The SPOOLOGIC Exhaust Manifold Bolt Kit SL-320-003 is a complete Grade 10.9 hardware kit for replacing the factory exhaust manifold bolts on 1994-2003 Ford 7.3L Powerstroke trucks, vans, and Excursions. Covers both cylinder heads with high-temperature bolts and matching flat washers.

Features

• Complete exhaust manifold bolt kit for 1994-2003 Ford 7.3L Powerstroke
• Grade 10.9 — high tensile strength for high-temperature exhaust manifold use
• Hex flange head with matching flat washers
• Black oxide finish for corrosion resistance
• Covers both cylinder heads in one kit

What’s Included

• 16 Grade 10.9 hex flange bolts — black oxide finish
• 16 flat washers — black oxide finish

Why Replace Exhaust Manifold Bolts

Exhaust manifold bolts on the 7.3L Powerstroke are notorious for backing out, stretching, and snapping due to constant thermal cycling. Loose or broken bolts cause manifold leaks, exhaust ticks, lost boost, and warped manifolds. Installing a fresh Grade 10.9 set during manifold service restores proper clamp load and eliminates the most common cause of exhaust leaks on this platform.

Fits 1994-2003 7.3L Powerstroke

• 1994 – 2003 Ford F-250 / F-350 / F-450 / F-550 Super Duty 7.3L Powerstroke
• 1995 – 2003 Ford E-350 / E-450 / E-550 Econoline 7.3L Powerstroke
• 2000 – 2003 Ford Excursion 7.3L Powerstroke

Replaces Factory OEM Part Numbers

• Ford OEM: F4TZ-9S425-A, F4TZ9S425A

1-Year Limited Warranty

Every SPOOLOGIC bolt kit is covered by a 1-Year Limited Warranty against defects in materials and workmanship from the date of purchase. Warranty coverage requires that the failed hardware first be shipped back to SPOOLOGIC for inspection. If SPOOLOGIC determines the failure was caused by a defect in materials or workmanship, the hardware will be replaced at SPOOLOGIC’s discretion. Warranty does not cover damage from improper installation, incorrect torque, over-tightening, cross-threading, reuse of stretched or previously torqued fasteners, exposure to temperatures beyond the fastener’s rated operating range, corrosion from road salt or contaminated environments, use outside the listed fitment, cosmetic wear, or normal heat cycling marks. Warranty does not cover labor, shipping, towing, downtime, broken extractors, or any other costs outside the bolt kit itself.