CRACKING OF EXHAUST MANIFOLD NEW MANIFOLD RELEASED

Subject: EXHAUST MANIFOLD

Model and Year: 1973-84 MEDIUM DUTY TRUCKS WITH 366-427 CID ENGINES

A new exhaust manifold has been released to reduce cracking when subjected to high temperatures.

These manifolds are also interchangeable with past model years and can be identified by the casting numbers on the manifolds (P/N 14045183 - L.H. and P/N 14045184 - R.H.). This change was made on production units built after November 1, 1981.

PARTS INFORMATION

P/N New Attaching Hardware Exhaust Manifold (Both Manifolds) Torque ---------------- --------------------- ----------------- 14045181 - L.H. 15 - 3909821 - Bolt 20 lb. ft. (27 N.m) 14045182 - R.H. 1 - 473361 - Stud 20 lb. ft. (27 N.m)

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