This is an air‑separation & filtration system—not a lift pump
Designed as direct drop‑in replacement for Caterpillar filter housing; retains factory lift pump
Features
Removes vapor and entrained air to protect injection system
Improves lubricity by at least 10%, extending injector and pump life
Plugs directly into OEM filter location—no cutting or rewiring
Enhances fuel economy, restores lost power and throttle response
Lifetime warranty when purchased through authorized FASS dealer
Rated for easy install in under one hour
Made in USA with certified quality standards
Compatible only with specified Caterpillar engines and filter housings
Specifications
Part Number: DIFSCAT1001
Type: Drop‑In air separation fuel filter system
Filtration: 3 micron or better; removes water vapor & entrained air
Install: Fits Cat engines with 1R‑0749 or 1R‑0750 filter housing
Warranty: Limited lifetime (registration required within 30 days)
Included Components
1× FASS Drop‑In Series filter housing unit
O‑rings, fittings, and necessary sealing hardware
Installation manual and warranty registration form
Product Description
The FASS DIFSCAT1001 Drop‑In Series Fuel System is engineered for **Caterpillar 3406E, C10, C11, C12, C13, C15, C16, and C18 diesel engines** equipped with OEM 1R‑0749 or 1R‑0750 fuel filters. This bolt‑in filtration system replaces the factory filter housing to eliminate entrained air, vapor, and water from your fuel supply.
By improving fuel lubricity by at least 10% and removing contaminants before the injection pump, DIFSCAT1001 helps extend the life of your CAT injectors and injection equipment—offering up to triple the service life in many cases. The system installs in under one hour without cutting or wiring, and retains your existing lift pump setup. Backed by a limited lifetime warranty when purchased through authorized FASS dealers.
*Parts are for USA spec vehicles, please contact us to verify fitment on JDM & international models.
· · · SHIPPING · · ·
Free shipping across the contiguous 48 United States (excludes Hawaii and Alaska). Item(s) ships on the same day or within 1 business day. Delivery time is within 2 to 4 business days excluding next day deliveries. Orders over $750 require signature for delivery.
Canada customers - If eBay does not collect import & duty fees during checkout, the shipping carrier will collect them prior to delivery.
· · · RETURNS · · ·
Your complete shopping satisfaction is our #1 priority. If an item you ordered from us does not meet your expectations, please contact us within 30 days of receiving the item(s). If your order arrives damaged from shipping please contact us and we will provide a prepaid return label to send back for a replacement or refund.
Returned items must be in the original packaging (including plastic wrapped items) and in brand new condition.
Any returns received installed, mounted, used or missing components will be subject to return fee's.
· · · PAYMENTS · · ·
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PayPal, and all major credit cards/debit cards are accepted.
· · · FEEDBACK · · ·
Customer satisfaction is a top priority for us. If you have any issues with your order, please let us know. We will make every effort to resolve any problems and ensure you are satisfied.
· · · CONTACT US · · ·
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