Skip to Content

EngineDIY Coupons, Promo Codes and Deals

Apply all 4 EngineDIY coupons in one click

The Honey extension applies coupons at checkout and adds the best one to your cart.

4 Available Coupons

  • 10%OFF
    10% OFF sitewide
    10% off discount
  • Earn
    Cash Back on eligible EngineDIY purchases
    *Reward based on subtotal of
    (excludes taxes & fees). Honey account required. PayPal Rewards Terms apply.
  • 4Codes
    Automatically apply all 4 codes at checkout with one click
  • $200OFF
    Save $200 Off on Selected Products
    $200 off promo code
  • $100OFF
    Save $100 Off on Selected Products
    $100 off promo code
  • 10%OFF
    Spring Sale Get 10% Off Sitewide
    10% off discount

10 Available Deals

    • Deal

      10% OFF On Full Metal 4 Cylinder Car Engine at Enginediy

    • Deal

      ST. Patrick's Day On Enginediy

    • Deal

      Buy Any 2 STEM Models, Save 15% Off

    • Deal

      Buy 2 Gifts, Save 15% Off

    • Deal

      15% Off Automatic discount offer

    • Deal

      Up to 50% Off Clearance

    • Deal

      25% Off TOYAN Engine Sale

    • Deal

      Up to 30% Off TECHING Engine Sale

    • Deal

      Buy Any 2 Tesla Coils, Save 15% Off

    • Deal

      LABOR DAY SUPER SALE 15% OFF Sitewide This Labor Day

    Shop Exclusive Offers, Price Drops, and Collections

    Shop by Category

    Take PayPal Honey with you to 30,000+ sites

    Did you know we automatically try coupons on store sites? Add our extension and let us do all the work for you.
    Currently, we only support Chrome, Safari, Firefox, Edge, and Opera.

    More Information from EngineDIY

    We try to make sure all the info shown here and under “FAQs” is accurate. However, all details, including specifics around store programs, policies, offers, discounts, incentives, and rewards programs, are provided for informational purposes only, subject to change, and may be inaccurate or out of date. You can check the store site for the most current info and full details.

    Coupon CodesTotal OffersBest DiscountAverage Savings
    Does EngineDIY have any working coupons right now?
    We recently found 4 active coupons at EngineDIY. Members have used these codes 1,013 times to save on their order. To see if the codes are still active, add items to your cart and we’ll see if they can apply to your purchase.
    How much can I save at EngineDIY?
    In the last 30 days, Honey members have saved on average $38.10 at EngineDIY. The most recent successful savings were found by the Honey browser extension 4 hours ago.
    How can I look for the deals at EngineDIY?
    You can use the Honey browser extension to automatically apply the best coupons we find at checkout. Or you can manually copy and paste the codes when checking out on the EngineDIY site to see if they work for you.
    Trending EngineDIY Coupons
    Coupon CodeDiscountDescription
    10% off10% OFF sitewide
    $100 offSave $100 Off on Selected Products
    $200 offSave $200 Off on Selected Products
    10% offSpring Sale Get 10% Off Sitewide