| Sierra Item # | OE/Competitor # | Quantity | Description | Image | Comments |
| 18-2753-2 | GLM Mercruiser Stern Drive
| 1 | Shift Cable Bellows |  | N/A |
| 18-2750 | GLM Mallory Mercruiser Stern Drive
| 1 | Exhaust Bellows |  | N/A |
| 18-2747 | GLM Mallory Mercruiser Stern Drive
| 1 | Drive Bellows |  | N/A |
| 18-21006 | Mallory Mercruiser Stern Drive
- 30-862540A04
- 30-862540A3
- 30-862540T1
- 30-879194A01
| 1 | Gimbal Bearing |  | N/A |
| 18-2840 | GLM Mercruiser Stern Drive
| 1 | Bell Housing Gasket |  | N/A |
| 18-7153 | GLM Mallory Mercruiser Stern Drive Mercury Marine Mercury Race Outboard Mercury Race Sterndrive OMC Stern Drive Volvo Penta
| 2 | O-Ring |  | |
| 18-7170 | Chrysler/Force/US Marine GLM Johnson/Evinrude Outboard Mallory Mercruiser Stern Drive Mercury Marine OMC Stern Drive Volvo Penta
| 1 | O-Ring |  | N/A |
| 18-7117 | GLM Johnson/Evinrude Outboard Mallory Mercruiser Stern Drive Mercury Marine
| 1 | O-Ring |  | N/A |
| 18-2743 | GLM Mallory Mercruiser Stern Drive
- 27-94996
- 27-949962
- 27-94996A20
| 1 | Outdrive Mounting Gasket |  | N/A |
| 18-710-24-2 | | 1 | Hose Clamp-1-1/16 TO 2 |  | N/A |
| 18-710-16-2 | | 2 | Hose Clamp-11/16 TO 1-1/2 |  | |
| 18-3602 | GLM Mallory Mercruiser Stern Drive
- 32-4172533
- 32-8M0062309
- 32-8M0109048
| 1 | Water Intake Hose |  | N/A |