32-41725-33 3/4-Inch Transom Water Intake Hose · Fits MerCruiser R MR Alpha One Gen II, Replaces 18-3602, 47110, 8M0215001

32-41725-33 3/4-Inch Transom Water Intake Hose · Fits MerCruiser R MR Alpha One Gen II, Replaces 18-3602, 47110, 8M0215001

GHMarine 3/4-inch water intake hose for the bell-housing / transom raw-water circuit on select R / MR / Alpha One / Alpha One Gen II assemblies. Primary OEM 32-41725-33 (also 32-4172533). Service / supersession path: 32-8M0062309 → 32-8M0109048 → 32-8M0215001. Catalog size about 13-7/8 inches long × 3/4-inch I.D..

Ships as one standalone molded water-intake hose. This is not a complete transom repair kit (no bellows, gimbal bearing, or multi-hose kit). Clamp count is not locked on this page — confirm against your package.

Which hose is this?

It is the single 3/4-inch molded hose in the sterndrive bell-housing / transom water-intake route. It carries raw cooling water through the transom assembly into the boat cooling system.

It is not the Bravo Design I hose (32-43437 — GH 18H1001), not Bravo Design II (32-8M0062102), not the older 5/8-inch intake hose (32-32461 — GH 19H1001), and not an engine-bay circulating-pump molded hose.

Signs yours is due

• Alpha One Gen II SN bands (0D469859–0F679999 / 0F680000–0K999999): the 3/4-inch intake hose on the current service path is cracked or clamp-cut.
• Parts diagram shows 8M0062309 → 8M0109048 → 8M0215001 for the same 3/4-inch hose — your physical hose is hard/soft/swollen and needs replacement.
• Transom-side bilge dampness with a 3/4-inch (not 5/8-inch) bell-housing inlet — confirm 32-41725-33 family before you order a full seal kit.
• Divert: 0L100040 & up must re-check current EPC Where Used — do not buy on "Gen II" name alone. 5/8-inch old hose → GH 19H1001.

Will it fit my drive?

This 3/4-inch intake hose is Compatible with select MerCruiser R / MR / Alpha One / Alpha One Gen II transom assemblies whose parts record specifies 32-41725-33 (or the service numbers in the supersession path). Drive name alone does not prove fit — confirm hose number, 3/4-inch I.D., ~13-7/8-inch length, routing, and sterndrive / transom serial.

*Representative catalog / Where Used bands. Final fit = original hose number + 3/4-inch I.D. + length/routing + sterndrive/transom SN — not drive badge alone.

OEM & swap numbers

Primary identity 32-41725-33 / 32-4172533. Supersession path 32-8M0062309 → 32-8M0109048 → 32-8M0215001. Cross-refs below are for the same 3/4-inch hose family.

Wrong part? Read before you order

• NOT Bravo Design I hose 32-43437 / 8M0090859 / 18-3603 (GH 18H1001)
• NOT Bravo Design II hose 32-8M0062102
• NOT 5/8-inch intake hose 32-32461 / 18-3601 / 47120 (GH 19H1001)
• NOT engine-side cooling hose 32-52481 / 18-70930
• NOT circulating-pump molded hose 32-87108 (GH 18H1006) or 2.5/3.0L U hose (GH 18H1004)
• NOT a full transom service kit (30-803097T1 / 30-803099T1 style multi-part kits)

What ships in the box

• 1 × 3/4-inch molded water-intake hose (32-41725-33 family)
• Clamps: not locked as a fixed outbound BOM on this page — confirm quantity against your package

Often ordered with related SKUs

• Bravo Design I water intake hose → GH 18H1001
• 5/8-inch Alpha / older intake hose → GH 19H1001
• V6/V8 circulating-pump molded hose → GH 18H1006
• Transom bell-housing exhaust bellow → GH 17B1003

Install tips on the transom water circuit

Bell-housing / transom raw-water hose work. Cold engine; disconnect battery; support the drive / follow the service manual for access. This is a water hose — not an exhaust bellow. Do not use bellows adhesive or a bellows expander.

1. Match the old hose number, 3/4-inch I.D., ~13-7/8-inch length, and routing before removal; photograph clamp positions.
2. Drain / catch water as needed; loosen clamps; remove the old hose; clean mating tubes and check for corrosion or sharp edges.
3. Seat the new hose fully on the correct ports without twist or kink; place clamps on the clamp lands.
4. Tighten to the service-manual specification for that assembly (no universal torque invented on this page).
5. Run and check for leaks and normal raw-water flow / temperature before returning the boat to service.

FAQ

Why do I see 8M0062309, 8M0109048, and 8M0215001?

They are the supersession / service path for the same 3/4-inch 32-41725-33 hose family. Match the number on your old hose or current EPC — 19H1002 sells that single hose, not a multi-part seal kit.

I am on Alpha One Gen II — which serial check matters?

Use the Gen II SN bands on this page (0D469859–0F679999 / 0F680000–0K999999) plus 3/4-inch I.D. For 0L100040 & up, re-check current EPC Where Used before ordering — Gen II name alone is not enough.

Is this a Bravo Design I or Design II hose?

No. Those are 32-43437 / 32-8M0062102. 19H1002 is the R/MR/Alpha 3/4-inch bell-housing intake hose family.

Diagram still shows an older 5/8-inch hose — is this OK?

No. If the old hose / diagram is 5/8-inch (32-32461), buy GH 19H1001. This page is 3/4-inch only.

Will this arrive as a complete 30-803097T1 / 30-803099T1 kit?

No. Those are full transom service kits. 19H1002 is one molded 3/4-inch hose (clamps only if your package includes them).

Do I glue this like a U-joint bellow?

No. Use the water-hose clamp method in the sterndrive service manual — not bellows adhesive / expander procedures.

Please note

Aftermarket replacement by GHMarine. Not affiliated with engine manufacturers named above. "Compatible with", "Replaces", and supersession numbers identify the 32-41725-33 3/4-inch family — always confirm hose number, I.D., length, routing, serial, and package contents before ordering.