FASS Drop-In Series Diesel Fuel System for PACCAR MX-13
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.
Description
Description
Purpose-built for the PACCAR MX-13 (EPA 13 and EPA 24) engine platform, the FASS Drop-In Series Diesel Fuel System is the most cost-effective, easiest way to strip air vapor and entrained air out of your fuel before it reaches your injection system. Cleaner fuel means longer injector life, restored horsepower, and sharper throttle response — all from a true plug-and-play install.
Why Choose the FASS Drop-In Series Diesel Fuel System?
- Triples injection system life – Removing entrained air and air vapor protects your diesel injection components from premature failure.
- Restores power and response – Eliminating contaminants optimizes MPG (results will vary), restores horsepower, and sharpens throttle response.
- Increases fuel lubricity – Boosts lubricity by at least 10% by pulling entrained air and air vapor out of the fuel.
- True 100% drop-in – No cutting, no wiring, no additional modifications. Installs in an hour or less.
- Flexible mounting – Inlet ports usable on either side, air separation ports usable on either side, and a single outlet on top of the filter base.
- Built to last – Machined in the USA from 6061-T6 billet aluminum and Type 3 hardcoat anodized black for corrosion resistance.
- OEM-friendly – Excellent choice for heavy equipment OEMs; runs alongside OEM filtration or as the final filtration stage for the injection system.
Installation Highlights
FASS Drop-In Technology was developed to deliver industry-leading filtration with the simplest possible installation, making this a true bolt-in upgrade. If you're mechanically inclined, you can install it in your driveway in less than an hour — no cutting, wiring, or additional modifications required.
Fits These Models
Engineered for the PACCAR MX-13 platform, including EPA 13 and EPA 24 engines.
Specifications
- 4x SAE 10 (O-Ring Boss) fuel inlet ports
- 1x SAE 10 (O-Ring Boss) fuel outlet port
- 2x 1/4" Male JIC air separation ports
- 2x 1/8-27 NPT fuel inlet pressure ports
- 300 PSI max pressure rating when equipped with the PF1002
- 500 GPH max flow rate
- Machined in the USA from 6061-T6 billet aluminum
- Type 3 hardcoat anodized black for corrosion resistance
Key Features at a Glance
- Air separation - Removes air vapor and entrained air to protect injectors
- Plug-and-play - 100% drop-in with no additional modifications
- Flexible porting - Dual-side inlet and air separation ports for easy mounting
- 500 GPH flow - High flow capacity for demanding platforms
- USA-machined billet - 6061-T6 aluminum, Type 3 hardcoat anodized
Notes
- 300 PSI max pressure rating applies when the system is equipped with the PF1002.
- Can be run in addition to OEM filtration or as the final filtration stage for the injection system.
- MPG results will vary.
Questions? We're Here to Help.
Have questions about upgrades for your PACCAR MX-13? Contact FASS Motorsports and we'll get you dialed:
Phone: 636-429-7020
Email: info@fassmotorsports.com
