---
product_id: 4236533
title: "10121 SAE 75W-140 Synthetic Gear Oil/Transmission and Differential Lube - 1 Quart"
brand: "lucas oil"
price: "¥9571"
currency: JPY
in_stock: true
category: "Lucas Oil"
url: https://www.desertcart.jp/products/4236533-10121-sae-75w-140-synthetic-gear-oil-transmission-and-differential
store_origin: JP
region: Japan
---

# Reduces gear noise & extends bearing life High-temp stability keeps lubricity intact SAE 75W-140 viscosity for extreme performance 10121 SAE 75W-140 Synthetic Gear Oil/Transmission and Differential Lube - 1 Quart

**Brand:** lucas oil
**Price:** ¥9571
**Availability:** ✅ In Stock

## Summary

> ⚙️ Shift into the future with Lucas Oil’s ultra-slick synthetic gear lube!

## Quick Answers

- **What is this?** 10121 SAE 75W-140 Synthetic Gear Oil/Transmission and Differential Lube - 1 Quart by lucas oil
- **How much does it cost?** ¥9571 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/4236533-10121-sae-75w-140-synthetic-gear-oil-transmission-and-differential)

## 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

- • **Trusted Longevity:** Proven to protect bearings and gears for 10,000+ miles without breakdown
- • **Noise-Reducing Additives:** Drive smoother with less gear chatter and whisper-quiet operation
- • **Heat-Resistant Performance:** Maintains peak lubricity even under extreme temperatures
- • **Ultra-Slick Synthetic Formula:** Experience frictionless power with every shift
- • **Heavy-Duty & High-Performance Ready:** Engineered for limited slip differentials and racing demands

## Overview

Lucas Oil 10121 SAE 75W-140 Synthetic Gear Oil is a premium, long-lasting lubricant designed for heavy-duty and high-performance vehicles. Its advanced additive package reduces gear noise, extends bearing life, and withstands high temperatures without losing lubricity. Ideal for limited slip differentials, this synthetic gear oil delivers reliable protection and smooth operation, making it a top choice for professionals and enthusiasts alike.

## Description

Lucas Pure Synthetic Gear Oils are super-slick, long lasting lubricants designed especially for heavy duty or high performance applications where regular gear lubricants just aren't good enough. They contain a special additive package that increases lubricity and insures less gear noise and longer bearing life. Designed to stand up to high temperatures without losing its lubricity. Excellent for use in limited slip differentials.

## Features

- Super-slick long lasting lubricant
- Insures less gear noise and longer bearing life
- Stands up to high temperatures while maintaining lubricity

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BCKWVE |
| Best Sellers Rank | #27,708 in Automotive ( See Top 100 in Automotive ) #4 in Heavy Duty Vehicle Oils #289 in Motor Oils |
| Brand Name | Lucas Oil |
| Container Type | Bottle |
| Customer Reviews | 4.8 4.8 out of 5 stars (826) |
| Global Trade Identification Number | 00049807101213, 10049807101210 |
| Included Components | 1x 1 Quart Bottle |
| Item Form | Oil |
| Item Type Name | gear oil |
| Item Weight | 2 pounds |
| Liquid Volume | 1 quarts |
| Manufacturer | LUCAS OIL |
| Material | Blend |
| Model Number | LUC10121 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Interchange Info | 10121 |
| Part Number | LUCA10121 |
| Recommended Uses For Product | auto racing |
| SAE J300 Viscosity Grade | 75W-140 |
| Specific Uses For Product | High performance transmissions |
| UPC | 049807801212 049807401214 |
| Unit Count | 32 Fluid Ounces |
| Viscosity | 75W-140 |

## Product Details

- **Brand:** Lucas Oil
- **Item Weight:** 2 pounds
- **Liquid Volume:** 1 quarts
- **Material:** Blend
- **Package Information:** Bottle

## Images

![10121 SAE 75W-140 Synthetic Gear Oil/Transmission and Differential Lube - 1 Quart - Image 1](https://m.media-amazon.com/images/I/61gA8zEIi4L.jpg)

## Available Options

This product comes in different **Item Package Quantity** options.

## Questions & Answers

**Q: so this can be used in rear axle and also in gear box? is that right ?**
A: I used it in the rear axle (which technically contains gears). You cannot use this in the transmission

**Q: Can use in worm gear saw?**
A: Can you be more specific to your use of the oil? Are you wanting to use to lubricant the tool? Or to use as a cutting lubricant?

**Q: Is this okay to use on a regular differential(non limited slip)?**
A: I believe so.

**Q: Can this be used on Differential 2021 toyota corolla manual??**
A: Yes

## Frequently Bought Together

- Lucas Oil 10121 SAE 75W-140 Synthetic Gear Oil/Transmission and Differential Lube - 1 Quart
- Lucas Oil 10047 SAE 75W-90 Synthetic Gear Oil/Transmission and Differential Lube - 1 Quart
- Lucas Oil 10122 Synthetic SAE 75W-140 Gear Oil - 1 Gallon

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**Shop now:** [https://www.desertcart.jp/products/4236533-10121-sae-75w-140-synthetic-gear-oil-transmission-and-differential](https://www.desertcart.jp/products/4236533-10121-sae-75w-140-synthetic-gear-oil-transmission-and-differential)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-07*