This OEM vacuum power brake booster is designed specifically for Nissan Pickup models from 1992 to 2008 (including D21). Made of steel with a housing diameter of 8.75 inches and a diaphragm diameter of 8.29 inches, this brake booster comes with the booster unit and an instruction sheet. It is covered by a manufacturer warranty of 5 years, ensuring quality and performance. OE/OEM part numbers for this product include 4721092G10, 4721013G01, 4721013G11, 4721037G01, 4721057G00, and 4721092G02. This brake booster is not a universal fitment or a performance part, making it a reliable choice for Nissan Pickup owners looking to replace or upgrade their braking system.