Home / Products by Vehicle Type / Ford / Ford Sierra & Escort RS Cosworth 2.0L Turbo / Servicing Parts / 4x4 Cosworth Oil Filter (Genuine Motorcraft) 4x4 Cosworth Oil Filter (Genuine Motorcraft) £14.00 £11.67 (ex. VAT) Add to your Wish List You will earn 14 points with this purchase Info Reviews Genuine Ford 4wd Sierra Cosworth Oil Filter. This oil filter will fit all 4wd Sierra Cosworths and is a genuine Ford item. Not yet reviewed Write an online review and share your thoughts with other shoppers! Be the first to review this product. Tab 4 content. Tab 5 content.