Parts for Caterpillar C9 - Oil Section Loading... 1 Oil Pump for Caterpillar C9 Engines 3318905 Click picture for more details Price: $ 471.62 Qty: ^ Pictures In Stock Add to Cart 2 Oil Filter Removal Wrench for Detroit Diesel, Caterpillar & Cummins 2321 4-21/32" to 5-5/32" Price: $ 63.29 Qty: ^ Details In Stock Add to Cart