+3 CAT 1R-1807 Replacement Oil Filter for 2001-2016 6.6l Duramax Chevy GMC KB-CAT 1R-1807 $46.95 In stock Quantity: 1 Add to Bag Product Details CAT 1R-1807 Replacement Oil Filter Fits: 2001-2016 6.6l Duramax Chevy GMC trucks running a CAT Oil Filter Adapter. Save this product for later Favorite