Aliexpress
Click here… to search for AuroraRC PachRay3 140mm 3-4S 25A RC Motor on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (262.73 USD): Drones6
Coupon (262.73 USD): CouponsDE
Coupon (262.73 USD): 00c906
(CouponsFromChina.com tip: apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGTT10, BGRC902, BgoFErTaSchInA10, BGRay3, bGhOnEy10, BgcLuBofErtA10, BG11Racer, BGAFF10OFF, BG10RACING, BG9MCH, BGDAVIS, BGMATT7, BANGGOODSD
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Do you need price history chart (for all/most countries) for AuroraRC PachRay3 140mm 3-4S 25A RC Motor? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).