Shipping Eberspacher parts to the US from UK can be surprisingly quick if Express shipping is chosen via checkout.
Our shipping partner for US is UPS - they regularly achieve next-day delivery amazingly to East Coast US, but to safeguard our customer expectation we prefer to quote 3-4 business days from order placement.
Regarding discounts? We are always happy to work with regular repairers of diesel heaters. We would be able to provide a discount, but please may I request you register initially with www.butlertechnik.com and then request a trade account?
I can then provide accurate pricing feedback for you. Thank you for getting in touch
Regards
David