| 4420 | RE10982 | Serial Number 610101 and Above, Fits in 421-172 Manifold |
| 4425 | RE10982 | Serial Number 610101 and Above, Fits in 421-172 Manifold |
| 4435 | RE10982 | Fits in 421-172 Manifold |
| 6620 | RE10982 | Fits in 421-172 Manifold |
| 6622 | RE10982 | Fits in 421-172 Manifold |
| 7440 | RE10982 | Fits in 421-172 Manifold |
| 7445 | RE10982 | Fits in 421-172 Manifold |
| 7722 | RE10982 | Fits in 421-172 Manifold |
| 8820 | RE10982 | Fits in 421-172 Manifold |
| 9400 | RE10982 | Fits in 421-172 Manifold |
| 9500 | RE10982 | Fits in 421-172 Manifold |
| 9500SH | RE10982 | Fits in 421-172 Manifold |
| 9600 | RE10982 | Serial Number 650300 and Below, Fits in 421-172 Manifold |
| 9930 | RE10982 | Serial Number 14000 and Below, Fits in 421-172 Manifold |
| 9950 | RE10982 | Serial Number 14000 and Below, Fits in 421-172 Manifold |
| CTS | RE10982 | Serial Number 650400 and Below, Fits in 421-172 Manifold |
