Identify the vehicle. Retain the restrictions.

BCA NS4278 — vehicle application reference — page 2

Inspect 37 source-listed vehicle applications for BCA NS4278, with the original year ranges, component positions and restrictions. Historical catalogue evidence is not current VIN fitment approval.

Source-backed catalogue lookup

Filter by vehicle and component

Vehicle make Vehicle model Model year Component / position

Selections apply immediately. Every result retains the original year range, component position and additional restrictions. The button also works without JavaScript.

What this lookup establishes—and what it does not

Source: BCA 2021 Wheel Hub Assembly, Bearing and Seal Catalog. The loaded entries cover listed model years from 1995 through 2020. This is a historical catalogue reference, not a live VIN decoder or a guarantee for every trim, market or production date.

BCA is an NTN-owned product line. The numbers below remain BCA part references; they are not silently converted into NTN, SKF or another brand's part numbers. Confirm current OEM/service requirements before use.

Recorded application evidence

Where this exact BCA reference is listed

BCA NS4278 appears in 37 source application entries below. Different entries can have different vehicles, positions and restrictions. A shared part reference does not make every bearing in the vehicle interchangeable.

Reference records

26–37 of 37

“Bearing”, “hub assembly”, “seal” and “repair sleeve” describe different components. The source description, rather than the catalogue title, determines the role of each number.

On a phone, each record is shown as a complete card with its restrictions. These records do not supply tightening torques or certify a replacement.

BCA part reference	Component / position	Source model years	Recorded conditions & restrictions	Source trace
NS4278BCA catalogue reference	Differential Listed vehicle models Ford F-350 Super Duty	1999–2001Subject to the conditions in this row	Pinion Seal - Rear Outer [1392] with 10.5 (in) Ring Gear; Ford	2021 catalogue Page 208Entry 1378751b
NS4278BCA catalogue reference	Differential Listed vehicle models Ford F-350 Super Duty	2002–2016Subject to the conditions in this row	Pinion Seal - Rear Outer [1405] with 10.5 (in) Ring Gear; Visteon	2021 catalogue Page 213Entry 53d46c70
NS4278BCA catalogue reference	Differential Listed vehicle models Ford F-450 Super Duty	1999–2008Subject to the conditions in this row	Pinion Seal - RearNo additional numbered footnote is attached to this source row.	2021 catalogue Page 212Entry 5826ea91
NS4278BCA catalogue reference	Differential Listed vehicle models Ford F-550 Super Duty	1999–2007Subject to the conditions in this row	Pinion Seal - RearNo additional numbered footnote is attached to this source row.	2021 catalogue Page 212Entry 2302f04e
NS4278BCA catalogue reference	Differential Listed vehicle models Ford F53	1995–1997Subject to the conditions in this row	Pinion Seal - Rear [1345] with 10.25 (in) or 10.5 (in) Ring Gear	2021 catalogue Page 206Entry db54e2a3
NS4278BCA catalogue reference	Differential Listed vehicle models Lincoln Aviator	2003Subject to the conditions in this row	Pinion Seal - Rear [673] with 9.75 (in) Ring Gear	2021 catalogue Page 406Entry 6efab4c6
NS4278BCA catalogue reference	Differential Listed vehicle models Lincoln Blackwood	2002Subject to the conditions in this row	Pinion Seal - Rear Outer [1425] with 9.75 (in) Ring Gear; with Independent Rear Suspension; Visteon	2021 catalogue Page 406Entry b6c15ac0
NS4278BCA catalogue reference	Differential Listed vehicle models Lincoln Mark LT	2006Subject to the conditions in this row	Pinion Seal - Rear Outer [2364] with 10.25 (in) or 9.75 (in) Ring Gear; with Independent Rear Suspension; Visteon	2021 catalogue Page 406Entry bb0f9e1b
NS4278BCA catalogue reference	Differential Listed vehicle models Lincoln Mark LT	2007–2008Subject to the conditions in this row	Pinion Seal - Rear Outer [1425] with 9.75 (in) Ring Gear; with Independent Rear Suspension; Visteon	2021 catalogue Page 407Entry 0b3cf675
NS4278BCA catalogue reference	Differential Listed vehicle models Lincoln Navigator	1998Subject to the conditions in this row	Pinion Seal - Rear Outer [1543] with 10.25 (in) or 9.75 (in) Ring Gear	2021 catalogue Page 406Entry fb4d5068
NS4278BCA catalogue reference	Differential Listed vehicle models Lincoln Navigator	1999–2006Subject to the conditions in this row	Pinion Seal - Rear Outer [2372] 2nd Design; with 10.25 (in) or 9.75 (in) Ring Gear; with 0.485 (in) Width; 3.09 (in) O.D.; Ford	2021 catalogue Page 406Entry 9deebd70
NS4278BCA catalogue reference	Differential Listed vehicle models Lincoln Navigator	2007–2016Subject to the conditions in this row	Pinion Seal - Rear Outer [1301] with 9.75 (in) Ring Gear; with 0.485 (in) Width; 3.09 (in) O.D.; Ford	2021 catalogue Page 407Entry bffd9eb9

Checks before treating a reference as a replacement

Identify the complete vehicle

Match model year, engine, transmission, driven axle, body and production/VIN limits. A year and model name alone may leave several valid-looking entries.

Match the component role

Distinguish a loose bearing, complete hub, cup/cone, seal and repair sleeve. Check front/rear and inner/outer or left/right position exactly as recorded.

Preserve vehicle-specific interfaces

Confirm encoder/ABS arrangement, flange and spline interfaces, retention and the current service procedure. Do not transfer torque or installation force from an unrelated part.

How to use these results

Does a listed number guarantee fitment for my VIN?

No. These are source-listed catalogue references. Read every restriction and verify the current OEM and manufacturer information for the exact vehicle configuration. Missing VIN or production details remain unknown.

Can I replace a hub using a bearing with the same dimensions?

Not on dimensions alone. The complete assembly, encoder, retention, loading and installation interfaces must agree. The main bearing catalogue and cross-brand comparisons are separate dimensional references, not vehicle approvals.

Where are the axle-nut torque and installation instructions?

This application catalogue does not establish a universal torque or a complete installation sequence. Use the current vehicle-specific service procedure, including fastener reuse rules and staged tightening. Do not infer torque from the bearing number.

Does wheel noise prove that one of these parts has failed?

No. Bearing damage, tyres, brakes and driveline faults can produce overlapping symptoms. A reference lookup identifies candidates; it does not diagnose the cause or prove which side has failed.

Look up an exact source part number

Keep the BCA prefix and full marking. Similar numbers from other manufacturers are not automatically cross-references.

Continue the technical investigation

Wheel and hub identification checklist →Investigate wheel bearing noise →Engine and shell-bearing principles →Replacement evidence checklist →Query an actual bearing designation or dimension →

Source and interpretation limits

Factual reference basis: BCA 2021 Wheel Hub Assembly, Bearing and Seal Catalog, published by BCA Bearings, an NTN product line, with its linked numbered footnote reference. Each row retains its source page and restrictions. Vehicle names shared by one source entry remain associated with that entry; source counts are not quantities for sale.

BearingScope provides independently organized technical lookup and interpretation. It does not sell these parts, provide a repair service, certify current fitment, or claim that an absent result is unavailable from a manufacturer. Original public catalogue files and source fingerprints are retained in the site's verification records.