Caterpillar 1R-1804 FUEL WATER SEPARATOR
1、High separation efficiency: The water separator can remove 100% free water and 90% emulsified water as well as fine impurities, improving fuel quality and protecting the engine.
2、Excellent Compatibility: Specifically designed and manufactured for Cat equipment, extending the life of secondary filters and precision fuel system components, reducing the frequency of parts replacement and lowering costs.
3、High integration: Designed by Caterpillar as an integrated component of the important fuel system, ensuring the smooth operation of the whole system and eliminating compatibility issues.
Product Introduction
1. General description
The Caterpillar 1R-1804 oil-water separator is a key component of fuel purification for Caterpillar diesel engines. It separates water and mechanical impurities from diesel fuel, protecting injectors and high-pressure pumps from damage, and ensures reliable operation of equipment in difficult conditions (cold, moisture, dust).
2. Main technical characteristics
Materials: Durable fiberglass/metal body, resistant to fuel and temperatures (-40°C to +90°C).
Efficiency: Removes 99.9% water (≥5 µm) and 98% impurities (≥3 µm).
Working pressure: 1.0 MPa; productivity – up to 60 l/h (for engines 150–400 hp).
Service life: 8,000 km or 5 months (under standard use).
3. Design and features
Filter element: Multilayer, hydrophobic, non-separable (easy to replace).
Water collector: Transparent with indicator and drain tap (some modifications have an electronic indicator).
Seals: Silicone, prevent leaks.
Compactness: Dimensions ~150×250 mm (can be mounted in limited space).
Marking: Part number 1R-1804, Caterpillar logo, production date.
4. Compatibility
Suitable for Caterpillar equipment:
Construction: Excavators (320, 336), tractors (D6, D8), rollers (CS66B, CS76B).
Agricultural: Tractors (MT865E), combines (LEXION 7000).
Industrial: Generators (C15, C18), pumping units.
Check compatibility with dealers or in the Caterpillar Parts Catalog.
5. Operation and maintenance
Water check: Every 50 h/1,000 km; drain when maximum is reached.
Element replacement: Upon expiration of service life or when engine power drops/instability occurs (without special tools).
Storage: Dry, cool place (shelf life: 3 years in packaging).
Use only original products.
6. Warranty and authenticity
ISO 9001 certified, 6 month warranty (if installed correctly).
Check authenticity on the Caterpillar website (enter the article number and code from the packaging).
Avoid non-original analogues (risk of engine damage).
Exhibition cabinets
Getting to know the plant
The plant operates a team of highly qualified and experienced engineers who continuously introduce technological innovations and improve products. Currently, the company has a number of independent intellectual property rights and patented technologies. The manufactured construction equipment includes a wide range of equipment such as excavators, loaders, taps, bulldozers and other machines. Products are highly productivity, reliability, energy efficiency and environmental friendliness, as well as the ability to adapt to difficult operating conditions in various climatic and working media around the world.
Awards and fightsfikation
frequently asked questions
1. In which countries are we exporting?
Asia: Vietnam, India, Indonesia, Pakistan, Kazakhstan, Uzbekistan, etc.
Europe: Russia, Belarus, Ukraine, Lithuania, Saudi Arabia, etc.
South America: Brazil, Chile, Paraguay, Argentina, etc.
Africa: South Africa, Ethiopia, Libya, etc.
2.What payment terms can we accept?
Usually we can work on T/T, 30%TT before production and 70%TT before shipment
3.What logistics methods can we work with for delivery?
1) For most countries in Europe, South America and Africa etc. we can go by container or Roro via ocean freight.
2) For China's neighboring countries, such as Russia, Vietnam, Kazakhstan, Uzbekistan, etc., we can deliver by road or railway.
3) For light spare parts in urgent requirement, we can ship it by international courier service, such as DHL, TNT, EMS or other air freight.
4. How can you ensure that you deliver goods to customers?
A: We will provide you with full delivery information for you confirmed.
5.What are our advantages compared with other manufacturers/factories?
1) Reliable quality: Carefully select regular manufacturers to support spare parts such as engines, axles, transmissions, and many parts designed and produced by ourselves, always adapting the best materials.
2) Competitive price: Concentration of mechanized production in large quantities reduces production costs to ensure competitive price.
3) Service Team: Firstly, our sales managers are on duty 24 hours a day, ready to answer your questions at any time. Secondly, professional technical service team with senior technicians, ready to provide support services for users and dealers. Most of the problems can be solved within 24 hours.
4) Fast delivery: Generally, we can delivery within 10 working days in factory after receiving the advance payment from customers.
6. How can you provide customers with after-sales service?
A: We will reply you at the first time and help you solve the problems within 24 hours. If we really need your local, we
We will send your professional person to your locality to help you solve the problems without any hesitation, supply you with comprehensive







