Bell Housing Gasket Kit 27-94996Q2 27-949962 for MerCruiser Alpha One Gen II R MR Sterndrive Sierra 18-2743 GLM 31141 — Australia Local Warehouse
Bell Housing Gasket Kit 27-94996Q2 27-949962 for MerCruiser Alpha One Gen II R MR Sterndrive Sierra 18-2743 GLM 31141 — Australia Local Warehouse
Product Overview
Bell housing gasket kit for MerCruiser R, MR, Alpha One and Alpha One Gen II sterndrives from serial 6225577 onward, 1983 and newer, supplied as 1 outdrive mounting gasket, 1 bell housing gasket and 4 O-rings in a 18 x 28 x 3 cm (7.1 x 11.0 x 1.2 in) box. It replaces 27-94996Q2, 94996Q2, 94996A2, 94996A20, 64818A3, 949962 and 94996, plus Sierra 18-2743, GLM 31141 and Mallory 9-61012. Held in our Australia local warehouse.
The drive has to come off for bellows, gimbal bearing or alignment work, and these gaskets and O-rings are single use. Reusing a compressed gasket lets salt water into the bell housing, which is the short road to a seized gimbal bearing and a corroded driveshaft yoke.
Two of the O-rings seal the water passage and two seal the drive oil passage. Mixing them up, or leaving one out, is the usual reason a fresh service leaks on the first run.
Specifications
| Specification | Detail |
|---|---|
| Condition | New / New with tags |
| Type | Bell housing gasket kit |
| Drive Family | MerCruiser R, MR, Alpha One, Alpha One Gen II |
| Serial Number | 6225577 and above |
| Years | 1983 and newer |
| Contents | 1 mounting gasket, 1 bell housing gasket, 4 O-rings |
| Packaging Size | 18 x 28 x 3 cm (7.1 x 11.0 x 1.2 in) |
| Quantity | 1 kit |
OEM Cross Reference
| Brand | OEM Part Numbers |
|---|---|
| MerCruiser | 27-94996Q2, 94996Q2, 94996A2, 94996A20 |
| MerCruiser | 27-949962, 27-94996A1, 94996A1, 94996 |
| MerCruiser | 64818A2, 64818A3, 27-64818A3 |
| Sierra | 18-2743 |
| GLM | 31141 |
| Mallory | 9-61012 |
Compatible Engines
| Drive | Years | Note |
|---|---|---|
| Alpha One Gen II | 1991 to 1997 | Serial 6225577 and above |
| R, MR, Alpha One | 1983 to 1990 | Serial 6225577 and above |
| R, MR, Alpha One, Gen II | 1983 and newer | Petrol 4 and 6 cylinder and V6 and V8 |
What's Included
| Component | Qty |
|---|---|
| Outdrive mounting gasket | 1 |
| Bell housing gasket | 1 |
| O-ring | 4 |
While the Drive Is Off
| Part | Why It Goes Together | If Skipped |
|---|---|---|
| Bell housing gasket kit | Seals the housing once the drive is off | Salt water into the bellows cavity |
| Drive bellows | Same labour, perishes on the same schedule | Water and gear oil in the bellows |
| Gimbal bearing | Accessible only with the drive removed | Rumble and vibration through the hull |
| Water passage O-rings | Two per kit, compressed after one fit | Overheat from a leaking pickup |
| Drive oil O-rings | Two per kit, keep oil in and water out | Milky drive oil within a season |
| Alignment check | Free once the drive is off | Splines wear, coupler fails early |
| Anodes | Behind and around the drive | Faster corrosion on the housing |
Fitting Notes
| Step | Action |
|---|---|
| 1 | Confirm the drive serial, this kit is 6225577 and above, earlier drives take a different set |
| 2 | Clean both mating faces to bare metal, old gasket and salt crust both stop the new gasket sealing |
| 3 | Check the bell housing face for corrosion pitting, deep pits need dressing before assembly |
| 4 | Fit all four O-rings dry and in their grooves, no sealant on rubber |
| 5 | Align the gimbal bearing before the drive goes back on, do not pull the drive up with the nuts |
| 6 | Tighten the drive nuts evenly in a cross pattern to the book torque, uneven torque distorts the housing |
| 7 | Pressure test or run on muffs and look for water at the housing joint before the boat goes back in |
| 8 | Check the drive oil level after the first run, milky oil means an O-ring rolled out of its groove |
Condition & Warranty
| Item | Detail |
|---|---|
| Condition | New / New with tags |
| Warranty | Standard |
| Packaging | Sealed retail packaging |
Shipping from Australia
| Destination | Warehouse | Note |
|---|---|---|
| Australia | Australia local warehouse | Domestic delivery, no import duty |
| New Zealand | Australia local warehouse | Short transit, customs may apply |
| Asia Pacific | Australia local warehouse | Tracked air and sea options |
Before You Buy
- Confirm the drive serial is 6225577 or above, earlier drives take a different kit
- Clean both mating faces before fitting, old gasket and salt crust stop the new gasket sealing
- Fit all four O-rings, two are for water and two are for drive oil
- Check gimbal bearing and bellows while the drive is off, the labour is already paid
- This is the gasket and O-ring kit only, bellows, gimbal bearing and anodes are not included
- 30-Day Easy Returns
- Ships from our Australia local warehouse
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