Sierra 18-1940 Chrysler Marine Exhaust Manifold Small Block LM318/M360

• Chrysler Small Block LM318/M360 Exhaust Manifold
• Fits Chrysler models 318-360 CID engines (1966 & up)
• Use Sierra manifold mounting kit 18-8526 or 18-8527 (stainless)
• Replaces Chrysler 3675826; 4142322; 4142322-1
• Replaces Osco 826

Fits Engines: Chrysler Marine 273; 318; 340 & 360 CID engines (1973-1986) OE Replacement: 4142322; 3675826.Aftermarket Replacement Use this chart to match other aftermarket part numbers to this part: Osco: 826 Barr: CM-1-6677A Sierra: 18-1940 Aqua Power: 5519. NOTE:Fits: Chrysler Model 273; 318; 340 & 360 CID engines (1973-1986) Use with: End Cap Gasket: 18-2941 Open or 18-0472 Blocked Mounting Kit: 18-4360 Open or 18-4361 Open or 18-8506 Blocked End Plate: 18-1941 Blocked or 18-1942 Open Note: If using a blocked end plate either gasket will work. If using an open end plate use only an open gasket.

Sierra high-quality engine parts are designed to meet OEM specifications. Note: if using a blocked end plate; either gasket will work. If using an open end plate; use an open gasket.

Interchangeable with:

• Barr
  • CM-1-6677A
• Chrysler Inboard
  • 3675826
  • 4142322
• Mallory
  • 9-40303
• Osco
  • 826

Use With:

• 18-0472: Exhaust Elbow Gasket (Blocked)
• 18-1941: Manifold End Plate
• 18-1942: Manifold End Plate
• 18-2941: End Cap Gasket (Open)
• 18-4360: Exhaust Elbow Mounting Package
• 18-4361: Exhaust Elbow Mounting Package (Open)
• 18-8506: Exhaust Elbow Mounting Kit
• 18-1944: Riser
• 18-1945: Riser
• 18-1946: Elbow
• 18-6600: Elbow
• 18-8526: Exhaust Manifold Mounting Kit
• 18-8527: Exhaust Manifold Mounting Kit