Title:
FUEL FILTER (KU-W21ESF1660)
Description:
The KU-W21ESF1660 fuel filter is a spin-on diesel fuel filter designed for Kubota engines used in tractors, excavators, and industrial machinery. It is engineered to remove contaminants such as dirt, rust, and water from fuel, ensuring clean fuel delivery to the injection system.
This filter helps maintain optimal engine performance, improved fuel efficiency, and long-term protection of injectors and fuel pumps, making it a critical service component.
Model Fitment:
Kubota M Series Tractors
- M8540, M8560
- M9540, M9960
- M100GX-2, M105GX-4
- M108, M110GX / M110GX-2
- M128GX
- M5 Series (M5-082, M5-092, M5-102, M5-112)
- M6 Series (M6-101, M6-111)
- M40 / M60 series variant
Kubota Excavators
Engine-Based Fitment
Commonly used with Kubota diesel engines such as:
Cross-Application Equipment
Because of the engine fitment, the filter is also used across:
- Compact tractors
- Construction equipment
- Utility and industrial machines
- Groundcare equipment
Part Details:
- Part Number: W21ESF1660
- Part Type: Fuel filter (spin-on)
- Application: Diesel engine fuel system
- Thread Size: 3/4″–16 UNF
- Height: ~116 mm
- Outer Diameter: ~84–85 mm
- Weight: ~0.18–0.5 kg
Key Functions:
- Removes dirt, debris, and water from diesel fuel
- Protects injectors and fuel pumps
- Maintains consistent fuel flow
- Prevents engine performance issues and wear
Key Features:
- High-efficiency pleated filter media
- Durable steel spin-on housing
- OEM Kubota fit and reliability
- Designed for agricultural and heavy-duty use
Cross References:
- Kubota: 16631-43560, HH166-43560, 1G772-43560
- Baldwin: BF954
- Donaldson: P502163
- Fleetguard: FF5172
- MANN: WK 7041
