National Axle Differential Repair Sleeve,Engine Balance Shaft Repair Sleeve 99128
National Axle Differential Repair Sleeve,Engine Balance Shaft Repair Sleeve 99128

Manual Transmission Input Shaft Repair Sleeve for 1987-1995 Jeep Wrangler & More - National 99128

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$43.99
MPN: 99128
Item Package Quantity: 1
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National Axle Differential Repair Sleeve,Engine Balance Shaft Repair Sleeve P/N:99128
National Axle Differential Repair Sleeve,Engine Balance Shaft Repair Sleeve P/N:99128
$43.99

Give a new seal a fresh surface to ride on with the National 99128 Repair Sleeve. It is a direct-fit replacement for many vehicles, among them the 1987-1995 Jeep Wrangler and 1984-2002 Toyota Corolla. See the Buyer's Guide tab for the full list with engine codes.

When a shaft seal rides on the same spot for years, the lip can wear a groove into the shaft. A new seal may then have a poor surface to seal against. A repair sleeve presses over that worn seal-contact area and gives the seal lip a new surface. If a grooved shaft is behind a recurring leak, this sleeve is designed to address that surface. Diagnose the leak source first, because a leak can have other causes.

  • Multiple shaft applications: The part is listed under several names. These are crankshaft, camshaft, intermediate shaft, balance shaft, axle differential, drive axle shaft, manual transmission input shaft and automatic transmission output shaft repair sleeve, depending on the vehicle.
  • Catalog positions: Front, rear, left and rear outer, depending on the application.
  • Quantity per application: One or two, depending on vehicle and engine.
  • Broad coverage: Listed for Acura, Audi, Jeep, Toyota and many other makes and engines.

Interchange: N99128 · NN99128 · KWK99128 · 99128RS

This part cross-references / interchanges with the following part numbers:

99128, N99128, NN99128, KWK99128, 99128RS

Frequently Asked Questions

What does the National 99128 repair sleeve do?

It presses over the worn seal-contact area of a shaft. It is designed to give the seal lip a fresh surface to ride on in place of a grooved original surface.

Which shafts is the 99128 listed for?

Depending on the vehicle, it's listed for the crankshaft, camshaft, intermediate shaft, balance shaft, differential, drive axle shaft, manual transmission input shaft or automatic transmission output shaft.

How many do I need?

The listed applications use one or two, depending on vehicle and engine. Check the Buyer's Guide tab for your quantity.

What vehicles does it fit?

It fits many vehicles, among them the 1987-1995 Jeep Wrangler and 1984-2002 Toyota Corolla. See the Buyer's Guide tab for the full list with engine codes.

What are signs a repair sleeve may be needed?

Signs include a seal that leaks again soon after replacement, or a visible groove worn into the shaft where the old seal rode. Inspect the shaft and diagnose the leak before ordering.

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