A new windscreen washer pump for the 1989 XJS have been on backorder for a long time. I had windscreen pump on order with SNG. The pump is still on backorder for several months still with no delivery date. The cost from SNG is $105.00 with shipping and tax. I purchased an equal pump that is redly available from PartGeeks for $22.78 including shipping and taxes. The pump is manufactured by APA/URO Parts SKU 171955651.