Spindo Seal #5 Trailer Axle Spindle Repair Kit – 1.98" Seal OD – 5619U
Axle-wide spindle seal repair kit for select 2,000–2,200 lb marine trailer axles using L44649 bearings, a 1.25" original seal surface and a 1.98" seal bore. This kit will not fit a 1.50" seal surface.
Key Measurements & Specs
| Specification | Detail |
|---|---|
| Part Number / SKU | 5619U |
| Product Line | Spindo Seal |
| Kit Number | Kit #5 |
| Product Type | Trailer axle spindle seal repair sleeve kit |
| New Seal Outside Diameter | 1.98" |
| New Seal Inside Diameter | 1.375" |
| Original Seal Surface | 1.25" |
| Bearing Journal Size | 1.0625" / 1-1/16" |
| Wear Sleeve Inside Diameter | 1.319" |
| Wear Sleeve Material | Corrosion-resistant stainless steel |
| Quantity Included | One complete two-spindle axle kit |
Fitment / Application
| Category | Details |
|---|---|
| Trailer Application | Select marine and boat trailer axle applications |
| Axle Reference | Some 2,000–2,200 lb UFP, Reliable and similar axle configurations |
| Typical Inner Bearing | L44649 with a 1-1/16" bore |
| Required Seal Bore | 1.98" outside diameter |
| Required Original Seal Surface | 1.25" |
| Fitment Method | Verify the bearing number and physically measure both the hub seal bore and spindle seal surface |
| Will Not Fit | Spindles using a 1.50" seal surface |
| Important Note | This is an uncommon bearing and seal combination. Do not order by axle capacity alone. |
Top Features
| Feature | Buyer Benefit |
|---|---|
| Stainless Repair Surface | Creates a smooth sealing surface over a worn or damaged spindle shoulder |
| Axle-Wide Kit | Includes repair components for both spindle ends of one axle |
| O-Ring Sleeve Seal | Helps seal between each repair sleeve and the spindle surface |
| Replacement Neoprene Seals | Provides seals sized for the larger repair-sleeve surface |
| Measurement-Based Fitment | Clearly identifies the required bearing, seal bore and spindle shoulder sizes |
Overview
The Spindo Seal 5619U Kit #5 is designed to repair a worn or damaged grease-seal surface on select marine trailer axle spindles. Each stainless steel sleeve installs over the original 1.25" seal area, creating a smooth 1.375" surface for the included replacement seal. The complete kit services both spindle ends of one axle.
R&P Service Insight
This repair system is intended for a specific and relatively uncommon spindle configuration. Confirm all three critical measurements before disassembling the hub or ordering replacement components.
- Bearing Check: Confirm the inner bearing is L44649 with a 1-1/16" bore.
- Seal Bore Check: Confirm the hub accepts a 1.98" outside-diameter seal.
- Spindle Check: Confirm the original seal shoulder measures 1.25", not 1.50".
R&P Knowledge Hub
Compatibility: Intended for select marine trailer axles using L44649 bearings, a 1.25" original spindle seal surface and a 1.98" hub seal bore.
System Fit: Commonly associated with some 2,000–2,200 lb UFP, Reliable and similar marine axle configurations. Application references do not guarantee fitment.
Installation Notes: Clean the spindle thoroughly and inspect the bearing journals before installation. The O-ring seals beneath the stainless sleeve, and the included 1.375" ID seal rides on the new repair surface.
Performance Insight: A smooth stainless sealing surface can address grease leakage caused by grooves, corrosion or wear where the original seal contacts the spindle.
Brand & Fitment Note
Product Identification: Spindo Seal Kit #5, part number 5619U.
Application References: UFP and Reliable names are used only to identify known axle applications where the listed measurements match.
What This Means: This listing is for one Spindo Seal spindle repair kit containing components for both ends of one axle. It is not represented as a complete hub, bearing or axle assembly.
Before Ordering: Verify the bearing number, bearing journal diameter, original spindle seal-surface diameter, hub seal bore and included-component requirements.
R&P Repair Insight
Replacing only the grease seal may not correct leakage when the spindle shoulder is grooved, pitted or corroded. This kit covers the original seal area with a new stainless surface and uses a larger replacement seal sized for that sleeve.
- Inspect the Old Surface: Look for grooves, rust, pitting or an uneven contact area where the old seal rode.
- Measure the Shoulder: The repair sleeve has a 1.319" inside diameter and is intended to fit over the specified 1.25" seal area.
- Avoid the Common Mismatch: A 1.50" seal shoulder is larger than this sleeve and is not compatible with Kit #5.
Critical Fitment Warning
This is not the common 1.50" seal-surface configuration.
Many standard 2,000–2,200 lb trailer axles also use L44649 bearings but have a 1.50" spindle seal area. The bearing number by itself is therefore not enough to determine compatibility.
- Required bearing bore: 1-1/16"
- Required original seal surface: 1.25"
- Required hub seal bore: 1.98"
- Not compatible with a 1.50" spindle seal surface
Features
Smooth Stainless Seal Surface
Each corrosion-resistant stainless steel sleeve covers the worn original seal area and provides a smooth surface for the new seal.
Complete Two-Spindle Repair Kit
Includes two sleeves, two O-rings and two replacement seals—enough to service both ends of one trailer axle.
Designed for L44649 Applications
Intended for select spindle configurations using L44649 bearings with a 1-1/16" bearing journal.
Clear Measurement-Based Fitment
The required 1.25" spindle seal surface and 1.98" hub seal bore help distinguish this kit from more common 1.50" seal applications.
Included Components
| Quantity | Item |
|---|---|
| 2 | Corrosion-resistant stainless steel spindle repair sleeves |
| 2 | Rubber O-rings for sealing the sleeves to the spindle |
| 2 | Neoprene replacement seals with 1.375" inside diameter and 1.98" outside diameter |
| Not Included | Bearings, races, hubs, bearing protectors, grease and installation tools |
