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3909888 Fan Blade Hub Fan Support for Cummins 4B 4BT 6BT Fan Hub 4932912
$137.59
Sale price
$137.59
Regular price
Available to Order
This Fan Blade Hub is a fan support assembly compatible with Cummins 4B, 4BT, and 6BT engines and matches OEM Part# 3909888 and 4932912.
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I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.
Randy W. — Verified customer
Product Overview
This fan blade hub is a direct replacement fan support for Cummins 4B, 4BT, and 6BT diesel engines. It provides a stable mounting point for the fan blade, ensuring efficient engine cooling and reliable operation in industrial and agricultural equipment.
Key Features & Performance
- Precision-engineered to match OEM specifications for a secure fit
- Constructed from durable materials to withstand high operating temperatures
- Direct replacement for part numbers 3909888 and 4932912
- Ensures proper fan alignment to reduce vibration and wear
- Rigorous quality control for consistent performance
Fitment & Compatibility
- Cummins 4B engine series
- Cummins 4BT engine series
- Cummins 6BT engine series
Common Uses
- Replacement for worn or damaged fan hubs on Cummins diesel engines
- Used in generator sets powered by Cummins 4B, 4BT, or 6BT engines
- Ideal for agricultural tractors and irrigation pumps
- Commonly installed in industrial compressors and construction equipment
Technical Specifications
- Part Number(s): 3909888, 4932912
- Product Type: Fan Blade Hub / Fan Support
- Material: Cast metal
Frequently Asked Questions
Q: Will this fan hub fit my Cummins 6BT engine? A: Yes, this fan support is compatible with Cummins 6BT engines as well as 4B and 4BT models.
Q: Does this include the fan blade? A: No, this is the fan blade hub and support assembly only; the fan blade is sold separately.
Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.