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Ships within 48 hours · Estimated delivery Sep 13 - Sep 18
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Description
FASS Fuel Systems Lift Pump Universal Wire Harness With Relay & Cover 14 Gauge | 10 GaugeKeep your lift pump operating at peak performance with one of these FASS Fuel Systems Wire Harness, featuring a durable relay and protective cover. Built for the demands of high performance diesel systems, this harness is available in both 14 gauge and 10 gauge configurations to meet a variety of applications. The 14 gauge wire harness is a versatile option ideal for standard and mid level applications, offering reliable current delivery for
Keep your lift pump operating at peak performance with one of these FASS Fuel Systems Wire Harness, featuring a durable relay and protective cover. Built for the demands of high-performance diesel systems, this harness is available in both 14-gauge and 10-gauge configurations to meet a variety of applications.
The 14-gauge wire harness is a versatile option ideal for standard and mid-level applications, offering reliable current delivery for consistent pump performance. Perfect for less demanding systems or general upgrades, the 14-gauge harness provides a lightweight yet durable solution while maintaining the efficiency and quality you expect from FASS. Its adaptability makes it suitable for multiple FASS lift pump models and a wide range of installations.
The 10-gauge wire harness is specifically designed for use with fully adjustable Titanium Signature Series, Industrial Series, and Competition Series FASS Fuel Systems, delivering the heavy-duty performance these systems require. With enhanced current capacity, the 10-gauge harness minimizes voltage drop, ensuring your pump receives full, uninterrupted power.
Proper wiring is critical to the performance and longevity of your FASS fuel system. This high-quality replacement harness includes a relay and is engineered to provide the correct current, preventing power drop-offs commonly seen with OE wiring. With FASS Fuel Systems, you can trust your system to deliver consistent, reliable fuel flow in even the most demanding conditions. Upgrade your wiring and protect your investment with the FASS Universal Lift Pump Wire Harness, a component built to meet the highest standards of durability and performance.
NOTE: to get FASS warranty coverage for your product you must fill out their registration form here.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Tried as a last resort... It worked!
Color: Blue, Number of Items: 1
My 3.0 MerCruiser stern drive was hard starting and would not hold at idle and ran really rough under load. I put 2 cans of S*Foam Marine through the tank and replaced the fuel filter and the spark plugs. With only a slight improvement I decided to bring it to my dealer. They replaced the distributer cap, rotor and plug wires and sent me on my way. The idle was good, but under load (headway speed) it ran really rough. Brought it back and they swapped out the carburetor and lake tested it. Back at home it ran great for a one-hour ride. A week later I tried to start it and the idle was bad again (engine shaking, erratic RPM). Almost dragged it back to the dealer but thought I would try this first. Per instructions I added this to about 15 gallons already in the boat and then topped it off with 5 gallons of fresh gas. Let it idle at about 1500 RPMs for 15 minutes and WOW, it's purring like a kitten. Next time, this will be my first resort!
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Reviewed in the United States on August 6, 2024
★★★★★ 5
It works!
Size: 16 Fl Oz (Pack of 1), Style: Individual
A short story long---LOL---My zero turn started acting quirky-it would not run at full power and would begin to stall when put under a full load - like trying to mow some taller or thicker grass- never did stall since I would immediately kill the mower but obviously it was not right. I checked and changed the fuel filters-this one has 2 . One in the pick up line in the tank and one is inline just before the fuel pump unit. No help! So, before I dropped the big bucks to have the local farm dealer come and pick it up (at $75 per pickup and return) plus h=whatever shop charges that would result I thought "What the heck, lets give this stuff a try" I gambled $6 . I put in 5 ounces for the 5 gallons tank, and filled it with the gas I had on hand- should have been relatively fresh gas -no more than 2 weeks since pumped . Well, whatever the cause of the issue within about 15 to 30 minutes of low speed running- mostly at idle - the engine seemed to be idling smoothly as opposed to before where it surged but never died, I gave it a try at mowing. YEA!!!! full power and no bogging down - I finished mowing the yard and a part of the pasture (not yet grown up much so it is not requiring the rotary cutter YET) My only guess is perhaps a batch of either old gas or some water in the gas can or mower tank but whatever the cause it fixed it --and all for $6.
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Reviewed in the United States on April 12, 2025
★★★★★ 5
Convenient to order from Amazon
Size: 16 Fl Oz (Pack of 1), Style: Individual
Works as expected.
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Reviewed in the United States on January 25, 2026
★★★★★ 4
Good product
Size: 16 Fl Oz (Pack of 1), Style: Individual
Works well for my lawnmower. It's running better after first time using.
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Reviewed in the United States on July 13, 2025
★★★★★ 5
Fuel stabilizer
Size: 16 Fl Oz (Pack of 1), Style: Individual
Great additive
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Reviewed in the United States on January 21, 2026