gasket makers, and coatings. Whether gasoline or diesel, from bolts and gaskets to cooling lines and core plugs, Henkel products are used to seal, secure, and repair vehicle components. Review: good - good Review: Good stuff, really works better than the 242 on stainless and oily environment - The 243 formula really makes a difference when used on stainless and other corrosion resistant metals, even with oil or grease contamination, like that you often get in tap holes of anything mechanical like engine, bikes, gears and sprockets, motors, etc. Using the 242, I often observed very poor, if not total lack of thread locking, when using stainless fasteners or in a shop environment, anywhere around greasy or oily parts. With the 243, I still yet to have a failure in thread locking and I've been using it for over a year now. 36mL is a lot cheaper than the 6mL tube and no, it won't go to waste because you used it once a year ago and are afraid it's no good anymore. Simply cap it off properly and it's gonna remain usable for a very long time. Don't forget to shake it up before using it that day, just like you would shake and stir your paint before painting. ## Features - Causes serious eye irritation. - Causes skin irritation. - May cause an allergic skin reaction. - OEM SPECIFIED. Our LOCTITE automotive aftermarket products are not just OEM-specified, they are also designed by auto manufacturers and lab tested. Wherever engines are being built or repaired, LOCTITE is trusted by professionals. - RELIABLE ADHESION. Works on all metals, including passive substrates (e.g. stainless steel, aluminum, plated surfaces) with improved oil tolerance. - REMOVABLE WITH HAND TOOLS. Well suited for automotive and other applications where maintenance or servicing is required. - MULTI-PURPOSE APPLICATIONS. Rocker studs, rocker adjustment bolts, bolts on valve and cam covers, oil pans, disc brake calipers, intakes and alternators, and pulley assemblies. Ideal for all nut and bolt applications ¼" to ¾" (6 mm to 20 mm). - CONVENIENT CURING. Sets in just 10 minutes & is fully cured in 24 hours. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B005M1RI84 | | Best Sellers Rank | 206,004 in Automotive ( See Top 100 in Automotive ) 832 in Fillers, Adhesives & Sealants 4,858 in Vehicle Oils & Fluids | | Brand | Loctite | | Colour | Blue | | Compatible Material | Metal | | Container Type | Can | | Customer Reviews | 4.8 out of 5 stars 651 Reviews | | Full Cure Time | 24 Hours | | Global Trade Identification Number | 00079340439092 | | Included Components | (1) Threadlocker 243 Surface Insensitive-Medium Strength Bottle, Blue, 36-ml | | Item Form | Bottle | | Item Package Quantity | 1 | | Item Type Name | Loctite 1330906 Threadlocker 243 Surface Insensitive-Medium Strength Bottle, Blue, 36-ml | | Item Volume | 36 Millilitres | | Item Weight | 0.18 Pounds | | Item form | Bottle | | Manufacturer | Loctite | | Manufacturer Part Number | 1330906 | | Material | Aluminum , Stainless Steel | | Model Number | 1330906 | | Other Special Features of the Product | Surface insensitive, suitable for fasteners between 1/4-Inch to 3/4-Inch | | Special feature | Surface insensitive, suitable for fasteners between 1/4-Inch to 3/4-Inch | | Specific Uses For Product | automotive maintenance and repair, parts requiring threadlocking and sealing, medium-strength applications | | Specific uses for product | automotive maintenance and repair, parts requiring threadlocking and sealing, medium-strength applications Specific uses for product automotive maintenance and repair, parts requiring threadlocking and sealing, medium-strength applications See more | | UPC | 079340439092 | | Unit Count | 1.22 millilitre | | Viscosity Level | Medium | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** Loctite - **Item form:** Bottle - **Material:** Aluminum,Stainless Steel - **Special feature:** Surface insensitive, suitable for fasteners between 1/4-Inch to 3/4-Inch ## Images ![LOCTITE 243 Threadlocker for Automotive: Medium-Strength, Oil Tolerant, High-Temperature, Anaerobic, General Purpose | Blue, 36 ml Red Bottle (PN: 1330906) - Image 1](https://m.media-amazon.com/images/I/71vHzZz7TEL.jpg) ![LOCTITE 243 Threadlocker for Automotive: Medium-Strength, Oil Tolerant, High-Temperature, Anaerobic, General Purpose | Blue, 36 ml Red Bottle (PN: 1330906) - Image 2](https://m.media-amazon.com/images/I/71IxZ6TLZBL.jpg) ![LOCTITE 243 Threadlocker for Automotive: Medium-Strength, Oil Tolerant, High-Temperature, Anaerobic, General Purpose | Blue, 36 ml Red Bottle (PN: 1330906) - Image 3](https://m.media-amazon.com/images/I/81twwYD8Q4L.jpg) ![LOCTITE 243 Threadlocker for Automotive: Medium-Strength, Oil Tolerant, High-Temperature, Anaerobic, General Purpose | Blue, 36 ml Red Bottle (PN: 1330906) - Image 4](https://m.media-amazon.com/images/I/715kPRRX+IL.jpg) ![LOCTITE 243 Threadlocker for Automotive: Medium-Strength, Oil Tolerant, High-Temperature, Anaerobic, General Purpose | Blue, 36 ml Red Bottle (PN: 1330906) - Image 5](https://m.media-amazon.com/images/I/71CcTL4+EgL.jpg) ## Questions & Answers **Q: is there a loctite that resists gasoline ?** A: Most of our Loctite anaerobic sealants and threadlockers will resist gasoline once they're fully cured. The right product will depend on your application requirements. Please call 1-800-LOCTITE (562-8483) to receive a product recommendation from one of our engineers. **Q: How do I open the Loctite 243 bottle?** A: You simply twist the cap and it should open. **Q: Is this good to use on battery cable bolts?** A: Yes this can be used on the threads. Loctite 243 is a plastic so keep it off the post where good electrically conductive contact is required. I am thinking a car battery here. If this is a different design and IF THIS THREADED ASSEMBLY REQUIRES ELECTRICALLY CONDUCTIVY DO NO USE OUR PLASTIC THREADLOCKER IT WILL INSULATE AND GENERATE RESISTANCE. **Q: Can this still be effective on a bolt that is threaded, left to sit, and then threaded again to torque spec?** A: Left for set how long? When you remove the bolt, if it's still wet then yes, but I would wipe it off and reapply because I would want a thicker application for a tighter bond. ## Customer Reviews ### ⭐⭐⭐⭐⭐ good *by Y***O on 21 October 2021* good ### ⭐⭐⭐⭐⭐ Good stuff, really works better than the 242 on stainless and oily environment *by D***R on 21 September 2015* The 243 formula really makes a difference when used on stainless and other corrosion resistant metals, even with oil or grease contamination, like that you often get in tap holes of anything mechanical like engine, bikes, gears and sprockets, motors, etc. Using the 242, I often observed very poor, if not total lack of thread locking, when using stainless fasteners or in a shop environment, anywhere around greasy or oily parts. With the 243, I still yet to have a failure in thread locking and I've been using it for over a year now. 36mL is a lot cheaper than the 6mL tube and no, it won't go to waste because you used it once a year ago and are afraid it's no good anymore. Simply cap it off properly and it's gonna remain usable for a very long time. Don't forget to shake it up before using it that day, just like you would shake and stir your paint before painting. ### ⭐⭐⭐⭐⭐ Bueno *by A***Z on 4 February 2020* Muy buen producto. Les aconsejo agitarlo y al final sacudirlo hacia la base, con la punta hacia arriba ya que de lo contrario la diferencia de presión de la burbuja de aire dentro del resilience puede hacer que brote el contenido. En mi caso el producto fue algo espeso y tardó en asentarse. Cumple su función a la perfección. NOTA Cuenta con una indicación de ser posible generador de cancer . ## Frequently Bought Together - LOCTITE 243 Automotive Threadlocker Blue - Medium Strength Thread Lock, General Purpose, Oil Tolerant - 36 ml, 1 Pack - Loctite 271 Automotive Threadlocker Red - High Strength Thread Lock, Fluorescent, Heavy-Duty, Works on All Metals - 36 ml, 1 Pack - Loctite 272 Automotive Threadlocker Red – High Temp Thread Lock, Heavy-Duty High Strength Applications, Works on All Metals - 36 ml, 1 Pack --- ## 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.sn/products/149710836-loctite-243-threadlocker-for-automotive-medium-strength-oil-tolerant-high](https://www.desertcart.sn/products/149710836-loctite-243-threadlocker-for-automotive-medium-strength-oil-tolerant-high) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-07-21*