HP Parts Store Discount Codes
The following HP Parts Store discount codes are currently active:
Code: US21000015 can be used for orders > $100 and applies a discount of 15% on your order. This is a promo code given out when asked for a discount code using chat.
Code: US22000115 is a marketing promo code for a discount of 15% off a purchase.
These are the only promo codes available for the HP Parts Store as far as I know.
I have successfully used the first promo code. I have not tried to use the second promo code.