CORTECO 12011427 ACM B1KLRD 53x68x10 Radial Shaft Seal

Technical specifications

OE cross-reference numbers

The following original equipment references are associated with CORTECO 12011427 in replacement-parts listings.

These references support component identification but do not establish compatibility with every engine or machine manufactured by the listed brands.

The exact application should be verified using the original equipment documentation, engine identification and relevant assembly information.

CORTECO 12011427 – catalogue identification

The CORTECO dimensional catalogue identifies 12011427 – ACM B1KLRD – 53x68x10 mm, with FIAT listed as an application.

Replacement-parts catalogues also identify the reference 12011427B, while 82011427 appears as an additional commercial designation.

Listings for CORTECO 12011427B describe a right-hand directional design and crankshaft installation at the transmission end.

The complete manufacturer reference, dimensions, material and sealing profile should be checked when ordering.

What does CORTECO 12011427 ACM B1KLRD 53x68x10 mean?

The designation identifies the manufacturer, catalogue reference, dimensions, elastomer material and sealing profile.

• CORTECO – manufacturer brand.

• 12011427 – product catalogue reference.

• 53 mm – nominal shaft diameter.

• 68 mm – nominal housing bore diameter.

• 10 mm – nominal axial width.

• ACM – polyacrylate rubber.

• B1KLRD – specific radial shaft sealing profile associated with a directional sealing design.

• Right-hand twist – directional characteristic indicated in replacement-parts catalogues for the 12011427B variant.

The complete B1KLRD designation must be preserved during product identification.

Seals with identical dimensions but different profiles, materials or directional features are not automatically interchangeable.

B1KLRD sealing profile – construction and operating principle

The B1KLRD profile is used in radial shaft sealing applications where both sealing contact and directional lip geometry are important.

Replacement-parts catalogues identify this version as having a right-hand twist.

A directional sealing structure may help return lubricant towards the sealed chamber when the shaft rotates in the intended direction.

Important: A right-hand twist designation does not automatically mean that the seal is suitable for every shaft described as rotating clockwise.

The correct selection depends on the manufacturer's directional convention, shaft rotation and installation orientation.

The exact metal reinforcement, spring arrangement and any additional sealing lips should be verified against the technical drawing for the specific product.

ACM polyacrylate rubber – material properties

ACM is a synthetic polyacrylate elastomer used in selected oil sealing applications, particularly where improved thermal resistance is required compared with conventional NBR compounds.

Typical properties of appropriately selected ACM compounds include:

• Good resistance to many lubricating oils.

• Higher thermal resistance than standard NBR compounds.

• Good resistance to ozone and atmospheric ageing.

• Suitability for selected engine and transmission sealing applications.

• Compatibility with certain lubricants used in mechanical drive assemblies.

ACM is not universally resistant to water, steam, fuels or all chemical additives found in lubricating oils.

The exact operating temperature range and chemical compatibility depend on the specific elastomer compound.

For CORTECO 12011427, maximum temperature, permissible pressure and shaft speed should not be specified without manufacturer documentation.

Comparison with other 53x68x10 radial shaft seals

The CORTECO dimensional catalogue also identifies other radial shaft seals with the same nominal dimensions.

These products differ in sealing construction and elastomer material.

Identical dimensions do not establish interchangeability.

Differences in directional geometry, material compatibility and sealing lip configuration may affect installation and operating performance.

Selection and interchangeability

Before selecting CORTECO 12011427, verify:

1. Nominal shaft diameter – 53 mm.

2. Nominal housing bore diameter – 68 mm.

3. Installation width – 10 mm.

4. Required B1KLRD sealing profile.

5. Right-hand directional sealing requirement.

6. Compatibility of ACM with the operating medium.

7. Operating temperature and shaft peripheral speed.

8. Shaft surface condition and lubrication requirements.

9. Original equipment reference.

10. Installation position within the engine or mechanical assembly.

For crankshaft applications, particular attention must be paid to the installation position and shaft rotation direction.

A non-directional seal or a seal with the opposite directional profile should not automatically be substituted for B1KLRD.

Applications – FIAT and NEW HOLLAND

Replacement-parts catalogues describe CORTECO 12011427B as a crankshaft oil seal installed at the transmission end.

The listed OE references associate the product with FIAT and NEW HOLLAND applications.

Depending on the original equipment configuration, the seal may be used in:

• Crankshaft sealing assemblies.

• Engine rear sealing positions.

• Engine-to-transmission interfaces.

• Agricultural machinery engines.

• Mechanical assemblies requiring directional shaft sealing.

These are potential application areas based on the available catalogue information.

The OE reference must be checked against the specific engine, machine or mechanical assembly.

The term transmission end identifies the crankshaft sealing position on the side facing the gearbox. It does not necessarily mean that the seal is installed on a gearbox shaft.

Alternative designations and search references

Common English technical designations include:

• CORTECO 12011427

• CORTECO 12011427B

• CORTECO 82011427

• CORTECO 12011427 ACM B1KLRD

• CORTECO 53x68x10 ACM Oil Seal

• CORTECO 12011427 Radial Shaft Seal

• CORTECO 53x68x10 Crankshaft Oil Seal

• Radial Shaft Seal 53x68x10 ACM

• Right-Hand Twist Oil Seal 53x68x10

• Crankshaft Oil Seal 53x68x10 Transmission End

These are catalogue and descriptive references. They do not independently establish compatibility with other manufacturer part numbers.

Installation and operating recommendations

Before installation, clean the housing bore and inspect the shaft surface for scratches, corrosion and excessive wear.

The seal should be installed evenly using suitable mounting tools.

Avoid applying installation force directly to the sealing lip.

For a directional sealing profile such as B1KLRD, installation orientation and shaft rotation must correspond to the manufacturer's requirements.

Before operation, provide appropriate lubrication at the sealing contact area, following the equipment manufacturer's instructions.

Incorrect installation direction, inadequate lubrication, excessive shaft runout or unsuitable surface roughness may cause premature wear and lubricant leakage.

FAQ – Frequently asked questions

1. What are the dimensions of CORTECO 12011427?

The nominal shaft diameter is 53 mm, the housing bore diameter is 68 mm, and the axial width is 10 mm.

2. What does ACM mean in a radial shaft seal?

ACM is polyacrylate rubber, an elastomer used in selected oil sealing applications requiring resistance to lubricants and elevated temperatures.

3. Is CORTECO 12011427 a directional oil seal?

Replacement-parts catalogues identify the 12011427B variant as having a right-hand twist. The correct installation must account for the required shaft rotation direction.

4. Is CORTECO 12011427 designed for crankshaft applications?

Replacement-parts catalogues describe the product as a crankshaft oil seal installed at the transmission end.

5. Is CORTECO 12011427 equivalent to FIAT 40003300?

FIAT 40003300 appears in OE cross-reference listings for CORTECO 12011427B. Compatibility must be verified for the specific vehicle or engine.

6. What other OE references are associated with this product?

The listed references include FIAT 4401432, NEW HOLLAND 5107908 and NEW HOLLAND 596450.

7. Can a standard BA oil seal replace the B1KLRD profile?

Not automatically. Differences in construction, material and directional sealing geometry may prevent interchangeability despite identical nominal dimensions.

8. Is ACM resistant to engine oil?

Appropriately selected ACM compounds are used with many lubricating oils. Compatibility with a specific engine oil and operating conditions must be confirmed.

CORTECO 12011427 – key information

CORTECO 12011427 is an ACM radial shaft seal with nominal dimensions of 53x68x10 mm and a B1KLRD sealing profile. Replacement-parts catalogues identify the 12011427B variant as a right-hand twist crankshaft oil seal for transmission-end installation. OE references include FIAT 40003300 and 4401432, together with NEW HOLLAND 5107908 and 596450. Correct selection requires verification of directional compatibility and the specific application.

The product is offered through the specialist B2B industrial trading platform simmering.pl, serving industrial companies, technical purchasing departments and maintenance operations, with worldwide shipping from stock in Poland.