Ford Slimline Marine Seal – 491018
Price
$3.95 Inc.GST
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Slimline Marine Seal
Slimline marine seals suit Ford bearings installed on slimline or parallel axles.
Common axle sizes are:
- 45mm Round
- 45mm Square
- 50mm Round
- 50mm Square
Specifications
I.D: 43.9mm
O.D: 59.10mm
Ford Seal Instructions
- Check that the seal fits perfectly onto the axle journal before proceeding further.
- Grease the seal ID before installing onto your axle. The grease lubricates the marine seal and helps prevent heat.
- Insert the stainless steel ring into the rear of the hub and make sure it is hard against the outside of the hub boss.
- Insert a rubber seal over the axle journal.
- Insert hub and bearings over rubber seal.
- The hub should be pushed hard onto the rubber seal, and the rubber seal should be hard against the axle shoulder.
- The axle shoulder prevents the slimline marine seal from sliding further down the axle.
Find more of our extensive range of standard and marine seals here:
- Grease Seal Holden LM
- Holden Standard Marine Seal – 492020
- Slimline – Parallel Standard seal
- Ford Slimline Marine Seal – 491018
- 2t Caravan Bearing Seal | 64607
- 2t to 3t Marine Metal Bearing Seal
- 1.6t Dexter Grease Seal
- 2.0t Dexter Bearing Seal – GS-2125DL
- 2.0t Dexter Bearing Seal – GS-2250DL
- Simplicity Seals
- 2.0t Dexter Bearing Seal – 33970
- 2.0t Dexter Bearing Seal – 33940
- Trojan 2t Marine Seal – PT10141
- 2.0t Melb Trailer Bearing Seal – 64190
Ford Slimline Marine Seal: Installation DO’s & DON’Ts
Protect your wheel bearings from saltwater corrosion and road grime. Follow these essential technical steps to guarantee a completely waterproof, high-performance fit for your marine seals.
✔️ What You SHOULD Do (The DO’s)
- Lubricate the Inner Rubber: Apply a thin film of fresh, high-temperature marine grease to the inner seal lip before sliding the hub onto the spindle to prevent dry-friction wear.
- Keep the Metal Outer Ring Clean: Do ensure the hub bore where the metal casing seats is completely free of old rust, scoring, and pitted debris before pressing the new seal home.
- Drive the Seal Squarely: Do use a proper seal driver or a flat, soft block of wood placed over the outer face to knock the seal perfectly flat and flush with the hub edge.
- Inspect the Spindle Wear Sleeve: Check that the rear shoulder area of your trailer axle (where the seal rides) is perfectly smooth; replace pitted wear sleeves to prevent slow water leaks.
- Double-Check Sizing: Confirm that your hub accommodates the standard Ford Slimline marine profile (roughly 44mm ID x 65.1mm OD) before force-fitting the components.
❌ What You SHOULD NOT Do (The DON’Ts)
- Don’t Distort the Steel Casing: Never strike the delicate center rubber lip or the outer metal ring with a narrow metal tool or pin punch, as bending the casing causes immediate seal failure.
- Don’t Use Household RTV Silicone: Avoid packing the inner rubber lips with household silicone sealant; it strips away during rotation and hardens, destroying the waterproof barrier.
- Don’t Seat the Seal Crooked: Never allow the marine seal to go into the hub bore sideways. Cocked installations warp the casing, causing immediate grease leaks and water ingress.
- Don’t Reuse an Old Seal: Never reuse a marine seal that has been removed during a routine bearing service; removing it inevitably distorts the internal tension spring.
- Don’t Submerge Boiling Hot Hubs: Avoid launching your boat into cold water immediately after a highway run. Let the hubs cool for 15 minutes to prevent contracting air from sucking water past the seal.
Additional information
| Weight | 0.1 kg |
|---|---|
| Dimensions | 6 × 6 × 1 cm |
| Seal SKU | 491018 |
| Seal ID | 43.9mm |
| Seal OD | 59.1mm |
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Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.
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