---
title: Engine
url: https://parts.cat.com/en/catcorp/category/engines
description: Discover the perfect balance of quality and affordability with Cat® engines, excavator engine parts, components, and accessories designed to provide high-performance solutions to keep your engine operating at its best.
---

# Engine

## Category

- [Air & Hydraulic Starting Systems (397)](https://parts.cat.com/en/catcorp/category/engine-air-hyd-starting-systems?page=1&sortBy=0)
- [Belts, Pulleys, & Vibration Dampers (1443)](https://parts.cat.com/en/catcorp/category/engine-belts-pulleys-vibration-dampers?page=1&sortBy=0)
- [Cooling System (13079)](https://parts.cat.com/en/catcorp/category/engine-cooling-system?page=1&sortBy=0)
- [Engine Components (14764)](https://parts.cat.com/en/catcorp/category/engine-components?page=1&sortBy=0)
- [Engine Filters & Fluids (8105)](https://parts.cat.com/en/catcorp/category/engine-filters-fluids?page=1&sortBy=0)
- [Engine Overhaul Kits (3)](https://parts.cat.com/en/catcorp/category/engine-overhaul-kits?page=1&sortBy=0)
- [Engine Transmission (24)](https://parts.cat.com/en/catcorp/category/engine-transmission?page=1&sortBy=0)
- [Engines & Blocks (9876)](https://parts.cat.com/en/catcorp/category/engine-blocks?page=1&sortBy=0)
- [Exhaust System (9761)](https://parts.cat.com/en/catcorp/category/engine-exhaust-system?page=1&sortBy=0)
- [FEAD & Housing Systems (1041)](https://parts.cat.com/en/catcorp/category/engine-fead-housing-systems?page=1&sortBy=0)

**1 - 16 of 1200 results**

### [1R-1808: Engine Oil Filter](https://parts.cat.com/en/catcorp/product/1R-1808)
![1R-1808: Engine Oil Filter](https://caterpillar.scene7.com/is/image/Caterpillar/CM20210720-5aae8-23d2a?fmt=webp&hei=384&wid=384)

Advanced Efficiency Engine Oil Filter
- **Cat**
- Diameter (in): 5.346
- Flow Direction: Out-to-In
- Length (in): 12.087
- Material: Nitrile / NBR / HNBR / XNBR Rubber, Cyanoacrylate Adhesive, Carbon Steel, Sealants / Adhesives Adhesive, Alloy Mixed: Metal, Alloy Steel, Nylon, 6, 6/12, 6/6 Plastic
- Efficiency Category: Advanced High Efficiency
- Filter Type: Spin-On

### [360-8960: Engine Fuel Filter Element](https://parts.cat.com/en/catcorp/product/360-8960)
![360-8960: Engine Fuel Filter Element](https://caterpillar.scene7.com/is/image/Caterpillar/CM20180403-40211-08659?fmt=webp&hei=384&wid=384)

Shop Cat® part engine filter 360-8960 offers ultra-high efficiency to protect your machine and keep it running smoothly.
- **Cat**
- Diameter (in): 3.209
- Flow Direction: Out-to-In
- Length (in): 6.102
- Efficiency Category: Advanced High Efficiency
- Filter Type: Cartridge

### [1R-0749: Secondary Fuel Filter](https://parts.cat.com/en/catcorp/product/1R-0749)
![1R-0749: Secondary Fuel Filter](https://caterpillar.scene7.com/is/image/Caterpillar/CM20180403-40956-30715?fmt=webp&hei=384&wid=384)

Advanced High Efficiency Fuel Filter
- **Cat**
- Diameter (in): 3.689
- Flow Direction: Out-to-In
- Length (in): 10.571
- Material: Carbon Steel, Other Mixed: Metal-Nonmetal
- Efficiency Category: Other
- Filter Type: Spin-On

### [7W-2326: Engine Oil Filter](https://parts.cat.com/en/catcorp/product/7W-2326)
![7W-2326: Engine Oil Filter](https://caterpillar.scene7.com/is/image/Caterpillar/CM20260505-6dff6-807d8?fmt=webp&hei=384&wid=384)

Standard Efficiency Engine Oil Filter
- **Cat**
- Diameter (in): 3.78
- Flow Direction: Out-to-In
- Length (in): 6.717
- Material: Carbon Steel
- Efficiency Category: Standard Efficiency
- Filter Type: Spin-On

### [377-6969: Standard Efficiency Engine Oil Filter](https://parts.cat.com/en/catcorp/product/377-6969)
![377-6969: Standard Efficiency Engine Oil Filter](https://caterpillar.scene7.com/is/image/Caterpillar/CM20180403-38738-36057?fmt=webp&hei=384&wid=384)

Cat® part engine filter 377-6969 offers standard efficiency to protect your machine's engine and keep it running smoothly.
- **Cat**
- Diameter (in): 3.661
- Flow Direction: Out-to-In
- Length (in): 3.661
- Material: Carbon Steel
- Filter Type: Spin-On
- Efficiency Category: Standard Efficiency

### [322-3155: Element Assembly](https://parts.cat.com/en/catcorp/product/322-3155)
![322-3155: Element Assembly](https://caterpillar.scene7.com/is/image/Caterpillar/CM20180403-39690-46986?fmt=webp&hei=384&wid=384)

Shop Cat® part 322-3155 engine oil filter that offers standard efficiency to protect your machine's engine and keep it running smoothly.
- **Cat**
- Diameter (in): 4.043
- Flow Direction: Out-to-In
- Length (in): 8.713
- Efficiency Category: Standard Efficiency
- Filter Type: Cartridge

### [462-1171: Standard Efficiency Engine Oil Filter](https://parts.cat.com/en/catcorp/product/462-1171)
![462-1171: Standard Efficiency Engine Oil Filter](https://caterpillar.scene7.com/is/image/Caterpillar/CM20180403-38928-45019?fmt=webp&hei=384&wid=384)

Standard Efficiency Engine Oil Filter
- **Cat**
- Diameter (in): 3.661
- Flow Direction: Out-to-In
- Length (in): 7.874
- Material: Carbon Steel
- Filter Type: Spin-On
- Efficiency Category: Advanced High Efficiency

### [326-1644: Fuel Water Separator](https://parts.cat.com/en/catcorp/product/326-1644)
![326-1644: Fuel Water Separator](https://caterpillar.scene7.com/is/image/Caterpillar/CM20240516-27b83-fddf5?fmt=webp&hei=384&wid=384)

Shop Cat® part 326-1644 for an advanced efficiency fuel and water separator designed to prolong the life of your Cat® machine.
- **Cat**
- Diameter (in): 4.264
- Length (in): 7.323
- Flow Direction: Out-to-In
- Material: Carbon Steel
- Efficiency Category: Advanced High Efficiency
- Filter Type: Spin-On

### [20R-6518: Cat® Reman Cylinder Head](https://parts.cat.com/en/catcorp/product/20R-6518)
![20R-6518: Cat® Reman Cylinder Head](https://caterpillar.scene7.com/is/image/Caterpillar/CM20220113-c8c5d-8ec41?fmt=webp&hei=384&wid=384)

Cat® G3600 A4 Reman Cylinder Head
- **Cat**
- Material: Sealants / Adhesives Adhesive

### [523-4987: Element-Separator](https://parts.cat.com/en/catcorp/product/523-4987)
![523-4987: Element-Separator](https://caterpillar.scene7.com/is/image/Caterpillar/CM20250731-157ae-26b6f?fmt=webp&hei=384&wid=384)

Find premium element separator and more with Cat. Explore reliable heavy-duty components like alternators and batteries for your needs.
- **Cat**
- Diameter (in): 4.043
- Length (in): 10.169
- Flow Direction: Out-to-In
- Material: Polyamide Plastic
- Efficiency Category: Ultra High Efficiency
- Filter Type: Cartridge

### [110-6326: Air Cleaner Primary Element](https://parts.cat.com/en/catcorp/product/110-6326)
![110-6326: Air Cleaner Primary Element](https://caterpillar.scene7.com/is/image/Caterpillar/CM20260505-36e8c-09864?fmt=webp&hei=384&wid=384)

Standard Efficiency Engine Air Filters are your best value for normal duty applications providing larger capacity and quick servicing.
- **Cat**
- Shape: Round
- Type: Primary
- Overall Height (in): 6.476
- Overall Width (in): 6.476
- Material: Carbon Steel
- Overall Depth (in): 14.016
- Media Type: Standard

### [479-4131: Water Separator Element](https://parts.cat.com/en/catcorp/product/479-4131)
![479-4131: Water Separator Element](https://caterpillar.scene7.com/is/image/Caterpillar/CM20250919-87b50-97967?fmt=webp&hei=384&wid=384)

Ultra High Efficiency Fuel Water Separator
- **Cat**
- Diameter (in): 3.209
- Length (in): 8.902
- Flow Direction: In-to-Out
- Material: Polyamide Plastic
- Efficiency Category: Ultra High Efficiency
- Filter Type: Cartridge

### [541-6956: Engine Fuel Filter](https://parts.cat.com/en/catcorp/product/541-6956)
![541-6956: Engine Fuel Filter](https://caterpillar.scene7.com/is/image/Caterpillar/CM20260505-014fc-28517?fmt=webp&hei=384&wid=384)

Standard Efficiency Fuel Filter
- **Cat**
- Diameter (in): 3.713
- Flow Direction: Out-to-In
- Length (in): 7.327
- Material: Polyester Plastic, Polyphthalamide (PPA) Plastic, Thermoplastic Plastic
- Efficiency Category: Ultra High Efficiency
- Filter Type: Spin-On

### [1R-0762: Engine Fuel Filter](https://parts.cat.com/en/catcorp/product/1R-0762)
![1R-0762: Engine Fuel Filter](https://caterpillar.scene7.com/is/image/Caterpillar/CM20180403-40565-05136?fmt=webp&hei=384&wid=384)

Advanced Efficiency Fuel Filters are designed to remove small contaminants; protecting your sensitive fuel injectors and saving you time and money from premature damage and repair.
- **Cat**
- Diameter (in): 3.681
- Length (in): 10.504
- Flow Direction: Out-to-In
- Material: Other Mixed: Metal-Nonmetal, Carbon Steel
- Efficiency Category: Advanced High Efficiency
- Filter Type: Spin-On

### [110-6331: Secondary Standard Efficiency Engine Air Filter](https://parts.cat.com/en/catcorp/product/110-6331)
![110-6331: Secondary Standard Efficiency Engine Air Filter](https://caterpillar.scene7.com/is/image/Caterpillar/CM20250708-f936e-6d291?fmt=webp&hei=384&wid=384)

Standard Efficiency Engine Air Filters are your best value for normal duty applications providing larger capacity and quick servicing.
- **Cat**
- Shape: Round
- Type: Secondary
- Overall Width (in): 3.724
- Overall Height (in): 3.724
- Material: Carbon Steel, Polypropylene Plastic
- Overall Depth (in): 13.366
- Media Type: Standard

### [509-5694: Secondary Fuel Filter Element](https://parts.cat.com/en/catcorp/product/509-5694)
![509-5694: Secondary Fuel Filter Element](https://caterpillar.scene7.com/is/image/Caterpillar/CM20220504-08c0e-939da?fmt=webp&hei=384&wid=384)

Upgrade your equipment with Cat's reliable secondary fuel filter element. Designed for durability and performance, ensuring high performance.
- **Cat**
- Diameter (in): 3.484
- Length (in): 6.654
- Flow Direction: Out-to-In
- Material: Polyamide Plastic
- Filter Type: Cartridge

## Key

### Factory Fit
This part is designed to fit your Cat equipment based on the manufacturer’s specifications. Any changes to the manufacturer’s configuration might result in the product not fitting your Cat equipment. Please consult your Cat Dealer before purchasing to ensure that this part is appropriate for your Cat equipment in its current condition and assumed configuration. This indicator cannot guarantee compatibility for all parts.

- Remanufactured

- Non-Returnable

- Kit

- Replaced

## Features and Benefits

Caterpillar knows engine parts must endure incredible stresses and extreme temperatures. That's why we continually improve design and manufacturing processes. Cat® engine parts function seamlessly as a comprehensive system and have potential to be remanufactured for a second life. Rigorous testing identifies critical differences between Cat engine parts and others. These differences allow Cat engine components to improve engine performance, life, productivity, reliability and reduce total cost of ownership. All engine parts are backed by the worldwide Cat dealer network and parts warranty.

### Check below for your engine needs

**Engine Components:**
- Cat engine components are designed to provide optimal protection and quality for maximum engine life.
- Cat parts are built to exact tolerances and undergo rigorous testing to ensure reliable performance, long life, and a lower cost of ownership.
- Cat engine parts are designed and manufactured to perform as a system and be rebuilt for a second life, with processes that are continually improved to ensure state-of-the-art quality.

**Engine Filters & Fluids:**
- Cat Filters are designed with robust engineering to protect the Cat components around them – especially the engine and the fluids.
- Not only are Cat fluids designed for Cat equipment, but Cat equipment is also designed to perform at its best when using Cat Fluids.
- When you pair Cat Fluids with S•O•S™ analysis, customers experience longer drain intervals that translate to bottom line savings.

**Valve Train:**
- Valve Train components are developed using state of the art design, simulation tools and deep engineering expertise, resulting in robust and reliable components that are used in Caterpillar engines.
- All Valve Train components undergo rigorous validation which includes metallurgical analysis, on engine testing, fatigue testing, and measurement of all wear surfaces. This validation ensures reliable performance, long life, and a lower cost of ownership.
- Caterpillar Valve Train components are designed and manufactured to perform as a system with other genuine Cat parts to ensure the longevity and performance of the engine.

## Cat Engines Frequently Asked Questions

### What types of engine parts are available?
- Genuine Cat new and Reman parts and components are available to give you a powerful advantage because they are made specifically for your Cat equipment.

### How do Cat’s engine parts improve engine performance?
- Caterpillar engine parts are designed and manufactured to perform as a system and be rebuilt for a second life, with processes that are continually improved to ensure state-of-the-art quality.

### How can I be sure that the engine part I need is compatible with my specific engine or machine?
- Contact your Cat dealer. Your Cat dealer is committed to your success, helping you find the right parts for your operations.

## Reference

- [Cat® spark plugs are designed to provide easy installation and removal, limiting the amount of downtime.](https://caterpillar.scene7.com/is/content/Caterpillar/CM20150527-47069-31420)
- [Cat Reman](https://www.cat.com/en_US/products/new/parts/reman.html)
- [SIS](https://sis2.cat.com/)

## Videos

- [Component Moment](https://www.cat.com/componentmoment?fbclid=IwY2xjawGHVHBleHRuA2FlbQIxMQABHfI16urAzuOfU69pKELKUs523IVSZrrzxoQ5Sp7PNN4lRfququJtNCIsTg_aem_mEd5qeLvBTUkrK_IjHXZ2w)
- [Truck Engine Video Hub](https://www.cat.com/en_US/articles/truck-engine-resource-center/videos.html)
- [Spark Plug Selector](https://www.youtube.com/watch?v=KljKdabcEZw)

## Product Pages

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