--- product_id: 245786305 title: "Lucas Oil 40790 H/D Primary Chain Case Oil - 1L" brand: "lucas oil" price: "¥11261" currency: JPY in_stock: true category: "Lucas Oil" url: https://www.desertcart.jp/products/245786305-lucas-oil-40790-h-d-primary-chain-case-oil-1l store_origin: JP region: Japan --- # High heat dissipation OEM standard compliance Optimized for motorcycle primary chains Lucas Oil 40790 H/D Primary Chain Case Oil - 1L **Brand:** lucas oil **Price:** ¥11261 **Availability:** ✅ In Stock ## Summary > 🔥 Ride Cooler, Shift Smoother, Last Longer 🏍️ ## Quick Answers - **What is this?** Lucas Oil 40790 H/D Primary Chain Case Oil - 1L by lucas oil - **How much does it cost?** ¥11261 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/245786305-lucas-oil-40790-h-d-primary-chain-case-oil-1l) ## Best For - lucas oil enthusiasts ## Why This Product - Trusted lucas oil brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smooth Operator:** Reduces clutch slippage for seamless gear shifts and enhanced ride control. - • **Built to OEM Specs:** Meets or exceeds all original equipment manufacturer requirements for reliability. - • **Versatile Performance:** Perfect for sportster trans/primary oil applications, ensuring broad compatibility. - • **Chain & Sprocket Savior:** Lubricates and protects your drivetrain, extending chain and sprocket lifespan. - • **Stay Cool Under Pressure:** Advanced heat transfer formula keeps clutch plates cooler for longer life. ## Overview Lucas Oil 40790 H/D Primary Chain Case Oil is a premium 1L lubricant engineered for heavy-duty motorcycle use. Its specialized formula excels at dissipating heat from clutch and friction plates, reducing slippage and wear. Designed to meet or exceed OEM standards, it ensures longer clutch life, smoother shifting, and extended chain and sprocket durability—making it the go-to choice for performance-focused riders. ## Description Lucas HD Primary Chaincase Oil is a blend of easy flowing base oils and a Lucas additive package designed to carry away more heat from the clutch plates and friction plates. This assures a longer more trouble-free clutch life. Expect a smooth clutch action, less slippage, longer chain and sprocket life and a much longer oil life. Can be used in sportster trans/primary oil. Remember This product is a heat transfer fluid for the clutch as well as a lubricant for the chain and sprockets. ## Features - Designed for heavy duty high performance situations - Designed to reduce the heat from clutch plates and friction plates - Meets or exceeds all OEM requirements ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B005MZD0NM | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | 114,929 in Automotive ( See Top 100 in Automotive ) 41 in Motorbike Chain Oil | | Brand Name | Lucas Oil | | Compatible with Vehicle Type | Motorcycle | | Container Type | Bottle | | Customer Reviews | 4.8 4.8 out of 5 stars (969) | | Global Trade Identification Number | 00049807107901 | | Included Components | 1 Bottle | | Item Type Name | Motorcycle Oil | | Item Weight | 921 g | | Liquid Volume | 1 Quarts | | Manufacturer | Lucas Oil Products Inc | | Manufacturer Part Number | 10790 | | Manufacturer Warranty Description | No Warranty | | Model Number | 10790 | | Number of Packs | 1 | | SAE J300 Viscosity Grade | 10W | | Size | 1 Litre | | UPC | 049807407902 049807107901 | | Unit Count | 1000.0 millilitre | ## Product Details - **Brand:** Lucas Oil - **Liquid volume:** 1 Quarts - **Package information:** Bottle - **SAE J300 Viscosity Grade:** 10W - **Vehicle service type:** Motorcycle ## Images ![Lucas Oil 40790 H/D Primary Chain Case Oil - 1L - Image 1](https://m.media-amazon.com/images/I/51b96r6izAL.jpg) ## Questions & Answers **Q: This is a lubricant right? Description its not.** A: All primary chaincase oil is PRIMARILY used to cool the clutch. It is also a lubricant for the chain etc. But it's primary function is to cool the clutch. That is what the statement in the add is referencing. Yes, it lubricates the primary chain and more. This is all I use in 5 Harleys, love this stuff. I use all Lucas specific oils in all 3 Harley holes. **Q: Can i use this in my primary on my 2014 dyna** A: Yes, any year primary. Better clutch action and less gear clunk. I run it in my 2018 Lowrider. **Q: Is is suitable for 2016 hd sportster xl1200x forty eight?** A: Yes **Q: So i can. in primary of my 2013 road king?** A: if you have a 3-hole bike yes, engine oil hole, primary oil hole, and transmission oil hole ## Frequently Bought Together - Lucas Oil 10790 Primary Chaincase Oil - 1 Quart - Lucas Oil 10791 Synthetic SAE 75W-140 V-Twin Gear Oil - 1 Quart - K&N Motorcycle Oil Filter: High Performance, Premium, Designed to be used with Synthetic or Conventional Oils: Fits Select Harely Davidson Motorcycles, KN-171B --- ## 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.jp/products/245786305-lucas-oil-40790-h-d-primary-chain-case-oil-1l](https://www.desertcart.jp/products/245786305-lucas-oil-40790-h-d-primary-chain-case-oil-1l) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-27*