Nissan TD42 Exhaust Manifold Stud, Nut & Washer Set prado If the factory breather is

If the factory breather is submerged at this point

High tensile steel

For PJ and PK models

2016 and onwards in some areas

Extending the factory breathers to a higher position in the 4wd keeps them "high and dry" or if you are crossing extremely deep water it will keep them clear until this process has been completed

Nissan TD42 Exhaust Manifold Stud, Nut & Washer Set prado If the factory breather isExhaust Manifold Stud, Nut & Washer Set, Suits Nissan TD42 and TD42T engines. Safari and Patrol This set includes: 12 x M10x1. 25 studs to suit. With hex head for easy install. 12 x Copper plated exhaust lock nuts 12 x Hardened flat washers 1 x Allen key Details: High tensile steel, Zinc Chromate coated manifold studs with copper plated lock nuts. Each of these studs come with a hex head on the end for easy install. These studs are an upgrade from OEM