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30% Off Online Orders of Select Parts and Accessories. Enter Promo Code PEP30 in Cart

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30% Off All Online Orders of Select Parts and Accessories
Receive 30% Off Your Online Purchase. Use promotional code POSTCYBER at checkout to receive discount. Not valid in combination with any other discounts or promotions. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Excludes the following categories: Tires, Wheels, Batteries, Powerstop Brake Kits, Oil, Antifreeze, Refrigerant, Truck Boxes, Vent Visors, Bug Shields and BRANDS: Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Thule, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, JVC, MSD and BBK Performance. Valid online until 2:59 am EST on 12/6/16. Online orders scheduled for in-store pick up must be completed by closing on 12/5/16 for discount to apply.

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  • Part #: 78380|
  • SKU: 9866201

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Pay in Store Available

    • Helps maintain diesel engine performance by keeping fuel injectors clean and improving lubricity of diesel fuel
    • Save fuel by keeping injectors clean
Sale Price
$7.49
$4.90
PayPal available for online purchases. Major credit cards accepted online and in store. Pay online, in-store or take advantage of our Pep Boys credit card. Learn more and see additional details in cart.

STP Diesel Treatment & Injector Cleaner

Use Regularly When You Fill Up! Formulated to help prevent deposit build-up in diesel engines. Without cleaning, these deposits can harm performance, cause corrosion and waste fuel.
  • Helps maintain diesel engine performance by keeping fuel injectors clean and improving lubricity of diesel fuel
  • Save fuel by keeping injectors clean
  • Maintain performance by preventing deposit build-up, corrosion and rust
  • Fight fuel line freeze and wax gel formation


9866201