Blockage Prevention System (Oil Cooler) - Universal Kit - (Does not include fan bracket kit) - V2(0) No Reviews yet Pinit USD$3,378.00 Quantity discounts available QuantityPrice SKU: 7995 Quantity -+ Add to Cart Print Details Blockage Prevention System Core Unit - V2. AIRGUARD Blockage Prevention Systems are the ideal air drill solution to reduce tractor oil temperatu... DetailsBackDetailsBlockage Prevention System Core Unit - V2. AIRGUARD Blockage Prevention Systems are the ideal air drill solution to reduce tractor oil temperature, and also eliminate plugging and reduce humidity in the air stream on your air drill. Reviews 0 BackRatings & ReviewsNo reviews availableBe the first to Write a Review