Fits, doesn't leak. those are o-rings. Fits 2001 Ford 5.4L injectors. Comes with 8 per pack, just know you need 2 o-rings per injector, 1 on top and 1 on bottom. They also come with a handy little tool for attaching O-rings to the tips. I just didn't get the significant performance boost I was hoping for. (JK)
Restore Your Diesel Engine Performance With Archoil AR6400-D Fuel System Cleaner
31 Review
Lucas Oil Fuel Treatment Quart - Tan Color, 1QT Size
31 Review
Universal Fuel Tank Lock Ring Tool For Chrysler, Dodge, Ford, GM, Nissan, And Jeep Wrangler - Easy Fuel Pump Senders Removal And Install Tool
44 Review
ALAVENTE Carburetor For Ford 240 250 300 YF C1YF 6 Cylinder CIL Engine 1975-1982 D5TZ9510AG, Carb For Carter YF Type, Replace # RSC-300A 6307S 6054 6055 6-736 6056 6057 6058 6059, Automatic Choke
26 Review
Tire Michelin ENERGY XM2+ 185/65 R15 88 H
30 Review
MICHELIN Energy XM2+ 175/70 R13 82T summer
29 Review
1.5 Inch Leveling Lift Kit Compatible With 2004-2022 F150๏ผLeveling Lift Kit Fit For 2004-2022 F150 2WD 4WD Forged Front Strut Spacers Raise The Front Of Your F150 By 1.5
13 Review
MICHELIN Energy XM2+ 205/65 R15 94V Summer
35 Review