The protective oil cooler body is mounted on the cylinder head using an intake manyhold flange. Fits most heads with monkey and ducks (Specifications) Head Mount Pitch: 1.7 inches (44 mm) Oil Cooler Pitch 3.5 inches (90 mm) [Contents] Protective Oil Cooler Head Top Setting Stay 1 Spacer M6 2 Cap Bolts M6 1 [Compatible Product] 12 V Monkey Oil Cooler 3 Tier Core Protector NO1526 12V Monkey Oil Cooler No 3 Tier Core Protector 1669 12V Monkey Oil Cooler 4 Tier Core Protector NO1670 6V Monkey Oil Cooler 3 Tier Core Protector NO1661 6V Monkey Oil Cooler 4 Tier Core Protector NO1660 Monkey Gorilla (12V) Z50J-200001~/AB27-10000000000000000001~ ~ Monkey Key/Gorilla 3.1PS (6V) Z50J-160008~1805927 Monkey/Gorilla 2.6PS(6V) Z50J-1300017~1510400 Monkey Z50A/Z50Z Monkey Z50J-100001-119559595959595 * downdraft cats Does not fit letter