---
product_id: 245786305
title: "40790 H/D Primary Chain Case Oil - 1L"
brand: "lucas oil"
price: "$77.14"
currency: USD
in_stock: true
reviews_count: 6
category: "Lucas Oil"
url: https://www.desertcart.us/products/245786305-40790-h-d-primary-chain-case-oil-1l
store_origin: US
region: United States of America
---

# High heat dissipation OEM standard compliance Extended chain & sprocket life 40790 H/D Primary Chain Case Oil - 1L

**Brand:** lucas oil
**Price:** $77.14
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your ride cool and clutch smoother than ever!

## Quick Answers

- **What is this?** 40790 H/D Primary Chain Case Oil - 1L by lucas oil
- **How much does it cost?** $77.14 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/245786305-40790-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

- • **OEM-Approved Formula:** Meets or exceeds all manufacturer requirements
- • **Smooth Clutch Action:** Minimizes slippage for seamless gear shifts
- • **Versatile Application:** Perfect for sportster trans/primary oil needs
- • **Prolonged Component Life:** Extends chain, sprocket, and clutch durability
- • **Ultimate Heat Management:** Reduces clutch plate heat for peak performance

## Overview

Lucas Oil 40790 H/D Primary Chain Case Oil is a premium 1L lubricant engineered for heavy-duty, high-performance motorcycle applications. Its advanced formula efficiently dissipates heat from clutch and friction plates, ensuring longer clutch life and smoother shifting. Meeting or exceeding OEM standards, it also extends the lifespan of chains and sprockets, making it the go-to choice for riders demanding reliability and peak performance.

## 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.

Review: Leaked inside the box - Over 200ml missing and leaked all inside the box , couldn't return it as I desperately needed some not happy
Review: This stuff is legit. I recently had a clutch cable break. I was running formula+ in the primary. I installed this when I installed the new cable as the clutch was slipping prior. Shifting into first is smooth, and primary noise is minimal at idle. So far it’s doing great. Maybe 200ish miles.

## 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 |
| Best Sellers Rank | 246,613 in Automotive ( See Top 100 in Automotive ) 85 in Motorbike Chain Oil |
| Brand | Lucas Oil |
| Customer Reviews | 4.8 4.8 out of 5 stars (819) |
| Date First Available | 7 Aug. 2012 |
| Item Weight | 397 g |
| Item model number | 10790 |
| Manufacturer | Lucas Oil Products Inc |
| Manufacturer part number | 10790 |
| Model | Lucas Oil 40790 H/D Primary Chain Case Oil - 1L |
| Product Dimensions | 6.15 x 11.05 x 22.86 cm; 397 g |
| Viscosity | 50 |

## Product Details

- **Brand:** Lucas Oil
- **Liquid volume:** 1 Quarts
- **Package information:** Bottle
- **Vehicle service type:** Motorcycle
- **Viscosity:** 50

## Images

![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

## Customer Reviews

### ⭐ Leaked inside the box
*by T***M on 24 May 2025*

Over 200ml missing and leaked all inside the box , couldn't return it as I desperately needed some not happy

### ⭐⭐⭐⭐⭐ Review
*by M***L on 23 October 2025*

This stuff is legit. I recently had a clutch cable break. I was running formula+ in the primary. I installed this when I installed the new cable as the clutch was slipping prior. Shifting into first is smooth, and primary noise is minimal at idle. So far it’s doing great. Maybe 200ish miles.

### ⭐⭐⭐⭐⭐ Review
*by A***. on 19 May 2022*

Lucas es una excelente marca de lubricantes. Usé éste producto para una motocicleta Harley Davidson con los resultados esperados, muy confiable.

## 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.us/products/245786305-40790-h-d-primary-chain-case-oil-1l](https://www.desertcart.us/products/245786305-40790-h-d-primary-chain-case-oil-1l)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-21*