Home / Shop / King AM-Series Main Bearings MB 572AM0.25 Bearings, AM-Series, 1/2 Groove, Alecular Silicon, 0.25mm. Crankshaft Undersize, Mazda, 1.8L, 2.0L, Set of 5

King AM-Series Main Bearings MB 572AM0.25 Bearings, AM-Series, 1/2 Groove, Alecular Silicon, 0.25mm. Crankshaft Undersize, Mazda, 1.8L, 2.0L, Set of 5

SKU: KINGMB_572AM0.25

Main Bearings

King Engine Bearings

King AM-Series Main Bearings MB 572AM0.25 Bearings, AM-Series, 1/2 Groove, Alecular Silicon, 0.25mm. Crankshaft Undersize, Mazda, 1.8L, 2.0L, Set of 5

SKU: KINGMB_572AM0.25

Main Bearings

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Description

King AM-Series main bearings are recommended for street or marine applications. These crankshaft bearings have superior embeddability, which provides greater macro-particle to reduce scratching of the crank journals and tearing or weakening of the Babbitt overlays. King AM-Series main bearings feature tolerance control to within plus or minus .0001—and they're lead-free, making them environmentally-friendly and user-safe. Hundreds of performance sets are available; order the replacement bearings designed to fit your vehicle.

Part Type

Main Bearings

Data: v4.2 - Upd: 2026-10-14 10:41:20

Specifications

Product Attributes - Brand: King Engine Bearings
Product Attributes - Manufacturer's Part Number: MB 572AM0.25
Product Attributes - Part Type: Main Bearings
Product Attributes - Product Line: King AM-Series Main Bearings
Product Attributes - UPC: 611500171819
Product Attributes - Bearing Usage: Performance
Product Attributes - Engine Crankshaft Undersize (in.): 0.010 in.
Product Attributes - Engine Crankshaft Undersize (mm): 0.25mm
Product Attributes - Grooved Bearing: Yes
Product Attributes - Groove Location: Upper
Product Attributes - Groove Style: 1/2
Product Attributes - Thrust Bearing Oversize: Stock
Product Attributes - Bearing Material: Alecular silicon
Product Attributes - Quantity: Sold as a set of 5.

Reference Information

Brand Name/s	King Engine Bearings
StreetFX SKU	kingMB_572AM0.25
SFX Item ID	4860524
Supplier Item Code	4860524
Manufacturer SKU	MB 572AM0.25
Manufacturer UPC	611500171819
Alternative References	KGB-MB572AM025, 572AM0.25, 0.25mm., 1.8L, 2.0L

Compatibility

Application Data

Make	FORD
Model	COURIER
Submodel	BASE
Beginning Year	1972
Ending Year	1974
Engine Type	L4
Liter	1.8
CID	110
CC	1796
Engine Family	Mazda 4-cylinder
Engine Size	1.8L/1796cc
Application Notes	bimetal (aluminum base) Crankshaft Undersize-0.25mm
Engine VIN Code	A

Make	FORD
Model	COURIER
Submodel	BASE
Beginning Year	1972
Ending Year	1974
Engine Type	L4
Liter	1.8
CID	110
CC	1796
Engine Family	Mazda 4-cylinder
Engine Size	1.8L/1796cc
Application Notes	bimetal (aluminum base) Crankshaft Undersize-0.25mm

Make	FORD
Model	COURIER
Submodel	BASE
Beginning Year	1972
Ending Year	1976
Engine Type	L4
Liter	1.8
CID	110
Engine Family	Mazda 4-cylinder
Engine Size	1.8L/110
Application Notes	bimetal (aluminum base) Crankshaft Undersize-0.25mm

Make	FORD
Model	COURIER
Submodel	BASE
Beginning Year	1977
Ending Year	1978
Engine Type	L4
Liter	1.8
CID	110
Engine Family	Mazda 4-cylinder
Engine Size	1.8L/110
Application Notes	bimetal (aluminum base) Crankshaft Undersize-0.25mm
Engine VIN Code	A

Make	FORD
Model	COURIER
Submodel	BASE
Beginning Year	1979
Ending Year	1979
Engine Type	L4
Liter	1.8
CID	110
Engine Family	Mazda 4-cylinder
Engine Size	1.8L/110
Application Notes	bimetal (aluminum base) Crankshaft Undersize-0.25mm
Engine VIN Code	C

Make	FORD
Model	COURIER
Submodel	XLT
Beginning Year	1979
Ending Year	1979
Engine Type	L4
Liter	1.8
CID	110
Engine Family	Mazda 4-cylinder
Engine Size	1.8L/110
Application Notes	bimetal (aluminum base) Crankshaft Undersize-0.25mm
Engine VIN Code	C

Make	MAZDA
Model	1500
Submodel	BASE
Beginning Year	1967
Ending Year	1970
Engine Type	L4
Liter	1.5
CID	91
CC	1490
Engine Family	Mazda 4-cylinder
Engine Size	1.5L/1490cc
Application Notes	bimetal (aluminum base) Crankshaft Undersize-0.25mm

Make	MAZDA
Model	1800
Submodel	BASE
Beginning Year	1970
Ending Year	1971
Engine Type	L4
Liter	1.8
CID	110
CC	1796
Engine Family	Mazda 4-cylinder
Engine Size	1.8L/1796cc
Application Notes	bimetal (aluminum base) Crankshaft Undersize-0.25mm

Make	MAZDA
Model	1800
Submodel	BASE
Beginning Year	1970
Ending Year	1971
Engine Type	L4
Liter	1.8
CID	110
CC	1796
Engine Family	Mazda 4-cylinder
Engine Size	1.8L/1796cc
Application Notes	bimetal (aluminum base) Crankshaft Undersize-0.25mm

Make MAZDA
Beginning Year 1970
Ending Year 1972
Engine Type L4
Engine Family Mazda 4-cylinder
Engine Size 1.8L/1796cc
Make MAZDA
Beginning Year 1977
Ending Year 1978
Engine Type L4
Engine Family Mazda 4-cylinder
Engine Size 1.8L/1796cc
Make MAZDA
Beginning Year 1979
Ending Year 1984
Engine Type L4
Engine Family Mazda 4-cylinder
Engine Size 2.0L/1970cc

Make	MAZDA
Model	616
Submodel	BASE
Beginning Year	1970
Ending Year	1972
Engine Type	L4
Liter	1.6
CID	97
CC	1586
Engine Family	Mazda 4-cylinder
Engine Size	1.6L/1586cc
Application Notes	bimetal (aluminum base) Crankshaft Undersize-0.25mm

Make	MAZDA
Model	618
Submodel	BASE
Beginning Year	1972
Ending Year	1972
Engine Type	L4
Liter	1.8
CID	110
CC	1796
Engine Family	Mazda 4-cylinder
Engine Size	1.8L/1796cc
Application Notes	bimetal (aluminum base) Crankshaft Undersize-0.25mm

Make	MAZDA
Model	618
Submodel	BASE
Beginning Year	1972
Ending Year	1973
Engine Type	L4
Liter	1.8
CID	110
CC	1796
Engine Family	Mazda 4-cylinder
Engine Size	1.8L/1796cc
Application Notes	bimetal (aluminum base) Crankshaft Undersize-0.25mm

Make	MAZDA
Model	626
Submodel	BASE
Beginning Year	1979
Ending Year	1982
Engine Type	L4
Liter	2.0
CC	1970
Engine Family	Mazda 4-cylinder
Engine Size	2.0L/1970cc
Application Notes	bimetal (aluminum base) Crankshaft Undersize-0.25mm

Make	MAZDA
Model	626
Submodel	LX
Beginning Year	1981
Ending Year	1982
Engine Type	L4
Liter	2.0
CC	1970
Engine Family	Mazda 4-cylinder
Engine Size	2.0L/1970cc
Application Notes	bimetal (aluminum base) Crankshaft Undersize-0.25mm

Make	MAZDA
Model	808
Submodel	BASE
Beginning Year	1972
Ending Year	1974
Engine Type	L4
Liter	1.6
CID	97
CC	1586
Engine Family	Mazda 4-cylinder
Engine Size	1.6L/1586cc
Application Notes	bimetal (aluminum base) Crankshaft Undersize-0.25mm

Make	MAZDA
Model	B1600
Submodel	BASE
Beginning Year	1972
Ending Year	1976
Engine Type	L4
Liter	1.6
CID	97
CC	1586
Engine Family	Mazda 4-cylinder
Engine Size	1.6L/1586cc
Application Notes	bimetal (aluminum base) Crankshaft Undersize-0.25mm

Make	MAZDA
Model	B1800
Submodel	BASE
Beginning Year	1977
Ending Year	1978
Engine Type	L4
Liter	1.8
CID	110
CC	1796
Engine Family	Mazda 4-cylinder
Engine Size	1.8L/1796cc
Application Notes	bimetal (aluminum base) Crankshaft Undersize-0.25mm

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King AM-Series Main Bearings MB 572AM0.25 Bearings, AM-Series, 1/2 Groove, Alecular Silicon, 0.25mm. Crankshaft Undersize, Mazda, 1.8L, 2.0L, Set of 5

King AM-Series Main Bearings MB 572AM0.25 Bearings, AM-Series, 1/2 Groove, Alecular Silicon, 0.25mm. Crankshaft Undersize, Mazda, 1.8L, 2.0L, Set of 5

Description

Part Type

Specifications

Reference Information

Compatibility

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