SKU: 60626867841

SWEPCO | 501 Diesel Fuel Improver | Cetane Booster | Multi-Function

Sale price$95.00 Regular price$105.56
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 28 - Sep 2

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For Your Every Summer RSVP, with Code: SUMMER15

Description

SWEPCO | 501 Diesel Fuel Improver | Cetane Booster | Multi-FunctionBOOST COMBUSTION, CLEAN INJECTORS, FIGHT DIESEL DEPOSITS SWEPCO 501 Premium Diesel Fuel Improver is a powerful multi function additive designed to restore performance and protect today's diesel enginesespecially when running low quality or ultra low sulfur diesel fuels. It increases cetane for smoother, quieter combustion, reduces emissions, and protects injectors from wear and fouling. Whether you're managing over the road trucks, agricultural

BOOST COMBUSTION, CLEAN INJECTORS, FIGHT DIESEL DEPOSITS

SWEPCO 501 Premium Diesel Fuel Improver is a powerful multi-function additive designed to restore performance and protect today's diesel engines—especially when running low-quality or ultra-low sulfur diesel fuels. It increases cetane for smoother, quieter combustion, reduces emissions, and protects injectors from wear and fouling. Whether you're managing over-the-road trucks, agricultural equipment, or off-road fleets, SWEPCO 501 keeps your diesel systems cleaner, longer, and running more efficiently.

Key Features:

  • Raises Cetane Numbers: Boosts ignition quality for quicker starts, smoother acceleration, and more complete combustion—especially in cold weather.
  • Cleans & Protects Injectors: Keeps injectors clean and removes existing deposits for better spray patterns and fuel efficiency.
  • Reduces Emissions Up to 42%: Independently tested using opacity methods—cleaner fuel burns mean cleaner air.
  • Minimizes Wear from ULSD: Reduces abrasive injector and pump wear by up to 26%, countering the low-lubricity of ultra-low sulfur diesel fuel.
  • Winter Formula Available: Improves cold flow and prevents gelling during cold starts and sub-freezing operation.

Performance Benefits:

  • Improves ignition quality in any diesel fuel
  • Improves fuel economy and reduces fuel-related maintenance
  • Reduces smoking, misfiring, knocking, and starting issues
  • Extends injector and pump life significantly
  • Enhances fuel storage stability and system cleanliness

Markets Served:

  • Over-the-Road Trucking & Fleets
  • Agriculture & Farming Equipment
  • Marine & Dockside Operations
  • Heavy Construction & Industrial Vehicles

Common Applications:

  • All diesel engine types: mobile, stationary, turbocharged
  • Fleet vehicles, long-haul rigs, school and transit buses
  • Tractors, harvesters, and other farm equipment
  • Mobile construction and off-road diesel machinery
  • Diesel-powered generators, cranes, compressors

 

CLEANER FUEL. QUIETER COMBUSTION. FEWER BREAKDOWNS.
RUN SWEPCO 501 AND KEEP YOUR DIESEL DIALED IN.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 60626867841

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Melissa Ploeckelman
Dallas, US
★★★★★ 5
Playing fetch for hours
Size: Medium, Style: Medium (4 Pack)
Tennis balls with the hairs pick up so much dirt and then that goes right into my dog's mouth. These are cleaner, my dog loves them, and they are easy to find when my pup decides he's done and drops it in the lawn or the snow. They hold up well after playing hours of fetch with my border collie.
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Reviewed in the United States on April 23, 2026
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S.
Boise, US
★★★★★ 5
Our favorite ball to play fetch with!
Size: Medium, Style: Medium (4 Pack)
The Chuckit! Ultra Ball Dog Toy is our dog’s favorite ball to play fetch with! Amazing quality and they have lasted us years! They are extremely durable and the perfect size for playing fetch. Great product!
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Reviewed in the United States on May 8, 2026
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S1
Lowell, US
★★★★★ 5
Built tough for puppies
Size: Medium, Style: Medium (4 Pack)
These are great, the bright color stands out in grass outdoors they bounce well on hard floors indoors, and they’ve held up well even after a couple weeks of a very chew happy puppy playing with them.
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Reviewed in the United States on May 26, 2026
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Michael L. Howeth
Boise, US
★★★★★ 5
Best ball for retrieving ever
Size: Medium, Style: Medium (4 Pack)
I have been using a ball launcher to exercise my Border Collie. Up till now I have been using the launcher to throw tennis balls. Even with the launcher I can only throw the balls a couple of hundred feet. These balls go MUCH further. I am using a steep horse pasture to throw the balls and I have to make sure that I don't launch them past the fence at the end of the pasture. I think the thing that makes them go further is their weight combined with a smooth surface. They also have incredible bonce. They hit and just shoot way up into the air. Also, the tennis balls I was using were green. In my horse pasture they were easy for the Collie to miss since they blended right in to the grass. These balls with the orange with blue stripes are far easier for the dog to find. It's really hard to tire out a Border Collie but these balls do the job.
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Reviewed in the United States on January 15, 2026
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Carla
Alexandria, US
★★★★★ 5
Great fun for retrievers
Size: Medium, Style: Medium (4 Pack)
Great durable balls. Use these with or without the thrower. Lab puppy loves to play fetch and these are easy to spot in the yard. Our neighbor has 2 pit bulls who also plays with them. Will buy them again if need be.
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Reviewed in the United States on May 27, 2026

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